Two-pedal vehicular acceleration control system

• US 6,480,779 B2
• Filed: 05/23/2001
• Issued: 11/12/2002
• Est. Priority Date: 05/24/2000
• Status: Expired due to Term

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Volvo Technological Development Corporation
• Inventors: Mardberg, Bjorn
• Primary Examiner(s): ARTHUR JEANGLAUDE, GERTRUDE
• Application Number:
  US09/681,707
• Publication Number:
  US 20010047235A1
• Time in Patent Office: 538 Days
• Field of Search: 701/53, 701/68, 701/69, 701/70, 701/78, 701/79, 701/80, 701/81, 701/83, 701/22, 180/170
• US Class Current: 701/70
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/18 including control of braking systems
• CPC Class Codes: B60W 2540/10 Accelerator pedal position
• CPC Class Codes: B60W 2540/12 Brake pedal position
• CPC Class Codes: B60W 2720/106 Longitudinal acceleration
• CPC Class Codes: B60W 30/18 Propelling the vehicle
• CPC Class Codes: F02D 11/105 characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque

Abstract

System and method for controlling a vehicle that includes sensing driver control information from each of at least two foot actuated pedals of a vehicle. The sensed information is electronically analyzed and a driver desired vehicle acceleration is determined from the sensed information. An acceleration affecting system of the vehicle is then controlled to urge the vehicle toward the driver desired vehicle acceleration. The sensed driver vehicle control information may be translated into an electronic format suitable for being electronically analyzed, but in most instances will already be in such a format and no translation is necessary. Both positive and negative determinations of driver desired vehicle acceleration are accommodated which generally correspond to desired faster travel and desired slower travel, respectively, when the vehicle is in forward motion. An electronic control command is computed and utilized to control the acceleration affecting Environmentally imposed effects on the vehicle are considered in the computation of the electronic control command that is utilized in the step of controlling the acceleration affecting The acceleration affecting system is configured to include a power supplying sub-system and a braking sub-system, the power supplying sub-system and the braking sub-system establishing opposed acceleration affecting sub-systems.

Claims

1. A method for controlling a vehicle, said method comprising:

sensing driver control information from each of at least two foot actuated pedals of a vehicle;

electronically analyzing said sensed information and determining a driver desired vehicle acceleration from said sensed information;

controlling an acceleration affecting system of said vehicle to urge said vehicle toward said driver desired vehicle acceleration; and

configuring said acceleration affecting system to include a power supplying sub-system and a braking sub-system, said power supplying sub-system and said braking sub-system establishing opposed acceleration affecting sub-systems.

2. The method as recited in claim 1, further comprising:

optimizing vehicle efficiency by avoiding simultaneous actuation of said opposed acceleration affecting sub-systems.

3. The method as recited in claim 1, further comprising:

accommodating positive and negative determinations of driver desired vehicle acceleration corresponding to driver desired faster travel and driver desired slower travel, respectively, during forward travel.

4. The method as recited in claim 1, further comprising:

actuating said power supplying sub-system to affect faster travel and actuating said braking sub-system to affect slower travel.

5. The method as recited in claim 1, further comprising:

translating the sensed driver vehicle control information into an electronic format suitable for being electronically analyzed.

6. The method as recited in claim 1, further comprising:

operating said power supplying sub-system using an electronically controlled fuel injection system.

7. The method as recited in claim 1, further comprising:

computing an electronic control command utilized to control said acceleration affecting system.

8. The method as recited in claim 7, further comprising:

considering environmental imposed effects on said vehicle in said computation of said electronic control command utilized in said step of controlling said acceleration affecting system.

9. The method as recited in claim 1, further comprising:

providing a rightwardly positioned foot pedal and a leftwardly positioned foot pedal in front of a driver'"'"'s seat in said vehicle; and

adapting said rightwardly and leftwardly positioned foot pedals to have similar physical characteristics and feel to a driver.

10. The method as recited in claim 9, further comprising:

establishing a distance between said rightwardly and leftwardly positioned foot pedals that approximates the average distance between drivers'"'"' feet when at rest and in a sitting.

11. The method as recited in claim 9, further comprising:

adapting at least one of said foot pedals to be laterally adjustable for varying a distance between said rightwardly and leftwardly positioned foot pedals for accommodating different drivers.

12. The method as recited in claim 9, further comprising:

adapting a least one of said foot pedals to be continuously laterally adjustable across an adjustment range for varying a distance between said rightwardly and leftwardly positioned foot pedals for accommodating different drivers.

13. The method as recited in claim 9, further comprising:

arranging each of said rightwardly and leftwardly positioned foot pedals so that proper placement of a driver'"'"'s right foot and a driver'"'"'s left foot, respectively upon said foot pedals, results in a heel of each foot resting upon a floor area below the corresponding foot pedal and a ball of each foot engaged upon the corresponding and overhanging foot pedal.

14. The method as recited in claim 9, further comprising:

configuring said rightwardly positioned foot pedal so that driver actuation of said rightwardly positioned foot pedal predominately influences a power supplying sub-system of said acceleration affecting system for urging faster travel.

15. The method as recited in claim 9, further comprising:

configuring said leftwardly positioned foot pedal so that driver actuation of said leftwardly positioned foot pedal predominately controls a braking sub-system of said acceleration affecting system for urging slower travel.