Fault detection in a multi-high voltage bus system
US9931949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2016 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Aug 14, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/7072
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle bus system includes a controller programmed to, after issuing a command to close first and second contactors, wherein the first and second contactors are arranged to share a first terminal of a battery, the first contactor is configured to power a first load when closed, and the second contactor is configured to power a second load when closed, initiate pre-charge of a second terminal of the battery in response to respective first and second voltages across the first and second contactors exceeding corresponding first and second closed-state voltage thresholds, and generate a notification and preclude initiation of the pre-charge in response to one of the first and second voltages being less than the corresponding first and second closed-state voltage thresholds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.