The invention discloses a control method of a brake resistor system, and relates to the technical field of electric automobiles, the control method outputs a PWM signal through a control strategy of a control module, and realizes DC end voltage reduction and energy balance adjustment through a brake resistor, thereby ensuring battery SOC safety and voltage safety, improving driving experience, and protecting battery and whole automobile safety. Besides, according to the control method, PWM signals are output through a control strategy of a control module, capacitor storage energy is consumed through a brake resistor, and therefore a safer active discharging method is achieved, meanwhile, timely and safe control over active discharging is achieved based on a voltage detection feedback closed loop, passive discharging resistance of a high-voltage loop of the motor controller is saved, and the service life of the motor controller is prolonged. And the control cost is effectively optimized.
本发明公开了一种制动电阻系统的控制方法,涉及电动汽车技术领域,该控制方法通过控制模块的控制策略输出PWM信号,并通过制动电阻实现直流端降压和能量平衡调节,从而保证电池SOC安全和电压安全,提高驾驶体验、保护电池和整车安全。此外,该控制方法还通过控制模块的控制策略输出PWM信号,并通过制动电阻消耗电容存储能量,从而实现更安全的主动放电方法,同时基于电压检测回馈闭环,实现主动放电的及时安全控制,节省电机控制器高压回路的被动放电电阻,有效地优化了控制成本。
Control method of brake resistor system
一种制动电阻系统的控制方法
2023-07-07
Patent
Electronic Resource
Chinese
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