The invention relates to the technical field of electric automobiles, in particular to a braking control method and device of an electric automobile and the electric automobile. The method comprises the steps that when the auxiliary braking intention of a driver is recognized, the current state of the electric automobile is recognized; whether the current state meets an auxiliary braking starting condition or not is judged, and if yes, the electric vehicle is controlled to enter a target auxiliary braking mode matched with the auxiliary braking intention; the actual load of the electric vehicle is detected, the corrected value of the target auxiliary braking mode is matched according to the actual load, the optimal auxiliary braking torque of the target auxiliary braking mode is calculated according to the corrected value, and the driving motor is controlled to output the optimal auxiliary braking torque so as to assist braking of the electric vehicle. Therefore, the problems that in the related technology, the optimal auxiliary braking force cannot be generated only according to the auxiliary braking force matched with the gear, the braking control accuracy and economical efficiency are poor, and the driving experience is poor are solved.
本申请涉及电动汽车技术领域,特别涉及一种电动汽车的制动控制方法、装置及电动汽车,其中,方法包括:当识别到驾驶员的辅助制动意图时,识别电动汽车的当前状态;判断当前状态是否满足辅助制动开启条件,如果满足,则控制电动汽车进入与辅助制动意图匹配的目标辅助制动模式;检测电动汽车的实际负载,根据实际负载匹配目标辅助制动模式的修正值,根据修正值计算目标辅助制动模式的最佳辅助制转矩,并控制驱动电机输出最佳辅助制转矩,以辅助电动汽车制动。由此,解决了相关技术中仅仅根据挡位匹配的辅助制动动力,无法生成最佳辅助制动力,制动控制的准确性及经济性较差,驾驶体验不佳等问题。
Braking control method and device of electric automobile and electric automobile
电动汽车的制动控制方法、装置及电动汽车
2022-07-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
ELECTRIC AUTOMOBILE-BRAKING TORQUE GENERATION DEVICE AND ELECTRIC AUTOMOBILE
Europäisches Patentamt | 2020
|Braking energy recovery control method of electric automobile and electric automobile
Europäisches Patentamt | 2022
|