Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HYDRAULIC POWER CONTROLLER
Document Type and Number:
Japanese Patent JP3888700
Kind Code:
B2
Abstract:

PURPOSE: To prevent the reduction of economy of fuel by providing a response device to be controlled in a hydraulic device to control engine lug during operation and give an instruction for the maximum power output without increasing an amount of emissions greatly.
CONSTITUTION: A pump parameter sensor 16 and an engine parameter sensor 18 generate parameter signals, which are input in an engine feed forward controller 20 and a pump feed forward controller 22. The engine feed forward controller 20 supplies an input to an engine governor 24, which changes an amount of fuel injected into an internal combustion engine 12 in response to an input for it. The pump feed forward controller 22 supplies an input to a pump discharge amount controller 26, which controls a discharge amount of a variable discharge amount hydraulic pump 14 in response to an input for it. This device can be operated more effectively in response to sensed load increasing above usable power due to the integration of the controllers and sensed parameters.


Inventors:
Michael S. Lukichi
Application Number:
JP31541394A
Publication Date:
March 07, 2007
Filing Date:
December 20, 1994
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CATERPILLAR INCORPORATED
International Classes:
F02D29/04; F04B49/00; F02D31/00; F04B49/06; (IPC1-7): F04B49/00; F02D29/04
Domestic Patent References:
JP5302574A
JP1117992A
JP61025979A
JP62029778A
JP64032304A
JP2153236A
JP1178038A
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Nobuo Ogawa



 
Previous Patent: NUTRIENT COMPOSITION FOR ANIMALS

Next Patent: CHARACTER CONVERTER