The invention relates to the technical field of new energy vehicle electric driving, in particular to a differential protection method and device, an electric vehicle and a storage medium, and the method comprises the steps that the output torque of a driving motor in the electric vehicle is obtained; if the output torque is within the preset torque interval, a differential protection function of a differential mechanism and/or a gravitational force control system of the electric vehicle are/is activated, and the execution priority of the gravitational force control system is different from that of the differential protection function; and reducing the output torque of the driving motor by utilizing a differential protection function and/or a gravitation control system so as to reduce the rotating speed difference between half shafts in the differential until the rotating speed difference is smaller than a first preset value. Therefore, the problems that the service life of an electric automobile is shortened and the user experience feeling is poor due to the fact that the differential is prone to exceeding the design boundary due to long-time abrasion in the prior art and fails and the automobile breaks down are solved.
本申请涉及新能源车辆电驱动技术领域,特别涉及一种差速器的保护方法、装置、电动汽车及存储介质,其中,包括:获取电动汽车中驱动电机的输出扭矩;若输出扭矩处于预设扭矩区间,则激活差速器的差速保护功能和/或电动汽车的引力控制系统,其中,引力控制系统与差速保护功能之间的执行优先级不同;利用差速保护功能和/或引力控制系统降低驱动电机的输出扭矩,以降低差速器中半轴之间的转速差,直到转速差小于第一预设值。由此,解决了相关技术中差速器由于长时间的磨损容易超过设计边界导致差速器失效、车辆故障,从而降低电动汽车的寿命,用户体验感较差。
Differential protection method and device, electric vehicle and storage medium
差速器的保护方法、装置、电动汽车及存储介质
26.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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