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Fuel balance measurement method and system

A measurement method and measurement system technology, applied in the field of LNG passenger cars, can solve problems such as inaccurate and unsolvable fuel remaining measurement

Active Publication Date: 2017-11-14
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for measuring the remaining fuel level to solve the problem that the existing methods cannot solve the problem of inaccurate measurement of the remaining fuel due to fuel reduction and vehicle shaking

Method used

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  • Fuel balance measurement method and system

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Embodiment Construction

[0030] Embodiment of Fuel Remaining Measurement System

[0031] like figure 1 , figure 2 A fuel remaining measurement system shown includes a fuel container 1, such as a gas cylinder, whose front end is rotatably assembled on the vehicle body and whose rear end is fixed, and a pressure sensor 2 is arranged at the rear end. Specifically, there are four tripods under the gas cylinder, which are respectively arranged at the four symmetrical corners of the gas cylinder. The two tripods on the left are in the form of hinges, and the two tripods on the right are controlled by pressure sensors 2 (a total of 2 ) instead. The measured values ​​of the two pressure sensors are F1 and F2 respectively.

[0032] In this embodiment, the container is placed on the frame or the upper part of the associated installation structure, so a pressure sensor is provided. If the installation method in the Chinese patent of 200410088211.1 is adopted, a tension sensor needs to be provided. Obviously...

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Abstract

The invention relates to a fuel residue measurement method and system. The method comprises steps as follows: 1), accelerations of a fuel container in X, Y and Z directions are detected, and barycentric coordinates corresponding to acceleration values are acquired by inquiring acceleration-barycenter position data; the X direction is the front-back direction, the Y direction is the left-right direction, the Z direction is the vertical direction, and the acceleration-barycenter position data are obtained through experiments; 2), a rotating assembly position is taken as a pivot, and a gravity moment arm is determined according to the barycentric coordinates; the gravity of the fuel container and the fuel in the fuel container is calculated according to a torque balance relation in combination of pressure / tensile force values obtained through measurement; 3), the mass of the fuel container and fuel in the fuel container is calculated according to the gravity and the current gravitational acceleration. The fuel residue measurement method and system are used for solving the problem that the fuel residue measurement is inaccurate due to fuel reduction and vehicle shaking when a conventional method is adopted.

Description

technical field [0001] The invention relates to a method and a system for measuring the remaining fuel quantity, which are especially suitable for LNG passenger cars adopting weighing measurement. Background technique [0002] The traditional LNG bus fuel balance measurement system is a capacitive liquid level measurement system. Its principle is to install a capacitive liquid level sensor in the LNG cylinder, and the change of the LNG liquid level in the gas cylinder can cause the internal capacitance value of the liquid level sensor to change. Change the relationship to calculate the remaining amount of fuel. For example, Chinese patent document CN203957893U, a heavy-duty vehicle LNG fuel residual detection and display device, discloses a detection method for measuring the liquid level by a liquid level sensor to measure the LNG fuel residual. [0003] The problems of this LNG passenger car fuel balance measurement system are: due to the large measurement error of the cap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G19/08
Inventor 冯超汪祥亮冯芳龙
Owner ZHENGZHOU YUTONG BUS CO LTD