The invention relates to the technical field of new energy automobiles, in particular to a hydraulic braking system of a new energy automobile. The hydraulic braking system reduces the impact degree of a composite braking transition working condition, reduces the impact degree during hydraulic pressure intervention, reduces the impact degree during regenerative braking low-speed withdrawal, and improves the automobile braking comfort. The system comprises a braking force distribution strategy, an automobile model, a battery, a braking motor, a motor force correction strategy, a hydraulic pressure double-closed-loop feedback coordination strategy, an anti-integral saturation variable structure controller and an electronic hydraulic braking system; and the automobile model outputs automobileinformation to act on the braking force distribution strategy, the battery outputs battery information to act on the braking force distribution strategy, the braking force distribution strategy transmits the target hydraulic pressure to the anti-integral saturation variable structure controller, the braking force distribution strategy transmits the target motor force to the brake motor, the brakemotor transmits the motor force to the automobile model, and the anti-integral saturation variable structure controller transmits the motor force to the electronic hydraulic braking system through the hydraulic pressure.
本发明涉及新能源汽车的技术领域,特别是涉及一种新能源汽车液压制动系统,其减小复合制动过渡工况冲击度,使得液压力介入时的冲击度降低,再生制动低速撤出时的冲击度降低,提高了车辆制动舒适性;包括制动力分配策略、车辆模型、电池、制动电机、电机力修正策略、液压力双闭环反馈协调策略、抗积分饱和变结构控制器和电子液压制动系统,车辆模型输出车辆信息作用于制动力分配策略,电池输出电池信息作用于制动力分配策略,制动力分配策略将目标液压力输送至抗积分饱和变结构控制器,制动力分配策略将目标电机力输送至制动电机,制动电机将电机力输送至车辆模型,抗积分饱和变结构控制器经液压力输送至电子液压制动系统。
Hydraulic braking system of new energy automobile
新能源汽车液压制动系统
2020-12-11
Patent
Electronic Resource
Chinese
Air-assisted hydraulic braking system and new energy automobile
European Patent Office | 2020
|European Patent Office | 2015
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