User interface unit for a vehicle

• US 6,260,859 B1
• Filed: 01/18/2000
• Issued: 07/17/2001
• Est. Priority Date: 02/13/1999
• Status: Expired due to Fees

• Current Assignee: Land Rover Group Limited (TATA Motors Limited)
• Original Assignee: Rover Group Limited (Techtronic 2000 Plc)
• Inventors: Smith, David Philip, Dixon, Christopher David
• Primary Examiner(s): Dickson, Paul N.
• Application Number:
  US09/487,380
• Time in Patent Office: 546 Days
• Field of Search: 280/5.5, 280/5.503, 280/5.514, 280/5.515, 280/5.519, 280/6.151, 280/6.153, 280/6.157, 701/36, 701/37
• US Class Current: 280/5.514
• CPC Class Codes: B60G 17/005 Suspension locking arrangements for retractable wheels B62D61/12
• CPC Class Codes: B60G 17/0185 for failure detection
• CPC Class Codes: B60G 17/0195 characterised by the regulation being combined with other vehicle control systems conjoint control of vehicle sub-units including control of suspension systems B60W10/22
• CPC Class Codes: B60G 2300/07 Off-road vehicles
• CPC Class Codes: B60G 2600/02 Retarders, delaying means, dead zones, threshold values, cut-off frequency, timer interruption
• CPC Class Codes: B60G 2600/08 Failure or malfunction detecting means

Abstract

A vehicle (10) includes a suspension system controlled by a suspension controller (12). The system further comprises a user interface unit (18) which includes a series of symbols (26, 28, 30) which remain secret until illuminated and each of which is associated with a particular operating mode of the suspension system. The symbols are illuminated only when their associated mode is available to a user for selection. The operating modes are selected by a series of push button switches (20, 22, 24) which are associated with the symbols (26, 28, 30) and are disabled unless their associated symbol is illuminated.

Claims

1. An interface for a control system of a vehicle, the control system having a plurality of operating modes, the interface comprising:

an operating mode selection means for manual selection of at least one of the plurality of operating modes;

a display symbol dedicated to each one of the plurality of operating modes; and

control means arranged to determine which of the plurality of operating modes are available for actuation and which are unavailable for actuation, and to illuminate the display symbols corresponding to the operating modes available for actuation and cease illumination of the display symbols corresponding to the operating modes which are unavailable for actuation;

wherein the vehicle has various operation points which determine the availability of each of the plurality of operating modes, and the control means monitors the various operation points, during operation of the control system, and illuminates the display symbols corresponding to each of the plurality of operating modes when the operating mode becomes available for actuation, and ceases illumination of the display symbol corresponding to an operating mode which becomes unavailable for actuation.

2. The interface according to claim 1, wherein each symbol is substantially unviewable until illuminated.

3. The interface according to claim 1, wherein the operating mode selection means comprises a plurality of switch means each of which is associated with a respective one of the display symbols and is operable for selection of the operating mode associated with that display symbol.

4. The interface according to claim 3, wherein each of the switch means is capable of illumination independently of the associated display symbol, and, when one of the operating modes is selected, causing the corresponding switch means to flash until the selected mode is actuated.

5. The interface according to claim 3, wherein each of the switch means is also operable to de-select the associated operating mode, each of the switch means is capable of illumination independently of the associated display symbol, and, when one of the operating modes is de-selected, causing the corresponding switch means to flash until another operating mode is actuated.

6. The interface according to claim 1, wherein when the control system has entered one of the operating modes, the associated switch means is illuminated substantially constantly so as to act as a status indicator for the selected mode.

7. The interface according to claim 6, wherein each switch means is arranged to be operatively disconnected from the control system when the associated display symbol ceases illumination.

8. The interface according to claim 4, wherein at least one of the operating modes has a setting for the control system with a predetermined operational tolerance band, and the switch means associated with said at least one operating mode flashes if the control system strays from said tolerance band and remains flashing while the control system adjusts the setting back into the tolerance band.

9. The interface according to claim 1, wherein the interface is use with a vehicle suspension control system.

10. The interface according to claim 9, wherein one of the plurality of operating modes corresponds to operation of the suspension system at different ride heights.

11. The interface according to claim 1, wherein the control system is a suspension control system for the vehicle.

12. An interface for a control system of a vehicle, the control system having a plurality of operating modes, the interface comprising:

an operating mode selection means for manual selection of at least one of the plurality of operating modes;

a display symbol dedicated to each one of the plurality of operating modes; and

a controller arranged to determine which of the plurality of operating modes are available for actuation and which are unavailable for actuation, and to illuminate the display symbols corresponding to the operating modes available for actuation and cease illumination of the display symbols corresponding to the operating modes which are unavailable for actuation;

wherein the vehicle has various operation points which determine the availability of each of the plurality of operating modes, and the controller monitors the various operation points, during operation of the control system, and illuminates the display symbols corresponding to each of the plurality of operating modes when the operating mode becomes available for actuation, and ceases illumination of the display symbol corresponding to an operating mode which becomes unavailable for actuation.

13. The interface according to claim 12, wherein the vehicle has various operation aspects which determine the availability of the plurality of operating modes.

14. The interface according to claim 12, wherein each display symbol is substantially unviewable until illuminated.

15. The interface according to claim 12, wherein the operating mode selection means comprises a plurality of switch means each of which is associated with a respective one of the display symbols and is operable for selection of the operating mode associated with that display symbol.

16. The interface according to claim 15, wherein each of the switch means is capable of illumination independently of the associated display symbol, and, when one of the operating modes is selected, causing the corresponding switch means to flash until the selected mode is actuated.

17. The interface according to claim 15, wherein each of the switch means is also operable to de-select the associated operating mode, each of the switch means is capable of illumination independently of the associated display symbol, and, when one of the operating modes is de-selected, causing the corresponding switch means to flash until another operating mode is actuated.

18. The interface according to claim 12, wherein when the control system has entered one of the operating modes, the associated switch means is illuminated substantially constantly so as to act as a status indicator for the selected mode.

19. The interface according to claim 18, wherein each switch means is arranged to be operatively disconnected from the control system when the associated display symbol ceases illumination.

20. The interface according to claim 16, wherein at least one of the operating modes has a setting for the control system with a predetermined operational tolerance band, and the switch means associated with said at least one operating mode flashes if the control system strays from said tolerance band and remains flashing while the control system adjusts the setting back into the tolerance band.

21. The interface according to claim 12, wherein the interface is use with a vehicle suspension control system.

22. The interface according to claim 21, wherein one of the plurality of operating modes corresponds to operation of the suspension system at different ride heights.

23. The interface according to claim 12, wherein the control system is a suspension control system for the vehicle.

24. The interface according to claim 23, wherein the control system is a suspension control system for the vehicle.

25. An interface for a control system of a vehicle, the control system having a plurality of operating modes, the interface comprising:

an operating mode selection means for manual selection between said operating modes;

a display symbol dedicated to each of the operating modes;

control means arranged to determine which of the plurality of operating modes are available for selection and which are not, and to illuminate the display symbols corresponding to the available operating modes and extinguish the display symbols corresponding to the operating modes which are not available;

the mode selection means further comprising a plurality of switch means each switch means being associated with a respective one of the display symbols and operable for selection of the mode associated with that symbol; and

wherein each of the switch means is capable of illumination independently of the associated symbol, and when one of the operation modes has been selected using the corresponding switch means, the corresponding switch means is arranged to flash until the selected mode has been entered.