GEAR SELECTION DEVICE FOR A MOTOR VEHICLE

• US 20130166164A1
• Filed: 12/17/2012
• Published: 06/27/2013
• Est. Priority Date: 12/17/2011
• Status: Abandoned Application

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Moebus, Marco
• Application Number:
  US13/717,540
• Publication Number:
  US 20130166164A1
• Time in Patent Office: Days
• US Class Current: 701/65
• CPC Class Codes: F16H 2059/663 Road slope
• CPC Class Codes: F16H 2059/666 Determining road conditions by using vehicle location or position, e.g. from global navigation systems [GPS]
• CPC Class Codes: F16H 59/14 Inputs being a function of torque or torque demand
• CPC Class Codes: F16H 59/66 Road conditions, e.g. slope, slippery
• CPC Class Codes: F16H 61/0213 characterised by the method for generating shift signals

Abstract

A gear selection device for a motor vehicle is provided. The gear selection device includes a logic unit which is equipped in order to determine a gear to be engaged in a transmission of the motor vehicle by means of at least one variable connected to the load of an engine of the motor vehicle, and an ambient area sensor. The gear selection device is equipped in order to take into account information supplied by the ambient area sensor relating to the road located in front of the vehicle with the outputting of a selection signal specifying a newly determined gear.

Claims

1. A gear selection device for a motor vehicle, comprising:

a logic unit that determines a gear to be engaged in a transmission of the motor vehicle by means of at least one variable connected to the load of an engine of the motor vehicle; and

an ambient area sensor,

wherein the gear selection device takes into account information relating to the road located in front of the vehicle supplied by the ambient area sensor when outputting a selection signal specifying a newly determined gear.

2. The gear selection device according to claim 1, wherein the gear selection device is equipped in order to take into account information supplied by the ambient area sensor with the determining of the gear specified in the selection signal.

3. The gear selection device according to claim 1, wherein the gear selection device senses at least one traffic situation which makes a change of the speed of the motor vehicle necessary and in such at least one traffic situation, suppresses outputting the selection signal.

4. The gear selection device according to claim 3, wherein the at least one traffic situation requires a change of the speed of the motor vehicle, and the gear selection device senses the presence of an obstacle on the road.

5. The gear selection device according to claim 4, wherein the gear selection device evaluates the time up to the reaching of the obstacle and suppresses the outputting of the selection signal only when this time undershoots a limit value.

6. The gear selection device according to claim 5, wherein the at least one traffic situation would require a changing of the speed of the motor vehicle, and the gear selection device senses the presence of a curve of the road located ahead.

7. The gear selection device according to claim 6, wherein the gear selection device is equipped to suppress the outputting of the selection signal only when it deems a braking of the vehicle necessary for negotiating the curve located ahead.

8. The gear selection device according to claim 1, wherein the gear selection device is equipped to sense a traffic situation which requires a reduction of the speed of the motor vehicle to a target speed, and to determine a new gear so that the target speed is reached.

9. The gear selection device according to claim 1, wherein the ambient area sensor further comprises at least one of a camera, a radar and a navigation system.

10. The gear selection device according to claim 1, wherein the ambient area sensor is equipped to supply information regarding uphill or downhill gradients of the road.

11. The gear selection device according to claim 1 wherein the gear selection device further comprises a display instrument which receives a selection signal in order to display the determined gear.

12. The gear selection device according to claim 11, wherein the display instrument displays the determined gear only when it differs from the gear currently engaged in a connected transmission.

13. The gear selection device according to claim 12, wherein the gear selection device further comprises an actuator which receives the selection signal in order to engage the determined gear in a transmission.

14. A motor vehicle, comprising:

a gear selection device that includes a logic unit that determines a gear to be engaged in a transmission of the motor vehicle by means of at least one variable connected to the load of an engine of the motor vehicle;

an ambient area sensor; and

a display instrument which receives a selection signal in order to display the determined gear,

wherein the gear selection device takes into account information relating to the road located in front of the vehicle supplied by the ambient area sensor when outputting a selection signal specifying a newly determined gear.

15. The motor vehicle according to claim 14, wherein the display instrument displays the determined gear only when it differs from the gear currently engaged in a connected transmission.

16. The motor vehicle according to claim 15, wherein the gear selection device further comprises an actuator which receives the selection signal in order to engage the determined gear in a transmission.

17. The motor vehicle according to claim 14, wherein the gear selection device is equipped to sense a traffic situation which requires a reduction of the speed of the motor vehicle to a target speed, and to determine a new gear so that the target speed is reached.

18. The motor vehicle according to claim 14, wherein the ambient area sensor further comprises at least one of a camera, a radar and a navigation system.

19. The motor vehicle according to claim 14, wherein the gear selection device is equipped in order to take into account information supplied by the ambient area sensor with the determining of the gear specified in the selection signal.

20. The motor vehicle according to claim 14, wherein the gear selection device senses at least one traffic situation which makes a change of the speed of the motor vehicle necessary and in such at least one traffic situation, suppresses outputting the selection signal.