The invention belongs to the technical field of intelligent driving, and discloses a multi-brake redundancy method for a drive-by-wire chassis, which comprises the following steps: S1, sending a brake request instruction; s2, judging whether the electronic hydraulic braking system is normal or not, if yes, entering S3, and if not, entering S4; s3, the electronic hydraulic braking system directly builds pressure for braking; s4, judging whether the motor is normal or not, if so, entering S5, and otherwise, entering S7; s5, the motor is reversely dragged, and the speed is reduced; s6, judging whether the speed is less than or equal to 1km/h, if so, entering S7, and otherwise, returning to S5; s7, judging whether the electronic parking braking system is normal or not, if yes, stopping braking, and if not, entering S8; s8, the backup electronic parking brake system intervenes in braking; and S9, the motor of the electronic parking brake system is pulled up, and brake of the drive-by-wire chassis is stopped. Braking redundancy is achieved on an existing drive-by-wire chassis system, cost is reduced, space is saved, stable and reliable braking is achieved, and the safety of a drive-by-wire chassis is improved.

    本发明属于智能驾驶技术领域,公开了一种线控底盘的多种制动冗余方法,包括以下步骤:S1:发出请求制动指令;S2:判断电子液压制动系统是否正常,若是进入S3,否则进入S4;S3:电子液压制动系统直接建压制动;S4:判断电机是否正常,若正常进入S5,否则进入S7;S5:电机反拖,降低速度;S6:判断速度是否小于等于1km/h,若是进入S7,否则返回S5;S7:判断电子驻车制动系统是否正常,若正常制动停止,否则进入S8;S8:备份电子驻车制动系统介入进行制动;S9:电子驻车制动系统电机拉起,线控底盘制动停止。本发明在现有的线控底盘系统上做到制动的冗余,降低成本,节省空间,实现制动稳定可靠,提高线控底盘的安全性。


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    Titel :

    Multi-brake redundancy method for drive-by-wire chassis


    Weitere Titelangaben:

    一种线控底盘的多种制动冗余方法


    Beteiligte:
    LUO YONGCHANG (Autor:in) / HUANG SHILONG (Autor:in) / DAI YIFAN (Autor:in) / ZHAO YI (Autor:in) / SUN YONGZHENG (Autor:in)

    Erscheinungsdatum :

    2024-04-19


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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