CN2666721Y - Direct driving electronic vehicle speed hodometer - Google Patents
Direct driving electronic vehicle speed hodometer Download PDFInfo
- Publication number
- CN2666721Y CN2666721Y CN 200320123203 CN200320123203U CN2666721Y CN 2666721 Y CN2666721 Y CN 2666721Y CN 200320123203 CN200320123203 CN 200320123203 CN 200320123203 U CN200320123203 U CN 200320123203U CN 2666721 Y CN2666721 Y CN 2666721Y
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- hall element
- cpu
- micro controller
- controller system
- speed
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Abstract
The utility model discloses a direct-driven electronic speedometer and relates to the technical field of the electronic speedometer, the utility model comprises a magnetic steel driven by a soft axis, a single chip, a power supply, a memorizer, a liquid crystal display, a hall element, and an electronic meter. The side of the magnetic steel is provided with the hall element that can transform the vehicle-speed magnetic signals into identifiable electric signals of the single chip; the power supply is separately connected with the hall element and the single chip; the electric signal output end of the hall element is connected with the input end of the single chip; the electronic meter, the memorizer and the liquid crystal display are separately connected with the single chip. The utility model combines organically the traditional speedometer and the modern electronic technology, greatly reduces the demand on the performance of the magnetic steel and the drive mechanism by the combination of machinery drive and sensor, and leaves out the demand of independent sensor on the improvement of automobile wiring harness. The utility model has simple structure and steady and reliable performance and is suitable for being used in various vehicles.
Description
Technical field: technical solutions of the utility model relate to a kind of car speed mileage table.
Background technology: in the prior art, traditional mechanical type car speed mileage table drives the permanent magnet rotation by flexible axle, support induction cover is thereon arranged again along with the variation of magnetic flow produces eddy current in inside, thereby the induction reactance of generation makes the rotation of induction cover, the rotation of drive pointer reaches the speed purpose of indicating; The record of travelled distance is to realize with mechanical transmission mechanism, after three transmission that the mileage signal that flexible axle transmits is paid through slowing down, realizes accumulating function by mechanical counter at last.Because the pointer of mechanical type car speed mileage table is supported on the magnet of rotation, when running at high speed, magnet is with the flexible axle high speed revolution and play is up and down arranged, and this play can drive the play up and down of indicator needle shaft, make pointer tremble, can make pointer generation stuck phenomenon when serious; When low speed driving, because that flexible axle rotates is slow, magnetic induction density is little, and the suffered balancing force of induction cover is very little, causes pointer galloping, the speed of a motor vehicle in the time of can not accurate response low speed.In addition, because the mechanical type car speed mileage table mainly is a mechanical drive, the wearing and tearing of parts or the factor of some external force all can cause the inefficacy of car speed mileage table.
Traditional electronic instrument then at first must by one independently sensor the mileage signal is provided, therefore, need again electric appliance circuits to be improved, and owing to existing vehicular electrical appliance circuit, wire harness have designed and finished, for reducing waste or, often yielding the idea of on existing car, using electronic watch for not changing original design.
Summary of the invention:
Technical problem to be solved in the utility model is, design a kind of direct drive electronic type car speed mileage table, easily tremble with the pointer when the high speed that solves that existing traditional mechanical formula car speed mileage table exists, the technical matters that can not truly reflect actual vehicle speed during low speed, and use traditional electrical minor car speed mileage table need change the car electrics strand design, and increase the independently problem of car speed sensor.
The technical scheme of the utility model technical solution problem is: the magnet steel that it is driven by flexible axle, micro controller system (CPU), power supply, memory device (EEPROM), Liquid Crystal Display (LCD) and ammeter are formed, other being equipped with of its magnet steel can be changed speed of a motor vehicle magnetic signal into the Hall element that micro controller system (CPU) can be discerned electric signal, power supply is connected with Hall element and micro controller system (CPU) respectively, the electrical signal of Hall element is connected with the input end of micro controller system (CPU), Hall element is transported to the speed of a motor vehicle electric signal input end of micro controller system (CPU), ammeter, memory device (EEPROM) and Liquid Crystal Display (LCD) are connected with micro controller system (CPU) respectively, micro controller system (CPU) is transported to the speed of a motor vehicle electric signal that obtains on the ammeter, and speed of a motor vehicle electric signal is transported to memory device (EEPROM) storage, feed back on the Liquid Crystal Display (LCD) by micro controller system (CPU) through the mileage electric signal of the storage of memory device (EEPROM).
The Hall element that induced signal is used can substitute with dry-reed tube.
Owing to adopt technique scheme, the utility model organically combines traditional speed meter and modern electronic technology, utilize the combination of mechanical drive and sensor, reduced performance demands significantly to magnet and transmission device, the requirement of selecting for use common material and general structure just can satisfaction to answer has also been saved independently sensor to the improved demand of wire harness.The utility model is simple in structure, and is stable and reliable for performance, is suitable for using on various vehicles.
Description of drawings:
Fig. 1 is a kind of example structure scheme drawing of optimal design.
In the drawings: magnet steel 1; Hall element 2; Liquid Crystal Display (LCD) 3; Micro controller system (CPU) 4; Memory device (EEPROM) 5; Ammeter 6.
