CN2938033Y - Electric vehicle instrument - Google Patents
Electric vehicle instrument Download PDFInfo
- Publication number
- CN2938033Y CN2938033Y CN 200620122793 CN200620122793U CN2938033Y CN 2938033 Y CN2938033 Y CN 2938033Y CN 200620122793 CN200620122793 CN 200620122793 CN 200620122793 U CN200620122793 U CN 200620122793U CN 2938033 Y CN2938033 Y CN 2938033Y
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- China
- Prior art keywords
- circuit
- travel speed
- voltage
- motor car
- electric motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an instrument of an electric vehicle, comprising a soft touch keying circuit, a measurement model selection circuit for measuring the running speed of an electric vehicle, a driving circuit for an LCD light backlight board, an alarming circuit for the low voltage, a circuit for managing the power supply, a principal controlling chip circuit, a detection circuit for measuring the running speed with the pulse frequency, a program burning transcription port, a circuit for detecting the voltage of a battery jar, a detection circuit for measuring the running speed with the voltage value of an electric valve, and an LCD driving circuit. Wherein the driving circuit for an LCD light backlight board is a single circuit; but the soft touch keying circuit, the measurement model selection circuit for measuring the running speed of an electric vehicle, the alarming circuit for the low voltage, the detection circuit for measuring the running speed with the pulse frequency, the program burning transcription port, the detection circuit for measuring the running speed with the voltage value of an electric valve, and the LCD driving circuit are respectively connected with the principal controlling chip circuit ; and the circuit for managing the power supply is connected with the principal controlling chip circuit by means of the circuit for detecting the voltage of a battery jar. The utility model can display the speed per hour and the electric quantity by the digital display and the LCD. Furthermore, the utility model works with a good effect and saves energy.
Description
Technical field
The utility model relates to the electric motor car instrument, specifically a kind of electric motor car instrument with liquid crystal and digital difunctional demonstration.
Background technology
At present, traditional electrical motor-car instrument on the market generally all is pointer panel board, rather than LCDs shows, very not directly perceived when seeing speed per hour or voltage, simultaneously function is also few, fit in the electric motor car very not attractive in appearance, along with the continuous development of electric motor car, instrument can more and more be subjected to the attention of consumer and producer with position and function intuitively.
The utility model content
The technical solution problem of wanting of the present utility model is to overcome the deficiencies in the prior art part, and a kind of electric motor car instrument with liquid crystal display is provided.
The technical scheme that its technical matters that solves the utility model adopts is: the electric motor car instrument, comprise and touch key circuit P1, electric motor car travel speed measurement pattern is selected circuit P2, LCD backlight drive circuit P3, low-voltage warning circuit P4, electric power management circuit P5, main control chip circuit P6, the travel speed testing circuit P7 that measures with pulsed frequency, burning program mouth P8, battery voltage testing circuit P9, travel speed testing circuit P10 with the measurement of electric valve magnitude of voltage, liquid crystal display drive circuit P11, wherein LCD backlight drive circuit P3 is an independent circuit, and touch key circuit P1, electric motor car travel speed measurement pattern is selected circuit P2, low-voltage warning circuit P4, the travel speed testing circuit P7 that measures with pulsed frequency, burning program mouth P8, travel speed testing circuit P10 with the measurement of electric valve magnitude of voltage, liquid crystal display drive circuit P11 is connected with main control chip circuit P6 separately, and electric power management circuit P5 then is connected in main control chip circuit P6 by battery voltage testing circuit P9.
Describedly touch total kilometres zero clearing button CLEER and total kilometres among the key circuit P1 and show with clock display mode switching key CLOCK and be connected 4,5 pin in the main control chip circuit respectively.
The travel speed testing circuit P7 that described electric motor car travel speed measurement pattern selects circuit P2, low-voltage warning circuit P4, measure with pulsed frequency, connect 6,11,14,26 pin of main control chip circuit P6 respectively with the travel speed testing circuit P10 of electric valve magnitude of voltage measurement.
Described electric power management circuit P5 then is connected in 23 pin of main control chip circuit P6 by battery voltage testing circuit P9.
Described burning program mouth P8 is connected in 17,18,19 pin of main control chip circuit P6.
1,2,3,4 pin among the described liquid crystal display drive circuit P11 are connected to 15,16,17,18 pin of main control chip circuit P6.
Touch travel speed testing circuit that key circuit, electric motor car travel speed measurement pattern select circuit, low-voltage warning circuit, measure with pulsed frequency, burning program mouth in the utility model, be connected with the main control chip circuit separately with travel speed testing circuit, the liquid crystal display drive circuit of electric valve magnitude of voltage measurement, electric power management circuit then is connected in the main control chip circuit by the battery voltage testing circuit, so it is can digital demonstration, liquid crystal display speed per hour, electric weight etc., and effective energy-conservation.
Description of drawings
Figure is the electrical block diagram of electric motor car instrument.
Embodiment
With reference to Figure of description electric motor car instrument of the present utility model is explained.
Electric motor car instrument of the present utility model, the electric motor car instrument, comprise and touch key circuit P1, electric motor car travel speed measurement pattern is selected circuit P2, LCD backlight drive circuit P3, low-voltage warning circuit P4, electric power management circuit P5, main control chip circuit P6, the travel speed testing circuit P7 that measures with pulsed frequency, burning program mouth P8, battery voltage testing circuit P9, travel speed testing circuit P10 with the measurement of electric valve magnitude of voltage, liquid crystal display drive circuit P11, wherein LCD backlight drive circuit P3 is an independent circuit, and touch key circuit P1, electric motor car travel speed measurement pattern is selected circuit P2, low-voltage warning circuit P4, the travel speed testing circuit P7 that measures with pulsed frequency, burning program mouth P8, travel speed testing circuit P10 with the measurement of electric valve magnitude of voltage, liquid crystal display drive circuit P11 is connected with main control chip circuit P6 separately, and electric power management circuit P5 then is connected in main control chip circuit P6 by battery voltage testing circuit P9.
Describedly touch total kilometres zero clearing button CLEER and total kilometres among the key circuit P1 and show with clock display mode switching key CLOCK and be connected 4,5 pin in the main control chip circuit respectively.
The travel speed testing circuit P7 that described electric motor car travel speed measurement pattern selects circuit P2, low-voltage warning circuit P4, measure with pulsed frequency, connect 6,11,14,26 pin of main control chip circuit P6 respectively with the travel speed testing circuit P10 of electric valve magnitude of voltage measurement.
Described electric power management circuit P5 then is connected in 23 pin of main control chip circuit P6 by battery voltage testing circuit P9.
Described burning program mouth P8 is connected in 17,18,19 pin of main control chip circuit P6.
1,2,3,4 pin among the described liquid crystal display drive circuit P11 are connected to 15,16,17,18 pin of main control chip circuit P6.
Touch key circuit: CLEER is a total kilometres zero clearing button, when total kilometres have historical data, total kilometres can be removed by the CLEER key, reverts to 0; CLOCK shows and the clock display mode switching key for the LCD total kilometres.
Electric motor car travel speed measurement pattern is selected circuit: when the R18 welding, R19 does not weld, and when the PD4 port was drawn high, expression selected to measure according to electric motor car electric valve input voltage equivalent the pattern of travel speed; When the R19 welding, R18 does not weld, and when the PD4 port was dragged down, the pulsed frequency of tyre rotation input was measured the pattern of travel speed when the expression selection was travelled according to electric motor car.
LCD backlight drive circuit: LED is the pin interface of backlight, and K end is for just, and the A end is for bearing.
The low-voltage warning circuit: the battery voltage that records as PART9 is during less than 44V, the buzzer call alarm.
Electric power management circuit: input voltage is 44～54V, and output voltage is+5V, and POWER is the voltage input end mouth, and pin 2 is anodal, and pin 1 is a negative pole.
The main control chip circuit: main control chip is ATMEGA48, peripheral other circuit workings of control, thereby the function that realization needs.
