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. 03, 1977
Filed:
May. 07, 1975
Applicant:
Inventors:
Assignees:
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JA;
Nippon Denso Kabushiki Kaisha, Aichi, JA;
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318432 ; 318139 ; 180 / ; 192 / ; 74859 ; 74866 ;
Abstract
The embodiments of the control system for automatic transmissions for electric automobiles disclosed includes an electric motor drive control, a changeover device, a speed change control, a torque setting device, a transmitting force detector, and a motor output torque detector. The present control system enables the fluctuation of the transmission output shaft torque to be counteracted by the DC electric motor output torque for realizing extremely smooth transmission of motive power.