Problem detection apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 14, 2020
Grant Date -
Jan 4, 2018
app pub date -
Apr 20, 2017
filing date -
Jul 4, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A problem detection apparatus includes a relay, a measurement circuit and a controller. The relay is provided between a power supply and an external circuit, both of which are in a high voltage system. The relay is configured to switch an electrical connection state of the power supply to the external circuit between a closed state and an open state. The measurement circuit measures a voltage of a circuit in the high voltage system. The measurement circuit is in the high voltage system and connected between the relay and the external circuit. In a case where a command to switch the relay to the open state has been output, the controller detects, based on the voltage measured by the measurement circuit, whether or not the relay has a short circuit. The controller is in a low voltage system having a lower voltage than a voltage of the high voltage system.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- H01M Class
- 6607 Applications Filed
- 4942 Patents Issued To-Date
- 74.80 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- H01M Class
- 57.30 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 14, 2027 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 14, 2031 |
