Transmission control system in electric vehicle
US5287772A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1992 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Dec 7, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/022
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A transmission control system in an electric vehicle in which a battery is used as en energy source for a motor and is charged with an electric power generated through the motor by regenerative braking of driving wheels which are connected to the motor through a transmission. In the transmission control system, a regenerative energy capable of being generated at a current transmission ratio, a regenerative energy capable of being generated when such transmission ratio is increased, and a regenerative energy capable of being generated when such transmission ratio is decreased, are calculated and compared with one another, thereby shift-changing the transmission into a shift position which permits the largest regenerative energy to be provided. This ensures that the efficiency of recovery of the energy can be increased to the maximum to effectively charge the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.