Comprehensive measuring system for directly measuring oil consumption of vehicle fuel

Abstract

The invention provides a comprehensive measuring system for directly measuring the fuel oil quantity and oil consumption of vehicle fuel, and aims at providing the comprehensive measuring system with the advantages that the rest oil quantity, the real-time oil consumption value, the total oil consumption and the oil consumption rate per 100km of vehicles can be continuously detected and displayed, and the measurement of the fuel oil quantity and the oil consumption is precise and accurate. The comprehensive measuring system is realized through the technical scheme that an excitation source circuit of a signal conversion assembly (2) preprocesses the current oil quantity and consumption data signals collected by an oil quantity sensor assembly (1) and a consumption sensor assembly (11) through a calculation center (4) and a signal receiving assembly (3), received flow rate signals and capacitance signals are converted into standard voltage value signals or current value signals, then, the signals enter the calculation center (4) through an input and output interface (5), and the preprocessed signals are processed again, are sampled by an A / D (analog to digital) converter in the calculation center (4) and are then transmitted to a display unit or are uploaded to a host computer after being transmitted to a single chip microcomputer in the calculation center to be treated by calculation program software.

Description

technical field [0001] The invention relates to a comprehensive measurement system mainly used for measuring the remaining liquids such as gasoline, diesel oil and alcohol in the vehicle fuel tank and the real-time fuel consumption of the vehicle. Background technique [0002] Generally, the function of measuring and displaying the remaining fuel quantity of vehicles is very simple, and generally it is an analog pointer instrument that can only roughly display the fuel quantity. like Figure 6 The traditional vehicle remaining oil measurement system shown mostly adopts contact measurement. The measurement systems used in the prior art mainly include float variable resistance sensors and magnetic induction sensors. And most of the measurement of the oil quantity in the vehicle fuel tank still adopts the traditional float variable resistance sensor method. For example, the float variable resistance liquid level sensor used in the Toyota Crown sedan has a float connected to a...

AI Technical Summary

Problems solved by technology

Moreover, it is impossible to continuously and accurately measure the fuel quantity and display the remaining fuel quantity of the mileage, and it also does not have the measurement of the instantaneous fuel consumption rate and the fuel consumption rate per 100 kilometers and the detection of the refueling quantity.

[0004] Almost all analog fuel gauges cannot display the full range linearly, so there is a problem that the display range cannot cover the full range and the display is not accurate enough

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