Systems and methods for detecting a type of hydraulic device

Patent metadata

Field	Value
Publication number	US-9835181-B2
Application number	US-201313867465-A
Country	US
Kind code	B2
Filing date	Apr 22, 2013
Priority date	Apr 22, 2013
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

A system for detecting a type of hydraulic device. The system includes a hydraulic device. The system also includes a power supply having an engine and a controller. The controller is configured to detect a voltage of a signal from the hydraulic device, to categorize the signal as a type of signal of multiple types of signals based on the voltage, and to control a hydraulic output based on the voltage and the type of the signal.

First claim

The invention claimed is:

1. A system comprising:
a hydraulic device configured to generate a signal indicative of a load applied to the hydraulic device; and
a power supply having an engine, a hydraulic pump drivingly coupled to the engine, and a controller communicatively coupled to the engine and to the hydraulic pump, wherein the controller is configured to detect a voltage of the signal from the hydraulic device, to categorize the signal as a type of signal of a plurality of types of signals based on the voltage, and to control a hydraulic output of the hydraulic pump based on the voltage and the type of the signal, wherein the controller is configured to categorize the signal as the type of signal of the plurality of types of signals based on the voltage by comparing the voltage for the signal to possible voltage values of hydraulic signals.

2. The system of claim 1 , wherein the controller is configured to detect the voltage of the signal from the hydraulic device before the engine of the power supply is turned on.

3. The system of claim 1 , wherein the hydraulic device comprises a hydraulic crane.

4. The system of claim 1 , wherein the hydraulic output comprises a quantity of hydraulic fluid provided by the hydraulic pump to the hydraulic device.

5. The system of claim 1 , wherein the plurality of types of signals comprises a normal signal, a step signal, a positive proportional signal, an offset step signal, a negative proportional signal, or some combination thereof.

6. The system of claim 1 , wherein the power supply is a service pack having the engine, the hydraulic pump, and the controller, wherein the power supply is configured to be integrated with a work vehicle, and wherein the service pack includes an access panel having a hydraulic coupling configured to interface with the hydraulic device.

7. The system of claim 1 , wherein the controller is configured to identify a type of control system used by the hydraulic device based on categorizing the signal as the type of signal of the plurality of types of signals.

8. The system of claim 7 , wherein the controller is configured to identify the type of control system used by the hydraulic device without operator input.

Assignees

• Illinois Tool Works

Inventors

• Renner Ross Neal

Classifications

• F15B2211/6303

  using input signals · CPC title

• F15B21/08

  Servomotor systems incorporating electrically operated control means (F15B21/02, {F15B21/065} take precedence) · CPC title

• F15B13/00 Primary

  Details of servomotor systems ({F15B1/04, F15B1/26, F15B3/00, F15B7/08, F15B11/02, F15B11/10,} F15B15/00 take precedence){; Valves for servomotor systems} · CPC title

• B66C23/42

  with jibs of adjustable configuration, e.g. foldable · CPC title

• B66C13/18 Primary

  Control systems or devices (exclusively for rope, cable, or chain winding mechanisms B66D1/40) · CPC title