Method for controlling RPM of construction machine engine
US9885294B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2012 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Apr 19, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D31/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
According to the present disclosure, there is provided a method for controlling an RPM of an engine of construction machinery, including and converting and setting the received load factor to a load variation rate; receiving a current load factor of the engine and converting the received current load factor of the engine to a load variation rate; controlling driving of the engine with a corrected RPM, which is obtained by decreasing the RPM of the engine by a predetermined rate from a preset RPM when the current load factor of the engine and the load variation rate according to the current load factor are equal to or smaller than a predetermined rate of the predetermined load factor of the engine and a predetermined rate of the load variation rate for a first time, respectively; and controlling continuously decreasing the corrected RPM to a predetermined rate or smaller, when the current load factor of the engine and the load variation rate according to the current load factor are equal to or smaller than the predetermined rate of the predetermined load factor of the engine and the predetermined rate of the load variation rate for a second time, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.