阅读说明：本技术 一种混合动力汽车扭矩控制方法及装置 (A kind of mixing dynamical vehicle torsional moment control method and device ) 是由 巩淼 庞艳红 张彦辉 柯章俊 朱贺 于 2019-09-24 设计创作，主要内容包括：本发明公开一种混合动力汽车扭矩控制方法及装置,涉及混合动力汽车技术领域,其中混合动力汽车扭矩控制方法包括根据操控信号获知驾驶员的驾驶意图；根据驾驶意图计算出动力源需要输出的目标扭矩值；获取当前扭矩值,根据预设扭矩变化响应规则将当前扭矩值切换至目标扭矩值。通过获知驾驶员的驾驶意图计算出动力源需要输出的目标扭矩值,再根据预设扭矩变化响应规则将当前扭矩值切换至目标扭矩值,使得整车的驾驶性得到提升,从而提高驾驶员的驾驶体验度。(The present invention discloses a kind of mixing dynamical vehicle torsional moment control method and device, is related to Development of HEV Technology field, and wherein mixing dynamical vehicle torsional moment control method includes the driving intention that driver is known according to control signal；The target torque value that power source needs to export is calculated according to driving intention；Current torque value is obtained, rule of response is changed according to predetermined torque, current torque value is switched into target torque value.By knowing that the driving intention of driver calculates the target torque value that power source needs to export, current torque value is switched into target torque value further according to predetermined torque variation rule of response, so that the driving of vehicle gets a promotion, to improve the driving experience degree of driver.)

1. a kind of mixing dynamical vehicle torsional moment control method characterized by comprising

The driving intention of driver is known according to control signal；

The target torque value that power source needs to export is calculated according to the driving intention；

Current torque value is obtained, rule of response is changed according to predetermined torque, the current torque value is switched into the target torque Value.

2. mixing dynamical vehicle torsional moment control method according to claim 1, which is characterized in that the predetermined torque variation Rule of response includes:

Calculate the gap torque value between the current torque value and the target torque value；

The gap torque value is divided into three switching sections according to preset ratio, and institute is realized according to default switching law line State the change in torque of three switching sections.

3. mixing dynamical vehicle torsional moment control method according to claim 2, which is characterized in that the default switching law Line include with predetermined inclination angle carry out linear type variation middle straight line section, from the current torque value to be gradually intended to The virgin curve section and light from the end of the middle straight line section gradually to become that the shaped form of the middle straight line section changes The ending curved section changed to the curved shape in the target torque value.

4. mixing dynamical vehicle torsional moment control method according to claim 1, which is characterized in that the control signal includes Accelerator pedal signal and gear information know accelerator open degree value according to the accelerator pedal signal.

5. mixing dynamical vehicle torsional moment control method according to claim 4, which is characterized in that described according to the driving Intention calculates the target torque value that power source needs export

Identify that the accelerator open degree value and the gear information, entire car controller are opened according to the throttle according to the driving intention Angle value and the gear information calculate the target torque value.

6. a kind of mixing dynamical vehicle torsional moment control device characterized by comprising

Acquiring unit, for knowing the driving intention of driver according to control signal；

Computing unit, for calculating the target torque value that power source needs to export according to the driving intention；

Execution unit changes rule of response according to predetermined torque and switches the current torque value for obtaining current torque value To the target torque value.

7. mixing dynamical vehicle torsional moment control device according to claim 6, which is characterized in that the predetermined torque variation Rule of response includes:

Calculate the gap torque value between the current torque value and the target torque value；

The gap torque value is divided into three switching sections according to preset ratio, and institute is realized according to default switching law line State the change in torque of three switching sections.

8. mixing dynamical vehicle torsional moment control device according to claim 7, which is characterized in that the default switching law Line include with predetermined inclination angle carry out linear type variation middle straight line section, from the current torque value to be gradually intended to The virgin curve section and light from the end of the middle straight line section gradually to become that the shaped form of the middle straight line section changes The ending curved section changed to the curved shape in the target torque value.

9. mixing dynamical vehicle torsional moment control device according to claim 6, which is characterized in that the control signal includes Accelerator pedal signal and gear information.

10. mixing dynamical vehicle torsional moment control device according to claim 9, which is characterized in that described to be driven according to Sailing the target torque value that intention calculating power source needs export includes:

Accelerator open degree value is known according to the accelerator pedal signal, and entire car controller is according to the accelerator open degree value and the shelves Position information calculates the target torque value.

