| 摘要 |
<p>PROBLEM TO BE SOLVED: To early secure booster negative pressure in a negative pressure chamber when the booster negative pressure in the negative pressure chamber of a brake booster device becomes insufficient during automatic stop of an engine.SOLUTION: A driving apparatus includes an engine performing drive with fuel combusted by ignition, a brake booster device which uses intake negative pressure generated with drive of the engine as booster negative pressure and assists brake operation of a driver with the booster negative pressure, and a control part performing automatic stop and restart of the engine. In the apparatus, the control part restarts the engine and executes ignition advance for advancing the ignition timing of the engine more than the usual when the booster negative pressure becomes lower than a predetermined threshold during automatic stop of the engine.</p> |
