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:
Mar. 24, 1981
Filed:
Jul. 03, 1979
Kazumasa Mori, Aichi, JP;
Taro Asahi, Chiryu, JP;
Keiichiro Banzai, Toyota, JP;
Katsutaro Iwaki, Chiryu, JP;
Katsuya Muto, Kariya, JP;
Akira Mase, Handa, JP;
Takayasu Nimura, Nagoya, JP;
Katsumi Itoh, Oobu, JP;
Yoshio Akita, Ichinomiya, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
When an engine key switch of a vehicle is closed, a rotor coil of a three-phase a.c. alternator adapted to charge a vehicle-mounted battery is excited by a first controlling circuit. Even with the closure of the engine key switch, the exciting current is restricted to a predetermined value by a second controlling circuit before the alternator has reached a predetermined operating state. The operating state of the alternator is monitored by detecting a voltage at the neutral point of a stator coil connected in star of the alternator.