阅读说明：本技术 径向柱塞泵的控制方法、装置以及电子终端 (Radial plunger pump control method and device and electronic terminal ) 是由 刘晓 伍荣伟 于 2021-01-06 设计创作，主要内容包括：本申请提供了一种径向柱塞泵的控制方法、装置以及电子终端,涉及液压装置应用技术领域,可以通过需要的实际流量确定对应的标准柱塞模式,进而,根据标准柱塞模式实现与实际流量对应的排量的精准输出,相对于现有的根据改变定子偏心距调节排量,本发明实现了对排量的无级调节,能够缓解排量调节的精确度较低的技术问题。该方法包括：当接收到对所述径向柱塞泵操作的档位命令时,计算需要的实际流量；确定与所述实际流量匹配的标准柱塞模式,其中,所述标准柱塞模式中包括通过所述角度传感器标记的所述转子相对所述定子的转动角度范围；根据所述标准柱塞模式内的所述转动角度范围,控制电磁比例阀及开关阀。(The invention provides a control method and a control device of a radial plunger pump and an electronic terminal, relates to the technical field of hydraulic device application, and can determine a corresponding standard plunger mode through required actual flow, further realize accurate output of displacement corresponding to the actual flow according to the standard plunger mode. The method comprises the following steps: calculating a required actual flow rate when a gear command for operating the radial plunger pump is received; determining a standard plunger mode matched with the actual flow, wherein the standard plunger mode comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor; and controlling an electromagnetic proportional valve and a switch valve according to the rotation angle range in the standard plunger mode.)

1. The control method of the radial plunger pump is characterized in that the radial plunger pump comprises a stator and a rotor, wherein an angle sensor is arranged on the stator; the method comprises the following steps:

calculating a required actual flow rate when a gear command for operating the radial plunger pump is received;

determining a standard plunger mode matched with the actual flow, wherein the standard plunger mode comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor;

and controlling an electromagnetic proportional valve and a switch valve according to the rotation angle range in the standard plunger mode.

2. A method of controlling a radial piston pump in accordance with claim 1, wherein the rotor is provided with a piston, the method further comprising:

monitoring the rotation of the rotor relative to the stator through the angle sensor, and marking the rotation angle of the rotor relative to the stator to obtain a mark symbol corresponding to the rotation angle;

recording the flow rate of the plunger under each of the marker symbols;

and acquiring mark symbol ranges corresponding to the plungers and different flow rates, and determining the mark symbol ranges as the rotation angle ranges of the marked rotor relative to the stator.

3. A method of controlling a radial piston pump according to claim 1, wherein said step of determining a standard piston pattern matching said actual flow rate comprises:

determining the number of plungers participating in movement and the rotation angle range of the rotor relative to the stator marked by the angle sensor according to the actual flow;

and determining the number of the plungers and the range of the rotation angle as a standard plunger mode matched with the actual flow.

4. A method for controlling a radial piston pump according to claim 3, wherein said step of determining the number of pistons involved in the movement and the angular range of rotation of said rotor with respect to said stator, which is marked by said angular sensor, based on said actual flow rate, comprises:

determining the number of plungers participating in movement according to the actual flow, and determining the rotation angle range of the rotor relative to the stator according to the number of the plungers; or the like, or, alternatively,

and determining the rotation angle range of the rotor relative to the stator, and determining the number of the plungers participating in the movement according to the rotation angle range.

5. A method of controlling a radial piston pump according to claim 1, wherein the step of controlling a solenoid proportional valve and an on-off valve according to the rotation angle range in the standard piston mode includes:

and monitoring the actual rotation angle of the rotor relative to the stator through the angle sensor, and controlling the electromagnetic proportional valve and the switch valve when the actual rotation angle is within the rotation angle range.

6. The control method of a radial piston pump according to claim 5, wherein the step of monitoring an actual rotation angle of the rotor with respect to the stator by the angle sensor and controlling the electromagnetic proportional valve and the on-off valve when the actual rotation angle is within the rotation angle range includes:

when the angle sensor monitors that the actual rotation angle is rotated to a first critical value at one end of the rotation angle range, sending an electromagnetic proportional valve electric signal to the plunger to control opening of the electromagnetic proportional valve and closing of the switch valve;

when the angle sensor monitors that the actual rotation angle is rotated to a second critical value at the other end of the rotation angle range, the electromagnetic proportional valve electric signal is stopped being sent to the plunger, so that the electromagnetic proportional valve is controlled to be closed and the switch valve is controlled to be opened.

7. The method of controlling a radial piston pump according to claim 6, comprising, after the step of controlling the electromagnetic proportional valve and the on-off valve according to the rotation angle range in the standard piston mode:

continuing to perform the step of calculating the required actual flow rate when a gear command for the operation of the radial piston pump is received, using the second critical value in the range of the rotation angle as a rotation start point of the rotor.

