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:
Apr. 05, 2022
Filed:
Nov. 20, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Hiroi Nagasawa, Mishima, JP;
Yushi Shibaike, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A powertrain system includes an internal combustion engine, an electric motor, a battery and a control device. The control device is configured to: execute a control input determination processing to solve an optimization problem that minimizes a fuel consumption amount mduring the control time period while taking dynamics of a charging rate SOC as a constraint, and thereby calculate one or more control input values; and execute a system control processing. The control input determination processing includes: a co-state variable determination processing to update a co-state variable p for each time step while using, as an initial value thereof, a final value or an average value thereof during the last control time period; and a control input calculation processing to use the determined co-state variable p and search for and calculate, for each time step, the one or more control input values that minimize an Hamiltonian H.