| 摘要 |
An engine starting apparatus includes a first and a second power supply path extending from a battery to an electric motor to start an engine. An electromagnetic switch has main contacts disposed in the first power supply path. A resistor is disposed in the second power supply path. A motor relay has relay contacts disposed in series with the resistor. A controller delays the time when the main contacts are closed to apply a full voltage of the battery to the motor until a given time lag has elapsed after the relay contacts are closed to supply electric current to the electric motor through the resistor. Specifically, when it is required to apply the full voltage to the motor to run the motor at a rated speed, the current does not pass through the relay contacts, thus resulting in no voltage drop, which ensures the stability in starting the engine.
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