CN201240273Y

CN201240273Y - Complete electronic digital display self-luminescence type combined instrument for automobile

Info

Publication number: CN201240273Y
Application number: CNU2008200642713U
Authority: CN
Inventors: 刘贤仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-16
Filing date: 2008-07-16
Publication date: 2009-05-20
Anticipated expiration: 2018-07-16

Abstract

The utility model provides an automobile full-electronic digital display self-luminescent cluster gauge, which belongs to an intelligent gauge. The automobile full-electronic digital display self-luminescent cluster gauge comprises a filter circuit, a shaping circuit, a central processing unit, an analog digital display decryption drive circuit and a time sequence sharing circuit. An automatic display water temperature gauge, a fuel gauge, a voltage meter, an analog speedometer, an analog tachometer, a digital speedometer, a digital tachometer, a digital mileometer, a digital hydraulic braking pressure gauge and a digital oil circulation gauge are arranged on an instrument board. The utility model has the characteristics of full functions, visual display, accurate indicated values, high reliability and high visibility, which can reduce the hidden danger of car accidents, is favorable for safe driving and can provide conditions for the self-control of parameters of an entire automobile or an entire motorcycle. The automobile full-electronic digital display self-luminescent cluster gauge is applicable to various railway motor cars.

Description

Automobile all-electronin digital display Autoluminescence combination instrument

Technical field

The utility model relates to the automobile-use instrument, and the all-electronin digital display combination instrument that particularly is applied on automobile, the motor bike is made the field.

Background technology

Existing auto meter can be divided into machinery instrument and electronic instrument two big classes: machinery instrument adopts pointer to show, vibrating under the hot and humid degree environment, and there are short, defectives such as indication range is narrow, complex manufacturing technology in service life in unstable properties.Advantages such as along with development of electronic technology, electronic instrument is owing to have long service life, and compatible with environment is strong, be automobile, motor bike replace stem-winder move towards electronization must direction.The applicant is through research for many years, and (ZL93239300.4) and particularly " all-electronin Digital Combination Instrumentation " (ZL03249716.4) to have developed " all-electronin auto meter ".It is applied on the automobile, can safety, reliably, running car parameters such as display automobile speed, total/little mileage, engine speed, water temperature, amount of fuel intuitively and accurately.But, be used for from actual the making of customer requirements and several years, still exist some needs to be improved and perfect place, as, still lack to the demonstration of hydraulic vehicle brake system operation pressure and to the demonstration of engine lube system operation pressure; The normal operating pressure of hydraulic vehicle braking should be between 6～10MPa, if brake pressure is lower than 5MPa, automobile brake perfrmance is poor, increases accident risk, if brake pressure is higher than between the 10MPa, the danger of oil circuit booster can take place again.In the auto lubrication system, lubricating oil pump outlet oil pressure is too low, and the requirement of out of reach engine lubrication gently then influences the driving engine normal operation, and is heavy then burn out driving engine, too high as if the lubricating oil pump delivery pressure, then can increase the consumption of power of driving engine; And for example, exist configuration too high, increase cost, waste problem of resource selecting for use of micro controller system.

The utility model content

The purpose of this utility model provides the automobile all-electronin digital display Autoluminescence combination instrument of a kind of demonstration hydraulic braking operation pressure directly perceived and engine oil gallery operation pressure.

This later-model purpose is achieved in that a kind of automobile all-electronin digital display Autoluminescence combination instrument, comprise, gather the sensor of automobile water temperature, amount of fuel, the speed of a motor vehicle, rotating speed, receive the filter circuit of water temperature, amount of fuel sensor signal, receive the shaping circuit of the speed of a motor vehicle, signals of rotational speed sensor, and the central processing unit of accept filter circuit and shaping circuit output signal, simulation by the control of central processing unit output signal shows decoder driver circuit and numeric display decoder driver circuit, the timing distribution circuit that connects with central processing unit; Gauge panel is provided with water thermometer, fuel gage, volt meter, volt meter, simulation average speed indicator, simulation speed gage, digital average speed indicator, digital revmeter, digital mileage meter, the pressure sensor that also has the pressure sensor of gathering the hydraulic braking system for automobile operation pressure and gather electrical generator lubricating system oil main line operation pressure, the signal of this two pressure sensor inputs to central processing unit; Gauge panel is provided with digital hydraulic brake-pressure table and digital oil circulation gauge, and the two is two LED nixie displaies, and all is connected with described numeric display decoder driver circuit.

Compared with prior art, this later-model beneficial effect is:

1, make the function of LED combination instrument more complete

Adopt two LED nixie displaies, digital hydraulic brake-pressure table and digital oil circulation gauge on gauge panel, have been increased, make chaufeur can accurately understand the working condition of auto brake system and engine lube system in real time, help to improve traveling security.

2, satisfy customer requirements, do not increase manufacturing cost substantially, can also cost-cutting

Under the prerequisite that guarantees in-use performance, micro controller system selects for use the lower PIC16F676 of price to substitute original PIC16F872; Increased by two two LED nixie displaies on original combination instrument basis, from total aspect, manufacturing cost does not increase substantially, and cost is descended to some extent.

This product adopts advanced digital circuit, monolithic processor controlled microelectronic technique, the LED luminescent device shows, it is the regeneration product of traditional analog meter, have multiple functional, high reliability, intuitive display, accurate, the attractive in appearance luxurious characteristics of indicating value, simultaneously, be furnished with acousto-optic or audio alert, can reduce car accident hidden danger, help safe driving.

Description of drawings

Fig. 1 is this later-model front view;

Fig. 2 is the electric functional block diagram of instrument shown in Figure 1;

Fig. 3 is the circuit diagram of two LED nixie displaies being adopted of digital hydraulic brake-pressure table and digital oil circulation gauge shown in Figure 1.

The specific embodiment

Fig. 2 illustrates, this novel sensor of gathering automobile water temperature, amount of fuel, voltage, the speed of a motor vehicle, rotating speed that comprises, receive the filter circuit 5 of water temperature, amount of fuel sensor signal, receive the shaping circuit 6 of the speed of a motor vehicle, signals of rotational speed sensor, and the central processing unit 7 of accept filter circuit and shaping circuit output signal, simulation by the control of central processing unit output signal shows decoder driver circuit 8 and numeric display decoder driver circuit 9, the timing distribution circuit 10 that connects with central processing unit; Also illustrate among Fig. 2, power circuit 4, warning circuit 11 (containing buzzer phone and language alarm), total/little mileage commutation circuit 12 and back lighting circuit 13, illuminator circuit backlight adopts the LED light-emitting diode as illuminating source, and light-emitting diode is connected in the current supply circuit of micro controller system.Fig. 1 illustrates, gauge panel is provided with water thermometer 18, fuel gage 19, volt meter 17, simulation average speed indicator 1, simulation speed gage 21 and digital average speed indicator 14, digital revmeter 22, digital mileage meter 15, the pressure sensor that also has the pressure sensor of gathering the hydraulic braking system for automobile operation pressure and gather electrical generator lubricating system oil main line operation pressure, the signal of this two pressure sensor inputs to central processing unit 7; Gauge panel is provided with digital hydraulic brake-pressure table 2 (being designated as ABS among the figure) and digital oil circulation gauge 3 (being designated as YY among the figure), and the two is two LED nixie displaies, and all is connected with numeric display decoder driver circuit 9.Among Fig. 2, gauge panel also is provided with oil pressure gauge 16, volt meter 17, parking brake alarm lamp 20, left and right Cornering Lamp 23, headlight 24, charging indicator light 25, device with an automatic light meter 26, engine speed annunciator 27, total/little mileage meter 28.Central processing unit 7 adopts micro controller system PIC16F676.Numeral average speed indicator 14 and digital mileage meter 15 and digital revmeter 22 all adopt the LED nixie display.Instrument on the gauge panel all adopts the LED led lighting to show.As, the scale on the simulation speed gage 21 is as light belt, and the LED light-emitting diode illuminates light belt with display scale as light source.And for example, parking brake annunciator lamp 20, left and right Cornering Lamp 23 grades are indicator lamp, all adopt the LED led lighting to show.

Fig. 3 illustrates, the static display circuit of the LED of hardware decoding, the P1.4 of micro controller system～1.7 pin connect the input end of decoder driver (as 74LS47) respectively, and 7 mouths of decoder driver connect the pin of 7 sections LED charactrons respectively, and these 7 sections LED charactrons connect to be total to the anode mode.Certainly, also can select the 74LS49 decoder driver for use, then 7 sections LED charactrons connect by the common cathode mode.In addition, also can select software decoding static LED telltale or dynamic LED telltale or the like in this case for use.

