Method and device for controlling main control valve of construction machinery
US10385544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2014 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Aug 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05G9/047
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a method of controlling a main control valve in construction machinery, a first joystick signal for controlling a first control valve device and/or a second joystick signal for controlling a second control valve device are received from one joystick. While one of the first and second control valve devices operates, whether or not a joystick signal for controlling another of the first and second control valve devices is inputted is determined. A weighted value is applied to a threshold of valve operation initiation with respect to a joystick displacement to determine a raised threshold of valve operation initiation. If the inputted joystick displacement satisfies the raised threshold of valve operation initiation, a valve stoke corresponding to the inputted joystick displacement is calculated and outputted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.