Device and method for regulating the operation of a hydraulically operated towing unit on a vehicle

Patent metadata

Field	Value
Publication number	US-10143125-B2
Application number	US-201615270254-A
Country	US
Kind code	B2
Filing date	Sep 20, 2016
Priority date	Sep 24, 2015
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

A device for a vehicle, in particular a tractor, with a hydraulic actuating unit for regulating the operation of a towing unit on the vehicle comprises at least one speed detecting unit with two distance determining sensors positioned one after the other in the direction of travel of the vehicle and directed toward the ground and an analysis unit as well as data communications connections to a vehicle operating system and a hydraulic operating system associated with the hydraulic actuating unit.

First claim

What is claimed is:

1. A method for operating a vehicle with a hydraulic actuating unit for regulating an operation of a towing unit on the vehicle, comprising:
a) determining a respective ground profile while the vehicle is traveling with each of two distance determining sensors positioned one after the other in a direction of travel of the vehicle and directed toward the ground;
b) determining a time offset of the determined respective ground profiles;
c) determining a speed of the vehicle from the determined time offset;
d) comparing the determined speed with an expected speed in order to determine a drive slip; and
e) activating a lifting mechanism of the towing unit if the determined drive slip exceeds a reference value.

2. The method according to claim 1 , wherein the respective ground profiles are produced while the vehicle is traveling.

3. The method according to claim 1 , further comprising:
determining the speed of the vehicle independently with an acceleration sensor provided on the vehicle; and
checking or offsetting the speed of the vehicle determined with the acceleration sensor with the speed determined from the determined time offset.

4. The method according to claim 3 , further comprising:
using in step d) the speed of the vehicle determined with the acceleration sensor if a predetermined deviation parameter is reached.

5. The method according to claim 1 , further comprising:
determining and providing the expected speed with a vehicle operating system.

6. A vehicle that has a control device configured to carry out a method for operating the vehicle with a hydraulic actuating unit for regulating an operation of a towing unit on the vehicle, the method comprising:
a) determining a respective ground profile while the vehicle is traveling with each of two distance determining sensors positioned one after the other in a direction of travel of the vehicle and directed toward the ground;
b) determining a time offset of the determined respective ground profiles;
c) determining a speed of the vehicle from the determined time offset;
d) comparing the determined speed with an expected speed in order to determine a drive slip; and
e) activating a lifting mechanism of the towing unit if the determined drive slip exceeds a reference value.

7. The vehicle according to claim 6 , wherein the respective ground profiles are produced while the vehicle is traveling.

8. The vehicle according to claim 6 , wherein the method further comprises:
determining the speed of the vehicle independently with an acceleration sensor provided on the vehicle; and
checking or offsetting the speed of the vehicle determined with the acceleration sensor with the speed determined from the determined time offset.

9. The vehicle according to claim 8 , wherein the method further comprises using in step d) the speed of the vehicle determined with the acceleration sensor if a predetermined deviation parameter is reached.

10. The vehicle according to claim 6 , wherein the method further comprises determining and providing the expected speed with a vehicle operating system.

Assignees

• Bosch Gmbh Robert

Inventors

• Schleyer Markus
• Rose Steffen

Classifications

• A01B63/112

  to control draught load, i.e. tractive force · CPC title

• A01B79/00

  Methods for working soil · CPC title

• A01B63/145

  for controlling weight transfer between implements and tractor wheels · CPC title

• A01B76/00

  Parts, details or accessories of agricultural machines or implements, not provided for in groups A01B51/00 - A01B75/00 · CPC title

• A01B61/00

  Devices for, or parts of, agricultural machines or implements for preventing overstrain · CPC title