Method for controlling a hybrid drive which drives a vehicle
US5327992A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1993 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Apr 28, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/945
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for controlling a hybrid drive consisting of an internal combustion engine and at least one electric motor which can be driven via an electrical energy source, in which the electric motor can be operated as a generator when required. In order to reduce the fuel consumption and the emission of noxious substances of the internal combustion engine in those operating ranges in which the torque to be output by the internal combustion engine to overcome the instantaneous tractive resistances lies below a torque corresponding to ideal operation of the internal combustion engine with respect to efficiency and/or exhaust gas behavior, the internal combustion engine is operated essentially with the torque corresponding to ideal operation. The differential torque between the torque corresponding to ideal operation and the torque to be output by the internal combustion engine to overcome the instantaneous tractive resistances is used to drive the electric motor which is switched as a generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.