Technical field

The present invention relates to Development of HEV Technology field, in particular to a kind of mixing dynamical vehicle torsional moment control method and Device.

Background technique

With the continuous development of society, the continuous rising of living standard, vehicle driving have become people and are choosing vapour Che Shiyi important reference factors, pursuing and driving texture is even more the mark post for becoming most young group's purchase vehicles.Nowadays Country just vigorously advocates energy-saving and emission-reduction, and development new-energy automobile is irresistible, and the transformation from fuel vehicle to electric vehicle is not Stranghtforward, and in such transitional period, hybrid vehicle is increasingly welcome by people, and fuel efficiency drop can be improved Low oil consumption, and dynamic property can be improved.Since hybrid vehicle is not single power source, power source herein is respectively to start Machine and motor, dynamic torque export control policy is increasingly complex compared with traditional vehicle, and power output ride comfort directly influences vehicle Driving performance.Driver most often carries out stepping on loose accelerator pedal operation in driving vehicle processes, steps on loose accelerator pedal power output Ride comfort directly affects the quality that driver evaluates vehicle.Stepping on accelerator pedal driver it is expected that vehicle kinetic force quickly exports, If the too fast driver of power output torque loading gradient can experience vehicle pause and transition in rhythm or melody, impact, if power output torque loading gradient Inability of stepping on the gas, vehicle power too meat can be felt by crossing slow driver；Loose accelerator pedal driver it is expected that vehicle slows down, if the process The power output torque unloading too fast driver of gradient can experience the strong sense of receipts oil and pause and transition in rhythm or melody, if torque unloading gradient is excessively slow whole Vehicle can also keep unexpected speed, and vehicle slows down unobvious.Therefore, torque adds the control for unloading gradient during stepping on loose accelerator pedal System influences vehicle driving most important.

Summary of the invention

The main object of the present invention is to propose a kind of mixing dynamical vehicle torsional moment control method, it is intended to improve the vehicle of vehicle Driving and the Experience Degree of driver.

To achieve the above object, on the one hand, the present invention proposes a kind of mixing dynamical vehicle torsional moment control method comprising:

The driving intention of driver is known according to control signal；

The target torque value that power source needs to export is calculated according to the driving intention；

Current torque value is obtained, rule of response is changed according to predetermined torque, the current torque value is switched into the target Torque value.

On the other hand, the present invention proposes a kind of mixing dynamical vehicle torsional moment control device comprising:

Acquiring unit, for knowing the driving intention of driver according to control signal；

Computing unit, for calculating the target torque value that power source needs to export according to the driving intention；

Execution unit changes rule of response for the current torque value according to predetermined torque for obtaining current torque value Switch to the target torque value.

In technical solution of the present invention, by knowing the driving intention of driver, power source is calculated according to driving intention The target torque value for needing to export, then current torque value is obtained, rule of response is changed according to predetermined torque and cuts current torque value Target torque value is shifted to, so that the driving of vehicle gets a promotion, to improve the driving experience degree of driver.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the flow diagram of mixing dynamical vehicle torsional moment control method embodiment provided by the invention；

Fig. 2 is the schematic block diagram of mixing dynamical vehicle torsional moment control device provided by the invention；

Default switching law line and existing switching of the Fig. 3 for mixing dynamical vehicle torsional moment control method provided by the invention The comparison diagram of regular line；

Default switching law line and existing switching of the Fig. 4 for mixing dynamical vehicle torsional moment control method provided by the invention The local contrast figure of regular line.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.

It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention, Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship, Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.

In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy Sign.In addition, the meaning of the "and/or" occurred in full text, including three schemes arranged side by side, by taking " A and/or B " as an example, including the side A The scheme that case or B scheme or A and B meet simultaneously.In addition, the technical solution between each embodiment can be combined with each other, but To be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occur it is conflicting or can not Will be understood that the combination of this technical solution is not present when realization, also not the present invention claims protection scope within.

Current mixing dynamical vehicle torsional moment control method be mostly use lead storage battery and ohmmeter to high voltage distribution box into Row arrives part and fault detection.Lead storage battery volume is larger, and portability is poor, and storage battery connecting line beam quantity is more and exposed part It is longer, it is easy short circuit, battery is caused to burn.

In consideration of it, the present invention provides a kind of mixing dynamical vehicle torsional moment control method.

Referring to Fig. 1, Fig. 1 is a kind of flow diagram of mixing dynamical vehicle torsional moment control method provided by the invention, The mixing dynamical vehicle torsional moment control method includes step S101~S103:

Step S101: the driving intention of driver is known according to control signal.

