Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Energy-saving system and method for power matching between engine and hydraulic pump

An energy-saving system and engine technology, which is applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problems that the excavator's energy saving is difficult to achieve, and achieve the effect of reducing power loss

Inactive Publication Date: 2013-11-20
NANJING UNIV OF TECH
View PDF7 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the power system and load matching are controlled according to working conditions, the power mode is generally selected and set manually. Once the power mode does not match the actual working conditions, the engine will work in the low-efficiency area, which greatly improves the excavation. The goal of machine energy saving is difficult to achieve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Energy-saving system and method for power matching between engine and hydraulic pump
  • Energy-saving system and method for power matching between engine and hydraulic pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0046] The present invention will be further described below by taking an excavator as an example.

[0047] The pressure sensor 13 is installed inside the bucket of the excavator for real-time detection of the pressure on the inside of the bucket when the excavator is working, that is, the load pressure. The electronic load controller 12 is a PID controller, which is installed in the cab. The pressure sensor 13, the electronic load controller 12 and the energy-saving controller 11 are connected through CAN (controller area network). The pressure sensor 13 receives the pressure signal and converts it into an electrical signal. Send to the electronic load controller 12, the electronic load controller 12 is used to receive the photoelectric encoder 8 and the pressure relay 5 signal, and the energy-saving controller 11 is used to control the operation of the throttle potentiometer 7 and the proportional solenoid valve 10. The throttle potentiometer 7 is installed on the engine oil...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an energy-saving system for power matching between an engine and a hydraulic pump. The energy-saving system comprises a pressure sensor, an electronic load controller, an energy-saving controller, an accelerator potentiometer, an optical-electricity encoder, an actuating mechanism, a proportional electromagnetic valve, a pressure relay, an engine oil pump, the engine, a variable pump, a variable mechanism and an oil tank, wherein the oil tank is respectively connected with the engine oil pump and the variable pump, the engine oil pump is respectively connected with the accelerator potentiometer and the engine, and the engine is coaxially connected with the variable pump and is used for driving the variable pump to operate; the optical-electricity encoder is arranged on the engine; the variable pump is synchronously connected with the actuating mechanism, the pressure relay and the variable mechanism, and the proportional electromagnetic valve is arranged on the variable mechanism; the accelerator potentiometer and the proportional electromagnetic valve are respectively and electrically connected with the energy-saving controller; the optical-electricity encoder and the pressure relay are respectively connected with the electronic load controller, and the electronic load controller is connected with the pressure sensor; the variable mechanism is used for controlling the rotating speed of the variable pump.

Description

technical field [0001] The invention relates to a mechanical engineering equipment control device, in particular to a power matching energy-saving system and method for an engine and a hydraulic pump. Background technique [0002] In the field of construction machinery, the working efficiency and fuel-saving performance of excavators driven by hydraulic pumps are closely related to the performance of hydraulic pumps and engines. The ideal working state of the power system should always provide power output according to the load demand, so that the power of the diesel engine can be fully utilized without making it work in an overloaded state, and when the external load is small, it will not cause waste of power. In daily operation, when the power required by the external load is large, the diesel engine runs at full load, and the hydraulic system can completely absorb the power from the diesel engine, but it will not make the diesel engine work in an overloaded state, causing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20E02F9/22F02D29/04F02D11/10
Inventor 袁祖强袁峰峰殷晨波叶仪周玲君周唯靓
Owner NANJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products