The invention discloses an automobile brake-by-wire system and a braking method thereof, and belongs to the technical field of electric automobile braking, the automobile brake-by-wire system comprises a hydraulic braking unit used for distributing oil pressure of four wheel cylinder hydraulic pipelines to realize braking of four wheel cylinders; and the pedal simulation unit is respectively connected with the hydraulic braking unit, the pressure building unit, the oil pot and the vehicle controller, and is used for identifying the braking intention of a driver and transmitting a signal to the vehicle controller for vehicle braking. And the pressure buildup unit is connected with the hydraulic braking unit, the pedal simulation unit, the oil pot and the vehicle controller and used for conducting braking assistance in the vehicle braking process and transmitting hydraulic pressure to the hydraulic braking unit to complete brake-by-wire. The brake-by-wire system has the advantages that the pressure of a traditional brake-by-wire system is easy to control, and the pedal feeling can be simulated; an active braking function of automatic driving is achieved, the dynamic response is fast, and the pressure adjusting precision is high; and meanwhile, a manual emergency braking backup mode after system failure is achieved.

    本发明公开了一种汽车线控制动系统及其制动方法,属于电动汽车制动技术领域,包括液压制动单元,用于四个轮缸液压管路的油压进行分配,实现四个车轮轮缸的制动;踏板模拟单元,分别与液压制动单元、建压单元、油壶、车辆控制器相连,用于识别驾驶员制动意图,并将信号传送至车辆控制器进行车辆制动。建压单元,分别与液压制动单元、踏板模拟单元、油壶、车辆控制器相连,用于在车辆制动过程中进行制动助力,并将液压力传送至液压制动单元,完成线控制动。本发明既具备传统线控制动系统的压力容易控制,可模拟踏板感觉的功能;又具备自动驾驶的主动制动功能,动态响应快、压力调节精度高;同时还具备系统失效后的人力紧急制动备份方式。


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    Title :

    Automobile brake-by-wire system and braking method thereof


    Additional title:

    一种汽车线控制动系统及其制动方法


    Contributors:
    ZHAO YOUHONG (author) / LI WEI (author) / LIU JINGANG (author) / MENG BUMIN (author) / FU BING (author) / YI NIANYU (author)

    Publication date :

    2022-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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