High-precision fuel tank fuel quantity measuring device
A measuring device, high-precision technology, applied in the direction of measuring device, lubrication indicating device, liquid/fluid solid measurement, etc., can solve problems such as driving inconvenience, instability, fuel sloshing, etc., to improve measurement accuracy and avoid adverse effects Effect
Active Publication Date: 2014-05-14
GREAT WALL MOTOR CO LTD
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Problems solved by technology
When the vehicle is driving on relatively bad road conditions (such as turning, going up and down, etc.), the fuel in the fuel tank will shake, the liquid level stability is very poor, and the fuel quantity data output by the float fuel sensor will also have large errors. And it is very unstable, so that the user cannot accurately judge the amount of remaining fuel, causing inconvenience to driving and traveling
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Embodiment Construction
[0022] see figure 1 , the present invention mainly includes: a fuel gauge 11, a controller 5, an initial fuel quantity measurement part and a fuel consumption measurement part, the initial fuel quantity measurement part can calculate the fuel quantity of the fuel tank after refueling, and the fuel consumption measurement part is used for calculating The amount of oil consumed during the running of the car, and then the real-time oil amount can be obtained. The initial fuel quantity measurement part includes fuel tank cap switch 3, fuel tank pressure sensor 4, compressor 8, compressed air volume meter 9 and solenoid valve 10; the fuel consumption measurement part includes intake air quantity meter 6 and one-way solenoid valve 7.
[0023] Measurement of initial oil quantity
[0024] After refueling every time, the initial value of the oil quantity needs to be remeasured by using the air compressor 8 to press air into the mailbox to make the pressure in the fuel tank reach the s...
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A high-precision fuel tank fuel quantity measuring device comprises a fuel gauge, a controller, an initial fuel quantity measuring part and a fuel consumption measuring part. The initial fuel quantity measuring part comprises a fuel tank cap switch connected with the controller, a fuel tank pressure sensor, an air compressor, an air compression quantity gauge and a solenoid valve, an exhaust port of the air compressor is connected with the fuel tank, and the air compression quantity gauge and the solenoid valve are arranged on an air suction pipe of the air compressor. The fuel consumption measuring part comprises an air input quantity gauge connected with the controller and a one-way solenoid valve, the air input quantity gauge and the one-way solenoid valve are both arranged on an air inlet pipe of the fuel tank, the input end of the fuel gauge is connected with the fuel quantity data output end of the controller. The quantity of fuel in the fuel tank is calculated according to the volume of air in the fuel tank, the harmful effect caused by fuel liquid level fluctuation on measurement data is effectively avoided, therefore, the measuring precision of the fuel is greatly improved, and convenience is provided for a user to accurately judge the quantity of remaining fuel.
Description
technical field [0001] The invention relates to a device capable of accurately measuring the amount of fuel in an automobile fuel tank, belonging to the technical field of measurement. Background technique [0002] The fuel gauge is an instrument for measuring the oil quantity of an automobile, and the existing automobile fuel gauge generally adopts a float type fuel sensor. For example, the utility model patent application number 201020673149.3 discloses a fuel gauge liquid level sensor, which judges the amount of fuel according to the height of the liquid level. When the vehicle is driving on relatively bad road conditions (such as turning, going up and down, etc.), the fuel in the fuel tank will shake, the liquid level stability is very poor, and the fuel quantity data output by the float fuel sensor will also have large errors. And it is very unstable, so that the user cannot accurately judge the amount of remaining oil, causing inconvenience to driving and traveling. ...
Claims
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IPC IPC(8): G01F23/00
Inventor 黄勇王雨川史振中李飞
Owner GREAT WALL MOTOR CO LTD