8. A control device of a radial plunger pump is characterized in that the radial plunger pump comprises a stator and a rotor, wherein an angle sensor is arranged on the stator; the device comprises:

the calculation module is used for calculating the required actual flow when receiving a gear command for operating the radial plunger pump;

the determining module is used for determining a standard plunger mode matched with the actual flow, wherein the standard plunger mode comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor;

and the control module is used for controlling the electromagnetic proportional valve and the switch valve according to the rotating angle range in the standard plunger mode.

9. An electronic terminal comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the method of any of claims 1 to 7.

10. A computer readable storage medium having stored thereon computer executable instructions which, when invoked and executed by a processor, cause the processor to execute the method of any of claims 1 to 7.

Technical Field

The application relates to the technical field of hydraulic device application, in particular to a control method and device of a radial plunger pump and an electronic terminal.

Background

At present, plunger pumps are generally divided into single plunger pumps, horizontal plunger pumps, axial plunger pumps and radial plunger pumps, the plunger pumps are energy conversion devices, can convert mechanical energy output by a prime mover into pressure energy, provide hydraulic oil with certain pressure and flow for a hydraulic system, and are important power elements in the hydraulic system.

When the plunger pump works, the plunger pump mainly depends on the reciprocating motion of the plunger in the cylinder body, so that the volume of the sealed working cavity is changed to realize oil suction and discharge. The radial plunger pump is characterized in that a plunger and a cylinder body of the radial plunger pump are perpendicular to a transmission axis and mainly comprise mechanisms such as a plunger, a rigid body, a stator and a rotor, and oil is sucked and discharged once when the rotor rotates for one circle. When radial plunger pumps pump oil, due to the eccentric action of the stator, when the rotor rotates, the radially arranged plungers on the rotor reciprocate according to the eccentricity of the stator, wherein the eccentricity of the stator is adjusted by two plungers opposite to each other in the radial direction on the pump body, and therefore, the radial plunger pump mainly realizes displacement adjustment by changing the eccentricity of the stator.

However, if the actual displacement required currently cannot be equal to the displacement obtained by the stator eccentricity, that is, the displacement obtained by changing the stator eccentricity cannot be equal to the actual displacement, so that the displacement can only be adjusted by changing the stator eccentricity at present, and only the displacement stepped adjustment can be realized, resulting in lower precision of displacement adjustment.

Disclosure of Invention

The application aims to provide a control method and device of a radial plunger pump and an electronic terminal so as to relieve the technical problem of low precision of displacement adjustment.

In a first aspect, an embodiment of the present application provides a control method for a radial piston pump, where the radial piston pump includes a stator and a rotor, where an angle sensor is disposed on the stator; the method comprises the following steps:

calculating a required actual flow rate when a gear command for operating the radial plunger pump is received;

determining a standard plunger mode matched with the actual flow, wherein the standard plunger mode comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor;

and controlling an electromagnetic proportional valve and a switch valve according to the rotation angle range in the standard plunger mode.

In one possible implementation, the rotor is provided with a plunger, and the method further comprises:

monitoring the rotation of the rotor relative to the stator through the angle sensor, and marking the rotation angle of the rotor relative to the stator to obtain a mark symbol corresponding to the rotation angle;

recording the flow rate of the plunger under each of the marker symbols;

and acquiring mark symbol ranges corresponding to the plungers and different flow rates, and determining the mark symbol ranges as the rotation angle ranges of the marked rotor relative to the stator.

In one possible implementation, the step of determining a standard plunger pattern matching the actual flow rate includes:

determining the number of plungers participating in movement and the rotation angle range of the rotor relative to the stator marked by the angle sensor according to the actual flow;

and determining the number of the plungers and the range of the rotation angle as a standard plunger mode matched with the actual flow.

In one possible implementation, the step of determining the number of plungers participating in the movement and the rotation angle range of the rotor relative to the stator marked by the angle sensor according to the actual flow rate includes:

determining the number of plungers participating in movement according to the actual flow, and determining the rotation angle range of the rotor relative to the stator according to the number of the plungers; or the like, or, alternatively,

and determining the rotation angle range of the rotor relative to the stator, and determining the number of the plungers participating in the movement according to the rotation angle range.

In one possible implementation, the step of controlling the electromagnetic proportional valve and the on-off valve according to the rotation angle range in the standard plunger mode includes:

and monitoring the actual rotation angle of the rotor relative to the stator through the angle sensor, and controlling the electromagnetic proportional valve and the switch valve when the actual rotation angle is within the rotation angle range.

In one possible implementation, the step of monitoring an actual rotation angle of the rotor relative to the stator by the angle sensor, and controlling the electromagnetic proportional valve and the on-off valve when the actual rotation angle is within the rotation angle range includes:

when the angle sensor monitors that the actual rotation angle is rotated to a first critical value at one end of the rotation angle range, sending an electromagnetic proportional valve electric signal to the plunger to control opening of the electromagnetic proportional valve and closing of the switch valve;

when the angle sensor monitors that the actual rotation angle is rotated to a second critical value at the other end of the rotation angle range, the electromagnetic proportional valve electric signal is stopped being sent to the plunger, so that the electromagnetic proportional valve is controlled to be closed and the switch valve is controlled to be opened.

