| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicular brake device in which a regenerative braking force is utilized to the maximum while reducing an energy loss at a brake booster and a total high energy efficiency is attained. <P>SOLUTION: There is provided a vehicular brake device comprising a hydraulic brake device having a booster part and a regenerative brake device, wherein the booster part is constituted to have an output member, a booster chamber, a pressure source and a valve mechanism 97, the valve mechanism 97 is constructed to have a booster cylinder (an inner piston member 965) formed with a driving pressure input port 971 and a booster chamber connecting port 972, and a booster piston (an inputting member 94) sliding within the booster cylinder 965 while being cooperated with a brake operating member, the booster part is not operated until an operating amount of the brake operating member reaches up to a predetermined amount L but is operated when this amount exceeds the amount L, and further the predetermined amount L is set in response to the maximum value of the regenerative braking force provided by the regenerative brake device. <P>COPYRIGHT: (C)2012,JPO&INPIT |
