Electric vehicle ramp auxiliary control method and system
Electric vehicle ramp auxiliary control method and system
- New search for: SHAN FENGWU
- New search for: ZHANG XIAODONG
- New search for: JIANG XIAOHUA
- New search for: CHEN LIWEI
- New search for: WU JIN
- New search for: WANG WEI
- New search for: CHEN LIN
- New search for: XI AMENG
- New search for: SHAN FENGWU
- New search for: ZHANG XIAODONG
- New search for: JIANG XIAOHUA
- New search for: CHEN LIWEI
- New search for: WU JIN
- New search for: WANG WEI
- New search for: CHEN LIN
- New search for: XI AMENG
The invention discloses an electric vehicle ramp auxiliary control method and system. The method comprises the following steps: when an electronic parking controller receives a brake state signal sentby a brake pedal, and a brake state is switched to a non-brake state, according to a vehicle state signal sent by the vehicle controller, a gear signal sent by a gear controller, a vehicle speed signal sent by a vehicle body stability controller and an AVH parking state signal, judging whether a ramp auxiliary working condition is met or not at present; if the ramp auxiliary working condition ismet currently and the electronic parking controller receives a current acceleration torque signal sent by the whole vehicle controller, determining whether an acceleration torque value corresponding to the current acceleration torque signal is smaller than a whole vehicle required torque or not; and if so, using the electronic parking controller to drive parking calipers to output the corresponding braking torque so as to meet the whole vehicle required torque. Problems that in the prior art, a ramp auxiliary function is configured in an electric vehicle, special parts need to be newly added,and development cost is high can be solved.
本发明公开了一种电动汽车坡道辅助控制方法及系统，该方法包括：当电子驻车控制器接收到制动踏板发送的制动状态信号从制动状态切换到非制动状态时，根据整车控制器发送的整车状态信号、档位控制器发送的档位信号、车身稳定控制器发送的车速信号和AVH驻车状态信号，判断当前是否满足坡道辅助工作条件；若当前满足坡道辅助工作条件，且电子驻车控制器接收到整车控制器发送的当前加速扭矩信号时，判断当前加速扭矩信号对应的加速扭矩值是否小于整车需求扭矩；若小于，则电子驻车控制器驱动驻车卡钳输出相应的制动力矩，以满足整车需求扭矩。本发明能够解决现有技术在电动汽车中配置坡道辅助功能，需要新增专用零部件，开发成本高的问题。
Document information
Electric vehicle ramp auxiliary control method and system
电动汽车坡道辅助控制方法及系统
2020-10-23
Patent
Electronic Resource
Chinese
| IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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