In one possible implementation, after the step of controlling the electromagnetic proportional valve and the on-off valve according to the rotation angle range in the standard plunger mode, the method includes:

continuing to perform the step of calculating the required actual flow rate when a gear command for the operation of the radial piston pump is received, using the second critical value in the range of the rotation angle as a rotation start point of the rotor.

In a second aspect, a control device for a radial piston pump is provided, the radial piston pump comprising a stator and a rotor, wherein an angle sensor is arranged on the stator; the device comprises:

the calculation module is used for calculating the required actual flow when receiving a gear command for operating the radial plunger pump;

the determining module is used for determining a standard plunger mode matched with the actual flow, wherein the standard plunger mode comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor;

and the control module is used for controlling the electromagnetic proportional valve and the switch valve according to the rotating angle range in the standard plunger mode.

In a third aspect, an embodiment of the present application further provides an electronic terminal, which includes a memory and a processor, where the memory stores a computer program that is executable on the processor, and the processor executes the computer program to implement the method in the first aspect.

In a fourth aspect, this embodiment of the present application further provides a computer-readable storage medium storing computer-executable instructions, which, when invoked and executed by a processor, cause the processor to perform the method of the first aspect.

The embodiment of the application brings the following beneficial effects:

according to the control method and device for the radial plunger pump and the electronic terminal, the required actual flow can be calculated through the received gear command for operating the radial plunger pump; determining a standard plunger mode matched with the actual flow, wherein the standard plunger mode comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor; and controlling an electromagnetic proportional valve and a switch valve according to the rotation angle range in the standard plunger mode. In the scheme, the required actual flow is calculated through the received gear command, then the standard plunger mode matched with the actual flow is determined, finally the electromagnetic proportional valve and the switch valve are controlled according to the rotating angle range in the standard plunger mode, when the actual flow changes, the required actual flow is calculated in real time, a standard plunger mode matched with the changed actual flow is determined, then, the electromagnetic proportional valve and the switch valve are controlled to output the displacement according to the rotation angle range in the matched standard plunger mode, so that the corresponding standard plunger mode can be determined according to the required actual flow, and further, the method and the device realize accurate output of the displacement corresponding to the actual flow according to a standard plunger mode, and compared with the prior method of adjusting the displacement according to the change of the eccentricity of the stator, the method and the device realize stepless adjustment of the displacement and can relieve the technical problem of low accuracy of displacement adjustment.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic flowchart of a control method of a radial piston pump according to an embodiment of the present disclosure;

fig. 2 is another schematic flow chart of a control method of a radial piston pump according to an embodiment of the present disclosure;

fig. 3 is another schematic flow chart of a control method of a radial piston pump according to an embodiment of the present disclosure;

fig. 4 is another schematic flow chart of a control method of a radial piston pump according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a control device of a radial piston pump according to an embodiment of the present disclosure;

fig. 6 is another schematic structural diagram of a control device of a radial piston pump according to an embodiment of the present disclosure;

fig. 7 is another schematic structural diagram of a control device of a radial piston pump according to an embodiment of the present disclosure;

fig. 8 is another schematic structural diagram of a control device of a radial piston pump according to an embodiment of the present disclosure;

FIG. 9 illustrates a functional diagram of a radial piston pump provided by an embodiment of the present application;

fig. 10 is a schematic structural diagram of an electronic terminal provided in an embodiment of the present application;

fig. 11 shows another structural schematic diagram of an electronic terminal provided in an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprising" and "having," and any variations thereof, as referred to in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

At present, if the actual displacement that needs at present can't be equal with the displacement that obtains through the stator eccentricity, that is to say when the displacement that obtains after changing the stator eccentricity can't be equal to actual displacement, can't realize the accurate output that corresponds actual displacement according to the method that changes the stator eccentricity, consequently, can only adjust the displacement through changing the stator eccentricity at present, only can realize displacement and have the regulation in stages.

Based on this, the embodiments of the present application provide a control method and apparatus for a radial piston pump, and an electronic terminal, by which the technical problem of low precision of displacement adjustment can be alleviated.

Embodiments of the present application are further described below with reference to the accompanying drawings.

Fig. 1 is a schematic flowchart of a control method of a radial piston pump according to an embodiment of the present disclosure. The radial plunger pump comprises a stator and a rotor, wherein an angle sensor is arranged on the stator, the method is applied to an electronic terminal, and as shown in figure 1, the method comprises the following steps:

step S110, when a gear command for operating the radial plunger pump is received, calculating required actual flow;

in the embodiment of the present invention, the radial plunger pump is provided with an operating handle, the operating handle has different valve core opening degrees, and the shift command is a command obtained according to different valve core opening degrees of the operating handle, for example, the valve core opening degree may be 10 degrees, 15 degrees or 20 degrees, so the shift command is a 10-degree command, a 15-degree command or a 20-degree command; the actual flow is the required actual oil suction and discharge amount.

In this step, when the user pushes the operating handle of the radial plunger pump, the electronic terminal receives the corresponding gear command and calculates the required actual flow rate according to the valve core opening degree in the gear command.

