CN101701963A - System for displaying automobile speed in automobile instrument - Google Patents
System for displaying automobile speed in automobile instrument Download PDFInfo
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- CN101701963A CN101701963A CN200910185072A CN200910185072A CN101701963A CN 101701963 A CN101701963 A CN 101701963A CN 200910185072 A CN200910185072 A CN 200910185072A CN 200910185072 A CN200910185072 A CN 200910185072A CN 101701963 A CN101701963 A CN 101701963A
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Abstract
The invention discloses a system for displaying the automobile speed in an automobile instrument, comprising an automobile speed signal and an entire-automobile illuminating regulating signal which are respectively transmitted to a controller of the automobile body. The system is characterized in that the controller of the automobile body is connected with both an automobile instrument LCD module and an LED indicating lamp module, and the pulse width modulation signal of the controller of the automobile body is connected with the cathode of the backlight illuminating LED of the automobile instrument LCD module and the anode of the LED indicating lamp module. With the structure, the system adopting an LCD can precisely displaying the running speed of the automobile, the system adopting a plurality of indicating lamps can ensure that the driver can intuitively feel the change of the running speed the automobile and the maximum speed of the automobile per hour, and the system can regulate the brightness of the backlight of both the automobile instrument LCD module and the LED indicating lamp module by changing the pulse width modulation signal.
Description
Relate to the field
The present invention relates to automobile combination meter, particularly a kind of system for displaying automobile speed in automobile instrument.
Background technology
Continuous development along with auto industry, people are also more and more higher to the requirement of the degree of accuracy of automobile instrument, the speed of a motor vehicle of conventional instrument shows it is that indication by pointer conveys to the driver and passenger, often there is the not high defective of precision, for present car, especially sport car, the response of its pointing accuracy and transient change more driver and passenger is paid close attention to.Traditional so pointer speed of a motor vehicle Displaying Meter just can not satisfy this requirement.And the travelling speed that only adopts the digital display automobile makes the driver can only see current speed, can't know the information of the automobile design maximum speed of a motor vehicle, when the speed of a motor vehicle changed, the driver can only see that numeral but can't be from intuitively experiencing the intensity of variation of the speed of a motor vehicle in saltus step.
Provide a kind of novel system for displaying automobile speed in automobile instrument, not only the speed of display automobile operation accurately but also can be so that the driver feels that intuitively the variation of car speed and the maximum speed per hour of automobile are the problems that prior art need solve.
Summary of the invention
Technical matters to be solved by this invention is, a kind of system for displaying automobile speed in automobile instrument is provided, with the speed that reaches not only display automobile operation accurately but also can be so that the driver feels the purpose of the maximum speed per hour of the variation of car speed and automobile intuitively.
For solving the problems of the technologies described above, technical scheme of the present invention is a kind of system for displaying automobile speed in automobile instrument, comprise that vehicle speed signal, car load illumination adjustments signal pass to car body controller respectively, it is characterized in that: car body controller be connected with the LED light module with instrument LCD panel module respectively, the pulse width modulating signal of car body controller is connected with the back lighting LED negative pole of instrument LCD panel module and the positive pole of LED light respectively, thereby realizes the accurate demonstration of the speed of a motor vehicle and make the driver feel the variation of car speed and the maximum speed per hour of automobile intuitively.
A kind of system for displaying automobile speed in automobile instrument, described car body controller drives a plurality of LED light by the LED chip for driving, thereby realizes making the driver feel the variation of automobile speed more intuitively by LED light.
A kind of system for displaying automobile speed in automobile instrument, the LED light number of described LED light module is more than ten or ten, and is arranged in semicircle.
A kind of system for displaying automobile speed in automobile instrument, the pulse width modulating signal of described car body controller be connected with the positive pole of LED light by chip I TS4140N again after the negative pole of the back lighting LED of instrument LCD panel module is connected, simultaneously the backlight illumination of instrument LCD panel module and LED light is regulated with realization.
A kind of system for displaying automobile speed in automobile instrument, the model of described LED chip for driving are 74HC596.
A kind of system for displaying automobile speed in automobile instrument, owing to adopt said structure, this system has the following advantages: the speed that 1, adopts LCD display automobile speed to make native system display automobile operation accurately; 2, because a plurality of LED light of employing again can be so that the driver feels the variation of car speed and the maximum speed per hour of automobile intuitively; 3, realize the backlight illumination of instrument LCD panel module and LED light module is regulated by changing pulse width modulating signal.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments;
Fig. 1 is the system framework figure of a kind of system for displaying automobile speed in automobile instrument of the present invention;
Fig. 2 is the fundamental diagram of a kind of system for displaying automobile speed in automobile instrument of the present invention;
In Fig. 1-2,1, car body controller; 2, LED light module; 3, instrument LCD panel module; 4, LED light; 5, LED chip for driving; 6, back lighting LED; 7, instrument LCD screen; 8, car load illumination adjustments signal; 9, vehicle speed signal.
