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:
Jan. 07, 2003
Filed:
Apr. 03, 2001
Yoshiaki Omata, Shizuoka-ken, JP;
Kazuhiko Morimoto, Shizuoka-ken, JP;
Suzuki Motor Corporation, Hamamatsu, JP;
Abstract
A hybrid vehicle includes an engine and a motor disposed therein as a vehicle-propelling system, the motor being connected to an output shaft and having both driving and power-generating functions. The vehicle includes an engine control apparatus which controls a running state of the engine and a motor control apparatus which controls both driving and power-generating states of the motor to be independent from the control of the engine by the engine control apparatus. The motor control apparatus functions to detect an open-circuit voltage of a main battery at motor driving stop and to set an upper limit-determining voltage and a lower limit-determining voltage for motor driving according to the main battery open-circuit voltage. As a result, by the control apparatus, an over-charge and an over-electric discharge of the main battery can be prevented, and it is possible to extend battery life.