Step S120, determining a standard plunger mode matched with the actual flow, wherein the standard plunger mode comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor;

in an embodiment of the invention, the standard plunger pattern may be a standard scheme of displacement, wherein the standard plunger pattern comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor, for example, the standard plunger pattern is standard plunger pattern 1, wherein the standard plunger pattern 1 comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor (θ:)₀-θ₂) (ii) a The standard plunger mode is a standard plunger mode 2, wherein the standard plunger mode 2 comprises a rotation angle range (theta) of the rotor relative to the stator marked by the angle sensor₀-θ₄) (ii) a The standard plunger pattern is a standard plunger pattern 3, wherein the standard plunger pattern 3 includes a rotation angle range (theta) of the rotor relative to the stator marked by the angle sensor₅-θ₆)。

Illustratively, the standard plunger pattern determined to match the actual flow rate is a standard plunger pattern 2, wherein the standard plunger pattern 2 includes a rotation angle range (θ) of the rotor relative to the stator marked by the angle sensor₃-θ₄)。

In this step, an optimal standard plunger pattern matching the actual flow rate is determined based on the known actual flow rate.

And step S130, controlling an electromagnetic proportional valve and a switch valve according to the rotation angle range in the standard plunger mode.

In the embodiment of the invention, the electromagnetic proportional valve can be a valve for controlling the radial plunger pump to discharge oil to the working mechanism, and the switch valve can be a valve for controlling the radial plunger pump to stop discharging oil to the working mechanism.

In this step, the opening and closing of the electromagnetic proportional valve or the closing of the electromagnetic proportional valve and the opening and closing of the on-off valve are controlled according to the range of the rotation angle in the standard plunger mode, so as to realize the displacement output corresponding to the actual flow.

In the embodiment of the application, the required actual flow rate can be calculated through the received gear command for operating the radial plunger pump; determining a standard plunger mode matched with the actual flow, wherein the standard plunger mode comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor; and controlling an electromagnetic proportional valve and a switch valve according to the rotation angle range in the standard plunger mode.

In the scheme, the required actual flow is calculated through the received gear command, then the standard plunger mode matched with the actual flow is determined, finally the electromagnetic proportional valve and the switch valve are controlled according to the rotating angle range in the standard plunger mode, when the actual flow changes, the required actual flow is calculated in real time, a standard plunger mode matched with the changed actual flow is determined, then, the electromagnetic proportional valve and the switch valve are controlled to output the displacement according to the rotation angle range in the matched standard plunger mode, so that the corresponding standard plunger mode can be determined according to the required actual flow, and further, the method and the device realize the accurate output of the displacement corresponding to the actual flow according to the standard plunger mode, and compared with the prior method of adjusting the displacement according to the change of the eccentricity of the stator, the method and the device realize the stepless adjustment of the displacement, so that the accuracy of the displacement adjustment is improved.

The above steps are described in detail below.

In some embodiments, the rotation angle of the rotor relative to the stator may be monitored in advance by an angle sensor to obtain a marked rotation angle range of the rotor relative to the stator. As an example, the rotor is provided with a plunger, as shown in fig. 2, and the method further includes:

step S210, monitoring the rotation of the rotor relative to the stator through the angle sensor, and marking the rotation angle of the rotor relative to the stator to obtain a mark symbol corresponding to the rotation angle;

in the embodiment of the present invention, the mark symbol may be a preset symbol corresponding to different rotation angles, for example, the symbol corresponding to the rotation angle of 1 degree is θ₁And the symbol corresponding to the 2-degree rotation angle is theta₂And the symbol corresponding to the 8-degree rotation angle is theta₈。

Illustratively, when the rotation angle of the rotor relative to the stator is 0 degrees, the monitoring of the rotation of the rotor relative to the stator through the angle sensor is started, and the current rotation angle of 0 degrees is marked as theta₀And obtaining a mark symbol theta corresponding to the 0 degree rotation angle₀(ii) a When the rotor is monitored to rotate 1 degree relative to the stator, the current 1-degree rotation angle is marked as theta₁And obtaining a mark symbol theta corresponding to the 1 degree rotation angle₁(ii) a When the rotor is monitored to rotate 2 degrees relative to the stator, marking the current 2-degree rotation angle as theta₂And obtaining a mark symbol theta corresponding to the 2-degree rotation angle₂(ii) a When the rotor is monitored to rotate 8 degrees relative to the stator, marking the current 8-degree rotation angle as theta₈And obtaining a mark symbol theta corresponding to the 8-degree rotation angle₈. Therefore, when the rotor rotates one circle relative to the stator, a plurality of rotation angles and mark symbols corresponding to the rotation angles can be obtained.

In the step, because the stator is provided with the angle sensor, when the rotor rotates relative to the stator, the rotation of the rotor relative to the stator can be monitored through the angle sensor, when the rotor rotates once relative to the stator, the rotation angle of the rotor relative to the stator is marked, and finally a plurality of mark symbols corresponding to the rotation angles are obtained.

Step S220, recording the flow of the plunger under each mark symbol;

illustratively, the plunger is at the reference symbol θ₀The lower flow rate is 0 and the plunger is marked with the symbol θ₁The lower flow rate is flow rate 01, and the plunger is at reference number θ₂The lower flow is 02 and the plunger is marked with the symbol θ₈The flow rate below is flow rate 08, so the flow rate of the plunger at each marker is recorded.

