The invention relates to the field of vehicle driving control of pure electric vehicles, in particular to a slow-speed driving method of a pure electric vehicle, which can keep the vehicle running at a certain speed on roads with different slopes. According to the method, the vehicle can automatically run at a slow speed on a downhill road and stably stop or run at a slow speed on an uphill road, and the vehicle can also be kept running at a specific speed. The method is controlled by a vehicle control unit, and the vehicle control unit is connected with a retarding running switch, a gear sensor, a brake anti-lock state sensor, a gradient signal sensor, a driving motor and a brake pedal state sensor through CAN (controller area network) lines and is connected with an accelerator pedal through a hard line. By judging the driving direction of the vehicle, different energy recovery and reverse dragging torques are determined according to different gradients. According to the method, the cruising ability of the vehicle can be improved, the burden of a braking system is relieved, and the vehicle driving convenience is improved.
一种纯电动汽车的缓速行驶方法,涉及纯电动汽车的整车驾驶控制领域,本发明可在不同坡度道路上保持车辆以一定的速度行驶。该方法能使车辆在下坡道路上自动缓速行驶、上坡道稳定停车或缓速行驶,也可以维持车辆以特定的速度行驶。该方法由整车控制器控制,整车控制器与缓速行驶开关、档位传感器、制动防抱死状态、坡度信号传感器、驱动电机和制动踏板状态传感器通过CAN线连接,与加速踏板是硬线连接。通过判断车辆的行驶方向,根据坡度的不同,确定不同的能量回收及反拖力距。该方法可以增加车辆的续航能力、减轻了制动系统的负担,增加了车辆驾驶的方便性。
Retarded driving method for pure electric vehicle
一种纯电动汽车缓速行驶方法
2022-04-12
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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