Method for driver input gaging

• US 20070250238A1
• Filed: 08/10/2006
• Published: 10/25/2007
• Est. Priority Date: 08/12/2005
• Status: Active Grant

• Current Assignee: Continental Automotive GmbH (Continental AG)
• Original Assignee: Continental Automotive GmbH (Continental AG)
• Inventors: Feder, Johannes, Castillo, Fernando
• Granted Patent: US 7,684,920 B2
• Time in Patent Office: Days
• US Class Current: 701/51
• 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 gaging 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 gaging is carried out below the actually recallable value of the parameter relevant for the drive system. A static gaging 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 gaging 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 gaging in motor vehicles, in which in order to determine the driver input, the position of a moveable control element is determined, 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, wherein a change from a static into a dynamic driver input gaging is carried out below the actually recallable value of the parameter relevant for the drive system of the motor vehicle, wherein a static gaging being carried out in a lower value range of this parameter 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 when a threshold in an upper value range is exceeded, a dynamic gaging is carried out 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.

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 during the dynamic gaging, the maximum displacement of the moveable control element is assigned to the respective 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, with which the change from static to dynamic driver input gaging is carried out, 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, with which the change from static to dynamic gaging 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.

7. A method according to claim 4, wherein the threshold, with which the change from static to dynamic gaging is carried out, 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 the engine speed, and/or the selected gear and/or the drive status and/or active dry running and/or the motor vehicle speed and/or the engine temperature and/or the accelerator position and/or different restrictions on the output, the engine speed, the fuel consumption and/or the torque and/or the total weight of the motor vehicle and/or the road surface incline and/or the wind speed.

8. A method according to claim 1, wherein the gaging is carried out in a linear fashion at least in the range of the static gaging.

9. A method according to claim 1, wherein the gaging is carried out in a linear fashion at least in the range of the dynamic gaging.

10. A method according to claim 1, wherein in the range of the dynamic gaging, the gaging 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 gaging 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 the engine speed and/or the selected gear and/or the drive status and/or active dry running operation and/or the motor vehicle speed and/or the engine temperature and/or the accelerator position and/or different restrictions on the output, the engine speed, the fuel consumption and/or the torque and/or the total weight of the motor vehicle and/or the road surface incline and/or the wind speed.

12. A method according to claim 1, wherein the transition from the static gaging on a theoretical fixed value of the parameter relevant for the drive system of the motor vehicle to the dynamic gaging 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 a torque, an engine speed, an acceleration, a force and/or an output is included in the gaging for the parameter relevant for the drive system of the motor vehicle.

14. A method according to claim 1, wherein the position of a moveable control element is determined in order to determine the driver input, said control element being moveable from a rest position into a maximum displacement, with a theoretical maximum value of the torque being determined and the value of an actually recallable torque being determined, with a change from a static to a dynamic driver input gaging being carried out below the actual recallable torque, with a static gaging 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 gaging 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 gaging 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 gaging 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 gaging 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 during the dynamic gaging, the maximum displacement of the moveable control element is assigned to the respective 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 gaging 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.