Method for driver input gauging

• US 7,684,920 B2
• Filed: 08/10/2006
• Issued: 03/23/2010
• Est. Priority Date: 08/12/2005
• Status: Expired due to Fees

• Current Assignee: Continental Automotive GmbH (Continental AG)
• Original Assignee: Continental Automotive GmbH (Continental AG)
• Inventors: Castillo, Fernando Guillen, Feder, Johannes
• Primary Examiner(s): To; Tuan C
• Application Number:
  US11/463,772
• Publication Number:
  US 20070250238A1
• Time in Patent Office: 1,321 Days
• Field of Search: 701/51, 701/57, 701/70, 701/54, 477/107, 477/83, 123/320, 123/370, 123/376, 123/406.25, 123/406.36, 123/406.46, 123/406.5, 340/441, 738/661
• US Class Current: 701/54
• 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
• CPC Class Codes: F02D 2200/501 Vehicle speed
• CPC Class Codes: F02D 2250/18 Control of the engine output torque
• CPC Class Codes: F02D 41/021 Introducing corrections for particular conditions exterior to the engine conjoint control of vehicle sub-units for propelling the vehicle B60W30/18
• CPC Class Codes: F02D 41/0225 in relation with the gear ratio or shift lever position

Abstract

In a method for parameter-related driver input gauging in motor vehicles, with the position of a moveable control element being determined, a theoretical maximum value of at least a parameter relevant for the drive system is defined and an actually recallable value of this parameter is determined. A change from a static to a dynamic driver input gauging is carried out below the actually recallable value of the parameter relevant for the drive system. A static gauging is carried out in a lower value range of this parameter such that the maximum displacement of the movable control element is assigned to the theoretical maximum value of the parameter, and if a threshold of the driver input is exceeded in an upper value range, a dynamic gauging is carried out such that the maximum displacement of the moveable control element is assigned to an actually recallable value of the parameter.

Claims

1. A method for parameter-related driver input gauging in motor vehicles, comprising the steps of:

in order to determine the driver input, determining the position of a moveable control element, which can be moved from a rest position into a maximum displacement,

determining a theoretical maximum value of at least one parameter relevant for the drive system of the motor vehicle is determined and an maximum actually recallable value of this parameter is determined,

if the determined position is below a threshold, assigning said parameter according to a first function in which the maximum displacement corresponds to the theoretical maximum value, and

if the determined position is greater or equal the threshold, assigning said parameter according to a second function in which the maximum displacement of the moveable control element corresponds to the maximum actually recallable value.

2. A method according to claim 1, wherein the position of an accelerator is determined as a position of the moveable control element.

3. A method according to claim 1, wherein in case of the maximum displacement of the moveable control element, the parameter is dynamically assigned to a variable maximum actually recallable value of the parameter relevant for the drive system of the vehicle.

4. A method according to claim 1, wherein the threshold is derived from the maximum actually recallable value of the parameter relevant for the drive system of the motor vehicle.

5. A method according to claim 1, wherein the maximum actually recallable value of the parameter relevant for the drive system of the motor vehicle is cyclically updated.

6. A method according to claim 4, wherein the threshold is smaller by a fixed factor than the respective maximum actually recallable value of the parameter relevant for the drive system of the motor vehicle.

7. A method according to claim 4, wherein the threshold is smaller by a factor than the respective maximum actually recallable value of the parameter relevant for the drive system of the motor vehicle, with measurement variables being included in the determination of the factor, said measurement variables depending on at least one of an engine speed, a selected gear, a drive status, an active dry running, a motor vehicle speed, an engine temperature, an accelerator position, a different restrictions on one of the output, the engine speed, a fuel consumption and a torque, a total weight of the motor vehicle, a road surface incline, and a wind speed.

8. A method according to claim 1, wherein the gauging is carried out in a linear fashion at least in a range below the threshold.

9. A method according to claim 1, wherein the gauging is carried out in a linear fashion at least in a range above the threshold.

10. A method according to claim 1, wherein in a range above the threshold, the gauging is carried out according to a function stored as a data set or a stored curve family.

11. A method according to claim 10, wherein the gauging is carried out via a stored curve family, with measurement variables being included in the selection of the respective curve family, said measurement variables depending on at least one of:

the engine speed, the selected gear, the drive status, active dry running operation, the motor vehicle speed, the engine temperature, the accelerator position, different restrictions on one of the output, the engine speed, the fuel consumption and the torque, the total weight of the motor vehicle, the road surface incline, and the wind speed.

12. A method according to claim 1, wherein the transition from a static gauging on a theoretical fixed value of the parameter relevant for the drive system of the motor vehicle to a dynamic gauging on a current recallable value of the parameter relevant for the drive system of the motor vehicle is carried out such that the required value of the parameter relevant for the drive system of the motor vehicle in the form of a constant function depends on the respective driver input.

13. A method according to claim 1, wherein at least one of a torque, an engine speed, an acceleration, a force and an output is included in the gauging for the parameter relevant for the drive system of the motor vehicle.

14. A method according to claim 1, wherein a change from a static to a dynamic driver input gauging is carried out below the actual recallable torque, wherein a static gauging being carried out in a lower torque range such that the maximum displacement of the moveable control element is assigned to the theoretical maximum value of the torque and if a threshold of the required torque is exceeded in an upper torque range, a dynamic gauging is carried out such that the maximum displacement of the movable control element is assigned to an actually recallable torque.

15. A method for parameter-related driver input gauging in motor vehicles, comprising the steps of:

determining the position of a moveable control element, which can be moved from a rest position into a maximum displacement, wherein a theoretical maximum value of at least one parameter relevant for the drive system of the motor vehicle is determined and an actually recallable value of this parameter is determined,

if the determined at least one parameter is below a threshold, operating the motor vehicle in a static gauging in such a way that the maximum displacement of the moveable control element is assigned to the theoretical maximum value of the parameter relevant for the drive system of the motor vehicle, and

if the determined at least one parameter is greater or equal the threshold, operating the motor vehicle in a dynamic gauging such that the maximum displacement of the moveable control element is assigned to an actually recallable value of the parameter relevant for the drive system of the motor vehicle.

16. A method according to claim 15, wherein the position of an accelerator is determined as a position of the moveable control element.

17. A method according to claim 15, wherein in case of the maximum displacement of the moveable control element, the parameter is dynamically assigned to a variable maximum actually recallable value of the parameter relevant for the drive system of the vehicle.

18. A method according to claim 15, wherein the threshold is derived from the maximum actually recallable value of the parameter relevant for the drive system of the motor vehicle.

19. A method according to claim 15, wherein the maximum actually recallable value of the parameter relevant for the drive system of the motor vehicle is cyclically updated.

20. A method according to claim 19, wherein the threshold, with which the change from static to dynamic gauging is carried out, is smaller by a fixed factor than the respective maximum actually recallable value of the parameter relevant for the drive system of the motor vehicle.