Drive axle for electric vehicle
US4270622A · kind A · utility
Inventor
Key dates
| Filing date | Jun 27, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Jun 27, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1913
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric powered vehicle drive axle is disclosed. The axle of the present invention comprises a ring gear; a first pinion gear for rotating the ring gear; a differential carried by the ring gear; a pair of axle shafts driven by the differential for rotatably driving a pair of drive wheels; the device supported and enclosed by a housing. A second pinion gear is employed which rotatably engages the ring gear. A first electric motor rotatably connected to the first pinion gear is connected to a power source for rotatably driving the vehicle. A second electric motor/generator is connected to the second pinion gear and electrically connected to the power source. The second electric motor/generator selectively powers the differential or derives power from the differential to recharge the power source as dictated by the power needs of the electric vehicle. A plurality of bevel gears are deployed along the length of the axles. Each bevel gear is rotatably connected to a pair of opposed bevel gears, each opposed bevel gear is rotatably connected to an electric motor/generator. By selectively and electrically causing the plurality of motors/generators to either power the axle or be powere…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.