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. 11, 1992
Filed:
Oct. 20, 1989
Applicant:
Inventors:
Koji Tanaka, Tokyo, JP;
Takashi Shima, Tokyo, JP;
Assignee:
Isuzu Motors Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
36442601 ; 3644241 ; 180165 ; 74866 ;
Abstract
A regenerative braking system for a car in which a driving torque required for the car is determined according to the sensed positions of an accelerator pedal and the gear. The motoring capacity of a pump/motor is determined based on the determined driving torque and the sensed pressure of a hydraulic oil circuit including the pump/motor, while the engine of the car is decoupled or coupled as necessary. An electromagnetic clutch is coupled to a power take-off unit and the pump/motor, and the hydraulic oil circuit is closed with the pump/motor being controlled to have the determined motoring capacity in the accelerating mode of the car.