| 摘要 |
PROBLEM TO BE SOLVED: To prevent or reduce a stepping-in phenomenon of a brake pedal caused by actuation of a vacuum pump during cooperative control in braking.SOLUTION: Depressing force of a brake pedal 32 is boosted by a negative pressure type booster 51 and is transmitted to a master cylinder 52. Negative pressure supply to the negative pressure type booster 51 is carried out by a vacuum pump 54. During cooperative control for cooperating regenerative braking force generated by a drive motor 11 with braking force generated by brake liquid pressure obtained by controlling a brake liquid pressure adjusting device 31, the actuation of the vacuum pump 54 is suppressed. |
