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Method and device for acquiring fuel quantity data in fuel tank of vehicle

A technology of fuel tank and fuel volume, applied in the direction of buoy liquid level indicator, etc., can solve the problem of difficult to control the fuel consumption cost of transport vehicles, and achieve the effect of reducing fuel consumption cost and power consumption

Active Publication Date: 2012-08-08
XIAMEN YAXON NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is generally difficult for logistics companies to control the actual fuel consumption costs of transport vehicles

Method used

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  • Method and device for acquiring fuel quantity data in fuel tank of vehicle
  • Method and device for acquiring fuel quantity data in fuel tank of vehicle
  • Method and device for acquiring fuel quantity data in fuel tank of vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0037] The circuit block structure of an embodiment of the device for collecting fuel quantity data in the vehicle fuel tank in the present invention, as figure 2 shown. The device has: a CPU, a car power supply 1, an ACC control switch K1 driven by a car key, a fuel gauge 2, a reverse isolator 3 composed of a diode or a relay, a fuel gauge signal line 4, a rheostat The oil float sensor 6 of R6, a sampling circuit 7, an auxiliary power controller 8 and a stabilized power supply 9. Wherein, the ACC control switch K1 adopts the ACC control switch used in existing vehicles. The oil float sensor 6 having a rheostat R6 is a conventional product, and is installed in the fuel tank 5 of the vehicle.

[0038] The automobile power supply 1 directly supplies power to the regulated power supply 9, and the first output terminal VCC1 of the regulated power supply 9 provides a DC power supply with a voltage of +5 volts to the power input terminal VC1 of the CPU; the second output terminal...

Embodiment 2

[0063] The circuit block structure of the second embodiment of the device for collecting fuel quantity data in the vehicle fuel tank of the present invention, as Figure 7 shown. In this embodiment, the structure of the existing vehicle ACC control switch is changed. This embodiment has: a CPU, a car power supply 1, an ACC control switch K10-1 driven by the car key, an ACC control switch K10-1 linkage and a second switch K10-2 with opposite opening and closing states, and an oil gauge 2. A reverse isolator 30 composed of a diode or a relay, an oil gauge signal line 4, an oil float sensor 6 with a rheostat R6, a sampling circuit 7, an auxiliary power controller 80 and a stabilized power supply 9. Wherein, the oil float sensor 6 with rheostat R6 is a conventional product, and is installed in the fuel tank 5 of the vehicle.

[0064] The automobile power supply 1 directly supplies power to the regulated power supply 9, and the first output terminal VCC1 of the regulated power su...

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Abstract

The invention relates to a method and a device for acquiring fuel quantity data in a fuel tank of a vehicle. In the method, the process of acquiring the fuel quantity data when the vehicle is in the running state comprises the following steps that: an automobile power supply supplies power to a central processing unit (CPU) through a regulated power supply, an adaptive cruise control (ACC) switchis switched on, and the automobile power supply supplies power to a fuel float sensor through the ACC switch and a fuel gauge; and the CPU intermittently acquires fuel level signals output by the fuel float sensor, converts the fuel level signals into digitalized fuel quantity data and corresponding acquisition time data and stores the digitalized fuel quantity data and the corresponding acquisition time data. In the method, the process of acquiring the fuel quantity data when the vehicle is in the stopping state comprises the following steps that: the automobile power supply supplies power to the CPU through the regulated power supply and the ACC switch is switched off; the automobile power supply supplies power to an auxiliary power supply controller through the regulated power supply; and the CPU intermittently controls the auxiliary power supply controller to supply power to the fuel float sensor, synchronously acquires the fuel level signals in the fuel tank, converts the fuel level signals into the digitalized fuel quantity data and the corresponding acquisition time data and stores the digitalized fuel quantity data and the corresponding acquisition time data. By the method, the fuel quantity data in the fuel tank when the vehicle is in the running state and the stopping state can be provided.

Description

technical field [0001] The invention relates to a device for collecting vehicle fuel volume data under the control of a CPU. Background technique [0002] In today's society, a large part of the cost in the logistics industry is the fuel consumption cost of logistics transportation vehicles. In the prior art, in order to enable drivers and managers to know the oil level in the fuel tank of the vehicle at any time while the vehicle is running, each transport vehicle is provided with a device for detecting changes in the oil level in the fuel tank. For the structure of the device see figure 1 , an oil float sensor 6' with rheostat R6' is installed in the fuel tank 5' of the automobile. The automobile power supply 1' is connected to one end of the ACC control switch K1'; the other end of the ACC control switch K1' is connected to the positive terminal 21' of the automobile fuel gauge 2'; the negative terminal 22' of the fuel gauge 2' is connected to the fuel gauge signal line...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/30
Inventor 汤益明刘恩福蔡运文陈从华杨磊
Owner XIAMEN YAXON NETWORKS CO LTD
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