Patent ID: 8689758
Filing Date: 2014-04-08
Classification: F02N

Abstract:
1. A starter control apparatus for a vehicle, in which a starter cranks an engine when a first relay and a second relay are turned on, the starter including a motor and a pinion gear, which is driven to rotate by the motor to crank the engine under a state of engagement with a ring gear of the engine, the pinion gear being switchable to a state of engagement with the ring gear and a state of non-engagement with the ring gear irrespective of an operation and non-operation of the motor, the first relay including a first coil, which is supplied with a power source voltage at one end thereof, and turning on with supply of the power source voltage to drive the pinion gear to the state of engagement with the ring gear, and the second relay including a second coil, which is connected to the one end of the first coil at one end thereof, and turning on with supply of the power source voltage to drive the motor to operate, the starter control apparatus comprising: a first switching part provided in a first current path connecting other end of the first coil, which is opposite to the one end of the first coil, and a ground line, and turning on to render the first current path conductive thereby supplying current in the first coil to turn on the first relay; a second switching part provided in a second current path connecting other end of the second coil, which is opposite to the one end of the second coil, and the ground line, and turning on to render the second current path conductive thereby supplying current in the second coil to turn on the second relay; and an operation preventing switching part provided in a third current path connecting a power source voltage line and a junction of the one ends of the first coil and the second coil, and turning off to render the third current path non-conductive thereby preventing an operation of the starter, wherein the first switching part, the second switching part and the operation preventing switching part are turned on to turn on the first relay and the second relay so that the starter cranks the engine.