Method and system for shifting a gear of a hybrid electric vehicle
US9701303B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2015 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Jun 18, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/945
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and a system for shifting a gear of a hybrid electric vehicle are provided. The method includes following steps. A state of a battery is determined according to a remaining capacity of the battery, a required torque and a state of the hybrid electric vehicle, in which the state of the battery comprises a discharging state or a charging state. A plurality of optional target gears, a torque and a rotating speed of an engine corresponding to each optional target gear are determined according to the state of the battery and a speed of the hybrid electric vehicle. An optional target gear with a minimum fuel consumption of the engine is selected as a target gear from the plurality of optional target gears. It is determined whether to perform a gear shift by comparing with a current gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.