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:
Aug. 14, 2001

Filed:

Mar. 10, 2000
Applicant:
Inventors:

Toru Itabashi, Anjo, JP;

Kazunari Shirai, Chita-gun, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 9/00 ; H02P 7/29 ;
U.S. Cl.
CPC ...
F02D 9/00 ; H02P 7/29 ;
Abstract

A microcomputer produces to a drive circuit drive command signals for starting to drive and braking a motor so that the position of a throttle valve is controlled to a target position. A current supplied to the motor is limited not to exceed a first current limitation value at the time of motor drive start and braking. When the current limitation continues for a predetermined time period, the current is further limited not to exceed a second current limitation value. The microcomputer detects switching of motor current supply direction. When the current supply direction is switched, a reset command signal is produced to reset a timer operation for a current limitation continuation determination.


Find Patent Forward Citations

Quick Actions:

Itabashi, Toru. (2001). Motor drive control with excess current period timer resetting (U.S. Patent No. 6274993). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6274993

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…