The invention discloses a distributed electric vehicle brake-by-wire system with fault-tolerant capability, belongs to the technical field of brake-by-wire, and solves the technical problems that the whole system may fail and the driving safety is endangered due to the fact that the brake-by-wire system is influenced when a fault of a whole vehicle controller is not considered in the prior art. The braking force needed by the automobile is calculated according to the braking information, and the braking execution unit controls the hub motor according to the braking force; the braking force is detected, and when the braking force is abnormal, the braking force is dynamically adjusted, so that the safety of the automobile in the running process is improved; performing self-inspection on the system, and immediately starting a safety response measure to process a fault when a component in the system has the fault; and the risk coefficient of the fault part is calculated according to the fault frequency and the processing duration, when the risk coefficient is larger than the coefficient threshold value, the part of the fault part is replaced, and the situation that the automobile cannot run normally due to damage of the part of the fault part is avoided.
本发明公开了一种具有容错能力的分布式电动汽车线控制动系统,属于线控制动技术领域,解决了现有技术中未考虑整车控制器发生故障时,影响线控制动系统,可能会导致整个系统失效,从而危及驾驶安全的技术问题;本发明根据制动信息计算汽车所需的制动力,制动执行单元根据制动力对轮毂电机进行控制;对制动力进行检测,当制动力出现异常时,对制动力进行动态调整,有利于提高汽车行驶过程中的安全性;对系统进行自检,当系统中的部件出现故障时,立即启动安全响应措施,对故障进行处理;根据故障次数和处理时长计算故障部位的风险系数,当风险系数大于系数阈值时,对故障部位的部件进行更换,有利于避免故障部位的部件损坏导致汽车不能正常行驶。
Distributed electric vehicle brake-by-wire system with fault-tolerant capability
一种具有容错能力的分布式电动汽车线控制动系统
2024-06-14
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
A Cost Efficient Fault Tolerant Brake By Wire Architecture
SAE Technical Papers | 2000
|