Power assisted manually powered vehicle
US5878831A · kind A · utility
24Cited by
6References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1996 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Mar 4, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A number of embodiments of an electrically assisted manually powered bicycle that utilizes a control means whereby the operation of the electric power assist is curtailed when the battery voltage drops below a lower threshold value. Means are also provided to gradually reduce the electrical power assist prior to this so as to more smoothly transition to a nonpower assisted operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.