CN202691009U - Device for determining automobile gear - Google Patents
Device for determining automobile gear Download PDFInfo
- Publication number
- CN202691009U CN202691009U CN 201220385510 CN201220385510U CN202691009U CN 202691009 U CN202691009 U CN 202691009U CN 201220385510 CN201220385510 CN 201220385510 CN 201220385510 U CN201220385510 U CN 201220385510U CN 202691009 U CN202691009 U CN 202691009U
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- CN
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- Prior art keywords
- circuit
- automobile
- chip microcomputer
- gear
- display
- Prior art date
- 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 a device for determining an automobile gear, comprising a single chip microcomputer (1), a power supply circuit (2), a display circuit (3), an alarm circuit (6), and a keying circuit (7); the single chip microcomputer (1) is connected with an automobile backing switch (K2), an automobile neutral gear switch (K1), an automobile revolution speed transducer (5), and an automobile speed transducer (4); the single chip microcomputer (1) is also connected with the display circuit (3), the alarm circuit (6), and the keying circuit (7); the power supply circuit (2) is connected with an automobile storage battery (E), and the power supply circuit (2) is also connected with the single chip microcomputer (1). The device can display the gear and make a timely alarm.
Description
Technical field
The utility model relates to for the device of judging automobile gears.
Background technique
Manual car comprises five forward, 1 neutral and 1 reverse gear.Do not have the automobile gears Presentation Function on the instrument panel of automobile at present, the driver forgets gear, the especially new hand that oneself is hung easily in steering vehicle, in a rush phenomenon occurs easily.
The model utility content
The technical problems to be solved in the utility model is that a kind of device that is used for judging automobile gears that can show gear and energy and alarm is provided.
Technical solution of the present utility model is, a kind of device that is used for judging automobile gears with following structure is provided, and comprises single-chip microcomputer, power circuit, display circuit, warning circuit and key circuit; Described single-chip microcomputer is connected with rolling-back of car switch, automobile neutral position switch, automobile rotating speed sensor and car speed sensor; Described single-chip microcomputer also is connected with display circuit, warning circuit and key circuit; Described power circuit is connected with car accumulator, and described power circuit also is connected with single-chip microcomputer.
After adopting above structure, the device for judging automobile gears of the present utility model compared with prior art, has the following advantages:
When the automobile suspension reverse gear, the rolling-back of car switch is just closed, single-chip microcomputer just detects reversing information, single-chip microcomputer can be presented at reversing information on the display circuit, when the automobile suspension neutral, the automobile neutral position switch is just closed, single-chip microcomputer just detects neutral information, single-chip microcomputer can be presented at neutral information on the display circuit, when the automobile suspension forward gears, single-chip microcomputer can calculate gear according to the speed of a motor vehicle and engine speed, the gear that calculates can be presented on the display circuit, and the mode that the speed of a motor vehicle is calculated gear is: the mode that the speed of a motor vehicle is calculated gear is:
, wherein i is the gearbox velocity ratio, and n is engine speed (r/min), and I is rear-axle gear ratio, and PI is π, and r is tire radius (m), and v is the speed of a motor vehicle (km/h); By calculating the value of gearbox velocity ratio i, inquire about the gearbox-gear velocity ratio, automobile gears just can show like this, and the display screen in the display circuit is located in the automobile instrument panel; Described warning circuit is used for the speed of a motor vehicle reports to the police, and when namely the speed of a motor vehicle surpassed setting value, warning circuit chimes of doom will occur notes reducing the speed of a motor vehicle with the prompting driver; Described key circuit is used for realizing the setting of the warning speed of a motor vehicle.The driver just can watch the instruments when forgetting the gear of oneself hanging the demonstration in the dish gear just can, avoid occurring in a rush phenomenon, improve the Security of driving.And the function of overspeed alarming has further improved the Security of steering vehicle.
Description of drawings
Fig. 1 is the circuit diagram of the device for judging automobile gears of the present utility model.
Shown in the figure: 1, single-chip microcomputer, 2, power circuit, 3, display circuit, 4, vehicle speed sensor, 5, speed probe, 6, warning circuit, 7, key circuit, E, storage battery, K1, neutral position switch, K2, reversing switch.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Shown in please refer to the drawing 1, the device for judging automobile gears of the present utility model comprises single-chip microcomputer 1, power circuit 2, display circuit 3, warning circuit 6 and key circuit 7.Described single-chip microcomputer 1 is connected with automobile rotating speed sensor with rolling-back of car K switch 2, automobile neutral position switch K1 and car speed sensor 4 is connected.Described single-chip microcomputer 1 also is connected with display circuit 3, warning circuit 6 and key circuit 7.Described power circuit 2 is connected with car accumulator E, and described power circuit 2 also is connected with single-chip microcomputer 1.Described power circuit 2 also is connected with vehicle speed sensor 4.
Described power circuit 2 is used for providing power supply to single-chip microcomputer 1 and vehicle speed sensor 4.Described display circuit 3 comprises display screen, and described display screen is located in the motormeter, is used for the display automobile gear.Described single-chip microcomputer 1 is used for control display circuit 3, receives the signal of the transmission of vehicle speed sensor 4, speed probe 5, neutral position switch K1 and reversing switch K2.Described warning circuit 6 is used for the speed of a motor vehicle reports to the police, and when namely the speed of a motor vehicle surpassed setting value, warning circuit 6 chimes of doom will occur notes reducing the speed of a motor vehicle with the prompting driver.Described key circuit 7 is used for realizing the setting of the warning speed of a motor vehicle.
Claims (1)
1. a device that is used for judging automobile gears is characterized in that: comprise single-chip microcomputer (1), power circuit (2), display circuit (3), warning circuit (6) and key circuit (7); Described single-chip microcomputer (1) is connected with rolling-back of car switch (K2), automobile neutral position switch (K1), automobile rotating speed sensor (5) and car speed sensor (4); Described single-chip microcomputer (1) also is connected with display circuit (3), warning circuit (6) and key circuit (7); Described power circuit (2) is connected with car accumulator (E), and described power circuit (2) also is connected with single-chip microcomputer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385510 CN202691009U (en) | 2012-08-06 | 2012-08-06 | Device for determining automobile gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385510 CN202691009U (en) | 2012-08-06 | 2012-08-06 | Device for determining automobile gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691009U true CN202691009U (en) | 2013-01-23 |
Family
ID=47546634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220385510 Expired - Fee Related CN202691009U (en) | 2012-08-06 | 2012-08-06 | Device for determining automobile gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691009U (en) |
-
2012
- 2012-08-06 CN CN 201220385510 patent/CN202691009U/en not_active Expired - Fee Related
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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: ZHEJIANG NANCHE TRAMWAYS CO., LTD. Free format text: FORMER NAME: NINGBO JIJIANG AUTOMOBILE MANUFACTURING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 315102 Zhejiang city of Ningbo province Yinzhou investment business center No. 9 Road (East) Valley Patentee after: Zhejiang Nanche Tramways Co., Ltd. Address before: 315104 Zhejiang city of Ningbo province Yinzhou investment business center Valley Road No. 9 Patentee before: Ningbo Jijiang Automobile Manufacturing Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |