Variable-speed control for vehicle
US6491122B2 · kind B2 · utility
32Cited by
37References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | May 1, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S180/908
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric scooter is disclosed that has a propulsion system switchable between two modes, one of which allows a higher maximum speed than the other. The mode is selected by a user operated button so constructed that the high-speed mode is selected only while the user continues to operate the switch. A steering angle sensor and a tilt switch-are provided, which prevent the user from selecting the high-speed mode while steering sharply or while going down or across steep slopes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.