阅读说明：本技术 一种柴油机防卡滞系统及方法 (Anti-clamping stagnation system and method for diesel engine ) 是由 彭丽娟 宋大伟 范委修 陈栋栋 于 2019-09-26 设计创作，主要内容包括：本发明公开了一种柴油机防卡滞系统及方法,该系统包括反馈模块、判断模块和瞬时电流发生模块；反馈模块用于采集柴油机系统的实际运行状况信息数据,并将其发送给所述判断模块；判断模块用于对柴油机系统的预设运行参数和其实际运行状况信息数据进行比较,判断实际运行状况信息数据是否满足阈值要求；若不满足阈值要求,则发出触发信号；瞬时电流发生模块用于响应于触发信号产生一瞬时大电流并将其施加于柴油机系统的执行器。本发明的柴油机防卡滞系统包括反馈模块、判断模块和瞬时电流发生模块,其应用于柴油机系统,通过施加瞬时大电流的方式解决滚柱泵卡滞问题,从而降低了因电动输油泵的滚柱泵卡滞造成的柴油机系统无法启动的风险。(The invention discloses a system and a method for preventing a diesel engine from being stuck, wherein the system comprises a feedback module, a judgment module and an instantaneous current generation module; the feedback module is used for acquiring the actual running condition information data of the diesel engine system and sending the actual running condition information data to the judgment module; the judgment module is used for comparing the preset operation parameters of the diesel engine system with the actual operation condition information data thereof and judging whether the actual operation condition information data meets the threshold requirement or not; if the threshold requirement is not met, sending a trigger signal; the instantaneous current generation module is used for responding to the trigger signal to generate and apply an instantaneous large current to an actuator of the diesel engine system. The anti-jamming system of the diesel engine comprises a feedback module, a judgment module and an instantaneous current generation module, is applied to the diesel engine system, and solves the problem of jamming of the roller pump in a mode of applying instantaneous large current, so that the risk that the diesel engine system cannot be started due to the jamming of the roller pump of the electric oil transfer pump is reduced.)

1. An anti-sticking system for a diesel engine, comprising: the device comprises a feedback module, a judgment module and an instantaneous current generation module;

the feedback module is used for acquiring actual running state information data of the diesel engine system and sending the actual running state information data to the judgment module;

the judging module is used for comparing the preset operation parameters of the diesel engine system with the actual operation condition information data thereof and judging whether the actual operation condition information data meets the threshold requirement or not; if the threshold requirement is not met, sending a trigger signal;

the instantaneous current generation module is used for responding to the trigger signal to generate and apply an instantaneous large current to an actuator of the diesel engine system.

2. The system of claim 1, wherein the diesel anti-sticking system further comprises an alarm module for issuing an alarm signal for alerting a worker in response to the trigger signal;

the instantaneous current generation module is used for responding to an actuating signal applied by the operator, generating an instantaneous large current and applying the instantaneous large current to the actuator.

3. The system of claim 2, wherein the alarm module comprises a processor and a sound playing device and a flashing device electrically connected to the processor, respectively, and the processor is electrically connected to the judgment module.

4. The system according to claim 1, characterized in that the actual operating condition information data comprises a pressure value within an electric fuel delivery pump of the diesel engine system and/or an actual rotational speed of the diesel engine system and/or a feedback current value of a driver of the diesel engine system.

5. The system of claim 4, wherein the feedback module comprises a pressure sensor for detecting a pressure value within an electric fuel delivery pump of the diesel engine system and/or a rotational speed detection device for detecting an actual rotational speed of the diesel engine system and/or a current detection device for detecting a feedback current value of a driver of the diesel engine system.

6. The system of claim 1, wherein the actuator comprises an electromagnetic actuator.

7. The system of claim 1, wherein the transient current generation module comprises a transient current generation circuit.

8. An anti-sticking diesel engine system, comprising: a diesel engine block, an electric fuel delivery pump, a roller pump, an electrifying module, an actuator and the diesel anti-sticking system of any one of claims 1 to 7;

the power-on module is used for inputting current to the actuator;

the actuator is used for controlling the roller pump to operate;

the roller pump is used for pressurizing diesel oil in the electric oil delivery pump;

the electric fuel delivery pump is used for delivering diesel to the diesel engine body.

9. A method for preventing the seizure of a diesel engine, which is performed by the system for preventing the seizure of a diesel engine according to any one of claims 1 to 8, comprising the steps of:

the feedback module collects the actual running state information data of the diesel engine system and sends the actual running state information data to the judgment module;

the judgment module compares preset operation parameters of the diesel engine system with actual operation condition information data thereof, and judges whether the actual operation condition information data meets the threshold requirement; if the threshold requirement is not met, sending a trigger signal;

the instantaneous current generation module generates an instantaneous large current in response to the trigger signal and applies the instantaneous large current to the actuator.

10. The method of claim 9, further comprising: the alarm module responds to the trigger signal to send out an alarm signal for reminding a worker;

the instantaneous current generation module generates and applies an instantaneous high current to the actuator in response to an activation signal applied by the operator.

Technical Field

The invention relates to the technical field of electromechanical control, in particular to a clamping stagnation prevention system and method for a diesel engine.

