Hydraulic pressurizing medium supply assembly, method, and mobile work machine

Patent metadata

Field	Value
Publication number	US-11156239-B2
Application number	US-202016938390-A
Country	US
Kind code	B2
Filing date	Jul 24, 2020
Priority date	Jul 26, 2019
Publication date	Oct 26, 2021
Grant date	Oct 26, 2021

Abstract

A hydraulic pressurizing medium supply assembly having a hydro machine for supplying pressurizing medium of at least one hydraulic consumer, includes a hydraulic control block for controlling the at least one consumer, a first control module, and a second control module. The control block, by way of the first control module, is able to be controlled by at least one actuating signal. A data interface is included between the control modules. The first control module, by way of the data interface, as a further actuating signal transfers to the second control module as input variable/variables a nominal outlet pressure for the hydro machine and/or a nominal delivery volume for the hydro machine. The second control module by way of the nominal outlet pressure and/or by way of the nominal delivery volume controls an adjusting mechanism of the hydro machine by way of a valve actuating signal.

First claim

What is claimed is:

1. A hydraulic pressurizing medium supply assembly, comprising:
a hydro machine configured to supply pressurizing medium to at least one hydraulic consumer;
an adjusting mechanism operably connected to the hydro machine;
a hydraulic control block configured to control the at least one hydraulic consumer;
a first control module operably connected to the hydraulic control block and configured to generate at least one actuating signal for controlling the hydraulic control block;
a second control module operably connected to the adjusting mechanism; and
a data interface operably connected to the first and the second control modules,
wherein the data interface is configured to transfer a further actuating signal from the first control module to the second control module as at least one input variable,
wherein the at least one input variable corresponds to a nominal outlet pressure for the hydro machine and/or a nominal delivery volume for the hydro machine,
wherein the second control module is configured (i) to generate a valve actuating signal based on the at least one input variable, and (ii) to control the adjusting mechanism based on the valve actuating signal, and
wherein the at least one input variable includes at least one hydraulic parameter which predefines and/or limits a dynamic characteristic of the adjusting mechanism.

2. The hydraulic pressurizing medium supply assembly according to claim 1 , wherein the at least one hydraulic parameter includes a maximum gradient of one or a plurality of actual variable/variables of the hydraulic pressurizing medium supply assembly.

3. The hydraulic pressurizing medium supply assembly according to claim 1 , wherein the at least one hydraulic parameter includes at least one of a maximum delivery-volume adjustment rate of the hydro machine, a maximum pressure gradient for an actual outlet pressure of the hydro machine, a maximum nominal differential pressure for the hydro machine, and a maximum torque gradient.

4. The hydraulic pressurizing medium supply assembly according to claim 3 , wherein adapting the maximum nominal differential pressure takes place in such a manner that the maximum nominal differential pressure is included for a normal operation of the pressurizing medium supply assembly, and/or that the maximum nominal differential pressure is included for a precision-control range of at least one of the hydraulic consumers, and/or that a maximum nominal differential pressure is included in a general control range of the at least one hydraulic consumer.

5. The hydraulic pressurizing medium supply assembly according to claim 3 , wherein:
various operating modes are able to be set,
the various operating modes include at least one pre-set parameter and/or one pre-set actuating signal for the dynamic characteristic of the adjusting mechanism of the hydro machine, and
the various operating modes differ from one another in terms of at least one parameter and/or in terms of the at least one actuating signal.

6. The hydraulic pressurizing medium supply assembly according to claim 5 , wherein:
adapting a pressure gradient and/or a swivel angle gradient as one of the operating modes takes place as a function of the at least one hydraulic consumer which is being moved,
adapting of the maximum pressure gradient as one of the operating modes takes place as a function of a deflection of at least one operating element,
adapting the at least one hydraulic parameter as one of the operating modes takes place when a specific operating or actuating situation is detected, and/or
adapting a torque limit as one of the operating modes takes place as a function of an operating state of an electric drive.

7. The hydraulic pressurizing medium supply assembly according to claim 1 , wherein the data interface is configured to supply a nominal torque as the further actuating signal for the second control module.

8. The hydraulic pressurizing medium supply assembly according to claim 1 , wherein the at least one hydraulic parameter is set as a function of at least one of a temperature of the pressurizing medium, an actual rotating speed of the hydro machine, an actual outlet pressure of the hydro machine, and an actual delivery volume of the hydro machine.

9. The hydraulic pressurizing medium supply assembly according to claim 1 , further comprising:
at least one filter for the at least one input variable to the second control module,
wherein the at least one filter provides a PT 1 transfer function.

10. The hydraulic pressuring medium supply assembly according to claim 1 , wherein a mobile work machine includes the hydraulic pressurizing medium supply assembly.

Assignees

• Bosch Gmbh Robert

Inventors

• Geiger Daniel
• Muehlbauer Florian
• Golde Marcel
• Brand Michael
• An Minha
• Tetik Salih
• Wang Ximing

Classifications

• F04B1/12

  having cylinder axes coaxial with, or parallel or inclined to, main shaft axis · CPC title

• F04B49/065

  and making use of computers · CPC title

• F04B49/06

  Control using electricity (regulating by means of floats actuating electric switches F04B49/04) · CPC title

• F04B49/002

  Hydraulic systems to change the pump delivery · CPC title

• F04B17/06

  Mobile combinations · CPC title