Electric auxiliary drive for a travelling device primarily driven, in particular drawn or pushed, by human or animal power
US5540296A · kind A · utility
34Cited by
11References
24Claims
0Family size
Inventor
Key dates
| Filing date | Mar 10, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Mar 10, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An auxiliary drive for a travelling device has a boosting effect when the driving power requirements are high and has a regenerative effect when the driving power requirements are low or negative. The auxiliary drive is provided with a measurement device for the primary driving power and with a control that increases or diminishes the generated torque by reducing or increasing the regenerative braking torque when a predetermined primary driving force is exceeded or not reached, respectively. The use of regenerative braking to charge the batteries allows small and relatively light batteries to be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.