Method for controlling RPM of construction machine engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 6, 2018
Issued Date -
N/A
app pub date -
Dec 18, 2012
filing date -
Dec 28, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- F02D Class
- 1267 Applications Filed
- 1107 Patents Issued To-Date
- 87.38 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- F02D Class
- 20.05 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 6, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 6, 2029 |
