Power supply for motor usable with an electric vehicle
US5412293A · kind A · utility
87Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1994 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | May 2, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A large-capacity capacitor (C1, C2) is connected in series and/or parallel with a battery (11). A voltage sensor (9, 10) is provided to the battery and/or the large-capacity capacitor to detect their terminal voltages. Input and output currents are limited between at least one of a motor driving circuit and the large-capacity capacitor and the battery on the basis of the detection signals from the voltage sensor. When the terminal voltage of the large-capacity capacitor is equal to or higher than a predetermined value, a current flowing from the motor driving circuit to the large-capacity capacitor is limited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.