In this step, the flow rate of the plunger under each mark symbol is recorded, and the correspondence between the mark symbols and the flow rate is generated.

Step S230, obtaining a mark symbol range corresponding to the plunger and different flow rates, and determining the mark symbol range as a rotation angle range of the marked rotor relative to the stator.

In the embodiment of the present invention, the mark symbol ranges corresponding to the plungers and different flow rates are obtained, for example, the mark symbol range 1 corresponding to the plunger and the flow rate 1 is obtained, and the corresponding relationship between the mark symbol and the flow rate is found, where the mark symbol corresponding to the flow rate 1 is θ₁Therefore, the obtained marker symbol range 1 is θ₀-θ₁And determines the range of reference symbols 1 as the range of rotation angle of the marked rotor with respect to the stator.

The embodiment of the invention monitors the rotation of the rotor relative to the stator through the angle sensor, marks the rotation angle of the rotor relative to the stator and obtains a mark symbol corresponding to the rotation angle; recording the flow rate of the plunger under each mark symbol; generating the corresponding relation between the mark symbols and the flow, determining the mark symbol range of the plunger corresponding to different flows according to the corresponding relation between the mark symbols and the flow, and determining the mark symbol range as the rotation angle range of the marked rotor relative to the stator, so that the rotation angle range of the plunger corresponding to different flows can be obtained according to the angle sensor.

As an example, as shown in fig. 3, the step S120 may include the following steps:

step S310, determining the number of plungers participating in movement and the rotation angle range of the rotor relative to the stator marked by the angle sensor according to the actual flow;

illustratively, 6 plungers are arranged on the rotor, the actual flow rate is 2, and according to the flow rate 2, the number of plungers participating in movement and the rotation angle range of the rotor relative to the stator marked by the angle sensor can be determined.

In the step, according to the actual flow, the number of the plungers participating in the movement and the rotation angle range of the rotor relative to the stator marked by the angle sensor need to be determined, so that the accurate output of the displacement can be realized.

And step S320, determining the number of the plungers and the range of the rotation angle as a standard plunger mode matched with the actual flow.

In this step, since the number of plungers and the rotation angle range are determined based on the actual flow rate, the number of plungers and the rotation angle range are determined as a standard plunger pattern matching the actual flow rate.

According to the embodiment of the invention, the number of the plungers participating in movement and the rotation angle range of the rotor relative to the stator marked by the angle sensor are determined through actual flow; and determining the number of the plungers and the range of the rotation angle as a standard plunger mode matched with the actual flow. Therefore, the corresponding standard plunger mode can be determined through the required actual flow, and further, the accurate output of the displacement corresponding to the actual flow is realized according to the standard plunger mode.

As an example, the step S310 may include the steps of:

step S410, determining the number of plungers participating in movement according to the actual flow, and determining the rotation angle range of the rotor relative to the stator according to the number of the plungers; or the like, or, alternatively,

exemplarily, the number of the plungers is 6, the number of the plungers participating in movement is determined to be 2 according to the actual flow, and then the rotation angle range of the rotor relative to the stator is determined according to the 2 plungers; or determining the number of the plungers participating in movement to be 6 according to the actual flow, and then determining the rotation angle range of the rotor relative to the stator according to the 6 plungers.

In the step, the number of the plungers participating in movement is determined according to the actual flow, and then the rotation angle range of the rotor relative to the stator is determined according to the number of the plungers.

Step S420, determining the rotation angle range of the rotor relative to the stator, and determining the number of the plungers participating in movement according to the rotation angle range.

Exemplarily, the number of the plungers is 6, the rotation angle range of the rotor relative to the stator is determined to be a mark symbol range 1 according to the actual flow, and then the number of the plungers participating in the movement is determined according to the mark symbol range 1;

in the step, the rotating angle range of the rotor relative to the stator is determined according to the actual flow, and then the number of the plungers participating in the movement is determined according to the rotating angle range.

In addition, for the method of determining the standard plunger mode, including but not limited to the above steps S410 and S420, the determination may be based on parameters such as the rotation angle of the plunger or the rotor with respect to the stator.

The number of the plungers participating in movement is determined according to the actual flow, and the rotating angle range of the rotor relative to the stator is determined according to the number of the plungers; or determining the rotation angle range of the rotor relative to the stator, and determining the number of the plungers participating in the movement according to the rotation angle range. Therefore, the standard plunger mode corresponding to the actual flow rate can be determined according to the above two ways.

As an example, the step S130 may include the steps of:

and monitoring the actual rotation angle of the rotor relative to the stator through the angle sensor, and controlling the electromagnetic proportional valve and the switch valve when the actual rotation angle is within the rotation angle range.

Illustratively, the current actual rotation angle is 0 degrees, and the rotation angle range is a mark symbolRange 1 (theta)₀-θ₁) The actual rotation angle of the rotor relative to the stator is monitored through the angle sensor, and when the actual rotation angle reaches a rotation angle range (theta)₀-θ₁) When the pressure is in the inner range, the electromagnetic proportional valve and the switch valve are controlled.