Specifically, the driving intention that driver is known before output torque is known by the way that corresponding sensor is arranged The manipulation instruction that driver assigns vehicle, to drive effect required for learning driver.

Step S102: the target torque value that power source needs to export is calculated according to driving intention.

Specifically, after the driving intention for getting driver, according to result required for the manipulation instruction that driver assigns Matching generates the torque command of corresponding output, as target torque value, and entire car controller starts according to target torque value distribution Machine and Motor torque are simultaneously input to gearbox.

Step S103: obtaining current torque value, changes rule of response according to predetermined torque and current torque value is switched to mesh Mark torque value.

Specifically, current torque value that automobile is exporting is known according to the signal that current sensor provides, by preparatory Current torque value is switched to target torque value by the change in torque rule of response of setting, to realize automobile output torque and driver The matching of driving intention.

Specifically, by knowing the driving intention of driver, the mesh that power source needs to export is calculated according to driving intention Torque value is marked, then obtains current torque value, rule of response is changed according to predetermined torque, current torque value is switched into target torque Value, so that the driving of vehicle gets a promotion, to improve the driving experience degree of driver.

In one embodiment, predetermined torque variation rule of response includes:

Calculate the gap torque value between current torque value and target torque value；

Gap torque value is divided into three switching sections according to preset ratio, and realizes three according to default switching law line The change in torque of a switching section.

Specifically, the gap torque value between current torque value and target torque value is first calculated, according still further to preset ratio Gap torque value is divided into three switching sections, three switching sections can be considered initial phase, intermediate stage and ending rank Section reduces the pause and transition in rhythm or melody sense generated when torque switching variation to ask, can will be set as in the intermediate stage obtaining the radical dynamic response stage, And initial phase is set as the linking stages for the gradation type intervened by current torque value to intermediate radical stage torque value, torque Gradient is gradually intended to the torque gradient in intermediate stage, and the ending stage is set as switching to target by intermediate radical stage torque value The linking stages of the gradation type of torque value, torque gradient are gradually deviated from the torque gradient in the intermediate stage, are finally reached target Torque value.

In one embodiment, presetting switching law line includes the middle straight line that linear type variation is carried out with predetermined inclination angle Section, to be gradually intended to the virgin curve section of the shaped form variation of the middle straight line section from current torque value and from institute The end for stating middle straight line section is lighted to be gradually intended to the ending curved section of the curved shape of target torque value variation.

Specifically, presetting switching law line may be, for example, the middle straight line that linear type variation is carried out with predetermined inclination angle Section, to be gradually intended to the virgin curve section of the shaped form variation of middle straight line section from current torque value and from intermediate straight The end of line segment is lighted to be gradually intended to the ending curved section of the curved shape of target torque value variation.Hybrid electric vehicle complete vehicle Controller needs the variable gradient to dynamic torque value to limit when calculating dynamic torque output, and dynamic torque value Variable gradient limits value is the settable maximum tilt angle of corresponding middle straight line section.The main reason for being limited includes: each The state (such as engine, motor external characteristics, speed change box clutch torque carrying capability etc.) of components and the driving of vehicle Property (such as the quick response of drive demand and drive texture).

It is that the default switching of mixing dynamical vehicle torsional moment control method provided in an embodiment of the present invention is advised referring to Fig. 3 and Fig. 4 The then comparison diagram of line and existing switching law line, as shown in figure 4, output torque is promoted to target torque from current torque value Value, the present invention realize the switching of torque by three switch steps, initial phase A as shown in Figure 4, intermediate stage B with And ending stage C, in initial phase A, torque, which promotes gradient, should slowly rise to obtain smooth driving texture, in scala media Section B, torque, which promotes gradient, more radical to have obtained better dynamic response (as shown in the figure with the preset maximum of linear type Change in torque gradient value carries out change in torque response), stage C, currently practical torque value are turned round close to target torque value at the end of Square promotes gradient and gradually slowly reduces, and completes boost phase of entirely stepping on the gas, it is all in positive gradient that entire torque, which promotes gradient, It is realized in limiter；Equally, after driver's accelerator releasing, entire car controller wishes that reducing gas pedal corresponds to torque value, processing side Formula is identical when being promoted with torque.

In one embodiment, control signal includes accelerator pedal signal and gear information, is obtained according to accelerator pedal signal Know accelerator open degree value.

