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.

Date of Patent:
May. 26, 1998

Filed:

Jan. 10, 1997
Applicant:
Inventors:

Hisahiro Ito, Wako, JP;

Tomoyuki Itoh, Wako, JP;

Shinji Yoshikawa, Wako, JP;

Yuji Saito, Wako, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ; B60L / ;
U.S. Cl.
CPC ...
318370 ; 318139 ; 318587 ; 36442408 ; 180 651 ; 180167 ; 74866 ;
Abstract

In an electric vehicle including a transmission provided between a motor and driven wheels, if a shift change detecting means has detected the shift change from a 'D' range or an 'R' range to an 'N' range or a 'P' range when a stoppage detecting means has detected that the vehicle is in its substantially stopped state, a torque command value gradually-decreasing means gradually decreases the torque command value for the motor toward zero. This causes the face pressure of meshed portions of gears within the transmission to be moderately decreased, thereby preventing the generation of a striking sound due to a repulsion of the gear.


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