Multi-direction vehicle control sensing

• US 8,751,095 B2
• Filed: 02/11/2013
• Issued: 06/10/2014
• Est. Priority Date: 07/17/2006
• Status: Active Grant

• Current Assignee: Hyster-Yale Group Inc.
• Original Assignee: NMHG Oregon, LLC
• Inventors: Goodwin, Christopher J., Crowell, Brian R., Rose, Timothy L., Davis, James W., Johnson, Gerald A., McGoldrick, Kevin J., Curry, Michael
• Primary Examiner(s): TO, TOAN C
• Application Number:
  US13/764,481
• Publication Number:
  US 20130158807A1
• Time in Patent Office: 484 Days
• Field of Search: 180/321, 180/322, 180/323, 180/333, 180/335, 701/50
• US Class Current: 701/29.1
• CPC Class Codes: B62D 15/00 Steering not otherwise provided for
• CPC Class Codes: B62D 6/00 Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits means for initiating a change in direction B62D1/00; steering valves B62D5/06; combined with means for inclining the vehicle body or wheels on bends B62D9/00
• CPC Class Codes: B62D 9/00 Steering deflectable wheels not otherwise provided for steering positon indicators B62D15/02
• CPC Class Codes: B66F 9/07568 Steering arrangements
• CPC Class Codes: B66F 9/0759 Details of operating station, e.g. seats, levers, operator platforms, cabin suspension
• CPC Class Codes: B66F 9/20 Means for actuating or controlling masts, platforms, or forks power take-off from vehicle transmissions, combined with vehicle propulsion systems B60K
• CPC Class Codes: Y10T 74/20 Control lever and linkage systems
• CPC Class Codes: Y10T 74/20012 Multiple controlled elements
• CPC Class Codes: Y10T 74/20207 Multiple controlling elements for single controlled element

Abstract

A vehicle includes a first control configured to operate the vehicle from a first operator position facing a front of the vehicle and a second control configured to operate the vehicle from a second operator position facing a rear of the vehicle. The vehicle further includes a processor configured to monitor for an operator presence in the first operator position or the second operator position and receive a vehicle operating request, wherein the operator presence is monitored independent of receiving the vehicle operating request. The processor is further configured to enable either the first control or the second control and select a vehicle operating parameter associated with the vehicle operating request, wherein the vehicle operating parameter varies according to which control is enabled.

Claims

1. A steering system comprising:

a first control;

a second control; and

a processing device configured to;

monitor an operator presence;

enable a control selected from the first control and the second control in response to monitoring the operator presence;

receive a steering command for a vehicle;

steer the vehicle with a first steering sense in a first direction of travel in response to receiving the steering command and enabling the first control; and

steer the vehicle with a second steering sense in the first direction of travel in response to receiving the steering command and enabling the second control.

2. The steering system of claim 1, wherein the first control is associated with a first operator position, and wherein the second control is associated with a second operator position which is substantially opposite to that of the first operator position.

3. The steering system of claim 1, wherein the first control comprises:

a control handle; and

a sensor configured to detect the operator presence at the control handle.

4. The steering system of claim 1, wherein the first control comprises an acceleration control, and wherein the processing device is configured to enable the first control by enabling the acceleration control to accelerate the vehicle in the first direction of travel.

5. The steering system of claim 1, wherein the enabled control comprises a sensor, and wherein the processing device is configured to monitor the operator presence at the enabled control in response to receiving input from the sensor.

6. The steering system of claim 1, further comprising a steering apparatus located on an opposite side of the vehicle from the enabled control, wherein the processing device is configured to receive the steering command from the steering apparatus.

7. The steering system of claim 1, wherein the processing device is configured to monitor the operator presence independently of receiving the steering command.

8. The steering system of claim 1, wherein the second steering sense is reversed with respect to the first steering sense.

9. A method, comprising:

monitoring for an operator presence;

enabling a control selected from a first control and a second control in response to said monitoring for an operator presence;

receiving a steering command for a vehicle; and

in a first direction of travel and responsive to the steering command, steering the vehicle with a first steering orientation or steering the vehicle with a second steering orientation that is the reverse of the first steering orientation depending on which control is enabled.

10. The method of claim 9, wherein said steering the vehicle comprises steering the vehicle in a clockwise steering orientation in the first direction of travel in response to enabling the first control, and wherein said steering comprises steering the vehicle in a counterclockwise steering orientation in the first direction of travel in response to enabling the second control.

11. The method of claim 9, wherein said in a first direction of travel and responsive to the steering command, steering the vehicle comprises turning the vehicle left when the first control is enabled, and turning the vehicle right when the second control is enabled.

12. The method of claim 9, wherein the first control is associated with a first operator position facing a front of the vehicle, and wherein the second control is associated with a second operator position facing a rear of the vehicle.

13. The method of claim 9, wherein an enabling command is received from one or more sensors configured to detect the operator presence, and wherein said enabling comprises enabling the control associated with an operator position where the operator presence is detected.

14. The method of claim 13, wherein the first control is associated with a first operator position, and wherein the second control is associated with a second operator position which is substantially opposite to that of the first operator position.

15. The method of claim 9, further comprising comparing the steering command with a state of vehicle operation to determine if the vehicle is in a ready state, wherein said in a first direction of travel and responsive to the steering command, steering the vehicle comprises steering the vehicle in response to determining that the vehicle is in the ready state.

16. The method of claim 9, further comprising disabling the control which is not selected.

17. The method of claim 9, further comprising:

monitoring a continued operator presence at the enabled control; and

disabling the enabled control when the continued operator presence is not detected for a predetermined time period.

18. An apparatus, comprising:

first control means for controlling a vehicle;

second control means for controlling the vehicle;

means for monitoring an operator presence;

means for enabling a control selected from the first control and the second control in response to monitoring the operator presence; and

means for steering the vehicle in a first direction of travel in response to receiving a steering command, wherein a steering orientation associated with the steering command in the first direction of travel is reversed depending on the enabled control.

19. The apparatus of claim 18, wherein the means for steering comprises means for steering the vehicle in a clockwise steering orientation in the first direction of travel in response to enabling the first control, and wherein the means for steering comprises means for steering the vehicle in a counterclockwise steering orientation in the first direction of travel in response to enabling the second control.

20. The apparatus of claim 18, wherein the means for monitoring comprises means for monitoring the operator presence at one or both of the first control means and the second control means.

21. The apparatus of claim 18, further comprising means for adjusting a vehicle maximum speed depending on the enabled control.