CN2434649Y

CN2434649Y - Metering digital displaying fuel yauge for motor vehicle

Info

Publication number: CN2434649Y
Application number: CN 00244046
Authority: CN
Inventors: 李长刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-03
Filing date: 2000-08-03
Publication date: 2001-06-13
Anticipated expiration: 2010-08-03

Abstract

The utility model relates to a fuel oil gauge in a metering digital displaying type for a motor vehicle. The utility model is mainly composed of a housing with an oblong structure, and a machine core, wherein, the machine core is mainly composed of a fuel oil senor, a sensing signal amplifying converter, a quantification controller, and a metering digital display. The utility model is characterized in that the quantification controller is a single chip type processor with a micro computer, and a processed signal is transmitted to the metering digital display by the single chip type processor with a micro computer; a light-emitting diode is adopted for metering digital display. The utility model has the advantages of high metering precision, accurate quantity grade, visual, stable, and reliable reading, accurate measure and display, power consumption saving, etc.

Description

Motor vehicle quantifying numeral shows fuel gauge

The utility model belongs to quantifying electric detective technology field, specially refers to motor vehicle quantifying numeral and shows fuel gauge.It is applicable to various motor vehicles, as the fuel gauge of vehicles such as automobile, motorcycle.

At present, motor vehicle generally uses the dial type pointer instrument of machinery.The store oil amount in the fuel tank can only be measured and indicate to this instrument, energy measurement and indication do not add up the volume read-out of fuel consumption and oiling, and there is not concrete quantity when showing, can only indicate its scope roughly, the index error that actual fuel oil and oil meter are measured is big, nonlinear distortion big (shown in b curve in the accompanying drawing 3), power consumption are many synchronously, also has problems such as voltage height, electric current on line sensor is big.In order to overcome the technical deficiency part of above-mentioned instrument, show fuel gauge for developing a kind of motor vehicle quantifying numeral, be very necessary.

The purpose of this utility model: provide a kind of motor vehicle quantifying numeral to show fuel gauge, solving motor vehicle uses the quantifying numeral to show the fuel oil instrument, have the measuring accuracy height, adopt diode displaying and be that the decimal system of unit shows fuel amount with litre or kilogram, the quantity grade is accurate, reading is directly perceived, reliable and stable, measure exactly and show, and advantage such as power consumptive province.

The utility model is realized according to following technical proposals: a kind of motor vehicle quantifying numeral shows fuel gauge, mainly formed by shell and movement two parts of a rectangle structure, movement is mainly by fuel sensor, the transducing signal amplification converter, quantization controller, the metering digital indicator, power pack of this machine and range are adjusted the potentiometer part and are formed, it is characterized in that quantization controller is a monolithic type micro processor, signal after handling is sent to the metering digital indicator, and adopting a luminous utmost point pipe to show for the metering numeral, micro processor is connected between transducing signal amplification converter and the metering digital indicator.In rectangle structure shell back two gib screws are installed.

Advantage of the present utility model:, make fuel gauge quantifying, digitizing owing to adopt micro processor; Metering precision height, metering digital indicator adopt the light emitting diode numeral to show, and are that the tens digit of unit shows fuel amount with litre or kilogram, and the quantity grade is accurate, and reading is directly perceived, and is reliable and stable; Adopt the combination of micro processor hardware and software, executive routine refuels scheme, when oil level is lower than ultimate value in the fuel tank, all can guarantees to measure exactly and shows and report to the police (shown in Fig. 3 a curve); Simple for structure, installation and easy to operate and help applying.

Further specify embodiment below in conjunction with accompanying drawing.

Description of drawings:

Fig. 1 is the contour structures synoptic diagram of the utility model fuel gauge.

Fig. 2 is the cassette mechanism structure schematic diagram of the utility model fuel gauge.

Fig. 3 a is the curve map that the quantifying numeral shows fuel gauge and actual fuel oil.

Fig. 3 b is the curve map of mechanical type fuel gauge and actual fuel oil.

Wherein: Fig. 3 a curve is the linearity curve relation, and Fig. 3 b curve is the nonlinear curve relation.a ₁, b ₁Be actual fuel oil number, a ₂, b ₂Be respectively numeral demonstration, mechanical type displayed value.

The utility model utilizes fuel sensor (1) to detect the signal of actual fuel oil, sends transducing signal amplification converter (2) to and amplifies, and transducing signal amplification converter (2) adopts IC ₁Digital integrated circuit CA5565, and the signal after will amplifying carries out voltage, frequency inverted, and each detectable voltage signals is converted to the correspondent frequency signal, frequency signal sent to quantization controller (3) again, quantization controller (3) is a monolithic type computer processor, and it adopts IC ₂Single-chip microcomputer PIC16C54, the frequency signal that it sends prime here, in the corresponding levels, carry out quantification treatment, quantified controlling in the corresponding levels will be controlled by inner software executive routine, frequency signal after will quantizing at last converts digital signal to, is shown with digital form by metering digital indicator (4), understands the interior fuel amount of car at any time for the user, (5) be the power pack of this machine, adopt IC ₃The power supply integrated regulator can reliablely and stablely be worked to guarantee the quantifying fuel gauge, and potentiometer (6) is for adjusting the fuel gauge measurement range.Wherein quantization controller (3) is a monolithic type micro processor, and metering digital indicator (4) adopts light emitting diode to show for metering.More than used electronic devices and components be commercial prod.

Claims

1. a motor vehicle quantifying numeral shows fuel gauge, mainly formed by shell (I) and movement (II) two parts of a rectangle structure, movement is mainly by fuel sensor (1), transducing signal amplification converter (2), quantization controller (3), metering digital indicator (4), power pack of this machine (5) and range are adjusted potentiometer (6) part and are formed, it is characterized in that quantization controller is a monolithic type micro processor, adopt single-chip microcomputer PIC16C54, signal after handling is sent to the metering digital indicator, and adopt a luminous utmost point pipe to show for the metering numeral, micro processor is connected between transducing signal amplification converter (2) and the metering digital indicator (4), and transducing signal amplification converter (2) adopts digital integrated circuit CA5565.

2. numeral according to claim 1 shows fuel gauge, it is characterized in that, in rectangle structure shell (I) back two gib screws is installed.