Flexible electric control valve, electric control fuel system and control method of electric control valve
A fuel system and flexible electricity technology, applied in electrical control, fuel injection control, charging system, etc., can solve the problems of high cost, complex mechanical structure, low control accuracy, etc., and achieve the effect of reducing load and reducing emissions
Active Publication Date: 2022-03-25
YAPP AUTOMOTIVE PARTS
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Problems solved by technology
[0003] The invention provides a flexible electric control valve, an electric control fuel system and a control method of the electric control valve, which solves the problems of complex mechanical structure, high cost and low control precision existing in the control of the existing high-pressure fuel tank, and can precisely control the fuel vapor pressure , as well as the storage and release of fuel vapor, reducing the load on the carbon tank and reducing emissions
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[0049] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.
[0050]The pressure relief structure for the current fuel tank control is complicated and the cost is high. At the same time, during filling, the circulation hole diameter cannot be changed for different fuel filling conditions. The invention provides a flexible electric control valve, an electric control fuel system and a fuel filling control method. The opening of the gas outlet is controlled by setting a sealing plug in the valve body of the electric control valve, so as to realize the control of fuel vapor emission. It solves the problems of complex mechanical structure, high cost and low control precision in the existing high-pressure fuel tank control, and can accurately control the fuel vapor pressure, sto...
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The invention provides a flexible electric control valve, an electric control fuel system and a control method of the electric control valve. The electric control valve comprises a shell, a driving mechanism, an ejector rod, a first sealing plug and a second sealing plug. The shell is provided with a first air vent, a second air vent and a third air vent, and the first sealing plug and the second sealing plug are arranged in the shell. The first sealing plug and the second sealing plug are connected to the ejector rod in series, the first sealing plug is used for blocking the second ventilation opening, and the second sealing plug is used for blocking the third ventilation opening. And the driving mechanism is used for driving the ejector rod to do telescopic motion, driving the first sealing plug to control the opening size of the second air vent and driving the second sealing plug to control the opening size of the third air vent. The pressure of the fuel steam and storage and release of the fuel steam can be accurately controlled, the load of the carbon tank is reduced, and emission is reduced.
Description
technical field [0001] The invention relates to the technical field of vehicle fuel tank control, in particular to a flexible electric control valve, an electric control fuel system and a control method for the electric control valve. Background technique [0002] Due to the increasingly stringent emission regulations, especially the emission standards of China VI and LV Ⅱ / Ⅲ, which introduce the refueling emission requirements of On-Board Refueling Vapor Recovery (ORVR), the fuel tank system structure becomes increasingly complex. The existing high-pressure fuel tank includes a fuel tank, a carbon tank, and an oil and gas control valve arranged between the carbon tank and the fuel tank. The oil and gas control valve should have three main functions: 1. Isolate the fuel tank and the carbon tank to prevent the fuel vapor in the fuel tank from entering the carbon tank; 2. When the inside of the fuel tank is too high or too low, pressure relief and air supply to ensure pressure...
Claims
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IPC IPC(8): F02M25/08F02D41/00
CPCF02M25/0836F02D41/004F02M2025/0845
Inventor 姜林高德俊吕昊苏卫东朱凯周传军
Owner YAPP AUTOMOTIVE PARTS