Power-feed control apparatus provided in a vehicle
US6320275A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Jun 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power-feed control apparatus for a vehicle in which electrical loads are arranged in the vehicle includes a power source provided in a vehicle; at least one power semiconductor element, the power semiconductors controlling power-feed to the electrical load; a control unit for controlling the power semiconductor element; an anomaly detection circuit for monitoring operations of the power semiconductor element and determining whether or not an anomaly is occurring in a circuit including the power semiconductor element and the electrical load; and a switching circuit for switching a threshold level between a level for an anomaly detection in a starting period of the load and that in a steady state of the load connected to the power semiconductor element; wherein if an anomaly is detected in the circuit by the anomaly detection circuit, the control unit turns off the power semiconductor so as to interrupt power-feed to the electrical load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.