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:
May. 11, 1999
Filed:
Aug. 08, 1996
Shigeo Tsuzuki, Takahama, JP;
Satoru Tanaka, Nishio, JP;
Takeshi Hara, Chiryu, JP;
Manabu Watanabe, Toyota, JP;
Kenji Omote, Nishio, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
A control system for a vehicular drive unit having an engine, a motor-generator for acting as a motor and a generator, a planetary gear including at least three rotary elements, a battery for storing electric power as generated by the motor-generator and for feeding electric power to drive the motor-generator, an engine controller for causing the engine to output a target output value on a best mileage curve; and a motor-generator controller for controlling the motor-generator. When the output of the motor-generator corresponding to a target output value of the engine is within an outputtable region of the motor-generator, the motor-generator controller causes the motor-generator to output a reaction torque corresponding to the output torque of the engine. When the output of the motor-generator is outside of the outputtable region, the motor-generator controller changes the target output value of the engine so that the output of the motor-generator is within the outputtable region, to thereby change the output of the motor-generator in accordance with the changed target output value of said engine.