-
公开(公告)号：US11834018B2
公开(公告)日：2023-12-05
申请号：US16565727
申请日：2019-09-10
发明人： Andreas Kohl , Thorsten Wickenhöfer
CPC分类号： B60T13/686 , B60T7/042 , B60T13/745 , B60T17/22 , B60T2270/82
摘要： A braking system for vehicles includes wheel brakes, a pressure-providing device for actuating the wheel brakes, a master brake cylinder having a primary pressure chamber, a secondary pressure chamber, and a secondary piston. The primary pressure chamber is separated from a first set of the wheel brakes by a first, normally open separating valve, and the secondary pressure chamber is separated from a second set of the wheel brakes by a second, normally open separating valve. A pressure medium reservoir is connected to the secondary pressure chamber in the unactuated state of the secondary piston, the braking system is activated in order to actively build up pressure in the brakes in a by-wire operating mode by the pressure-providing device. In the event of a pressure medium surplus in the wheel brakes, the second separating valve is opened if a release of the brake pedal by the driver is detected.
-
公开(公告)号：US11052891B2
公开(公告)日：2021-07-06
申请号：US15940313
申请日：2018-03-29
摘要： An electrohydraulic brake system, comprising a brake master cylinder. A pressure generating device for actuating wheel brakes and an additional brake actuator may both be activated electronically. In a normal mode of operation, an open- and closed-loop control unit detects a braking demand based on the actuation of a brake pedal by the driver and activates the pressure generating device to build up braking torque at the wheel brakes. If the pressure generating device is not activated, the driver gains direct access to the wheel brakes and the control unit activates the additional brake actuator to build up braking torque. In the fallback mode, when a predetermined pedal travel threshold value is reached, the control loop activates the additional brake actuator to build up braking torque. In the event of a succession of brake pedal actuations by the driver, the pedal travel threshold value is increased at least once.
-
公开(公告)号：US20200001846A1
公开(公告)日：2020-01-02
申请号：US16565727
申请日：2019-09-10
发明人： Andreas Kohl , Thorsten Wickenhöfer
摘要： A braking system for vehicles includes wheel brakes, a pressure-providing device for actuating the wheel brakes, a master brake cylinder having a primary pressure chamber, a secondary pressure chamber, and a secondary piston. The primary pressure chamber is separated from a first set of the wheel brakes by a first, normally open separating valve, and the secondary pressure chamber is separated from a second set of the wheel brakes by a second, normally open separating valve. A pressure medium reservoir is connected to the secondary pressure chamber in the unactuated state of the secondary piston, the braking system is activated in order to actively build up pressure in the brakes in a by-wire operating mode by the pressure-providing device. In the event of a pressure medium surplus in the wheel brakes, the second separating valve is opened if a release of the brake pedal by the driver is detected.
-
-
搜索结果
3 条记录 (耗时 0.013 秒)
