发明名称 Brake Control Apparatus
摘要 A brake control apparatus includes a first pressure-applying section connected through a first oil passage to a wheel cylinder; a pump; a communication valve provided on a second oil passage which connects the first oil passage with the pump; a backflow passage connecting a suction side of the pump with a portion between the pump and the communication valve; a pressure-regulating valve provided on the backflow passage; and a control unit. The control unit attains a first state that causes the first pressure-applying section to apply hydraulic pressure to the wheel cylinder, and a second state that causes the pump to apply hydraulic pressure to the wheel cylinder by driving the pump and at least one of the communication valve and the pressure-regulating valve. The control unit actuates the at least one with a delay relative to an actuation of the pump, when switching to the second state.
申请公布号 US2014375113(A1) 申请公布日期 2014.12.25
申请号 US201414305764 申请日期 2014.06.16
申请人 Hitachi Automotive Systems, Ltd. 发明人 HIGASHI Toshihiko
分类号 B60T13/16;B60T13/68;B60T13/58;B60T13/18 主分类号 B60T13/16
代理机构 代理人
主权项 1. A brake control apparatus comprising: a first pressure-applying section connected through a first oil passage to a wheel cylinder, and configured to apply hydraulic pressure to the wheel cylinder; a pump provided separately from the first pressure-applying section, and configured to apply hydraulic pressure to the wheel cylinder; a communication valve provided on a second oil passage which connects the first oil passage with the pump; a backflow passage connecting a suction side of the pump with a portion between the pump and the communication valve in the second oil passage, the backflow passage being connected with a pressure-reducing oil passage; a pressure-regulating valve provided on the backflow passage; and a control unit configured to control the pump, the communication valve and the pressure-regulating valve, wherein the control unit is configured to attain a first state that causes the first pressure-applying section to apply hydraulic pressure to the wheel cylinder, and a second state that causes the pump to apply hydraulic pressure to the wheel cylinder by driving the pump and at least one of the communication valve and the pressure-regulating valve in an opening direction, andto actuate the at least one of the communication valve and the pressure-regulating valve with a delay relative to an actuation of the pump, when switching from the first state to the second state.
地址 Hitachinaka-shi JP