| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a brake negative pressure securing device of a vehicle which can secure negative pressure to a brake booster.SOLUTION: When the negative pressure of a brake booster is lower than a threshold (S1), negative pressure generated by the turn-off of an alternator and negative pressure generated by the turn-off of an A/C (Air Conditioner) are calculated (S2), and when the negative pressure of the brake booster can be secured by the turn-off of the alternator, and the negative pressure of the brake booster can be secured by the turn-off of the A/C (S3→S7), it is determined which of the alternator or the A/C should be turned off on the basis of the SOC (State Of Charge) of a battery, and a temperature difference between a target in-room temperature of the A/C, and an actual in-room temperature (S8 to S16).</p> |
