| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve brake responsiveness at the time of hard braking when both regenerative braking and frictional braking are carried out. <P>SOLUTION: When requested braking force is larger than a predetermined value, both the regenerative braking and the frictional braking using brake liquid pressure from a pump device are carried out. When the hard braking is determined to be necessary, the ratio of the regenerative braking is made smaller relative to the requested braking force. In figures 9, 10, the requested braking force is determined based on a distance from an obstacle (approximately relative speed) (Q26). Larger one is selected as the requested braking force (Q40) from either a first tentative requested braking force (Q32) determined based on the distance from the obstacle or a second tentative requested braking force (Q36) determined based on a braking operation amount by a driver. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