In the step, the actual rotation angle of the rotor relative to the stator is monitored through an angle sensor, and when the actual rotation angle is within the rotation angle range, the electromagnetic proportional valve is controlled to be opened and the switch valve is controlled to be closed, or the electromagnetic proportional valve is controlled to be closed and the switch valve is controlled to be opened.

According to the embodiment of the invention, the actual rotation angle of the rotor relative to the stator is monitored by the angle sensor, and when the actual rotation angle is within the rotation angle range, the electromagnetic proportional valve and the switch valve are controlled, so that the actual rotation angle of the rotor relative to the stator can be monitored by the angle sensor, the electromagnetic proportional valve and the switch valve are controlled according to the rotation angle range in a standard plunger mode, further, the accurate output of the displacement corresponding to the actual flow is realized according to the standard plunger mode, and compared with the existing method for adjusting the displacement according to the change of the eccentricity of the stator, the stepless adjustment of the displacement is realized, the accuracy of the displacement adjustment is improved, and the energy loss and the heating phenomenon of a hydraulic system when oil passes through a throttling hole are reduced.

On the basis of the above embodiment, as an example, the above monitoring the actual rotation angle of the rotor relative to the stator by the angle sensor, and controlling the electromagnetic proportional valve and the on-off valve when the actual rotation angle is within the rotation angle range, as shown in fig. 4, may include the following steps:

step S510, when the angle sensor monitors that the actual rotation angle is turned to a first critical value at one end of the rotation angle range, sending an electromagnetic proportional valve electric signal to the plunger to control opening of an electromagnetic proportional valve and closing of a switch valve;

illustratively, the rotor rotates clockwise and horizontally relative to the stator, the current actual rotation angle is 0 degrees, and the rotation angle range is marked with a symbol range 1 (theta)₀-θ₁) When the angle sensor detects the actual rotationThe dynamic angle is changed from 0 degree to the range of the rotational angle (theta)₀-θ₁) A first critical value theta₀And meanwhile, sending an electric signal of the electromagnetic proportional valve to the plunger participating in movement so as to control the opening of the electromagnetic proportional valve and the closing of the switch valve.

In the step, after the rotor starts to rotate relative to the stator, when the angle sensor monitors that the actual rotation angle rotates to a first critical value at one end of the rotation angle range, an electromagnetic proportional valve electric signal is sent to the plunger participating in movement so as to control the opening of the electromagnetic proportional valve and the closing of the switch valve.

And step S520, when the angle sensor monitors that the actual rotation angle is rotated to a second critical value at the other end of the rotation angle range, stopping sending the electromagnetic proportional valve electric signal to the plunger to control closing of the electromagnetic proportional valve and opening of the switch valve.

Illustratively, when the angle sensor monitors that the actual rotation angle is theta₀To a range of rotation angles (theta)₀-θ₁) Is a second critical value theta₁And meanwhile, sending an electromagnetic proportional valve electric signal to the plunger participating in movement so as to control the closing of the electromagnetic proportional valve and the opening of the switch valve.

In the step, after the actual rotation angle passes through a first critical value at one end of the rotation angle range, the clockwise horizontal rotation is continued, and when the angle sensor monitors that the actual rotation angle is rotated to a second critical value at the other end of the rotation angle range, the electromagnetic proportional valve electric signal sent to the plunger is stopped, namely, the electromagnetic proportional valve electric signal sent to the plunger is cut off, so that the electromagnetic proportional valve is controlled to be closed and the switch valve is controlled to be opened.

According to the embodiment of the invention, whether the actual rotation angle rotates to the first critical value and the second critical value of the rotation angle range is monitored through the angle sensor, and whether the electromagnetic proportional valve electric signal is sent to the plunger is determined, so that the accurate control on the required actual flow output is realized, the accuracy of displacement adjustment is improved, and the energy loss and the heating phenomenon of a hydraulic system when oil passes through the throttling hole are reduced.

As an example, after step S130, the method may further include the steps of:

continuing to perform the step of calculating the required actual flow rate when a gear command for the operation of the radial piston pump is received, using the second critical value in the range of the rotation angle as a rotation start point of the rotor.

Illustratively, the actual rotational angle of the rotor with respect to the stator passes through the last rotational angle range (θ)₀-θ₁) Rotate to theta₁Therefore, will theta₁And continuing to perform the step of calculating the required actual flow rate when a gear command for the operation of the radial piston pump is received as a rotation starting point of the rotor.

According to the embodiment of the invention, the step of calculating the required actual flow when the gear command for operating the radial plunger pump is received is continuously executed by taking the second critical value in the rotating angle range as the rotating starting point of the rotor, so that when the required actual flow is changed, the second critical value in the last rotating angle range can be taken as the rotating starting point of the rotor and continuously works according to the changed actual flow, and therefore, a corresponding standard plunger mode can be determined according to the required actual flow, and further, the accurate output of the displacement corresponding to the actual flow is realized according to the standard plunger mode.

