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Vehicle dual-fuel system operation control method and system

A fuel system and operation control technology, applied in the direction of charging system, engine control, combustion engine, etc., can solve the problems of low fuel temperature and difficult starting of vehicles

Pending Publication Date: 2021-08-20
宁波华工热控科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a vehicle dual-fuel system operation control method to solve the problem that the vehicle is difficult to start due to low fuel temperature;

Method used

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  • Vehicle dual-fuel system operation control method and system
  • Vehicle dual-fuel system operation control method and system
  • Vehicle dual-fuel system operation control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] like figure 1 As shown, a method for controlling the operation of a vehicle dual-fuel system in the present invention comprises the steps of:

[0055] S1. Obtain the ignition signal of the vehicle and check the state of the heating solenoid valve;

[0056] S2. According to the temperature of the main fuel tank and the ambient temperature, it is judged that the vehicle uses the fuel from the main fuel tank or the fuel from the auxiliary fuel tank to supply the transmitter to work;

[0057] S3. When the auxiliary fuel tank is used to supply the transmitter, use antifreeze to heat the fuel in the main fuel tank until the temperature of the main fuel tank is greater than or equal to the preset initial temperature of the fuel in the main fuel tank;

[0058] S4. Execute the switching control process of the reversing valve, and switch the oil supply through the reversing valve;

[0059] S5. When the main fuel tank fuel supply engine is used to work, execute the main fuel tank ...

Embodiment 2

[0085] like Figure 5 As shown, a vehicle dual fuel system operation control system of the present invention includes:

[0086] The start-up and status check module is used to obtain the vehicle ignition signal and check the status of the heating solenoid valve;

[0087] The fuel supply judging module is used to judge whether the vehicle uses the main fuel tank fuel or the auxiliary fuel tank fuel supply transmitter to work according to the temperature of the main fuel tank and the ambient temperature;

[0088] The main fuel tank fuel heating control module is used to heat the main fuel tank fuel through antifreeze until the main fuel tank temperature is greater than or equal to the preset When the auxiliary engine is working, perform the fuel heating process of the main fuel tank and continue to supply the engine;

[0089] The reversing control module is used to execute the switching control process of the reversing valve, and switch the oil supply through the reversing val...

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Abstract

The invention belongs to the technical field of vehicle fuel supply control, and provides a vehicle dual-fuel system operation control method. The vehicle dual-fuel system operation control method comprises the following steps that a vehicle ignition signal is acquired, and the state of a heating electromagnetic valve is checked; according to the main oil tank temperature and the environment temperature, whether the vehicle adopts main oil tank fuel oil or auxiliary oil tank fuel oil to supply an engine to work is judged; a reversing valve switching control process is executed, and oil supply switching is conducted through a reversing valve; when the main oil tank fuel oil is used for the engine to work, the main oil tank fuel oil heating process is executed, and the engine is continuously supplied for work; and when the flameout signal is obtained, a reversing valve flameout control flow is executed until the vehicle is completely flameout. The invention further provides a vehicle dual-fuel system operation control system which has the advantages that the fuel temperature of the main fuel tank is detected in real time, the control process is switched through the reversing valve to switch fuel supply of the main fuel tank and the auxiliary fuel tank, and corresponding alarm is given through a panel to remind a user when a fault occurs.

Description

technical field [0001] The invention relates to the technical field of vehicle fuel supply control, in particular to a method and system for controlling the operation of a dual fuel system of a vehicle. Background technique [0002] At present, cars have become an indispensable means of transportation in our daily life. However, due to the viscosity-temperature characteristics of diesel, that is, the viscosity of oil changes with temperature, if a vehicle that uses diesel as engine fuel uses low-grade diesel, the diesel in the fuel tank will often thicken due to temperature. In turn, the filter screen and oil pipe will be blocked, which will cause the vehicle to have troubles such as difficulty in starting. In this case, it is necessary to heat the diesel in the fuel tank to restore the flow of diesel. Contents of the invention [0003] The purpose of the present invention is to provide a vehicle dual-fuel system operation control method to solve the problem that the veh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D19/06F02N19/04F02M31/16
CPCF02D19/06F02N19/04F02M31/16Y02T10/30
Inventor 王腾丁平
Owner 宁波华工热控科技有限公司
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