(measuring according to pulsed frequency) travel speed testing circuit: single-chip microcomputer adopts the capturing function of timer internal TIMER, catches the pulsed frequency that produces when electric motor car travels, thereby calculates corresponding travel speed according to corresponding pulsed frequency value.SIGNALL is the interface of youngster's sensor suddenly, and pin 1 is a negative pole, and pin 2 is the pulse input pin, and pin 3 is supplied pin for power supply.
The battery voltage testing circuit: single-chip microcomputer adopts inner AD to carry out the magnitude of voltage sampling, thereby records the current magnitude of voltage of storage battery according to the intrinsic standoff ratio of resistance.
(measuring according to the electric valve magnitude of voltage) travel speed testing circuit: single-chip microcomputer adopts inner AD that the voltage acquisition of electric valve input is converted to the correspondent voltage value, calculates electric motor car according to the correspondent voltage value again and gets travel speed.0～24V is the interface of electric valve, and pin 1 is anodal, and pin 2 is a negative pole.
Liquid crystal display drive circuit: adopt HT1621 to realize that liquid crystal drive shows that content displayed has total kilometres, clock, travel speed, battery voltage value.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (6)
1, the electric motor car instrument, it is characterized in that comprising and touch key circuit (P1), electric motor car travel speed measurement pattern is selected circuit (P2), LCD backlight drive circuit (P3), low-voltage warning circuit (P4), electric power management circuit (P5), main control chip circuit (P6), the travel speed testing circuit of measuring with pulsed frequency (P7), burning program mouth (P8), battery voltage testing circuit (P9), travel speed testing circuit (P10) with the measurement of electric valve magnitude of voltage, liquid crystal display drive circuit (P11), wherein LCD backlight drive circuit (P3) is an independent circuit, and touch key circuit (P1), electric motor car travel speed measurement pattern is selected circuit (P2), low-voltage warning circuit (P4), the travel speed testing circuit of measuring with pulsed frequency (P7), burning program mouth (P8), travel speed testing circuit (P10) with the measurement of electric valve magnitude of voltage, liquid crystal display drive circuit (P11) is connected with main control chip circuit (P6) separately, and electric power management circuit (P5) then is connected in main control chip circuit (P6) by battery voltage testing circuit (P9).
2, electric motor car instrument according to claim 1 is characterized in that describedly touching total kilometres zero clearing button (CLEER) and total kilometres demonstration and clock display mode switching key (CLOCK) in the key circuit (P1) and being connected (4), (5) pin in the main control chip circuit respectively.
3, electric motor car instrument according to claim 1 is characterized in that travel speed testing circuit (P7) that described electric motor car travel speed measurement pattern selects circuit (P2), low-voltage warning circuit (P4), measures with pulsed frequency, connects (6), (11), (14), (26) pin of main control chip circuit (P6) with the travel speed testing circuit (P10) of electric valve magnitude of voltage measurement respectively.
4, electric motor car instrument according to claim 1 is characterized in that described electric power management circuit (P5) then is connected in (23) pin of main control chip circuit (P6) by battery voltage testing circuit (P9).
5, electric motor car instrument according to claim 1 is characterized in that described burning program mouth (P8) is connected in (17) of main control chip circuit (P6), (18), (19) pin.
6, electric motor car instrument according to claim 1 is characterized in that (1), (2), (3), (4) pin in the described liquid crystal display drive circuit (P11) are connected to (15), (16) of main control chip circuit (P6), (17), (18) pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122793 CN2938033Y (en) | 2006-07-27 | 2006-07-27 | Electric vehicle instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122793 CN2938033Y (en) | 2006-07-27 | 2006-07-27 | Electric vehicle instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2938033Y true CN2938033Y (en) | 2007-08-22 |
Family
ID=38362062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620122793 Expired - Fee Related CN2938033Y (en) | 2006-07-27 | 2006-07-27 | Electric vehicle instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2938033Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564246A (en) * | 2015-12-28 | 2016-05-11 | 广州汽车集团股份有限公司 | Mileage display control method and system |
-
2006
- 2006-07-27 CN CN 200620122793 patent/CN2938033Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564246A (en) * | 2015-12-28 | 2016-05-11 | 广州汽车集团股份有限公司 | Mileage display control method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Lin Zhenghua Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20110727 |