Output control system for series hybrid vehicle
US6326702A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/903
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for controlling a series hybrid vehicle, having an internal combustion engine whose output is regulated by a throttle valve, a generator-motor connected to the engine to be rotated by the engine, an electric energy storage means connected to the first generator-motor to be charged by the first generator-motor, and a second generator-motor connected to at least one of the first generator-motor and the electric energy storage means to input an output of at least one of the first generator-motor and the electric energy storage means to drive wheels of the vehicle to propel the vehicle. In the system, a desired engine speed is determined to minimize fuel consumption, and a desired power generation amount of the first generator-motor is determined based on a determined desired power generation base value and the desired engine speed. Then, the throttle opening is controlled to achieve the desired power generation amount, thereby optimizing fuel consumption, while rapidly converging the engine speed on the desired value, without stalling the internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.