The invention discloses a brake resistor system for absorbing energy on a new energy vehicle, the brake resistor system comprises a resistor controller and a brake resistor box, the resistor controller comprises an IGBT and an IGBT control circuit, the IGBT and the IGBT control circuit are electrically connected, the brake resistor box comprises a brake resistor and a cooling fan, the brake resistor is electrically connected with the IGBT, and the cooling fan is electrically connected with the IGBT. The heat dissipation branch fan is arranged in the brake resistor box, and the heat dissipation branch fan is electrically connected with the IGBT control circuit; the IGBT control circuit comprises a PWM processing unit. The PWM processing unit is used for obtaining and processing a direct current PWM1 signal and then controlling start and stop of a cooling fan. And the driving unit is used for controlling the turn-off and turn-on of the IGBT after acquiring the PWM1 signal. Resistors in the whole high-voltage loop are used for absorbing excess energy, motor auxiliary braking can be carried out when the whole vehicle is in a full-power state, the problem of motor feedback braking interruption can be solved, and the safety and the driving mileage of the whole vehicle can be improved.
本发明公开了一种新能源车上吸收能量的制动电阻系统,包括电阻控制器和制动电阻箱,其中电阻控制器包括IGBT、IGBT控制电路,所述IGBT、IGBT控制电路电性连接,所述制动电阻箱包括制动电阻和散热风扇,所述制动电阻与IGBT电性连接,所述散热分扇设置在制动电阻箱内部,所述散热分扇与IGBT控制电路电性连接;所述IGBT控制电路包括PWM处理单元,所述PWM处理单元用于获取直流PWM1信号处理后并控制散热风扇的启停;以及驱动单元,所述驱动单元用于获取PWM1信号后控制IGBT的关断和闭合。该发明通过整个高压回路中的电阻吸收多余能量,整车在满电状态下,还可以进行电机辅助制动,会解决电机回馈制动中断的问题,有利于提高整车的安全性和行驶里程。
Braking resistor system for absorbing energy on new energy vehicle
一种新能源车上吸收能量的制动电阻系统
13.09.2024
Patent
Elektronische Ressource
Chinesisch
New energy vehicle braking resistor energy management predictive control system and method
Europäisches Patentamt | 2024
|Vehicle braking energy recovery method, braking energy recovery system and vehicle
Europäisches Patentamt | 2024
|Vehicle with an electrodynamic braking system and brake resistor for a vehicle
Europäisches Patentamt | 2019
|VEHICLE WITH AN ELECTRODYNAMIC BRAKING SYSTEM AND BRAKE RESISTOR FOR A VEHICLE
Europäisches Patentamt | 2018
|