The invention belongs to the field of automobile unmanned driving, and particularly relates to an unmanned vehicle braking system which comprises a service braking system and a parking braking system EPB. The service braking system comprises a hydraulic braking system and an electromagnetic braking system. The hydraulic braking system comprises a brake-by-wire power assisting system, a vehicle body stabilizing system ESC and a hydraulic brake actuator integrated in a hub motor. The brake-by-wire power assisting system comprises a brake fluid storage pot, a main cylinder, a push rod, a brake control system ECU and a brushless motor. The brake control system ECU controls the brushless motor to work to drive the push rod to work, and the push rod pushes the main cylinder to form required oil pressure, so that the whole vehicle hydraulic brake system is pushed to work. Electro-hydraulic coupling braking is achieved, electromagnetic braking of the motor is utilized to the maximum degree to meet the whole vehicle braking requirement, the vehicle body posture and the wheel cylinder pressure can be adjusted through the vehicle body stabilizing system ESC, and the safety and stability of vehicle running are improved.
本发明属于汽车无人驾驶领域,具体涉及一种无人驾驶车辆制动系统,包括行车制动系统和驻车制动系统EPB,其中行车制动系统包括液压制动系统和电磁制动系统,液压制动系统包括线控制动助力系统、车身稳定系统ESC以及集成在轮毂电机内的液压制动执行器。所述线控制动助力系统包括制动液储液壶、主缸、推杆、制动控制系统ECU以及无刷电机。制动控制系统ECU控制无刷电机工作带动推杆工作,推杆推动主缸形成所需油压,从而推动整车液压制动系统工作。本发明实现电液耦合制动,最大化利用电机电磁制动实现整车制动需求,车身稳定系统ESC可以调节车身姿态和轮缸压力,提升车辆行驶的安全性和稳定性。
Unmanned vehicle braking system
一种无人驾驶车辆制动系统
2021-07-06
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Braking system for unmanned logistics vehicle and braking method thereof
Europäisches Patentamt | 2023
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