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A dual-fuel mode display and communication method and system

A dual-fuel mode, communication system technology, used in fuel injection control, combustion engines, internal combustion piston engines, etc., can solve the problems of frequent changes in gas pressure, gas pressure errors, etc. Avoid the effect of gas pressure changes

Active Publication Date: 2020-06-26
WEICHAI HEAVY MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are contradictions among the requirements of the three. For example, the initial design can fully meet the local ship inspection requirements. When entering the dual-fuel mode, there is monitoring of the gas pressure. Only when the gas pressure meets the conditions can the dual-fuel mode be entered. Otherwise, the engine cannot enter the engine due to an error Dual-fuel mode, but most of the dual-fuel engines are equipped with modified ships. In actual use, customers may experience frequent changes in gas pressure due to insufficient water temperature and insufficient gasification gas in the carburetor, causing gas pressure to report errors, thus exiting dual-fuel mode.

Method used

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  • A dual-fuel mode display and communication method and system
  • A dual-fuel mode display and communication method and system
  • A dual-fuel mode display and communication method and system

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Embodiment 1

[0062] like figure 1 and figure 2 As shown, a dual-fuel mode display and communication method is based on a dual-fuel mode display and communication system, and the dual-fuel mode display and communication system includes a display unit;

[0063] method, including the following steps:

[0064] Step S1, judging whether the engine enters the dual-fuel mode;

[0065] Step S10, if yes (the engine is allowed to enter the dual-fuel mode), transmit the first signal to the security system, control the operation of the gas electronic control system to monitor the working conditions, and control the injection valve according to the working conditions;

[0066] Step S11, if no (the engine is not allowed to enter the dual-fuel mode, it is the pure diesel mode), transmit the second signal to the security system, and generate a corresponding operating mode display signal, at this time the operating mode display signal corresponds to the pure diesel mode;

[0067] Step S2, judging whethe...

Embodiment 2

[0106] like image 3 As shown, a dual-fuel mode display and communication system includes an electronic control unit, a mode switching monitoring unit electrically connected to the electronic control unit, a gas action monitoring unit, a gas pressure monitoring unit and a display unit. In this example, the electronic control unit It is also electrically connected with the security system and the gas electric control system respectively.

[0107] The mode switching monitoring unit is used to judge whether the engine enters the dual-fuel mode, and transmits the first signal to the security system according to the judgment result, controls the operation of the gas electric control system to monitor the working conditions, controls the injection valve according to the working conditions, or transmits the second signal To the security system, and generate the operation mode display signal corresponding to the pure diesel mode.

[0108] Among them, the gas action monitoring unit is...

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Abstract

The invention discloses a dual-fuel mode display and communication method and system, and relates to the field of dual-fuel engines. Gas monitoring and injection valve actions are separated, monitoring is carried out on whether one engine enters a dual-fuel mode or not, whether an injection valve acts or not, and whether the gas pressure is matched with a preset pressure threshold or not, the simple judgement logic and signal output are adopted, the more accurate running mode of the engine is displayed so that the engine can be controlled more accurately, and especially, gas supply can be started or stopped more accurately; and it is avoided that because the gas pressure changes, the working state of the engine is unstable, and switching between running modes is carried out frequently; andfurthermore, according to the dual-fuel mode display and communication method and system, no hardware alternation is carried out, the cost is low, and the performance of the engine is improved.

Description

technical field [0001] The invention relates to the technical field of dual-fuel engines, in particular to a dual-fuel mode display and communication method and system. Background technique [0002] When our marine dual-fuel engine is actually equipped, it has the real-time display function of diesel mode and dual-fuel mode, but different applications have different requirements for this function. For example: local ship inspection requirements: when the dual-fuel mode is displayed, there must be real gas participating in the combustion; customer requirements: in the dual-fuel mode, the gas injection should not be stopped due to gas pressure changes and errors should be reported, and the dual-fuel mode should be exited; security system requirements: When the engine needs to enter the dual-fuel mode, a signal is sent to the security guard, and the security system then turns on the gas intake. [0003] There are contradictions among the requirements of the three. For example,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D19/06F02B77/08F02D41/30
CPCF02B77/08F02D19/06F02D41/0025F02D41/30Y02T10/30
Inventor 尹晓青李杰
Owner WEICHAI HEAVY MACHINERY CO LTD
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