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. 18, 2021
Filed:
Feb. 28, 2018
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Masashi Seimiya, Ibaraki, JP;
Yoshiyuki Yoshida, Ibaraki, JP;
Takashi Matsuoka, Ibaraki, JP;
Tomoyasu Sakaguchi, Ibaraki, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka, JP;
Abstract
There is proposed a gearshift control device which can reduce a transmission load due to preshift, and improve fuel efficiency of a vehicle. A gearshift control device which controls a transmissionincluding two systems of power transmission mechanisms, and preshifts the transmissionbased on a traveling plan during automatic driving of a vehicle. The gearshift control device makes automatic driving preshift execution decision of planning control contents of the transmissionbased on the traveling plan, and preshift execution decision of deciding whether or not to preshift the transmission based on a control plan of the transmission