Background

A diesel engine, also referred to as a diesel engine for short, is an engine that achieves energy release by burning diesel. The diesel engine system comprises a diesel engine body, an electric oil delivery pump, a roller pump, an electrifying module, an actuator and the like. The electric oil pump is a device which can ensure that enough diesel oil self-igniting oil tanks are conveyed to an oil injection pump, and maintain a certain oil pressure to overcome the resistance of a pipeline and a fuel filter, so that the diesel oil circulates in a low-pressure pipeline. The roller pump is used for applying pressure to diesel oil in the electric oil transfer pump. The roller pump is a hydraulic element capable of pressurizing liquid and consists of double rows of rollers, a pump body and an eccentric shaft; the roller pump body is provided with a cylindrical cavity, the middle part of the cylindrical cavity is provided with an eccentric shaft, and two rows of cylindrical rollers are arranged between the load shaft and the pump body; due to the eccentricity of the shaft, the volumes of two rollers in the same row at different positions relative to the eccentric direction are different; the volume difference is matched with a corresponding port plate, so that the function of providing oil conveying pressure for the oil conveying pump can be achieved. In the prior art, dust in the roller pump accumulates particulate matters, aged viscous engine oil and other clamping stagnation matters to easily cause clamping stagnation, and the problems of insufficient oil supply, incapability of starting an engine or difficulty in starting the engine and the like frequently occur due to the clamping stagnation of the roller pump when the electric oil transfer pump is started, so that the service lives of the electric oil transfer pump and a diesel engine are influenced.

Disclosure of Invention

The invention aims to provide a system and a method for preventing clamping stagnation of a diesel engine. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to an aspect of an embodiment of the present invention, there is provided a diesel engine anti-seizure system including: the device comprises a feedback module, a judgment module and an instantaneous current generation module;

the feedback module is used for acquiring actual running state information data of the diesel engine system and sending the actual running state information data to the judgment module;

the judging module is used for comparing the preset operation parameters of the diesel engine system with the actual operation condition information data thereof and judging whether the actual operation condition information data meets the threshold requirement or not; if the threshold requirement is not met, sending a trigger signal;

the instantaneous current generation module is used for responding to the trigger signal to generate and apply an instantaneous large current to an actuator of the diesel engine system.

Further, the diesel engine anti-jamming system further comprises an alarm module, wherein the alarm module is used for responding to the trigger signal and sending out an alarm signal for reminding workers;

the instantaneous current generation module is used for responding to an actuating signal applied by the operator, generating an instantaneous large current and applying the instantaneous large current to the actuator.

Further, the alarm module comprises a processor, and a sound playing device and a flashing device which are respectively electrically connected with the processor, and the processor is electrically connected with the judgment module.

Further, the actual operation condition information data includes a pressure value in an electric fuel delivery pump of the diesel engine system and/or an actual rotation speed of the diesel engine system and/or a feedback current value of a driver of the diesel engine system.

Further, the feedback module comprises a pressure sensor and/or a rotating speed detection device and/or a current detection device, the pressure sensor is used for detecting a pressure value in an electric oil transfer pump of the diesel engine system, the rotating speed detection device is used for detecting the actual rotating speed of the diesel engine system, and the current detection device is used for detecting a feedback current value of a driver of the diesel engine system.

Further, the actuator comprises an electromagnetic actuator.

Further, the instantaneous current generation module comprises an instantaneous current generation circuit.

According to another aspect of the embodiments of the present invention, there is provided an anti-stuck diesel engine system, including: a diesel engine block, an electric fuel delivery pump, a roller pump, an electrifying module, an actuator and the diesel anti-sticking system of any one of claims 1 to 7;

the power-on module is used for inputting current to the actuator;

the actuator is used for controlling the roller pump to operate;

the roller pump is used for pressurizing diesel oil in the electric oil delivery pump;

the electric fuel delivery pump is used for delivering diesel to the diesel engine body.

According to another aspect of the embodiments of the present invention, there is provided a method for preventing a diesel engine from being stuck, which is implemented by the system for preventing the diesel engine from being stuck, and comprises the following steps:

the feedback module collects the actual running state information data of the diesel engine system and sends the actual running state information data to the judgment module;

the judgment module compares preset operation parameters of the diesel engine system with actual operation condition information data thereof, and judges whether the actual operation condition information data meets the threshold requirement; if the threshold requirement is not met, sending a trigger signal;

the instantaneous current generation module generates an instantaneous large current in response to the trigger signal and applies the instantaneous large current to the actuator.

Further, the method further comprises: the alarm module responds to the trigger signal to send out an alarm signal for reminding a worker;

the instantaneous current generation module generates and applies an instantaneous high current to the actuator in response to an activation signal applied by the operator.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

the anti-jamming system of the diesel engine comprises a feedback module, a judging module and an instantaneous current generating module, is applied to a diesel engine system, and solves the problem of jamming of the roller pump in a mode of applying instantaneous large current, so that the risk that the diesel engine system cannot be started due to the jamming of the roller pump of the electric oil transfer pump is reduced, the starting reliability of the diesel engine system is improved, the problem that the diesel engine system cannot be started is reduced, and the working efficiency is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

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

Fig. 1 is a block diagram of a diesel anti-sticking system according to a first embodiment of the present application;

FIG. 2 is a flow chart of a method for preventing jamming of a diesel engine according to a first embodiment of the present application;

fig. 3 is a block diagram of a system of a jamming prevention diesel engine according to a second embodiment of the present application;

FIG. 4 is a flowchart of a method for preventing a diesel engine system from being stuck according to a second embodiment of the present application

FIG. 5 is a schematic diagram of the relationship between current and time in the calibratable anti-sticking mode, wherein I1 represents the current value in the normal current start mode, and t1 represents the stop time point of applying the instantaneous large current;

FIG. 6 is a graph of current versus time for a normal current start mode.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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 invention.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.