The invention belongs to the technical field of automobiles, and particularly relates to a pure electric automobile type driving torque control method based on the whole automobile power state. Comprising the following steps that 1, vehicle information is obtained, and the minimum driving power Pmin, the anti-shake coefficient Kdesign and the discharging power safety coefficient Kdischr of the whole vehicle are designed; 2, according to the vehicle information obtained in the step 1, the driver demand power P, the consumed power P < accessory >, the current battery allowable maximum continuous discharging power P < const >, the current battery allowable maximum instantaneous discharging power P < instan > and the maximum recharging power P < chrg > are obtained; 3, calculating a corresponding driving torque according to the power P required by the driver; and 4, controlling the vehicle according to the driving torque calculated in the step 3. According to the method, the driving power is dynamically adjusted based on the related information of the power battery of the whole vehicle, the change rate of the accelerator pedal and the high-voltage power consumption state of the vehicle, so that the current battery discharge power responds to different power requirements of a driver on the premise of meeting the battery performance requirement.

    本发明属于汽车技术领域,具体的说是一种基于整车功率状态的纯电车型驱动扭矩控制方法。包括以下步骤:步骤一、获取车辆信息并且设计整车最小驱动功率Pmin、防抖系数Kdeboun及放电功率安全系数Kdischr;步骤二、根据步骤一获取的车辆信息得到驾驶员需求功率P、消耗功率P附件、当前电池允许最大持续放电功率Pconst、当前电池允许最大瞬时放电功率Pinstan、最大回充功率Pchrg;步骤三、根据驾驶员需求功率P计算相应的驱动扭矩;步骤四、对步骤三计算的驱动扭矩对车辆进行控制。本发明基于对整车动力电池的相关信息、加速踏板变化率及车辆高压功率消耗状态,对驱动功率进行动态的调整,使得当前电池放电功率在满足电池性能要求的前提下响应驾驶员的不同动力需求。


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    Title :

    Pure electric vehicle type driving torque control method based on whole vehicle power state


    Additional title:

    一种基于整车功率状态的纯电车型驱动扭矩控制方法


    Contributors:
    YU CAIYAO (author) / QIAN XIN (author) / WANG KE (author) / LI YANG (author) / WANG LUGANG (author) / AN JIE (author)

    Publication date :

    2023-06-23


    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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