Internal combustion engine starting drive control system for hybrid vehicle
US6077186A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Dec 7, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/946
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A drive control system for starting an internal combustion engine of a hybrid vehicle running while transmitting the output of an electric motor to a power transmission line for the run, by coupling the internal combustion engine to the power transmission line. The drive control system comprises: a start demand deciding unit for deciding a demand for the start of the internal combustion engine; and an assist setting unit for raising the output torque of the electric motor, when the demand for starting the internal combustion engine is decided by the start demand deciding unit, by a torque corresponding to either a motoring torque necessary for rotating the internal combustion engine or a summed torque of the motoring torque and an inertia torque according to the changing rate of the revolution speed of the internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.