The invention relates to a method for realizing hill-holding control of an electric vehicle. The method comprises the following steps of: collecting an electric vehicle state signal and a driving motor state signal; judging whether the electric vehicle is in a slope sliding state, and judging whether the electric vehicle is in a forward gear slope sliding state or a reverse gear slope sliding state; judging whether the rotating speed of the driving motor is larger than or equal to a certain threshold value, and if yes, letting the electric vehicle enter non-hill-holding control auxiliary brakecontrol; otherwise, letting the electric vehicle enter hill-holding control; and sending a calculated control instruction to a motor controller by an electric vehicle hill-holding device through a communication bus. The invention further relates to an electric vehicle hill-holding control device. The method and device for realizing the hill-holding control of the electric vehicle are adopted to judge the slope sliding state of the electric vehicle, hill-holding control and non-hill-holding auxiliary braking control of the electric vehicle are conducted according to the slope sliding state ofthe electric vehicle and a driving motor rotating speed signal, and a too long slope sliding distance and shaking caused by the influence of a data transmission period and transmission delay can be avoided.

    本发明涉及一种实现电动汽车驻坡控制的方法,包括以下步骤:采集电动汽车状态信号和驱动电机状态信号;判断电动汽车是否处于溜坡状态,判断电动汽车处于前进挡溜坡或倒车档溜坡;判断驱动电机转速是否大于等于一定阈值,如果是,则电动汽车进入非驻坡控制辅助制动控制;否则,电动汽车进入驻坡控制;电动汽车驻坡装置将计算得到的控制指令通过通信总线发送给电机控制器。本发明还涉及一种电动汽车驻坡控制装置。采用了本发明的实现电动汽车驻坡控制的方法及其装置,判断电动汽车溜坡状态,并根据电动汽车溜坡状态和驱动电机转速信号,进行电动汽车驻坡控制及非驻坡辅助制动控制,能避免因为数据传输周期与传输延时的影响而导致的溜坡距离过长与抖动。


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    Title :

    Method and device for realizing hill-holding control of electric vehicle


    Additional title:

    实现电动汽车驻坡控制的方法及其装置


    Contributors:
    LIU ZHENGHUI (author) / CAI YOUSHI (author) / PAN KANGKAI (author) / LYU AO (author) / WEI SHENGJIE (author) / GU DAKANG (author)

    Publication date :

    2020-06-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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