The invention belongs to the technical field of vehicles, and discloses a vehicle downhill control method and a vehicle. The vehicle downhill control method comprises a downhill cruise mode, when it is judged that starting conditions of the downhill cruise mode are met, the vehicle enters the downhill cruise mode, and the vehicle speed at the entering moment serves as the set vehicle speed; calculating the total braking force required for the vehicle to go downhill at the set speed; the maximum electric braking force capable of being provided by the motor is compared with the total braking force, and when the maximum electric braking force capable of being provided by the motor is larger than or equal to the total braking force, the motor is controlled to conduct electric braking through the total braking force; and when the maximum electric braking force capable of being provided by the motor is smaller than the total braking force, the motor is controlled to conduct electric braking with the maximum electric braking force, and an air braking controller is controlled to conduct air braking so as to compensate the electric braking. Through timely intervention of pneumatic braking, electric braking can be compensated, so that the vehicle is decelerated to a safe vehicle speed at which the motor can maintain a constant downhill speed, and a driver does not need to control the vehicle.

    本发明属于车辆技术领域,公开车辆下坡控制方法及车辆。车辆下坡控制方法包括下坡巡航模式,当判断符合下坡巡航模式的启动条件时,则进入下坡巡航模式,并以进入时刻的车速作为设定车速;计算车辆以设定车速匀速下坡所需要的总制动力;将电机能够提供的最大电制动力与总制动力进行比较,当电机能够提供的最大电制动力大于或等于所述总制动力时,则控制电机以所述总制动力进行电制动;当电机能够提供的最大电制动力小于所述总制动力时,则控制电机以最大电制动力进行电制动,并控制气制动控制器实施气制动,以对电制动进行补偿。通过及时介入气制动,能够对电制动进行补偿,使车辆减速至电机能够维持其匀速下坡的安全车速,且无需驾驶员操控。


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    Title :

    Vehicle downhill control method and vehicle


    Additional title:

    车辆下坡控制方法及车辆


    Contributors:
    XU JILIN (author) / WANG FUSHENG (author) / ZHENG JIE (author) / QIN MIAO (author) / LI BAOZHI (author)

    Publication date :

    2025-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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