CN203083578U - Instructional car odometer - Google Patents
Instructional car odometer Download PDFInfo
- Publication number
- CN203083578U CN203083578U CN 201320079559 CN201320079559U CN203083578U CN 203083578 U CN203083578 U CN 203083578U CN 201320079559 CN201320079559 CN 201320079559 CN 201320079559 U CN201320079559 U CN 201320079559U CN 203083578 U CN203083578 U CN 203083578U
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- magnetic resistance
- signal
- sensor
- resistance chip
- mileage
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Abstract
Aiming at overcoming the defects that a conventional instructional car odometer cannot be used for distinguishing the forward state from the backward state of a car or separately recording the backward mileage of the car, the utility model provides an instructional car odometer. The instructional car odometer consists of a sensor, a signal processor and a mileage display screen, wherein the sensor is a two-phase velocity sensor comprising a first magnetic resistance chip and a second magnetic resistance chip, a signal output terminal of the first magnetic resistance chip and a signal output terminal of the second magnetic resistance chip in the sensor are respectively connected with a signal input terminal of the signal processor, and a signal output terminal of the signal processor is connected with a signal input terminal of the mileage display screen. The instructional car odometer has the beneficial technical effects of being capable of distinguishing the forward state from the backward state of the car and respectively accumulating the forward mileage, the backward mileage and the total mileage of the car; and the product amplifies signals sent by the sensor and then transmits the signals to the signal processor for processing so as to improve the measurement accuracy.
Description
Technical field
The utility model relates to field of automobile, is specifically related to the learner-driven vehicle mileometer.
Background technology
Automobile kilometer is a kind of travel metering device of total kilometrage and this mileage of registration of vehicle that is used for, and its principle of work is by the pulse of accumulative total vehicle speed sensor signal and is scaled the distance travelled mode of counting and realizes.But under this mode, mileometer can't be told vehicle and advance or retreat, so long as the pulse that vehicle speed sensor produces is all by mileometer accumulative total and be scaled total distance travelled number.And the special environment for use on learner-driven vehicle, for the better actual enforcement situation of reflection vehicle, the novel mileometer in learner-driven vehicle is except registration of vehicle travel total kilometrage number and this mileage number, is necessary to write down to retreat mileage number.
The utility model content
Can't distinguish advancing of vehicle and fallback state in order to overcome existing learner-driven vehicle mileometer, registration of vehicle retreats the drawback of mileage separately, and the utility model provides the learner-driven vehicle mileometer, and its concrete structure is:
The learner-driven vehicle mileometer is made up of sensor 1, signal processor 2 and mileage display screen 3, and wherein, sensor 1 promptly contains the two-phase speed pickup of the first magnetic resistance chip 11 and the second magnetic resistance chip 12 for comprising the two-phase speed pickup of two magnetic resistance chips; The first magnetic resistance chip, 11 signal output parts in the sensor 1 and the signal output part of the second magnetic resistance chip 12 are connected with the signal input part of signal processor 2 respectively, and the signal output part of signal processor 2 is connected with the signal input part of mileage display screen 3.
Beneficial technical effects:
This product can distinguish vehicle advance with fallback state and add up respectively vehicle the mileage number that advances, retreat mileage number and total kilometrage number; Be passed to signal processor processes after the signal that this product sends sensor amplifies again, improved the precision of measuring; Adopt this product to help the trainer to prepare training program targetedly at student's individual instances.
Description of drawings
Fig. 1 is the utility model electricity structure block diagram.
Sequence number is among the figure: sensor 1, signal processor 2, mileage display screen 3, signal amplification circuit 4, the first magnetic resistance chip 11, the second magnetic resistance chip 12.
Embodiment
Now be described with reference to the accompanying drawings structural principle of the present utility model.
Referring to Fig. 1, the learner-driven vehicle mileometer is made up of sensor 1, signal processor 2 and mileage display screen 3, wherein, sensor 1 promptly contains the two-phase speed pickup of the first magnetic resistance chip 11 and the second magnetic resistance chip 12 for comprising the two-phase speed pickup of two magnetic resistance chips; The first magnetic resistance chip, 11 signal output parts in the sensor 1 and the signal output part of the second magnetic resistance chip 12 are connected with the signal input part of signal processor 2 respectively, and the signal output part of signal processor 2 is connected with the signal input part of mileage display screen 3.
In addition, be provided with signal amplification circuit 4 between sensor 1 and the signal processor 2; The signal output part of the signal output part of the first magnetic resistance chip 11 and the second magnetic resistance chip 12 is connected with the signal input part of signal amplification circuit 4 respectively, and the signal output part of signal amplification circuit 4 is connected with signal processor 2 input ends.
During use, sensor 1 is connected with transmission output shaft, the first magnetic resistance chip 11 and the second magnetic resistance chip 12 are exported set of pulses signal respectively, owing to there is a phasing degree between the first magnetic resistance chip 11 and the second magnetic resistance chip 12, phase differential of existence between the pulse signal that makes magnetic resistance chip 11 output of winning and the pulse signal of the second magnetic resistance chip, 12 outputs, signal processor 2 is judged the direct of travel of identification vehicle by this phasing degree, and according to different direct of travel record mileage numbers, the total kilometrage number that accumulative total is travelled, the mileage number that this travels and retreat mileage number.
Claims (2)
1. learner-driven vehicle mileometer, comprise mileage display screen (3), it is characterized in that, also be provided with sensor (1) and signal processor (2), wherein, sensor (1) promptly contains the two-phase speed pickup of the first magnetic resistance chip (11) and the second magnetic resistance chip (12) for comprising the two-phase speed pickup of two magnetic resistance chips; First magnetic resistance chip (11) signal output part in the sensor (1) and the signal output part of the second magnetic resistance chip (12) are connected with the signal input part of signal processor (2) respectively, and the signal output part of signal processor (2) is connected with the signal input part of mileage display screen (3).
2. learner-driven vehicle as claimed in claim 1 mileometer is characterized in that, is provided with signal amplification circuit (4) between sensor (1) and the signal processor (2); The signal output part of the signal output part of the first magnetic resistance chip (11) and the second magnetic resistance chip (12) is connected with the signal input part of signal amplification circuit (4) respectively, and the signal output part of signal amplification circuit (4) is connected with signal processor (2) input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079559 CN203083578U (en) | 2013-02-21 | 2013-02-21 | Instructional car odometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079559 CN203083578U (en) | 2013-02-21 | 2013-02-21 | Instructional car odometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083578U true CN203083578U (en) | 2013-07-24 |
Family
ID=48829404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320079559 Expired - Fee Related CN203083578U (en) | 2013-02-21 | 2013-02-21 | Instructional car odometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453916A (en) * | 2013-09-16 | 2013-12-18 | 北京机械设备研究所 | Speedometer capable of autonomously judging direction |
-
2013
- 2013-02-21 CN CN 201320079559 patent/CN203083578U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453916A (en) * | 2013-09-16 | 2013-12-18 | 北京机械设备研究所 | Speedometer capable of autonomously judging direction |
| CN103453916B (en) * | 2013-09-16 | 2016-01-20 | 北京机械设备研究所 | A kind of direction is from judging odometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI LIEBAO AUTOMOBILE CO., LTD. Free format text: FORMER NAME: ANHUI CHANGFENG YANGZI MOTOR MANUFACTURING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 239000 Yangzi Industrial Zone, Chuzhou, Anhui Patentee after: ANHUI LEOPAARD AUTOMOBILE CO.,LTD. Address before: 239400 No. 314 Ling Road, Yangzi industrial area, Chuzhou, Anhui Patentee before: ANHUI CHANGFENG YANGZI MOTOR MANUFACTURING Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 |