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:
Dec. 10, 1991
Filed:
Jun. 25, 1990
Munehiko Mimura, Himeji City, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A novel and improved temperature detecting device for detecting the temperature of a vehicular clutch is disclosed which is able to provide an accurate voltage across the electromagnetic clutch by taking account of a voltage drop across power supply elements inside the clutch and a voltage drop in wiring due to a current flowing through the clutch, improve the accuracy in detection of the clutch temperature, and have high reliability and commerciality for vehicular use. To this end, a clutch voltage sensing element senses a voltage across an electromagnetic clutch. A clutch current calculating element generates a clutch current command signal, which controls the current supply to the electromagnetic clutch, and a clutch cut-off signal based on engine control information data and travel control information data of a vehicle. The clutch current calculating element calculates the electric resistance of the electromagnetic clutch based on the clutch voltage sensed by the clutch voltage sensing element and on the clutch current command signal so as to determine the actual temperature of the electromagnetic clutch. A clutch current controller controls the current supply to the electromagnetic clutch based on a deviation between the clutch current command signal and a current feedback signal representative of a clutch current flowing through the electromagnetic clutch, and on the clutch cut-off signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile