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:
Mar. 31, 2026
Filed:
Sep. 30, 2021
Hitachi Astemo, Ltd., Hitachinaka, JP;
Hiroaki Takuma, Hitachinaka, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
An electric vehicle control device that controls a vehicle traveling via a transmission coupled to a plurality of electric motors as a drive source, the electric vehicle control device including: a controller configured to control a first electric motor and a second electric motor that are in contact with a first transmission and a second transmission incorporating a liquid medium, respectively, in which in a heating period in which the first transmission or the second transmission is heated, the controller drives and controls one of the first electric motor and the second electric motor with a powering torque obtained by increasing a heating component torque to a required torque of the electric motor, and controls an other of the first electric motor and the second electric motor with a torque obtained by subtracting the heating component torque from the required torque of the electric motor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile