CN2436353Y - Instrument and meter for vehicle - Google Patents
Instrument and meter for vehicle Download PDFInfo
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- CN2436353Y CN2436353Y CN 00248056 CN00248056U CN2436353Y CN 2436353 Y CN2436353 Y CN 2436353Y CN 00248056 CN00248056 CN 00248056 CN 00248056 U CN00248056 U CN 00248056U CN 2436353 Y CN2436353 Y CN 2436353Y
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- auto meter
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- 238000007493 shaping process Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000011664 signaling Effects 0.000 claims description 7
- 230000035939 shock Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
一种电子指针式车速里程、发动机转速车用仪表,其属于汽车电子技术领域。该车用仪表由于表头内装有十字交叉绕制的二组线圈,控制电路主要由信号输入电路、单片机、信号输出电路、报警电路、计数器和外部看门狗电路组成,使得这种仪表表头的指针能在360度范围内示值,指示精度高,并且不随使用年限而变化,抗振动、耐温防污、抗电压冲击和电磁干扰,车速里程表、发动机转速表既可独立使用,也可组合使用,特别适应复杂车况和恶劣道路条件下使用的各种车辆。
An electronic pointer type vehicle speed mileage and engine speed vehicle instrument belongs to the technical field of vehicle electronics. The vehicle instrument is equipped with two sets of cross-wound coils in the meter head, and the control circuit is mainly composed of signal input circuit, single-chip microcomputer, signal output circuit, alarm circuit, counter and external watchdog circuit. The pointer can display value within 360 degrees, with high indication accuracy, and it does not change with the service life. It is resistant to vibration, temperature and pollution, voltage shock and electromagnetic interference. The speedometer and engine tachometer can be used independently or Used in combination, it is especially suitable for various vehicles used under complex vehicle conditions and harsh road conditions.
Description
A kind of electronic pointer type vehicle speed mileage, engine speed auto meter, it belongs to technical field of automotive electronics.
Traditional mechanical type car speed mileage table owing to rely on the flexible axle transmission, therefore causes the instrument indication unstable, and precision is low, shortcomings such as poor reliability.And existing electronic type car speed mileage table relies on private circuit to convert sensor pulse signal to voltage signal to come the rotation of table-drive axle, the therefore inevitable lower-speed state instability that produces, shortcoming such as function is few.
The purpose of this utility model is: the auto meter of developing a kind of multi-functional, high reliability, measured signal is directly inputted in the micro controller system goes, after one chip microcomputer was handled signal, the output pulse width modulation signal rotated through the pointer that amplifies, driving circuit drives on the gauge outfit.This meter hand deflection angle can be chosen wantonly in 0～360 ° of scope, has eliminated the low jitter phenomenon of pointer, very is suitable for the free-standing separately instrument of car speed mileage table and engine speed indicator, or both combination instruments of fitting together.
Technical solution of the present utility model is: a kind of auto meter, it mainly is made up of pointer, dial plate, LGP, gauge outfit, watchcase, illuminating lamp, wiring board and lead-in wire, and the incoming signal via line plate of external sensor amplifies the back and drives pointer indication value by gauge outfit.Special character of the present utility model is: above-mentioned gauge outfit mainly is made up of housing, upper skeleton, lower skeleton, magnetic cylinder, rotating shaft, coil and disk, two groups of coils with right-angled crossing on the skeleton of shaft axis direction.Above-mentioned wiring board mainly is input to the micro controller system of being made up of signaling conversion circuit and counting frequency dividing circuit to the signal of sensor through filtering shaping circuit, through driving circuit output signal is delivered to the coil winding sum counter by micro controller system again, be electrically connected between each circuit and form car speed mileage table and engine speed indicator combined control circuit.
Micro controller system in the above-mentioned wiring board also is electrically connected with driving circuit, annunciator and outer watchdog circuit.
The model of above-mentioned micro controller system is Z86E04, and the integrated package that it is LM324 that two actuators of output share a model adopts the LM358 integrated package in the outer watchdog circuit.
Only adopt signaling conversion circuit and counting frequency dividing circuit, driving circuit, the coil winding sum counter of car speed sensor, filtering shaping circuit, micro controller system to be electrically connected the control circuit of forming car speed mileage table.
Only adopt signaling conversion circuit, driving circuit and the coil winding of engine speed sensor, filtering shaping circuit, micro controller system to be electrically connected the control circuit of forming engine speed indicator.
The guiding theory of above-mentioned technical solution is: on the skeleton of shaft axis direction, the pointer that is beneficial to gauge outfit can rotate in 360 degree scopes with right-angled crossing for two groups of coils in gauge outfit.The groundwork of control circuit is: by two road initialize signals that car speed sensor and engine speed sensor provided, amplify through aerotron, filter shape is input to the input port of micro controller system Z86E04, after carrying out data handing by micro controller system, export four road pulse-width signals at P24, P25, P26, P27 delivery port, export four road aanalogvoltages through the four high guaily unit integrating amplification circuit, drive the speed of a motor vehicle, the rotating speed gauge outfit formed by two groups of coils respectively.The effect of outer watchdog circuit is: when the micro controller system normal operation, export one road square-wave signal by the P00 mouth, when in case system is subjected to outside strong jamming, the micro controller system cisco unity malfunction, the P00 mouth just can not be exported square-wave signal, at this moment this circuit just vibrates, and the power vd D that offers micro controller system produces the saltus step that resets, and micro controller system just can be reworked.Adopting the counting machine driving circuit is to count frequency division for the pulse that is produced by vehicle speed signal by micro controller system, count down to certain numerical value after, by pulse of mouth P23 output, come actuation counter to walk a word through field effect transistor.Above-mentioned control circuit, micro controller system Z86E04 can be used for vehicle speed mileage gauge outfit and engine speed gauge outfit simultaneously, also can only be used for vehicle speed mileage gauge outfit or engine speed gauge outfit.
Effect of the present utility model is: this auto meter is owing to be equipped with two groups of coils of right-angled crossing coiling in the gauge outfit, control circuit mainly is made up of signal input circuit, micro controller system, signal output apparatus, counting machine, warning circuit and outer watchdog circuit, make the pointer of this auto meter gauge outfit in 360 degree scopes, to rotate, the pointing accuracy height, and not with changing tenure of use, anti-vibration, anti-wide temperature change, anti-dirt influences, reactance voltage impacts and electromagnetic interference, adapt to complicated vehicle condition and the use down of abominable road conditions especially.Car speed mileage table, engine speed indicator both can independently use, and also can be used in combination, and can extensively satisfy the requirement of various vehicles.
Description of drawings:
Accompanying drawing 1 is a kind of gauge outfit front elevation of auto meter.
Accompanying drawing 2 is gauge outfit birds-eye vieies of a kind of auto meter.
Accompanying drawing 3 is circuit block diagrams of a kind of auto meter.
Accompanying drawing 4 is control circuit figure of a kind of auto meter.
Accompanying drawing 5 is a kind of car speed mileage table and engine speed indicator sectional construction figure.
Accompanying drawing 6 is a kind of car speed mileage table and engine speed indicator compound type outside drawing.
Accompanying drawing 7 is a kind of car speed mileage table constructionals drawing.
Accompanying drawing 8 is a kind of car speed mileage table outside drawings.
Accompanying drawing 9 is a kind of engine speed indicator constructionals drawing.
Accompanying drawing 10 is a kind of engine speed indicator outside drawings.
Be embodiment of the present utility model below, description and accompanying drawing by to this embodiment provide details of the present utility model.
Fig. 1 is a kind of gauge outfit front elevation of auto meter.Fig. 2 is a kind of gauge outfit birds-eye view of auto meter.In Fig. 1,2, earlier the magnetic cylinder (5) that passes rotating shaft (6) is placed the upper skeleton (2) of right-angled crossing coil rack and the inner chamber (4) that lower skeleton (3) forms when lumping together, then disk (8) (9) (10) (11) is attached to respectively around the outside of joint portion in the middle of the skeleton, on the axis direction of rotating shaft (6) coil (7a) and coil (7b) with right-angled crossing on skeleton, be placed in the housing (1) being wound with coil (7a) skeleton (7b) at last, frame assembly and housing (1) be fastened on the wiring board (19) with four screws (12).
Fig. 3 is a kind of circuit block diagram of auto meter.Fig. 4 is a kind of control circuit figure of auto meter.In Fig. 3,4, car speed sensor (21) is connected with filtering shaping circuit (22) through socket, and by aerotron N5, resistance R 11～R14 is connected with micro controller system (a 23) mouthful P32 with the filtering shaping circuit (22) that capacitor C 4 is formed.Engine speed sensor (28) is connected with filtering shaping circuit (29) through socket, by aerotron N6, and resistance R 15～R18, capacitor C 5 is connected with micro controller system (a 23) mouthful P31 with the filtering shaping circuit (29) that chemical capacitor E6 forms.Driving circuit (24) is by aerotron N1, N2, amplifier U1:A, U1:B, and resistance R 1,1R2, R5, R6, R34, R35, chemical capacitor E1, E2 form, and mouthful P24, a P25 are connected to come drive coil winding (25) with micro controller system (23), i.e. L1, L2 coil.In like manner, driving circuit (30) is by aerotron N3, N4, amplifier U1:C, U1:D, and resistance R 3, R4, R7, R8, R36, R37, chemical capacitor E3, E4 form, and mouthful P26, a P27 are connected to come drive coil winding (31) with micro controller system (23), i.e. L3, L4 coil.The model of micro controller system (23) is Z86E04.The integrated package that it is LM324 that driving circuit (24) (30) share a model.L1, L2 coil are to be contained in the gauge outfit of car speed mileage table, and L3, L4 coil are to be contained in the gauge outfit of engine speed indicator.Signaling conversion circuit (23a) (23c) is comprised by micro controller system (23) is inner with counting frequency dividing circuit (23b).Outer watchdog circuit (34) is by aerotron N7, N8, amplifier U3:A, U3:B, and resistance R 23～R31, capacitor C 6, C7, regulator block V1 forms, and a mouthful P00 is connected with micro controller system (23).Amplifier U3:A, U3:B adopt the LM358 integrated package.The counting circuit that the driving circuit of being made up of resistance R 19 and R20, field effect transistor M1, diode D1 and coil L5 (26) connects to form by socket and counting machine (27), a mouthful P23 is connected with micro controller system (23).The driving circuit (32) and the buzzer phone S1 that are made up of resistance R 21 and R22, field effect transistor M2 form warning circuit, and P02 is connected with the micro controller system mouth.Crystal oscillator C1, capacitor C 2 and C3 form micro controller system (23) outer clock circuit.The power supply of being made up of diode D2, resistance R 32, pizo-resistance R3, capacitor C 8, chemical capacitor E5, regulator block V2 is connected with the shaping control circuit through interface Vcc.
