Erroneous sudden acceleration neutralization system and method

• US 20070142169A1
• Filed: 12/16/2005
• Published: 06/21/2007
• Est. Priority Date: 12/16/2005
• Status: Abandoned Application

• Current Assignee: R&d Machma Inc.
• Original Assignee: R&d Machma Inc.
• Inventors: Marcil, Jean-Pierre
• Application Number:
  US11/304,748
• Publication Number:
  US 20070142169A1
• Time in Patent Office: Days
• US Class Current: 477/107
• CPC Class Codes: B60K 28/06 responsive to incapacity of driver
• CPC Class Codes: B60Q 1/535 to prevent rear-end collisions, e.g. by indicating safety distance at the rear of the vehicle
• CPC Class Codes: B60Q 5/006 indicating risk of collision between vehicles or with pedestrians
• CPC Class Codes: B60Q 9/008 for anti-collision purposes
• CPC Class Codes: B60W 2040/0863 due to erroneous selection or response of the driver
• CPC Class Codes: B60W 2510/1005 Transmission ratio engaged
• CPC Class Codes: B60W 2540/10 Accelerator pedal position
• CPC Class Codes: B60W 2540/12 Brake pedal position
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention

Abstract

A system for controlling an acceleration of a vehicle, including a control pressure evaluator evaluating a pressure applied on an acceleration control and producing pressure data, at least one sensor producing drive data corresponding to driving conditions of the vehicle, a driver input analyzer characterizing a driver input based on the drive and pressure data and producing a corresponding driver input condition signal, a response evaluator determining a required response based on the driver input condition signal and producing a corresponding response signal, and a controller actuating at least one warning signal and/or reducing a power output of an engine of the vehicle based on the response signal.

Claims

1. A system for controlling an acceleration of a vehicle, the system comprising:

a control pressure evaluator associated with an acceleration control of the vehicle so as to evaluate a pressure applied on the acceleration control of the vehicle and produce corresponding pressure data;

at least one sensor producing drive data corresponding to driving conditions of the vehicle;

a driver input analyzer associated with the control pressure evaluator and the at least one sensor, the driver input analyzer characterizing a driver input of the vehicle based on the drive data and the pressure data and producing a corresponding driver input condition signal;

a response evaluator connected to the driver input analyzer and determining a required response based on the driver input condition signal and producing a corresponding response signal; and

a controller connected to the response evaluator and actuating at least one warning signal and/or reducing a power output of an engine of the vehicle based on the response signal.

2. The system according to claim 1, wherein the driver input condition signal is one of a confused signal and a normal signal, and the response evaluator produces the response signal upon reception of the confused signal.

3. The '"'"'system according to claim 2, wherein the driver input analyzer produces the confused signal when the pressure data is above a given pressure threshold and the drive data indicates that the vehicle is in movement.

4. The system according to claim 2, wherein the driver input analyzer produces the confused signal when the drive data indicates simultaneous actuation of the acceleration control and of a brake control of the vehicle while the vehicle is moving at a speed above a given speed threshold.

5. The system according to claim 1, wherein the response evaluator determines the required response also based on response history data of the system for a given time period.

6. The system according to claim 5, wherein the response evaluator includes a database for storing the response history data.

7. The system according to claim 5, wherein a first occurrence of the response signal during the given time period instructs the controller to actuate the at least one warning signal, and a later occurrence of the response signal during the given time period instructs the controller to reduce the power output of the engine.

8. The system according to claim 1, wherein the at least one sensor includes a brake sensor evaluating a position of a brake control of the vehicle, a speed sensor measuring a speed of the vehicle, and a transmission sensor determining a position of a transmission of the vehicle.

9. The system according to claim 1, wherein the at least one warning signal includes at least one of a horn of the vehicle, lights within the vehicle, a warning sound producing device, headlights of the vehicle, and a vibration mechanism vibrating the acceleration control.

10. The system according to claim 1, wherein the controller sends an actuation signal based on the response signal to an electronic control module of the vehicle, the actuation signal containing instructions to actuate the at least one warning signal and/or reduce the power output of the engine.

11. The system according to claim 10, wherein the actuation signal also contains instructions to register a fault code in a memory of the electronic control module.

12. The system according to claim 1, wherein the control pressure evaluator is a pressure sensitive switch which is activated when the acceleration control of the vehicle is depressed with a pressure at least equal to a pressure threshold.

13. A method for neutralizing an erroneous sudden acceleration in a vehicle, the method comprising the steps of:

a) evaluating a pressure applied on an acceleration control of the vehicle;

b) characterizing driving conditions of the vehicle;

c) recognizing one of a presence and absence of the erroneous sudden acceleration, based on the pressure on the acceleration control and driving conditions of the vehicle; and

d) actuating at least one warning signal and/or reducing a power output of an engine of the vehicle when the erroneous sudden acceleration is present.

14. The method according to claim 13, wherein step c) further comprises storing response history data on the presence of the erroneous sudden acceleration.

15. The method according to claim 14, wherein step c) further comprises considering the response history data in actuating at least one warning signal and/or reducing a power output of an engine of the vehicle when the erroneous sudden acceleration is present.

16. The method according to claim 13, wherein in step b), the driving conditions of the vehicle are characterized by at least one of evaluating a position of a brake control of the vehicle, evaluating a position of the acceleration control of the vehicle, measuring a speed of the vehicle, and determining a position of a transmission of the vehicle.

17. The method according to claim 13, wherein actuating the at least one warning signal includes at least one of actuating a horn of the vehicle, turning lights on within the vehicle, producing a warning sound, blinking headlights of the vehicle, and vibrating the acceleration control.

18. The method according to claim 13, wherein in step d) the at least one warning signal is actuated by sending an actuation signal to an electronic control module of the vehicle, which in turn actuates the at least one warning signal.

19. A method for neutralizing an erroneous sudden acceleration of a vehicle, the method comprising the steps of:

a) evaluating a position of acceleration and brake controls of the vehicle;

b) measuring a speed of the vehicle;

c) recognizing one of a presence and an absence of the erroneous sudden acceleration, based on the position of the acceleration and brake controls and on the speed of the vehicle;

d) actuating at least one warning signal and/or reducing a power output of an engine of the vehicle when the erroneous sudden acceleration is present.