Agricultural utility vehicle having a power takeoff and method for operating the power takeoff

Patent metadata

Field	Value
Publication number	US-10631464-B2
Application number	US-201715794623-A
Country	US
Kind code	B2
Filing date	Oct 26, 2017
Priority date	Oct 28, 2016
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

An agricultural utility vehicle includes a working power takeoff drivable by means of an internal combustion engine for operating an implement. The utility vehicle further includes an auxiliary power takeoff, which can be driven by an energy storage device and is coupled to the working power takeoff in such a manner that the working power takeoff is additionally driven at least transiently by the auxiliary power takeoff.

First claim

The invention claimed is:

1. An agriculture utility vehicle, comprising:
an internal combustion engine;
an implement operably connected to the rear of the vehicle;
an energy storage device operably connected to the front of the vehicle;
a rear working power takeoff operably coupled to the internal combustion engine and the energy storage device; and
a front auxiliary power takeoff operably coupled to the energy storage device and the internal combustion engine;
wherein in a first mode, the internal combustion engine drives the rear working power takeoff to operate the implement and the front auxiliary power takeoff to provide energy to the energy storage device;
wherein in a second mode, the internal combustion engine drives the rear working power takeoff to operate the implement, and the energy storage device drives the front auxiliary power takeoff to provide additional power to the rear working power takeoff for the implement.

2. The vehicle of claim 1 , wherein the front auxiliary power takeoff is operably functional as an additional drive during an elevated load torque or during a load torque peak at the working power takeoff.

3. The vehicle of claim 1 , wherein the energy storage device comprises an energy storage unit for storing kinetic energy from the front auxiliary power takeoff.

4. The vehicle of claim 3 , wherein the energy storage device comprises a flywheel mass.

5. The vehicle of claim 1 , wherein the energy storage device comprises an electrical energy storage unit.

6. The vehicle of claim 5 , wherein the energy storage device comprises an electrical machine operably connected to the electrical energy storage unit and the auxiliary power takeoff.

7. The vehicle of claim 6 , wherein the electrical machine comprises a motor function and a generator function.

8. The vehicle of claim 1 , wherein the energy storage device is arranged on or in a front three-point hitch.

9. The vehicle of claim 1 , wherein the implement is designed as a large baler.

10. A method for driving a rear working power takeoff of an agricultural utility vehicle, comprising:
providing an internal combustion engine, an implement connected to the rear of the agricultural utility vehicle, an energy storage device connected to the front of the agricultural utility vehicle, and a front auxiliary power takeoff;
operably driving the rear working power takeoff by the internal combustion engine;
operably driving the front auxiliary power takeoff by the internal combustion engine to power the energy storage device;
controllably operating the implement by the rear working power takeoff;
operably driving the front auxiliary power takeoff by the energy storage device;
coupling the rear working power takeoff to the front auxiliary power takeoff; and
at least partially driving the rear working power takeoff in a transient manner by the front auxiliary power takeoff to provide additional power for the implement.

11. The method of claim 10 , further comprising:
determining an operating information item of the implement in operation; and
depending on the operating information item, defining a time or a period of time in which the rear working power takeoff is operably driven by the front auxiliary power takeoff.

12. The method of claim 10 , wherein the implement is designed as a large baler.

13. The method of claim 10 , wherein the front auxiliary power takeoff is operably functional as an additional drive during an elevated load torque or during a load torque peak at the working power takeoff.

14. The method of claim 10 , wherein the energy storage device comprises an energy storage unit for storing kinetic energy from the auxiliary power takeoff.

15. The method of claim 14 , wherein the energy storage device comprises a flywheel mass.

16. The method of claim 10 , wherein the energy storage device comprises an electrical energy storage unit.

17. The method of claim 16 , wherein the energy storage device comprises an electrical machine operably connected to the electrical energy storage unit and the auxiliary power takeoff.

18. The method of claim 17 , wherein the electrical machine comprises a motor function and a generator function.

19. The method of claim 10 , wherein the energy storage device is arranged on or in a front three-point hitch.

Assignees

• Deere & Co

Inventors

• Gresch Valentin
• Kremmer Martin

Classifications

• B60R16/03

  for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)} · CPC title

• A01F15/0841 Primary

  Drives for balers · CPC title

• B60K25/06

  from the transmission power take-off · CPC title

• B60Y2200/221

  Tractors · CPC title

• B60K17/28 Primary

  characterised by arrangement, location, or type of power take-off · CPC title