The invention discloses an automobile brake heat fading electric compensation system and a control method, and the control method comprises the steps: in the braking process, calculating the braking heat generated in the braking process according to the real-time hydraulic braking force and the real-time rotation speed of wheels; according to the braking heat generated in the braking process and the heat flow effect in the braking process, the temperature variation of the brake is calculated; the brake friction coefficient is calculated according to the brake temperature variation and the relation between the brake temperature and the friction coefficient; ideal motor compensation braking force is calculated according to the brake friction coefficient and the target hydraulic braking force; motor compensation braking force is calculated by considering motor power loss according to the ideal motor compensation braking force; and target braking force of the motor braking system is controlled according to the motor compensation braking force. The problem that the braking efficiency is reduced due to heat fade of the brake can be well solved, and safety accidents of an automobile are avoided.
本发明公开了一种汽车制动器热衰退电补偿系统及控制方法,包括:制动过程中,根据实时液压制动力和车轮实时转动速度计算制动过程中产生的制动热量;根据制动过程中产生的制动热量和制动过程中热流效应计算制动器温度的变化量;根据制动器温度变化量和制动器温度与摩擦系数之间的关系计算制动器摩擦系数;根据制动器摩擦系数和目标液压制动力计算理想电机补偿制动力;考虑电机功率损耗并根据理想电机补偿制动力计算电机补偿制动力;根据电机补偿制动力控制电机制动系统目标制动力。本发明可以良好解决由于制动器热衰退导致的制动效能下降的问题,避免汽车发生安全事故。
Automobile brake heat fading electricity compensation system and control method
一种汽车制动器热衰退电补偿系统及控制方法
2023-10-13
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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