CN200988431Y - Digital automobile instrument with CAN assembly interface - Google Patents
Digital automobile instrument with CAN assembly interface Download PDFInfo
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- CN200988431Y CN200988431Y CN 200620141554 CN200620141554U CN200988431Y CN 200988431 Y CN200988431 Y CN 200988431Y CN 200620141554 CN200620141554 CN 200620141554 CN 200620141554 U CN200620141554 U CN 200620141554U CN 200988431 Y CN200988431 Y CN 200988431Y
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Abstract
The utility model relates to a digital vehicle meter with a CAN bus interface, comprising a pointer meter panel, an alarm indicator lamp, a failure diagnosis display screen, a contact push-button and the CAN communication as well as input and output interfaces, which has the function of collecting switching value, analog quantity and frequency value. The utility model can not only indicate the operation parameters such as driving speed, engine rotational speed, water temperature and fuel quantity and sound a plurality of warning indicator signals, but also be used by networking with the CAN bus system of the vehicle body and display the failure diagnostic information by a liquid crystal screen real-timely.
Description
Technical field
The utility model belongs to computer controlled, vehicle electronics applied technical field, relates in particular to a kind of dynamic acquisition, demonstration of information of vehicles and in-vehicle device information is carried out central controlled special purpose computer control system.
Background technology
Auto meter is in order to detect the device of each system health of automobile, is that all types of automobiles are requisite, and chaufeur can be grasped the mode of operation of each parts of automobile at any time by auto meter.Auto meter can be divided into machinery instrument and electronic instrument two big classes by its mechanism principle.Machinery adopts the imitative moving way of machinery to realize with expression, thereby keep away unavoidable mechanical error, mechanical wear, cause instrument to exist precision low, service life, shortcoming such as weak point, fault rate height had a strong impact on the total quality of automobile, though electronic instrument has solved the influence of mechanical error and mechanical wear to a certain extent, but because of being adopts the electronic simulation technology, also to convert mechanical indicator at last, can not thoroughly solve the influence of mechanical error, and poor anti jamming capability, reliability is not high.
Along with the development of automotive electronic technology and the continuous increase of automobile function, on instrument assembly, want display data more and more, so just require on instrument assembly, to accomplish analog-and digital-combination, even digitalisation.In addition, existing part automobile instrument assembly can not be connected with the vehicle body total system, causes information to share, and the car body operation conditions can not in time pass to chaufeur.As the patent No. is 200420055459.3 bus type automobile instrument assemblies, form by car speed mileage table, speed gage, water temperature fuel gage, voltage oil pressure indicator, air-pressure gauge and alarm board, this instrument assembly is fit to certain car body requirement, but lacks control and demonstration to the car body integrality.
Summary of the invention
The utility model mainly is to solve existing in prior technology to the low technical matters that waits of the whole control ability of car body, and a kind of digital automobile instrument with CAN bus interface that car body is had whole control ability is provided.
The utility model is except above-mentioned purpose, provide a kind of digital automobile instrument of the CAN of having bus interface in addition, show for the good operation of automobile mechanical equipment and electrical equipment provides requisite complete parameter, instrument, mobile unit are carried out integrated management and control.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the digital automobile instrument that a kind of CAN of having bus interface is provided, master control board is installed on the inner drain pan, state table is installed in upper left quarter in the shell, what it was special goes out to be: the micro controller system in this master control board respectively with step motor drive, indicator lamp, liquid crystal display, the soft-touch type button, the CAN communication interface is connected with the acquisition of signal interface, described step motor drive is connected with state table, the CAN communication interface is connected with supporting vehicle body CAN bus system, vehicle body CAN bus system passes to micro controller system with the status information of car body by the CAN communication interface, after micro controller system is handled information is shown on state table by step motor drive, or send read-out and indicator lamp to; The acquisition of signal interface is sent to micro controller system with the car body signal, after micro controller system is handled information is sent to other controls of car body by the CAN communication interface, or sends read-out, indicator lamp, step motor drive to.This auto meter not only has the multinomial component function of itself more can be shared by CAN communication interface and other information of car body, when if car body certain or a plurality of body electric system break down, chaufeur can show in information and obtains the Chinese character alarm message on the liquid crystal display in real time.
As preferably, described state table comprises average speed indicator, engine speed indicator, water thermometer, oil measurer, and average speed indicator is installed in upper left quarter in the shell, and engine speed indicator is installed below average speed indicator; Average speed indicator and engine speed indicator both sides are installed described water thermometer and oil measurer respectively, handle after the information of step motor drive acceptance from micro controller system again, pass the signal to average speed indicator, engine speed indicator, water thermometer, oil measurer then.Average speed indicator, engine speed indicator, water thermometer, oil measurer accurately and timely parameters such as the operating speed of a motor vehicle of demonstration car body, engine speed, water temperature, oil mass under the real-time control of micro controller system and monitoring.
As preferably, described acquisition of signal interface comprises switching value input, analog quantity input, frequency input, and this acquisition of signal interface is sent to switching value, analog quantity, frequency quantity that micro controller system is handled and transmits.Micro controller system is handled the information that each input port sends over as the central process unit of system, and is sent to the miscellaneous part of car body as required once more, as read-out or annunciator.
As preferably, described information shows that liquid crystal display accepts single mileage, accumulative mileage and the Time of Day of the vehicle that micro controller system sends, and this read-out can receive the status information that vehicle body CAN bus control system sends by the CAN communication interface.By being connected of CAN communication interface and vehicle body CAN bus control system, read-out can show that a large amount of operation information of car body gives chaufeur.
As preferably, described soft-touch type button is 3, and single mileage is removed in this button transmission, sets the signal of date, time and gives micro controller system.Various combination by case uses, and can carry out multi-mode operation.
As preferably, the switching value in the acquisition of signal interfaces such as described switching value, analog quantity, frequency quantity mostly is 16 the tunnel most, and analog quantity is 2 the tunnel, collection be resistance signal; Frequency quantity is 2 the tunnel.
As preferably, described CAN bus system connects digital meter, left-hand door module, right door modular cart, the first module of car, central controlled lock module, tailstock module respectively, the first module of car connects the first electrical equipment of car, and the central controlled lock module connects central controlled lock, vehicle window, side mirror, and tailstock module connects tailstock electrical equipment.
Therefore, the utlity model has characteristics such as rational in infrastructure, powerful, show, instrument, mobile unit are carried out integrated management and control for automobile mechanical equipment and the good operation of electrical equipment provide requisite complete parameter.Especially the CAN communication interface that provided of this digital automobile instrument can vehicle body CAN bus system carry out communication, reaches the function of car body information sharing.Have online testing state and perfect self-diagnosing function in addition, possess good reliability, robustness and cost/effectiveness, the systemic-function expansion is simple, can reach to reduce appliances of saloon car line design difficulty, satisfies the purpose of car harsh environment requirement.
Description of drawings
Accompanying drawing 1 is an instrument electrical principle constructional drawing of the present utility model;
Accompanying drawing 2 is vehicle body CAN network system topology diagrams of the present utility model.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
The utility model is a kind of digital automobile instrument with CAN bus interface, and as shown in Figure 1, this instrument comprises master control board and state table etc., and wherein master control board is installed on the inner drain pan, and state table is installed in upper left quarter in the shell.Master control board comprises micro controller system, step motor drive, indicator lamp, liquid crystal display, soft-touch type button, CAN communication interface and acquisition of signal interface, wherein micro controller system is connected with miscellaneous part respectively, described step motor drive is connected with state table, state table comprises average speed indicator, engine speed indicator, water thermometer, oil measurer, average speed indicator is installed in upper left quarter in the shell, and engine speed indicator is installed below average speed indicator; Average speed indicator and engine speed indicator both sides are installed described water thermometer and oil measurer respectively, the CAN communication interface is connected with supporting vehicle body CAN bus system, the acquisition of signal interface comprises switching value input, analog quantity input, frequency input, switching value in the acquisition of signal interfaces such as described switching value, analog quantity, frequency quantity mostly is 16 the tunnel most, can be according to the vehicle quantification; Analog quantity is 2 the tunnel, collection be resistance signal; Frequency quantity is 2 the tunnel.
The data that micro controller system received signal acquisition interface, soft-touch type button and CAN communication interface in the dominant control sends, classify then, handle, and then result is sent to read-out, indicator lamp, step motor drive or is sent to vehicle body CAN bus system by the CAN communication interface once more.Wherein the information that sends of step motor drive micro controller system is further processed, and is sent to state tables such as average speed indicator, engine speed indicator, water thermometer, oil measurer.
Wherein the CAN communication interface is followed the CAN2.0B communications protocol, can carry out communication with supporting vehicle body CAN bus system, obtains required failure diagnosis information from bus.This interface can also be delivered to the semaphore that instrument collected on the bus with CAN2.0B communications protocol form, shares data with other unit.Wherein 3 soft-touch type keypress functions mainly are to remove the single mileage, set parameters such as date, time, turn over screen and check failure diagnosis information.Can show parameters such as single mileage, accumulative mileage, date, time when wherein information shows liquid crystal display vehicle normal operation, after instrument and the networking of vehicle body CAN bus control system, when if certain or a plurality of body electric system break down, information shows that liquid crystal display can provide the Chinese character alarm message in real time.
Fig. 2 is a vehicle body CAN network system topology diagram, the CAN bus system connects digital meter, left-hand door module, right door modular cart, the first module of car, central controlled lock module, tailstock module respectively, the first module of car connects the first electrical equipment of car, the central controlled lock module connects central controlled lock, vehicle window, side mirror, and tailstock module connects tailstock electrical equipment.
Claims (7)
1. digital automobile instrument with CAN bus interface, master control board is installed on the inner drain pan, state table is installed in upper left quarter in the shell, it is characterized in that: the micro controller system in this master control board respectively with step motor drive, indicator lamp, liquid crystal display, the soft-touch type button, the CAN communication interface is connected with the acquisition of signal interface, described step motor drive is connected with state table, the CAN communication interface is connected with supporting vehicle body CAN bus system, vehicle body CAN bus system passes to micro controller system with the status information of car body by the CAN communication interface, after micro controller system is handled information is shown on state table by step motor drive, or send read-out and indicator lamp to; The acquisition of signal interface is sent to micro controller system with the car body signal, after micro controller system is handled information is sent to other controls of car body by the CAN communication interface, or sends read-out, indicator lamp, step motor drive to.
2. the digital automobile instrument with CAN bus interface according to claim 1, it is characterized in that: described state table comprises average speed indicator, engine speed indicator, water thermometer, oil measurer, average speed indicator is installed in upper left quarter in the shell, and engine speed indicator is installed below average speed indicator; Average speed indicator and engine speed indicator both sides are installed described water thermometer and oil measurer respectively, handle after the information of step motor drive acceptance from micro controller system again, pass the signal to average speed indicator, engine speed indicator, water thermometer, oil measurer then.
3. the digital automobile instrument with CAN bus interface according to claim 1 and 2, it is characterized in that: described acquisition of signal interface comprises switching value input, analog quantity input, frequency input, and this acquisition of signal interface is sent to switching value, analog quantity, frequency quantity that micro controller system is handled and transmits.
4. the digital automobile instrument with CAN bus interface according to claim 1 and 2, it is characterized in that: described information shows that liquid crystal display accepts single mileage, accumulative mileage and the Time of Day of the vehicle that micro controller system sends, and this read-out can receive the status information that vehicle body CAN bus control system sends by the CAN communication interface.
5. the digital automobile instrument with CAN bus interface according to claim 1 and 2 is characterized in that: described soft-touch type button is 3, and the single mileage is removed in this button transmission, sets the signal of date, time and gives micro controller system.
6. the digital automobile instrument with CAN bus interface according to claim 1 and 2, it is characterized in that: the switching value in the acquisition of signal interfaces such as described switching value, analog quantity, frequency quantity mostly is 16 the tunnel most, analog quantity is 2 the tunnel, collection be resistance signal; Frequency quantity is 2 the tunnel.
