Engine idle operation control method and system for heating of hybrid electric vehicle
US10220828B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 30, 2015 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Jul 1, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/93
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An engine idle operation control method and system are provided to improve the fuel efficiency of a vehicle through maintenance of efficient battery SOC and charge control during the engine-on for heating of a vehicle. The method includes receiving an engine-on request for heating of the vehicle and determining a road condition. A target charge power is determined and set as a value corresponding to the road condition and battery state information. A basic idle RPM set as a value corresponding to the road condition, the target charge power, and the outdoor temperature is determined. A compensation RPM and a target idle RPM are determined by compensating for the basic idle RPM by the compensation RPM to adjust the engine idle driving into the determined target idle RPM during the heating of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.