Fig. 5 provides a schematic view of the structure of a control device of a radial piston pump. The device can be applied to an electronic terminal, and the radial plunger pump comprises a stator and a rotor, wherein an angle sensor is arranged on the stator. As shown in fig. 5, the control device 600 of the radial piston pump includes:

a calculation module 610 for calculating a required actual flow rate when a gear command for operation of the radial piston pump is received;

a determining module 620, configured to determine a standard plunger pattern matching the actual flow rate, where the standard plunger pattern includes a rotation angle range of the rotor relative to the stator, which is marked by the angle sensor;

and a control module 630, configured to control the electromagnetic proportional valve and the on-off valve according to the rotation angle range in the standard plunger mode.

In the embodiment of the application, the required actual flow rate can be calculated through the received gear command for operating the radial plunger pump; determining a standard plunger mode matched with the actual flow, wherein the standard plunger mode comprises a rotation angle range of the rotor relative to the stator marked by the angle sensor; and controlling an electromagnetic proportional valve and a switch valve according to the rotation angle range in the standard plunger mode.

In the embodiment, the required actual flow is calculated through the received gear command, then the standard plunger mode matched with the actual flow is determined, finally the electromagnetic proportional valve and the switch valve are controlled according to the rotating angle range in the standard plunger mode, when the actual flow changes, the required actual flow is calculated in real time, a standard plunger mode matched with the changed actual flow is determined, then, the electromagnetic proportional valve and the switch valve are controlled to output the displacement according to the rotation angle range in the matched standard plunger mode, so that the corresponding standard plunger mode can be determined according to the required actual flow, and further, the method and the device realize the accurate output of the displacement corresponding to the actual flow according to the standard plunger mode, and compared with the prior method of adjusting the displacement according to the change of the eccentricity of the stator, the method and the device realize the stepless adjustment of the displacement, so that the accuracy of the displacement adjustment is improved.

In some embodiments, as shown in fig. 6, the control device of the radial piston pump further includes:

a marking module 710, configured to monitor rotation of the rotor relative to the stator through the angle sensor, and mark a rotation angle of the rotor relative to the stator to obtain a mark symbol corresponding to the rotation angle;

a recording module 720, configured to record the flow rate of the plunger under each of the marks;

the obtaining module 730 is configured to obtain a mark range of the plunger corresponding to different flow rates, and determine the mark range as a rotation angle range of the marked rotor relative to the stator.

The embodiment of the invention monitors the rotation of the rotor relative to the stator through the angle sensor, marks the rotation angle of the rotor relative to the stator and obtains a mark symbol corresponding to the rotation angle; recording the flow rate of the plunger under each mark symbol; generating the corresponding relation between the mark symbols and the flow, determining the mark symbol range of the plunger corresponding to different flows according to the corresponding relation between the mark symbols and the flow, and determining the mark symbol range as the rotation angle range of the marked rotor relative to the stator, so that the rotation angle range of the plunger corresponding to different flows can be obtained according to the angle sensor.

In some embodiments, as shown in fig. 7, the determining module 620 includes:

a first determining module 810, configured to determine, according to the actual flow rate, the number of plungers participating in a movement and a rotation angle range of the rotor relative to the stator, which is marked by the angle sensor;

and a second determining module 820, configured to determine the number of the plungers and the rotation angle range as a standard plunger mode matched with the actual flow rate.

According to the embodiment of the invention, the number of the plungers participating in movement and the rotation angle range of the rotor relative to the stator marked by the angle sensor are determined through actual flow; and determining the number of the plungers and the range of the rotation angle as a standard plunger mode matched with the actual flow. Therefore, the corresponding standard plunger mode can be determined through the required actual flow, and further, the accurate output of the displacement corresponding to the actual flow is realized according to the standard plunger mode.

In some embodiments, the first determining module 810 includes:

a third determining module 910, configured to determine, according to the actual flow, the number of plungers participating in a movement, and determine, according to the number of plungers, a rotation angle range of the rotor relative to the stator; or the like, or, alternatively,

a fourth determining module 920, configured to determine a rotation angle range of the rotor relative to the stator, and determine the number of plungers participating in the movement according to the rotation angle range.

The number of the plungers participating in movement is determined according to the actual flow, and the rotating angle range of the rotor relative to the stator is determined according to the number of the plungers; or determining the rotation angle range of the rotor relative to the stator, and determining the number of the plungers participating in the movement according to the rotation angle range. Therefore, the standard plunger mode corresponding to the actual flow rate can be determined according to the above two ways.

In some embodiments, the control module 630 includes:

the first control module 1010 is used for monitoring the actual rotation angle of the rotor relative to the stator through the angle sensor, and controlling the electromagnetic proportional valve and the switch valve when the actual rotation angle is within the rotation angle range.

