本发明公开一种电动车模式切换扭矩控制方法,包括如下步骤:S1、在将驾驶模式Ⅰ切换至驾驶模式Ⅱ时,获取当前加速踏板开度在驾驶模式Ⅰ和驾驶模式Ⅱ中的扭矩值,计算两者的扭矩差值T;S2、基于扭矩差值T来确定修正系数K1;S3、基于当前加速踏板的开度变化率来确定修正系数K2;S4、检测扭矩差值T是否大于阈值P,若检测结果为否,将基础扭矩变化率Ⅰ作为当前扭矩变化率,若检测结果为是,则通过修正系数K1、修正系数K2对基础扭矩变化率Ⅰ进行修正,形成当前扭矩变化率;S5、基于当前扭矩变化率将电动车的扭矩从当前扭矩调节至目标扭矩。既考虑了模式切换时的安全问题及舒适性问题,也考虑了用户的加速体验需求。

    The invention discloses an electric vehicle mode switching torque control method which comprises the following steps: S1, when a driving mode I is switched to a driving mode II, acquiring torque values of the current accelerator pedal opening degree in the driving mode I and the driving mode II, and calculating a torque difference value T between the two torque values; S2, determining a correction coefficient K1 based on the torque difference value T; S3, determining a correction coefficient K2 based on the current opening change rate of the accelerator pedal; S4, detecting whether the torque difference value T is larger than a threshold value P or not, if the detection result is no, serving the basic torque change rate I as the current torque change rate, and if the detection result is yes, correcting the basic torque change rate I through the correction coefficient K1 and the correction coefficient K2, and forming the current torque change rate; and S5, adjusting the torque of the electric vehicle to the target torque from the current torque based on the current torque change rate. The safety problem and the comfort problem during mode switching are considered, and the acceleration experience requirement of the user is also considered.


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    Titel :

    电动车模式切换扭矩控制方法


    Erscheinungsdatum :

    2024-07-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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