In conjunction with Fig. 1, direct drive electronic type car speed mileage table is made up of magnet steel 1, micro controller system (CPU) 4, power supply, memory device (EEPROM) 5, Liquid Crystal Display (LCD) 3, Hall element 2 and electronic watch 6 that flexible axle drives.Its magnet steel 1 other being equipped with can be changed speed of a motor vehicle magnetic signal into the Hall element 2 that micro controller system (CPU) 4 can be discerned electric signal, and Hall element 2 can be dry-reed tube.Power supply DC1 circuit is taken over D1, resistance R 1 and shunt capacitance C1 by two of serial connection and is constituted, and power supply DC1 is connected micro controller system (CPU) 4, and its power supply voltage is 8 volts; Power supply DC2 is connected on the Hall element 2, and its power supply voltage is 5 volts.The electrical signal of Hall element is connected with the input end of micro controller system (CPU), and ammeter 6, memory device (EEPROM) 5 and Liquid Crystal Display (LCD) 3 are connected with micro controller system (CPU) 4 respectively.
When pressing the product use of the foregoing description making, Hall element 2 changes speed of a motor vehicle magnetic signal into micro controller system (CPU) 4 can discern electric signal, and this electric signal is transported to the input end of micro controller system (CPU) 4, micro controller system (CPU) 4 is transported to the speed of a motor vehicle electric signal that obtains on the ammeter 6, and speed of a motor vehicle electric signal is transported to memory device (EEPROM) 5 storage, feed back on the Liquid Crystal Display (LCD) 3 by micro controller system (CPU) 4 through the mileage electric signal of the storage of memory device (EEPROM) 5.
Claims (2)
1, a kind of direct drive electronic type car speed mileage table, the magnet steel (1) that it is driven by flexible axle, micro controller system (CPU) (4), power supply, memory device (EEPROM) (5), Liquid Crystal Display (LCD) (3) and ammeter (6) are formed, it is characterized in that: other being equipped with of its magnet steel (1) can be changed speed of a motor vehicle magnetic signal into the Hall element (2) that micro controller system (CPU) (4) can be discerned electric signal, power supply is connected with Hall element (2) and micro controller system (CPU) (4) respectively, the electrical signal of Hall element (2) is connected with the input end of micro controller system (CPU) (4), Hall element (2) is transported to the speed of a motor vehicle electric signal input end of micro controller system (CPU) (4), ammeter (6), memory device (EEPROM) (5) and Liquid Crystal Display (LCD) (3) are connected with micro controller system (CPU) (4) respectively, micro controller system (CPU) (4) is transported to the speed of a motor vehicle electric signal that obtains on the ammeter (6), and speed of a motor vehicle electric signal is transported to memory device (EEPROM) (5) storage, feed back on the Liquid Crystal Display (LCD) (3) by micro controller system (CPU) (4) through the mileage electric signal of the storage of memory device (EEPROM) (5).
2, direct drive electronic type car speed mileage table according to claim 1, it is characterized in that: said Hall element (2) can be dry-reed tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123203 CN2666721Y (en) | 2003-12-22 | 2003-12-22 | Direct driving electronic vehicle speed hodometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123203 CN2666721Y (en) | 2003-12-22 | 2003-12-22 | Direct driving electronic vehicle speed hodometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2666721Y true CN2666721Y (en) | 2004-12-29 |
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ID=34348770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320123203 Expired - Fee Related CN2666721Y (en) | 2003-12-22 | 2003-12-22 | Direct driving electronic vehicle speed hodometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2666721Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013038B (en) * | 2007-01-31 | 2010-05-26 | 綦江齿轮传动有限公司 | Transmission electronic odometer speed-measuring system and method |
| CN102278999A (en) * | 2011-07-01 | 2011-12-14 | 南京信息工程大学 | Intelligent digital velocity mileage metering installation |
| CN102865878A (en) * | 2011-07-05 | 2013-01-09 | 杭州市电力局 | Milemeter and mileage acquisition system for electric vehicle |
| CN103591964A (en) * | 2013-10-30 | 2014-02-19 | 江苏科技大学 | Electric bicycle driving distance acquisition device and acquisition method |
| CN104296773A (en) * | 2014-10-20 | 2015-01-21 | 陕西法士特齿轮有限责任公司 | Electronic type odometer sensor for commercial vehicle |
-
2003
- 2003-12-22 CN CN 200320123203 patent/CN2666721Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013038B (en) * | 2007-01-31 | 2010-05-26 | 綦江齿轮传动有限公司 | Transmission electronic odometer speed-measuring system and method |
| CN102278999A (en) * | 2011-07-01 | 2011-12-14 | 南京信息工程大学 | Intelligent digital velocity mileage metering installation |
| CN102865878A (en) * | 2011-07-05 | 2013-01-09 | 杭州市电力局 | Milemeter and mileage acquisition system for electric vehicle |
| CN103591964A (en) * | 2013-10-30 | 2014-02-19 | 江苏科技大学 | Electric bicycle driving distance acquisition device and acquisition method |
| CN104296773A (en) * | 2014-10-20 | 2015-01-21 | 陕西法士特齿轮有限责任公司 | Electronic type odometer sensor for commercial vehicle |
| CN104296773B (en) * | 2014-10-20 | 2017-07-28 | 陕西法士特齿轮有限责任公司 | A kind of commercial vehicle electric minor kilometer sensor |
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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 |