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:
Jun. 24, 2003
Filed:
Aug. 03, 2001
Yoshiaki Omata, Hamamatsu, JP;
Kazuhiko Morimoto, Hamamatsu, JP;
Suzuki Motor Corporation, Hamamatsu, JP;
Abstract
A control apparatus enhances charge and discharge performance of a main battery in a low temperature environment, extends the life of the main battery and improves the reliability of the whole system. The control apparatus is for a hybrid vehicle having an engine and an electric motor disposed therein. The electric motor has both driving and power-generating functions to directly connect to the engine mounted on the hybrid vehicle. The vehicle includes a main battery which supplies driving electric power to the electric motor and is charged by generated electric power from the electric motor. The vehicle includes a temperature sensor for detecting a temperature of the main battery. A controller controls to prohibit power-generation driving of the electric motor when a main battery temperature detected by the temperature sensor is under a set temperature, when the electric motor is operating in a power-generation driving mode, when an open-circuit voltage value of the main battery exceeds a set voltage value, and when a generated electric power value of the electric motor is less than a set electric power.