According to the embodiment of the invention, the actual rotation angle of the rotor relative to the stator is monitored by the angle sensor, and when the actual rotation angle is within the rotation angle range, the electromagnetic proportional valve and the switch valve are controlled, so that the actual rotation angle of the rotor relative to the stator can be monitored by the angle sensor, the electromagnetic proportional valve and the switch valve are controlled according to the rotation angle range in a standard plunger mode, further, the accurate output of the displacement corresponding to the actual flow is realized according to the standard plunger mode, and compared with the existing method for adjusting the displacement according to the change of the eccentricity of the stator, the stepless adjustment of the displacement is realized, the accuracy of the displacement adjustment is improved, and the energy loss and the heating phenomenon of a hydraulic system when oil passes through a throttling hole are reduced.

In some embodiments, as shown in fig. 8, the first control module 1010 includes:

the second control module 1110 is configured to send an electromagnetic proportional valve electric signal to the plunger to control opening of an electromagnetic proportional valve and closing of an on-off valve when the angle sensor monitors that the actual rotation angle is rotated to a first critical value at one end of the rotation angle range;

and a third control module 1120, configured to stop sending the electromagnetic proportional valve electric signal to the plunger when the angle sensor monitors that the actual rotation angle is rotated to a second critical value at the other end of the rotation angle range, so as to control to close the electromagnetic proportional valve and open the on-off valve.

According to the embodiment of the invention, whether the actual rotation angle rotates to the first critical value and the second critical value of the rotation angle range is monitored through the angle sensor, and whether the electromagnetic proportional valve electric signal is sent to the plunger is determined, so that the accurate control on the required actual flow output is realized, the accuracy of displacement adjustment is improved, and the energy loss and the heating phenomenon of a hydraulic system when oil passes through the throttling hole are reduced.

In some embodiments, after the control module 630 includes:

a start of rotation determining module 1210 for continuing the step of calculating the required actual flow rate when receiving the gear command for the radial piston pump operation with the second threshold value in the rotational angle range as the start of rotation of the rotor.

According to the embodiment of the invention, the step of calculating the required actual flow when the gear command for operating the radial plunger pump is received is continuously executed by taking the second critical value in the rotating angle range as the rotating starting point of the rotor, so that when the required actual flow is changed, the second critical value in the last rotating angle range can be taken as the rotating starting point of the rotor and continuously works according to the changed actual flow, and therefore, a corresponding standard plunger mode can be determined according to the required actual flow, and further, the accurate output of the displacement corresponding to the actual flow is realized according to the standard plunger mode.

The control device of the radial plunger pump provided by the embodiment of the application has the same technical characteristics as the control method of the radial plunger pump provided by the embodiment, so that the same technical problems can be solved, and the same technical effects are achieved.

As shown in fig. 9, fig. 9 is an operation schematic diagram of the radial plunger pump, specifically:

the cylinder body 1, the plunger 2, the reset spring 3 and the roller 4 form a radial plunger module, wherein the plunger 2 moves up and down in the cylinder body 1 so as to suck and discharge oil, the radial plunger module is positioned on the rotor 7, and the rotor 7 can be provided with a plurality of radial plunger modules;

a controller 5, corresponding to an electronic terminal in the present application, for controlling the operation of the radial piston pump;

the center of the cam rotating mechanism 8 is a stator, and an angle sensor 9 is positioned on the stator;

the actuating mechanism 10 is equivalent to an operating handle on the radial plunger pump, the operating handle has different valve core opening degrees, and a user can push the radial operating handle to control the radial plunger pump to work.

As shown in fig. 10, an electronic terminal provided in an embodiment of the present application includes a memory 1301 and a processor 1302, where a computer program operable on the processor is stored in the memory, and the processor executes the computer program to implement the steps of the method provided in the foregoing embodiment.

Referring to fig. 11, the electronic terminal further includes: a bus 1303 and a communication interface 1304, and the processor 1302, the communication interface 1304, and the memory 1301 are connected via the bus 1303; the processor 1302 is configured to execute executable modules, such as computer programs, stored in the memory 1301.

The Memory 1301 may include a high-speed Random Access Memory (RAM), and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is implemented through at least one communication interface 1304 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like may be used.

The bus 1303 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 11, but that does not indicate only one bus or one type of bus.

The memory 1301 is used for storing a program, the processor 1302 executes the program after receiving an execution instruction, and a method performed by an apparatus defined by a process disclosed in any of the foregoing embodiments of the present application may be applied to the processor 1302, or implemented by the processor 1302.

The processor 1302 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 1302. The Processor 1302 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory 1301, and a processor 1302 reads information in the memory 1301 and completes the steps of the method in combination with hardware thereof.

Corresponding to the control method of the radial plug, the embodiment of the present application further provides a computer-readable storage medium, where computer-executable instructions are stored, and when the computer-executable instructions are called and executed by a processor, the computer-executable instructions cause the processor to execute the steps of the control method of the radial plug.

The control device of the radial plunger provided by the embodiment of the application can be specific hardware on the device or software or firmware installed on the device. The device provided by the embodiment of the present application has the same implementation principle and technical effect as the foregoing method embodiments, and for the sake of brief description, reference may be made to the corresponding contents in the foregoing method embodiments where no part of the device embodiments is mentioned. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the foregoing systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.

For another example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method for controlling a radial plunger according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the scope of the embodiments of the present application. Are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.