The invention discloses an emergency self-braking system of an electric vehicle, and relates to the technical field of emergency self-braking of electric vehicles. An information acquisition module transmits acquired vehicle speed and vehicle distance information of a front vehicle to a data analysis module; the data analysis module obtains a safety distance threshold value JY under the current vehicle speed through the cloud platform, compares the safety distance threshold value JY with the actual distance SJ of the front vehicle, judges whether the vehicle has a collision risk or not, and calculates a corresponding braking degree value through a collision coefficient compensation value PZ when emergency self-braking needs to be carried out; a plurality of collision coefficient compensation value PZ compensation range values respectively correspond to a brake degree value, so that a brake execution module controls a vehicle to brake with the brake degree value Dn, and then a brake pad in a hydraulic system is controlled to apply a brake force of a corresponding degree to a brake disc, so that injury to people in the vehicle caused by too large sudden brake degree of the vehicle is avoided, and the safety of the vehicle is improved. Meanwhile, the vehicle can be matched with different braking schemes according to the influence of environmental factors, and electric energy recovery is facilitated.
本发明公开了一种电动汽车紧急自制动系统,涉及电动汽车紧急自制动技术领域,本发明通过信息采集模块将采集车速与前车车距信息传送至数据分析模块;数据分析模块通过云平台得出当前车速下安全距离阈值JY,与实际前车距离SJ进行比较,判断该车辆是否存在碰撞风险,需要进行紧急自制动时,通过碰撞系数补偿值PZ计算得到对应刹车程度值,通过若干碰撞系数补偿值PZ补偿范围值分别对应一个刹车程度值,使得刹车执行模块控制车辆以刹车程度值为Dn进行刹车,继而控制液压系统中刹车片对制动盘采取相应程度的刹车力度,避免车辆急刹程度过大而引起的车辆内部人员受伤,同时车辆能够根据环境因素影响,匹配不同刹车方案,同时有利于电能回收。
Emergency self-braking system of electric automobile
一种电动汽车紧急自制动系统
2024-01-09
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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