In one embodiment, calculating the target torque value that power source needs export according to driving intention includes:

The accelerator open degree value and the gear information are identified according to the driving intention, and entire car controller is according to the oil Door opening value and the gear information calculate the target torque value.

It referring to fig. 2, is a kind of schematic block diagram of mixing dynamical vehicle torsional moment control device provided in an embodiment of the present invention, It is characterised by comprising: acquiring unit 100, computing unit 200 and execution unit 300.

Acquiring unit 100 is used to know according to control signal the driving intention of driver；Computing unit 200 is used for basis Driving intention calculates the target torque value that power source needs to export；Execution unit 300, for obtaining current torque value, according to Predetermined torque changes rule of response and current torque value is switched to target torque value.

Specifically, by knowing the driving intention of driver, the mesh that power source needs to export is calculated according to driving intention Torque value is marked, then obtains current torque value, rule of response is changed according to predetermined torque, current torque value is switched into target torque Value, so that the driving of vehicle gets a promotion, to improve the driving experience degree of driver.

In one embodiment, predetermined torque variation rule of response includes:

Calculate the gap torque value between current torque value and the target torque value；

The gap torque value is divided into three switching sections according to preset ratio, and real according to default switching law line Existing three switchings section.

Specifically, the gap torque value between current torque value and target torque value is first calculated, according still further to preset ratio Gap torque value is divided into three switching sections, three switching sections can be considered initial phase, intermediate stage and ending rank Section reduces the pause and transition in rhythm or melody sense generated when torque switching variation to ask, can will be set as in the intermediate stage obtaining the radical dynamic response stage, And initial phase is set as the linking stages for the gradation type intervened by current torque value to intermediate radical stage torque value, torque Gradient is gradually intended to the torque gradient in intermediate stage, and the ending stage is set as switching to target by intermediate radical stage torque value The linking stages of the gradation type of torque value, torque gradient are gradually deviated from the torque gradient in the intermediate stage, are finally reached target Torque value.

In one embodiment, the default switching law line includes the centre that linear type variation is carried out with predetermined inclination angle Straightway, from the current torque value be gradually intended to the middle straight line section shaped form variation virgin curve section, And it is lighted from the end of the middle straight line section bent to be gradually intended to the ending of the curved shape of target torque value variation Line segment.

Specifically, presetting switching law line may be, for example, the middle straight line that linear type variation is carried out with predetermined inclination angle Section, to be gradually intended to the virgin curve section of the shaped form variation of middle straight line section from current torque value and from intermediate straight The end of line segment is lighted to be gradually intended to the ending curved section of the curved shape of target torque value variation.Hybrid electric vehicle complete vehicle Controller needs the variable gradient to dynamic torque value to limit when calculating dynamic torque output, and dynamic torque value Variable gradient limits value is the settable maximum tilt angle of corresponding middle straight line section.The main reason for being limited includes: each The state (such as engine, motor external characteristics, speed change box clutch torque carrying capability etc.) of components and the driving of vehicle Property (such as the quick response of drive demand and drive texture).

It is that the default switching of mixing dynamical vehicle torsional moment control method provided in an embodiment of the present invention is advised referring to Fig. 3 and Fig. 4 The then comparison diagram of line and existing switching law line, as shown in figure 4, output torque is promoted to target torque from current torque value Value, the present invention realize the switching of torque by three switch steps, initial phase A as shown in Figure 4, intermediate stage B with And ending stage C, in initial phase A, torque, which promotes gradient, should slowly rise to obtain smooth driving texture, in scala media Section B, torque, which promotes gradient, more radical to have obtained better dynamic response (as shown in the figure with the preset maximum of linear type Change in torque gradient value carries out change in torque response), stage C, currently practical torque value are turned round close to target torque value at the end of Square promotes gradient and gradually slowly reduces, and completes boost phase of entirely stepping on the gas, it is all in positive gradient that entire torque, which promotes gradient, It is realized in limiter；Equally, after driver's accelerator releasing, entire car controller wishes that reducing gas pedal corresponds to torque value, processing side Formula is identical when being promoted with torque.

In one embodiment, control signal includes accelerator pedal signal and gear information, is obtained according to accelerator pedal signal Know accelerator open degree value.

In one embodiment, calculating the target torque value that power source needs export according to driving intention includes:

Accelerator open degree value and gear information are identified according to driving intention, and entire car controller is according to accelerator open degree value and gear Information calculates target torque value.

The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly It is included in other related technical areas in scope of patent protection of the invention.