7. the digital automobile instrument with CAN bus interface according to claim 1 and 2, it is characterized in that: described CAN bus system connects digital meter, left-hand door module, right door modular cart, the first module of car, central controlled lock module, tailstock module respectively, the first module of car connects the first electrical equipment of car, the central controlled lock module connects central controlled lock, vehicle window, side mirror, and tailstock module connects tailstock electrical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620141554 CN200988431Y (en) | 2006-12-27 | 2006-12-27 | Digital automobile instrument with CAN assembly interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620141554 CN200988431Y (en) | 2006-12-27 | 2006-12-27 | Digital automobile instrument with CAN assembly interface |
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| Publication Number | Publication Date |
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| CN200988431Y true CN200988431Y (en) | 2007-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620141554 Expired - Fee Related CN200988431Y (en) | 2006-12-27 | 2006-12-27 | Digital automobile instrument with CAN assembly interface |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776468A (en) * | 2010-02-12 | 2010-07-14 | 深圳市元征软件开发有限公司 | Automobile combined meter having automobile electric control diagnosis function and diagnosis method thereof |
| CN101961982A (en) * | 2009-07-22 | 2011-02-02 | 四平慧宇仪表电气有限公司 | Digital automobile instrument of analogue signal sampling and automatic calibration |
| CN102368382A (en) * | 2011-12-05 | 2012-03-07 | 天津市津天温度仪表科技有限公司 | Vehicular LCD (Liquid Crystal Display) imitation screen |
| CN102692246A (en) * | 2012-06-02 | 2012-09-26 | 滁州市康达叉车零部件制造有限公司 | Virtual programmable engineering vehicle instrument system based on CAN (controlled area network) bus |
| CN103713585A (en) * | 2013-06-09 | 2014-04-09 | 金华市佳图高新电子科技有限公司 | Vehicle-mounted information acquisition system |
| CN106569452A (en) * | 2016-11-04 | 2017-04-19 | 无锡市普欧电子有限公司 | Bus air conditioning system based on CAN control |
| CN113012583A (en) * | 2021-03-19 | 2021-06-22 | 中国舰船研究设计中心 | Special display unit for digital instrument |
-
2006
- 2006-12-27 CN CN 200620141554 patent/CN200988431Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961982A (en) * | 2009-07-22 | 2011-02-02 | 四平慧宇仪表电气有限公司 | Digital automobile instrument of analogue signal sampling and automatic calibration |
| CN101961982B (en) * | 2009-07-22 | 2013-04-24 | 四平慧宇仪表电气有限公司 | Digital automobile instrument of analogue signal sampling and automatic calibration |
| CN101776468A (en) * | 2010-02-12 | 2010-07-14 | 深圳市元征软件开发有限公司 | Automobile combined meter having automobile electric control diagnosis function and diagnosis method thereof |
| CN101776468B (en) * | 2010-02-12 | 2015-07-22 | 深圳市元征软件开发有限公司 | Automobile combined meter having automobile electric control diagnosis function and diagnosis method thereof |
| CN102368382A (en) * | 2011-12-05 | 2012-03-07 | 天津市津天温度仪表科技有限公司 | Vehicular LCD (Liquid Crystal Display) imitation screen |
| CN102368382B (en) * | 2011-12-05 | 2013-05-01 | 天津市津天温度仪表科技有限公司 | Vehicular LCD (Liquid Crystal Display) imitation screen |
| CN102692246A (en) * | 2012-06-02 | 2012-09-26 | 滁州市康达叉车零部件制造有限公司 | Virtual programmable engineering vehicle instrument system based on CAN (controlled area network) bus |
| CN103713585A (en) * | 2013-06-09 | 2014-04-09 | 金华市佳图高新电子科技有限公司 | Vehicle-mounted information acquisition system |
| CN106569452A (en) * | 2016-11-04 | 2017-04-19 | 无锡市普欧电子有限公司 | Bus air conditioning system based on CAN control |
| CN113012583A (en) * | 2021-03-19 | 2021-06-22 | 中国舰船研究设计中心 | Special display unit for digital instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: ZHEJIANG JILI HOLDING GROUP CO., LTD. ^ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Zhejiang Geely Holding Group Company Limited Number: 50 Page: The title page Volume: 23 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Zhejiang Geely Holding Group Company Limited Number: 50 Volume: 23 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ^ TO: ZHEJIANG JILI HOLDING GROUP CO., LTD. ^ |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 Termination date: 20131227 |