Hybrid electric vehicle and method of controlling the same
US11794720B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 2, 2020 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Sep 6, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hybrid electric vehicle capable of starting an engine in the event of failure of a DC-DC converter and a method of controlling the hybrid electric vehicle are provided. The hybrid electric vehicle includes a driving motor, an engine, and a first relay that starts a starter. A second relay is disposed between a first power line, connected the starter and a first battery, and second power line, connects a DC-DC converter that converts the power of a second battery and an electric load. A controller selectively adjusts the states of the first relay and the second relay. Upon determining starting of the engine and detecting failure of the DC-DC converter, the controller maintains the on state of the second relay and turns on the first relay to perform cranking of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.