Device and method for determining target value of controllable variable associated with vehicle running state
US5021958A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1989 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Nov 16, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/90
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Device and apparatus for determining a target value of a controllable variable such as a drive torque associated with a running state of a motor vehicle, so that the variable is controlled so as to coincide with the determined target value. Initially, a basic value used as a basis for determining the target value is determined depending upon at least a currently required output of the vehicle engine which is represented by an accelerator pedal operating amount, for example. Then, control rules for compensating the basic value are defined based on at least one parameter indicative of a running condition of the vehicle, such as a vehicle weight and a road gradient. Finally, a compensation factor for compensating the basic value to obtain the target value is determined based on the control rules according to a fuzzy set theory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.