Electric vehicle and method and system for controlling high-voltage system circuit thereof
US9873332B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2015 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Mar 9, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2240/549
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for controlling a high-voltage system circuit of an electric vehicle comprises: judging whether the circuit is in a closed-circuit state after receiving an instruction of opening the circuit; judging whether the positive contactor is in an on-state and whether an instruction of turning on the positive contactor is valid if the circuit is in a closed-circuit state; sending an instruction of turning off the positive contactor if the positive contactor is in an on-state and the instruction of turning on the positive contactor is valid; sending an instruction of turning off the negative contactor; judging whether the pre-charging contactor is in an on-state and whether an instruction of turning on the pre-charging contactor is valid; sending an instruction of turning off the pre-charging contactor if the pre-charging contactor is in an on-state and the instruction of turning on the pre-charging contactor is valid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.