Fig. 5, the 6th, a kind of car speed mileage table and engine speed indicator sectional construction figure and outside drawing.Fig. 7, the 8th, a kind of constructional drawing of car speed mileage table and outside drawing.Fig. 9, the 10th, a kind of constructional drawing of engine speed indicator and outside drawing.In Fig. 5,6,7,8,9,10, gauge outfit (16) and illuminating lamp (18) all are contained on the wiring board (19), the rotating shaft of gauge outfit (16) is loaded onto Light conducting pointer (13a) (13b) after passing the dial plate (14) of LGP (15) and printing opacity, pointer (13a) is the pointer of car speed mileage table, pointer (13b) is the pointer of engine speed indicator, above-mentioned parts all are placed in the watchcase (17), and wiring board (19) joins by lead-in wire (20) and each sensor.
Claims (5)
1, a kind of auto meter, it is mainly by pointer (13), dial plate (14), LGP (15), gauge outfit (16), watchcase (17), illuminating lamp (18), wiring board (19) and lead-in wire (20) are formed, the incoming signal via line plate (19) of external sensor amplifies the back and drives pointer indication value by gauge outfit (16), of the present utility model being characterised in that, above-mentioned gauge outfit (16) is mainly by housing (1), upper skeleton (2), lower skeleton (3), magnetic cylinder (5), rotating shaft (6), coil (7a) (7b) and disk (8) (9) (10) (11) form, coil (7a) and coil (7b) with right-angled crossing on the skeleton of rotating shaft (6) axis direction, above-mentioned wiring board (19) mainly is input to the signal of sensor (21) (28) by signaling conversion circuit (23a) (23c) and the micro controller system (23) formed of counting frequency dividing circuit (23b) through filtering shaping circuit (22) (29), through driving circuit (24) (26) (30) output signal is delivered to coil winding (25) (31) sum counter (27) by micro controller system (23) again, be electrically connected between each circuit and form car speed mileage table and engine speed indicator combined control circuit.
According to the described auto meter of claim 1, it is characterized in that 2, the micro controller system (23) in the above-mentioned wiring board (19) also is electrically connected with driving circuit (32), annunciator (33) and outer watchdog circuit (34).
According to the described auto meter of claim 2, it is characterized in that 3, the model of above-mentioned micro controller system (23) is Z86E04, the integrated package that it is LM324 that driving circuit (24) (30) share a model adopts LM358 integrated fast in the outer watchdog circuit.
4, according to the described auto meter of claim 3, it is characterized in that, only adopt the signaling conversion circuit (23a) of car speed sensor (21), filtering shaping circuit (22), micro controller system (23) and counting frequency dividing circuit (23b), driving circuit (24) (26), coil winding (25) sum counter (27) to be electrically connected the control circuit of forming car speed mileage table.
5, according to the described auto meter of claim 3, it is characterized in that, only adopt signaling conversion circuit (23c), driving circuit (30) and the coil winding (31) of engine speed sensor (28), filtering shaping circuit (29), micro controller system (23) to be electrically connected the control circuit of forming engine speed indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00248056 CN2436353Y (en) | 2000-08-27 | 2000-08-27 | Instrument and meter for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00248056 CN2436353Y (en) | 2000-08-27 | 2000-08-27 | Instrument and meter for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2436353Y true CN2436353Y (en) | 2001-06-27 |
Family
ID=33606816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00248056 Expired - Fee Related CN2436353Y (en) | 2000-08-27 | 2000-08-27 | Instrument and meter for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2436353Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685027B (en) * | 2002-09-20 | 2011-07-20 | 矢崎总业株式会社 | Dial module and meter employing the same |
-
2000
- 2000-08-27 CN CN 00248056 patent/CN2436353Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685027B (en) * | 2002-09-20 | 2011-07-20 | 矢崎总业株式会社 | Dial module and meter employing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |