Toroidal drive system for electric vehicles
US6053841A · kind A · utility
220Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1997 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Sep 19, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2048/362
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drive system for an electric vehicle, which can make the number of parts as small as possible and minimize the space for arranging the parts in a direction perpendicular to the axis. Between a motor acting as a prime mover and left and right output shafts, there are interposed toroidal type continuously variable transmissions which can individually control their gear ratios and their forces for thrusting power rollers. The RPMs and torques of left and right wheels can be individually controlled, and the differential rotation between the left and right wheels can be smoothly established by the continuously variable transmissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.