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:
Oct. 22, 2002
Filed:
Apr. 05, 2001
Yoshiaki Omata, Shizuoka-ken, JP;
Kazuhiko Morimoto, Shizuoka-ken, JP;
Suzuki Motor Corporation, Hamamatsu, JP;
Abstract
A motor control apparatus for a hybrid vehicle includes a controller having a normal control mode which detects the open-circuit voltage of a battery at driving stop of the electric motor and which sets voltage parameters according to the open-circuit voltage. In addition, the controller has an electric discharge control mode which sets a battery voltage parameter at a fixed value when the battery open-circuit voltage is higher than for normal control mode. As a result, in the control apparatus for a hybrid vehicle, over-charge and over-electric discharge of the battery is prevented. By controlled charging and electric discharging, battery life is extended. Battery administration is performed by a simplified system of hardware and software.