Modification of pedal progression with acceleration feedback using electronic throttle control
US6442472B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Feb 28, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/501
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for controlling the throttle position of a vehicle by modifying the pedal to throttle progression typically used by the electronic throttle controller to a throttle progression based on the driver's target acceleration and vehicle speed. Target acceleration is determined using a lookup table with inputs current vehicle speed and accelerator pedal displacement. Another lookup determines the end vehicle speed the driver will attain if the pedal displacement does not change. A signal indicating the new throttle position is the output of a controller whose input is the difference between end vehicle speed and current vehicle speed and whose gain is based on the target acceleration. Changes in throttle position can be limited based on an arbitration incorporating information received from other vehicle control systems. Preferably, control of the throttle will revert to the idle control system whenever the accelerator pedal is not displaced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.