Charge control system for use in internal combustion engine

Details Charge control system for use in internal combustion engine Charge control system for use in internal combustion engine

1995-12-08

1998-06-02

Stephan, Steven L.

Prime-mover dynamo plants

Electric control

Engine control

322 58, 322 59, H02P 910

Patent

active

057604860

ABSTRACT:
A charge control system for an internal combustion engine which is capable of suppressing electromagnetic noise due to a control signal to a generator, and which prevents overcharging a battery even if an input terminal receiving the control signal is grounded. The charge control system is composed of a generator 1 driven by an engine of a motor vehicle and a battery 4 charged with the output of the generator 1. Also included in the system is a computer unit 2 comprising a microcomputer CPU for calculating a target voltage Vreg on the basis of the operational states of the motor vehicle for comparison with a battery voltage Vb so as to output a drive signal in accordance with the comparison result. This drive signal operates a transistor Tr, incorporated into the generator, to control a field current 1f of the generator 1 so that the quantity of the power generation of the generator 1 increases and decreases to control the quantity of the charge to the battery 4.

REFERENCES:
patent: 4542462 (1985-09-01), Morishita et al.
patent: 4583036 (1986-04-01), Morishita et al.
patent: 4651081 (1987-03-01), Nishimura et al.
patent: 4670704 (1987-06-01), Maehara et al.
patent: 5216350 (1993-06-01), Judge et al.
patent: 5448154 (1995-09-01), Kanke et al.

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