Patent ID: 9267447
Filing Date: 2016-02-23
CPC Classification: B60W,F02D,F02N,Y02T

Claim Text:
1. An engine restart control apparatus mounted on a vehicle having an engine and a brake system including a brake booster, the engine restart control apparatus comprising: a negative pressure detector configured to detect booster negative pressure of the brake booster; an engine restart controller configured to restart the engine after a stop of the engine; and a master pressure detector configured to detect master pressure that is a fluid pressure inside a master cylinder included in the brake system, a storage memory configured to store the booster negative pressure detected by the negative pressure detector, wherein the engine restart controller restarts the engine when the booster negative pressure is reduced by a first set value or more from a reference booster negative pressure, the reference booster negative pressure being selected among booster negative pressures stored in the storage memory as a pressure value detected at a predetermined timing after the stop of the engine, and the engine restart controller restarts the engine when the master pressure decreases to or below a second set value.