Vehicle drivetrain control system
US6634450B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1996 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Sep 5, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2400/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
During occurrence of slippage at drive wheels, a traction controller calculates a feedforward term of a desired drive engine torque as a sum of an accelerating resistance torque and a running resistance torque determined immediately before the occurrence of slippage. The traction controller calculates a feedback term of the desired drive torque as a function of a slip error from a desired value and determines a target engine torque in response to the feedforward and feedback terms and a speed ratio established in a transmission. The traction controller alters an engine torque modifier in the form of a throttle arranged upstream of an accelerator controlled throttle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.