This instrument is to adopt advanced microelectronic technique, electronic sensor technology, digital circuit, the new high-tech product that single-chip microcomputer control technology is developed into.

This instrument is display automobile, the motorcycle speed of a motor vehicle automatically, accumulative mileage, short distance mileage, amount of fuel, machine oil Amount, water temperature, voltage, engine oil pressure etc. Have good reliability, degree of accuracy height, function is many, and numeral shows The characteristics such as intuitively, outward appearance is luxurious. Use this instrument can reduce car accident hidden danger, help safe driving, prolong Long vehicle service life, make automobile become more luxurious, advanced, comfortable. Improve the automobile class, the increase automobile, The market competitiveness of motorcycle.

1, be higher than limit value when the speed of a motor vehicle, water temperature, fuel oil, oil level are lower than the regulation liquid level, and oil pressure, voltage are low In rated value, instrument all can automatic sound-light alarm or voice suggestion.

2, the speed of a motor vehicle is provided with numeral, (pointer is replaced in simulation) shown in the simulated dual representation, can show automobile's instant velocity, shows Intuitively, accurately, prevented that " misleading " driver from driving " hero " car and easily sending out accident.

3, the total kilometrage numeral is changeable with short mileage numeral, can show always, but still the accumulative mileage number; Reversing The time total kilometrage number do not subtract, still count mileage number. Instrument is pulled down rear total kilometrage and is provided with memory function.

4, voltmeter seems even more important, in case accumulator super-charge will take place for generator and adjuster imbalance Electricity and electrical appliance are crossed electricity and are damaged, or even the possibility of generation automobile " spontaneous combustion " is arranged, and this instrument has been arranged, accurately The prompting driver, can avoid this disaster, strengthen awareness of safety (being that auto-breaking ensures safety).

5, instrument is provided with an automatic light meter: when instrument display brightness (LED is as light source) can be with extraneous natural daylight Strong and weak automatically regulate clear display, soft, comfortable.

Claims

1, a kind of automobile all-electronin digital display Autoluminescence combination instrument, comprise, gather the sensor of automobile water temperature, amount of fuel, the speed of a motor vehicle, rotating speed, receive the filter circuit (5) of water temperature, amount of fuel sensor signal, receive the shaping circuit (6) of the speed of a motor vehicle, signals of rotational speed sensor, and the central processing unit (7) of accept filter circuit and shaping circuit output signal, simulation by the control of central processing unit output signal shows decoder driver circuit (8) and numeric display decoder driver circuit (9), the timing distribution circuit that connects with central processing unit (10); Gauge panel is provided with water thermometer (18), fuel gage (19), volt meter (17), simulation average speed indicator (1), simulation speed gage (21), digital average speed indicator (14), digital revmeter (22), digital mileage meter (15), it is characterized in that: the pressure sensor that also has the pressure sensor of gathering the hydraulic braking system for automobile operation pressure and gather electrical generator lubricating system oil main line operation pressure, the signal of this two pressure sensor inputs to central processing unit (7); Described gauge panel is provided with digital hydraulic brake-pressure table (2) and digital oil circulation gauge (3), and the two is two LED nixie displaies, and all is connected with described numeric display decoder driver circuit (9).

2, according to the described automobile all-electronin of claim 1 digital display Autoluminescence combination instrument, it is characterized in that: described central processing unit (7) adopts micro controller system PIC16F676.

3, according to claim 1 or 2 described automobile all-electronin digital display Autoluminescence combination instruments, it is characterized in that: described digital average speed indicator (14) and digital mileage meter (15) and digital revmeter (22) all adopt the LED nixie display.

4, according to the described automobile all-electronin of claim 3 digital display Autoluminescence combination instrument, it is characterized in that: described gauge panel also is provided with oil pressure gauge (16), volt meter (17), parking brake alarm lamp (20), left and right Cornering Lamp (23), headlight (24), charging indicator light (25), engine speed annunciator (27), total/little mileage meter (28).

5, according to the described automobile all-electronin of claim 4 digital display Autoluminescence combination instrument, it is characterized in that: described gauge panel is provided with device with an automatic light meter (26).

6, according to the described automobile all-electronin of claim 5 digital display Autoluminescence combination instrument, it is characterized in that: the instrument on the described gauge panel all adopts the LED led lighting to show.