Apparatus and method for controlling an electrical starter of an

Details Apparatus and method for controlling an electrical starter of an Apparatus and method for controlling an electrical starter of an

1998-09-03

2000-08-15

Nappi, Robert E.

Electricity: motive power systems

Automatic and/or with time-delay means

318431, 318430, H02P 116

Patent

active

061041572

ABSTRACT:
The apparatus for controlling an electrical starter motor for cranking a cranking mechanism of an internal combustion engine to start the engine includes a circuit for making an electrical connection between a voltage source and the starter motor by which the starter motor is coupled with a cranking gear of the engine by means of a shiftable transmission when the circuit is energized and an electronic control unit for controlling at least one of a voltage, a current and an on-time of the electrical starter motor in a stepwise manner in a two-stage control process including a first stage in which the starter motor is coupled with the cranking gear and operated at a reduced rotation speed to reduce wear. The electronic control unit is electrically connected between the voltage source and the starter motor and is an electronic relay that includes a central processing unit and at least two electronic power switches for switching the voltage of the starter motor.

REFERENCES:
patent: 4305002 (1981-12-01), Mortensen
patent: 4412137 (1983-10-01), Hansen et al.
patent: 4743816 (1988-05-01), Prather
patent: 4755689 (1988-07-01), Porter
patent: 4862010 (1989-08-01), Yamamoto
patent: 4917410 (1990-04-01), Cummins et al.
patent: 4988273 (1991-01-01), Faig et al.
patent: 5383428 (1995-01-01), Fasola et al.
patent: 5622148 (1997-04-01), Xue et al.

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