Electronic throttle control apparatus
US6766785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2002 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Jan 18, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/2048
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electronic throttle control apparatus is provided with an electronic throttle (1) including a throttle valve (4) which is opened and closed by a motor (5), and a microcomputer (11) which controls the motor (5). The microcomputer (11) calculates a deviation between a target opening degree which is set by detection of an accelerator sensor (5) and an actual opening degree which is detected by a throttle sensor (6) to calculate a motor control amount in accordance with the deviation and a control gain in correspondence to the deviation. The microcomputer 11 sets a control gain which becomes smaller as the deviation becomes larger, and limits the control gain by the previous control gain at a time when the control gain is larger than the previous control gain. The microcomputer (11) cancels the limit of the control gain when the calculated actual opening degree change is reduced from a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.