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1. 发明公开

EP2835298A4 VEHICLE BRAKE DEVICE 有权
标题翻译： FAHRZEUGBREMSVORRICHTUNG
公开(公告)号：EP2835298A4
公开(公告)日：2015-04-08
申请号：EP12873636
申请日：2012-04-05
申请人： TOYOTA MOTOR CO LTD
发明人： YAMASAKI TSUYOSHI , OHKUBO MASAYASU
IPC分类号： B60T17/22 , B60T8/17
CPC分类号： B60T13/686 , B60T7/042 , B60T8/4081 , B60T8/88 , B60T13/142 , B60T13/146 , B60T13/662
摘要： A brake ECU (100) brings master cut valves (63, 64) into an open state and brings holding valves (61 FR, 61 FL) into a closed state, thereby controlling a master cylinder (22) and wheel cylinders (42FR, 42FL) to communicate to each other when a magnitude of a hydraulic pressure detected by an accumulator pressure sensor (101) has decreased to a value less than a predetermined value set in advance. On the other hand, the ECU (100) maintains holding valves (61 RR, 61 RR) in an open state, and controls an accumulator (32) and the wheel cylinders (42FR, 42RL) to communicate to each other via linear control valves (65). Then, the ECU (100) determines in which brake system a failure occurs out of a brake system for a front right wheel, a brake system for a front left wheel, and brake systems for rear right and left wheels based on changes in hydraulic pressure detected by a sensor (101), a master cylinder pressure sensor (102), and a control pressure sensor (103).
摘要翻译：制动ECU（100）使主切断阀（63,64）处于打开状态并使保持阀（61FR，61FL）处于关闭状态，从而控制主缸（22）和轮缸（42FR，42FL ），当由蓄压器压力传感器（101）检测到的液压的大小已经减小到小于预先设定的预定值的值时，彼此通信。另一方面，ECU（100）将保持阀（61 RR，61 RR）保持在打开状态，并且控制蓄能器（32）和轮缸（42FR，42RL）经由线性控制阀彼此连通（65）。然后，ECU（100）根据液压压力的变化，判定左前轮右前轮制动系统，左后轮右后制动系统的制动系统发生故障的情况由传感器（101），主缸压力传感器（102）和控制压力传感器（103）检测。

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