IP Library › Granted Patent US 6,915,779
Granted Patent B2
US 6,915,779 · App. 10/601,613 · Granted Jul 12, 2005

Pedal position rate-based electronic throttle progression

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Quick Facts
Patent No.
US 6,915,779
App. No.
10/601,613
Filed
Jun 23, 2003
Granted
Jul 12, 2005
Kind
B2
Examiner
KWON, JOHN
Art Unit
3747
USPC
123/361
Abstract

An engine control system in a vehicle including an internal combustion engine, an electronic throttle controlling air flow to the internal combustion engine, a controller controlling the position of the electronic throttle, an accelerator pedal having an accelerator pedal sensor that generates a signal to the controller, and where the controller computes a rate of change for the accelerator pedal and actuates the electronic throttle to a desired position based upon the rate of change for the accelerator pedal.

Claims (26)

1. An engine control system in a vehicle comprising:

an internal combustion engine;

an electronic throttle controlling air flow to said internal combustion engine;

a controller controlling the position of said electronic throttle;

an accelerator pedal having an accelerator pedal sensor which generates a signal to said controller;

wherein said controller computes a rate of change for said accelerator pedal and actuates said electronic throttle to a desired position based upon said rate of change for said accelerator pedal; and

wherein said predicted rate of change for said accelerator pedal is based upon at least a spring force of said accelerator pedal.

2. The engine control system of claim 1 wherein said rate of change for said accelerator pedal comprises a rate of position change.

3. The engine control system of claim 1 wherein rate of change for said accelerator pedal comprises a rate of force change.

4. The engine control system of claim 1 wherein said internal combustion engine is a gasoline engine.

5. The engine control system of claim 1 wherein said accelerator pedal sensor is a linear encoder.

6. The engine control system of claim 1 wherein said accelerator pedal sensor is a potentiometer.

7. The engine control system of claim 1 wherein said accelerator pedal sensor is a strain gauge.

8. An engine control system in a vehicle comprising:

an internal combustion engine;

a throttle controlling air flow to said internal combustion engine;

a controller controlling the position of said electronic throttle;

an accelerator pedal having an accelerator pedal sensor which generates a signal to said controller;

wherein said controller predicts a rate of change for said accelerator pedal and actuates said electronic throttle to a desired position based upon said predicted rate of change for said accelerator pedal; and

wherein said predicted rate of change for said accelerator pedal is based upon at least a spring force of said accelerator pedal.

9. The engine control system claim 8 wherein said rate of change for said accelerator pedal comprises a rate of position change.

10. The engine control system of claim 8 wherein said rate of change for said accelerator pedal comprises a rate of force change.

11. The engine control system of claim 8 wherein said internal combustion engine is a gasoline engine.

12. The engine control system of claim 8 wherein said accelerator pedal sensor is a linear encoder.

13. The engine control system of claim 8 wherein said accelerator pedal sensor is a potentiometer.

14. The engine control system of claim 8 wherein said predicted rate of change is bated on the mass of said accelerator pedal.