The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1998
Filed:
Dec. 08, 1995
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
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.