Battery charge control system for a hybrid vehicle driven by an electric motor and an internal combustion engine
US5969624A · kind A · utility
82Cited by
8References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1996 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Apr 5, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/917
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hybrid vehicle comprises a motor driving the vehicle's wheels, multiple batteries supplying electric power to the motor, and a generator driven by an internal combustion engine to generate electric power for charging the batteries. Battery sensors detect terminal voltages of the batteries. An ECU controls a DC/DC converter to distribute electric power to independently charge the batteries through charge lines in accordance with the shortage of charge in respective batteries when excess electrical power is available from the generator even after a required amount of electrical power from the generator is used to rotate wheels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.