Engine accessory torque and engine deceleration rate determination method/system
US5582069A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 1994 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | May 16, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19251
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An adaptive control system/method for an at least partially automated vehicular mechanical transmission system (10) is provided for determining the value of a control parameter (T.sub.ACCES) indicative of accessory torque when the vehicle is in motion and the value of a control parameter (dES/dt rate) indicative of engine deceleration rate when the vehicle is not in motion. A relationship (dES/dt rate=A+B * T.sub.ACCES) between engine deceleration rate and accessory torque is determined and allows derivation of one parameter from the other parameter during vehicle operating conditions wherein the other parameter may be directly determined from sensed inputs (T.sub.EG, T.sub.BEF, ES).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.