Control strategy for plug-in hybrid electric vehicle
US10543830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2016 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Aug 27, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of controlling a plug-in hybrid electric vehicle including an electric propulsion system, an engine, and a catalytic converter associated with the engine, the method comprising: monitoring a state of charge of a battery of the vehicle when in a charge depletion mode; determining a rate of depletion of the state of charge; estimating from the rate of depletion a duration of a depletion period representing the time remaining until a minimum state of charge of the battery will be reached; determining a duration of a warming period of the catalytic converter; comparing the duration of the depletion period and the duration of the warming period; and activating the engine if the duration of the depletion period is less than or equal to the duration of the warming period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.