Maximized regenerative braking vehicle braking controller
US5378053A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1993 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | Dec 7, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/84
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle powered by an electric motor which may be operated as a generator to effect regenerative braking of certain vehicle wheels in combination with individual friction brakes associated with other wheels. A commanded vehicle deceleration is apportioned among the wheels by determining the maximum regenerative braking deceleration achievable by drive wheels, and braking the vehicle occurs solely by regenerative braking so long as the commanded deceleration is less than the determined maximum deceleration. When a commanded deceleration exceeds the determined maximum, the regenerative braking is supplemented with friction braking of the other wheels while the maximum regenerative braking is maintained. The maximum regenerative braking of the certain wheels may be supplemented with additional friction braking of those same certain wheels, but this occurs only if the combined deceleration of the regenerative braking of the certain wheels and the friction braking of the other wheels is inadequate to achieve the commanded deceleration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.