Control apparatus for hybrid vehicle
US6469403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2001 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Apr 13, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/917
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.