Method of determining and using an acceleration correction in an integrated acceleration based electronic speed control system for vehicles
US4849892A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1987 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Mar 6, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2720/106
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of determining and using an acceleration correction in a acceleration based electronic speed control system for automobiles, the method being utilized by a microcontroller. An error correction pulse is selected by integrating (or summing) the differences between the desired acceleration and the actual vehicle acceleration. The integral is compared to a trigger window. The throttle position is controlled based on the value of the integral as compared to the window. This is keyed in providing smooth control. The integration action serves to filter transient acceleration errors to dampen throttle response to prevent throttle correction at a faster rate than the vehicle can respond thereby reducing over and under shoot of the throttle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.