AUTOMATED HOLDING METHOD FOR A VEHICLE ON A SLOPE

• US 20150100222A1
• Filed: 10/06/2014
• Published: 04/09/2015
• Est. Priority Date: 10/07/2013
• Status: Abandoned Application

• Current Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Original Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Inventors: Beger, Ulrich, ADEN, Alfred, SCHFER, Michael
• Application Number:
  US14/507,060
• Publication Number:
  US 20150100222A1
• Time in Patent Office: Days
• US Class Current: 701/116
• CPC Class Codes: B60T 2201/06 Hill holder; Start aid systems on inclined road
• CPC Class Codes: B60T 7/122 for locking of reverse movement
• CPC Class Codes: B60T 8/32 responsive to a speed condition, e.g. acceleration or deceleration using electrical circuitry or regulation means B60T8/17 ; B60T8/28 takes precedence; electric devices on electrically propelled vehicles indicating the wheel slip B60L3/10; measuring linear or angular speed per se G01P3/00

Abstract

A method for holding a vehicle, in particular a motor vehicle, on a slope in an automated manner, wherein a vehicle driver allows the vehicle to stop on the slope, wherein the vehicle rolls on the slope in a manner largely uninfluenced by the vehicle driver, and wherein, after this, the vehicle is brought to a hold position in an automated manner. Also, a computer program product, to a processing device or a computer unit, and to a safety device or a safety system, in particular a driver-assistance system, for a vehicle, in particular a motor vehicle.

Claims

1. A method for holding a vehicle, in particular a motor vehicle, on a slope in an automated manner, wherein a vehicle driver allows the vehicle to stop on the slope, wherein

the vehicle rolls on the slope in a manner largely uninfluenced by the vehicle driver, wherein, after this, the vehicle is brought to a hold position in an automated manner.

2. The automated holding method of claim 1, wherein the vehicle rolls on the slope in a manner largely uninfluenced by a vehicle brake and/or an accelerator pedal, wherein the vehicle is brought to the hold position in an automated manner.

3. The automated holding method of claim 1, wherein the method is carried out independently of a position of a selector lever of the vehicle, and/or the method is carried out independently of a position of the selector lever which is newly selected during the method.

4. The automated holding method of claim 1, wherein the vehicle is held on the slope immediately shortly before or after rolling on the slope by pressure being built up in an ESP system of the vehicle.

5. The automated holding method of claim 1, wherein:

after a comparatively long period of time, the hold position of the vehicle is ensured by an electric parking brake being activated in an automated manner;

the automated holding method is carried out at a drive torque which is requested by the vehicle driver by means of an accelerator pedal and which is excessively low; and

/or

pressure is actively built up in the event of the vehicle rolling back against the desired direction of travel.

6. The automated holding method of claim 1, wherein the automated holding method is terminated when:

a selector lever of the vehicle is shifted to a neutral position or to a parking lock;

a reversal of a desired direction of travel of the vehicle is indicated and/or takes place; and

/or

the parking brake of the vehicle is activated.

7. The automated holding method of claim 1, wherein, in the event of a desire of the vehicle driver to drive away being identified by the vehicle driver requesting a specific drive torque, the vehicle may be started, the service brake is released and the vehicle may be driven away in an automated manner.

8. The automated holding method of claim 1, wherein:

the slope is greater than 3%, ±

0.2% to ±

0.4%;

the vehicle driver allows the vehicle to stop on the slope during forward travel and/or reverse travel; and

/or

after the hold position has been assumed, the driver of the vehicle is requested to take control of the vehicle.

9. A computer program product having program coding means which are designed to carry out the automated holding method for a vehicle of claim 1 when the program coding means are run on a processing device or are stored on a computer-readable data storage medium.

12. The automated holding method of claim 4, wherein pressure is built up in the ESP system at least up to a substantially minimum brake pressure which is required depending on the slope.

13. The automated holding method of claim 8, wherein:

the slope is greater than 4%±

0.2% to ±

0.4%.

14. The automated holding method of claim 13, wherein:

the slope is greater than 5%±

0.2% to ±

0.5%.

15. The automated holding method of claim 14, wherein:

the slope is greater than 6%±

0.2% to ±

0.6%.

16. The automated holding method of claim 15, wherein:

the slope is greater than 7%±

0.2% to ±

0.7%.

17. The automated holding method of claim 16, wherein:

the slope is greater than 8%±

0.2% to ±

0.8%.

10. A processing device or computer unit, preferably a controller or control device for a vehicle, in particular a motor vehicle, wherein

the computer unit or the processing device is designed in such a way that an automated holding method, wherein a vehicle driver allows the vehicle to stop on the slope, wherein

the vehicle rolls on the slope in a manner largely uninfluenced by the vehicle driver, wherein, after this, the vehicle is brought to a hold position in an automated manner, can be carried out and/or a computer program product, having program coding means which are designed to carry out the automated holding method when the program coding means are run on a processing device or are stored on a computer-readable data storage medium, can be run by said computer unit or processing device.

11. A safety device or safety system for a vehicle, in particular a driver-assistance system for a motor vehicle, wherein

the safety device or the safety system is set up in such a way that an automated holding method, wherein a vehicle driver allows the vehicle to stop on the slope, wherein

the vehicle rolls on the slope in a manner largely uninfluenced by the vehicle driver, wherein, after this, the vehicle is brought to a hold position in an automated manner, can be carried out by said safety device or safety system, a computer program product having program coding means which are designed to carry out the automated holding method when the program coding means are run on a processing device or are stored on a computer-readable data storage medium being implemented in said safety device or safety system and/or said safety device or safety system having a processing device or a computer unit wherein the computer unit or the processing device is designed in such a way that the automated holding method can be carried out and/or the computer program product can be run by the computer unit or processing device.