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:
Feb. 07, 1989
Filed:
Mar. 17, 1988
Shiro Iwatani, Himeji, JP;
Kazuya Tokugawa, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A starter motor control device comprising a starter motor for starting an engine, an auxiliary switch which can interrupt the energization to the starter motor, a circuit for detecting the rotation speed of the engine or other mechanism related to the rotation speed of the engine to output a signal for preventing the starter motor from being conversely driven by the started engine, a circuit for restraining the starter motor from being energized again for a predetermined time just after the energize to the starter motor is cutoff, a first detecting means having a first set value for judging the voltage at an auxiliary switch driving terminal of a switching element for driving the auxiliary switch, a second detecting means having a second set value for judging the voltage of the auxiliary switch driving terminal, and a circuit for determining the operation of the switching element based on the judgements given by the first and the second detection means.