发明名称 Brake system
摘要 A disk brake is configured as a brake apparatus provided with an electric parking brake function capable of holding braking of a vehicle by driving an electric actuator. A parking brake control apparatus, which controls the electric actuator, actuates the electric actuator so as to release holding of the braking upon determining that the vehicle is in a running state. More specifically, if a speed of the vehicle is maintained at a speed higher than 0 km/h for a predetermined time period, the parking brake control apparatus actuates a rotation/linear motion conversion mechanism by the electric actuator so as to release the holding of the piston of the disk brake.
申请公布号 US9457783(B2) 申请公布日期 2016.10.04
申请号 US201314136340 申请日期 2013.12.20
申请人 HITACHI AUTOMOTIVE SYSTEMS, LTD. 发明人 Kotake Tomoyuki;Yokoyama Wataru;Matsubara Kenichiro
分类号 B60T13/74;B60T7/12;F16D65/18;F16D125/40 主分类号 B60T13/74
代理机构 Wenderoth, Lind & Ponack, L.L.P. 代理人 Wenderoth, Lind & Ponack, L.L.P.
主权项 1. A brake system comprising: a brake apparatus capable of holding or releasing braking of a vehicle by an electric mechanism according to a braking request signal; and a control apparatus configured to drivingly control the electric mechanism by a power source of the vehicle and, when the brake system stops due to a reduction in voltage of the power source, store at least a braking state that indicates the holding or the release of the braking by the electric mechanism, wherein: when the brake system is restarted after the brake system stops, upon determining by vehicle speed that the vehicle is in a running state, the control apparatus controls the electric mechanism so as to release the holding of the braking based on the stored braking state, and upon determining by vehicle speed that the vehicle is in a stopped state, the control apparatus controls the electric mechanism so as to hold the braking based on the stored braking state.
地址 Ibaraki JP