Self-adaptive ramp parking and starting method and device for pure electric light truck

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Self-adaptive ramp parking and starting method and device for pure electric light truck

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ZHAO SHUANG / SU SONGLIN / ZHU YONGCHANG / WU ZHAOLIANG / ZHAO WEIFENG / YAN YIFEI / WU AOXUE

The invention discloses a self-adaptive ramp parking and starting method and device for a pure electric light truck, and the ramp parking and starting method comprises the steps: obtaining a torque value of an accelerator pedal when the pure electric light truck accelerates and starts again in a ramp parking state; and the larger one of the prestored slope-holding torque and the torque of the accelerator pedal serves as the current slope-holding torque for preventing the vehicle from sliding backwards and is sent to the power control unit, and the prestored slope-holding torque corresponds to the current load of the pure electric light truck. According to the method, the hill-holding torque corresponding to the current load of the vehicle is pre-stored in the vehicle, the power control unit takes the larger one of the pre-stored hill-holding torque and the accelerator pedal torque as the current hill-holding torque when acceleration starting is carried out on the ramp, rapid control over the motor torque in the starting process is achieved, and the starting speed is increased. Therefore, the method is suitable for ramp parking and starting of the pure electric light truck under different load conditions, and the driving stability of the pure electric light truck is improved.

本申请公开了一种纯电动轻卡的自适应坡道驻坡和起步方法及装置，坡道驻坡和起步方法包括：纯电动轻卡在坡道驻坡状态下再次加速起步时，获得加速踏板的扭矩值；将预存的驻坡扭矩与加速踏板的扭矩中较大者作为当前防止车辆后溜的驻坡扭矩，并发送给动力控制单元，其中，预存的驻坡扭矩与纯电动轻卡的当前载重对应。本申请在车辆中预存与车辆的当前载重对应的驻坡扭矩，在坡道上加速起步时，动力控制单元将预存的驻坡扭矩和加速踏板扭矩中较大者作为当前驻坡扭矩，实现起步过程中对电机扭矩的快速控制，防止坡道起步过程中车辆后溜以及起步扭矩抖动，因此本申请适用于纯电动轻卡在不同载重情况下的坡道驻坡和起步，提升了纯电动轻卡的驾驶平稳性。

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Title :

Self-adaptive ramp parking and starting method and device for pure electric light truck

Additional title:

一种纯电动轻卡的自适应坡道驻坡和起步方法及装置

Contributors:

ZHAO SHUANG (author) / SU SONGLIN (author) / ZHU YONGCHANG (author) / WU ZHAOLIANG (author) / ZHAO WEIFENG (author) / YAN YIFEI (author) / WU AOXUE (author)

Publication date :

2023-07-07

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen