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Dual-fuel engine instrument and control method for dual-fuel engine provided with dual-fuel engine instrument

A dual-fuel engine and control method technology, applied in engine control, combustion engine, fuel injection control and other directions, can solve the problems of inability to monitor and display the natural gas pressure and dual-fuel operation mode of dual-fuel engines, and achieve the effect of ensuring normal operation.

Pending Publication Date: 2018-09-28
WEICHAI HEAVY MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first technical problem to be solved by the present invention is to provide a dual-fuel engine instrument, which solves the problem that the traditional diesel engine (mechanical pump) instrument cannot monitor and display the natural gas pressure and dual-fuel operation of the dual-fuel engine. Mode and other engine parameters

Method used

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  • Dual-fuel engine instrument and control method for dual-fuel engine provided with dual-fuel engine instrument

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Embodiment Construction

[0023] Such as Figure 1 to Figure 3 As shown, the present invention provides a kind of embodiment of dual-fuel engine instrument, and it comprises instrument housing 1, and PCB circuit board 2 is housed in described instrument housing 1, and instrument CPU3 is housed on PCB circuit board 2, PCB circuit board and The specific structure of the meter CPU and the corresponding connection structure are all prior art, and will not be repeated here. The front surface of the meter housing 1 is equipped with a display screen 4 electrically connected to the meter CPU3. The surface of the display screen is referred to figure 2 , it can display the corresponding oil temperature, speed, oil pressure, gas pressure, water temperature and other values, and can display the words of engine operation mode (dual fuel mode shown in the figure), which can display multiple words, not only are shown in the figure, and will not be listed one by one here. The rear surface of the instrument housing i...

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Abstract

The invention discloses a dual-fuel engine instrument. The dual-fuel engine instrument comprises an instrument shell; a PCB circuit board is installed in the instrument shell, and an instrument CPU isinstalled on the PCB circuit board; a display screen is installed on the instrument shell, and a wiring harness interface is installed on the surface of the rear portion of the instrument shell; andan installation bracket is installed on the outer surface of the instrument shell. The invention further discloses a control method for a dual-fuel engine. The engine is included, the dual-fuel engineinstrument is installed on the engine, the engine is electrically connected with an ECU, a rotation speed sensor, an engine oil pressure sensor, an engine oil temperature sensor, a water temperaturesensor, a fuel gas pressure sensor and a fuel gas injection valve of the engine are all electrically connected with the ECU, and the ECU is electrically connected with the instrument CPU through the wiring harness interface and a wiring harness; and the display screen can display characters such as 'diesel oil module' or 'dual-fuel module', and display corresponding engine operation parameters, accordingly, the operation parameters of the engine can be monitored in real time, and normal operation of the engine is ensured.

Description

technical field [0001] The invention relates to a dual-fuel engine instrument and a control method for the dual-fuel engine equipped with the instrument. Background technique [0002] As the country's requirements for environmental protection become more and more stringent, and low-emission clean energy is vigorously promoted, the market for natural gas engines and dual-fuel engines with mixed combustion of diesel and natural gas is growing. The original mechanical pump diesel engine has no diesel ECU. When it is refitted with natural gas equipment, it cannot output electrical signals to the diesel engine, so it is impossible to monitor in real time whether the diesel engine (engine) is in what kind of fuel state. That is, the mechanical pump dual-fuel engine does not have a diesel engine ECU. According to the current technology, it is impossible to realize the real-time distinction and monitoring of the operation mode of the mechanical pump dual-fuel engine. At present, th...

Claims

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Application Information

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IPC IPC(8): F02B77/08F02D41/00F02D41/22
CPCF02B77/08F02D41/0025F02D41/22F02D2041/228Y02T10/40
Inventor 张文杰宋杰李杰田书广
Owner WEICHAI HEAVY MACHINERY
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