Embodiment
Shown in Fig. 1-2, a kind of system for displaying automobile speed in automobile instrument, comprise that vehicle speed signal 9, car load illumination adjustments signal 8 pass to car body controller 1 respectively, it is characterized in that: car body controller 1 be connected with LED light module 2 with instrument LCD panel module 3 respectively, the pulse width modulating signal of car body controller 1 is connected with the negative pole of the back lighting LED6 of instrument LCD panel module 3 and the positive pole of LED light 4 respectively, thereby realizes the accurate demonstration of the speed of a motor vehicle and make the driver feel the variation of car speed and the maximum speed per hour of automobile intuitively.
LED light 4 numbers of LED light module 2 are more than ten or ten, and are arranged in semicircle.
The pulse width modulating signal of car body controller 1 be connected with the positive pole of LED light 4 by chip I TS4140N again after the negative pole of the back lighting LED6 of instrument LCD panel module 3 is connected, simultaneously the backlight illumination of instrument LCD panel module and LED light is regulated with realization.
A kind of system for displaying automobile speed in automobile instrument, the model of described LED chip for driving are 74HC596.
The numerical value that directly shows the speed of a motor vehicle on LCD, the ability of response and easily allow the driver read is fast open-and-shutly known current vehicle speed value.But such design remains and has defective.The driver can only see current speed, but can't know the information of the design maximum speed of a motor vehicle, and when the speed of a motor vehicle changed, the driver can only see that numeral but can't be from intuitively experiencing the intensity of variation of the speed of a motor vehicle in variation.The state that utilizes light emitting diode to be arranged in pointer scale characterizes speed information intuitively, has effectively solved above-mentioned problem.
In order to guarantee that light is soft not dazzling, especially at driving at night, the driver can not be attracted too much attention because the speed of a motor vehicle changes the on and off of the vehicle speed indication lamp cause, utilizes adjusting backlight to control the brightness of the backlight and speed of a motor vehicle indication LED of LCD.This conditioning signal backlight uses the unified conditioning signal backlight of car load in fact from the illumination adjustments signal of automobile itself, makes the backlight illumination of LCD on the combination instrument and the brightness of speed of a motor vehicle indication LED and the brightness of other inner rooms illumination be consistent.And can regulate by unified car load regulating system backlight.
This system employs following two kinds of means represent speed information, the one, the vehicle speed data form with numeric character strictly according to the facts that collects is presented on the instrument LCD panel module 3, the 2nd, utilize the combination of LED light module to embody the effect of a directly perceived and dynamic change vehicle speed signal that collects.
The indication of the numeral speed of a motor vehicle:
Master control car body controller 1 receives after the vehicle speed signal 9, handles by the LCD driving to show the speed of a motor vehicle on instrument LCD panel module 3.Because be digitized indicating mode, in case main control chip detect input signal variation then can feeding back on the lcd screen with the data in real time that changes.
The indication of the LED light module simulation speed of a motor vehicle:
Concrete way is with the max speed 20 equal portions (not limiting to can be more), the max speed 240Km/h for example, and 20 parts of equal portions on a semicircle index dial then, wherein on behalf of each little lattice of 12Km/h., each lattice all utilize a LED to throw light on.For example when vehicle is exercised with 100Km/h, show on the instrument LCD panel module 3 that speed of a motor vehicle numerical value 100Km/h has 9 little lattice to light simultaneously; When the speed of a motor vehicle drops to 80Km/h, show on the instrument LCD screen that the little lattice that speed of a motor vehicle numerical value 80Km/h lights simultaneously can extinguish 2, become 7.Give the driver and passenger impression of going up speed of a motor vehicle variation directly perceived, see and need not stare at instrument.And if see down the vehicle speed data on the LCD and the quantity of the speed of a motor vehicle LED light 4 that lights at present, just can roughly calculate the fastest speed of a motor vehicle can reach what.
Illuminator:
Back lighting has directly had influence on display effect as very important assisting of indication mechanism.If it is undesirable that back lighting is handled, this system also can can't use because of allowing the driver and passenger feel uncomfortable.The invention provides a kind of Circuits System of adjusting backlight, cooperate above-mentioned two speed of a motor vehicle indication mechanisms, reach even back, the consistent regulating effect that changes, make things convenient for the driver and passenger to select own optimum brightness.
As shown in Figure 2, combination instrument is handled the illumination sign 8 that car load is imported by car body controller 1, changes into pulse width modulating signal need be regulated brightness for all dial illuminations subsystem use.
Backlight of general illumination such as LCD need come the negative pole of driving LED with the pulse width modulating signal of illumination output, can finish the adjusting of brightness.Pulse width modulating signal utilizes varying in size of its dutycycle to make the LED light present different strong and weak degree at human eye, and being human eye actually postpones integrator as one, with the bright integral mean of LED.
And as the LED of speed of a motor vehicle indication, bright because not all LED needs, and the on and off of these LED are subjected to the software control of car body controller 1, so the negative terminal of these LED is subjected to car body controller 1 its light on and off of regulation and control via LED chip for driving 74HC596.Anode utilizes the instrument pulse width modulating signal to export equally and regulates its brightness by the chip grafting of ITS4140N.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the method design of invention and the various improvement that technical scheme is carried out; or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (5)
1. system for displaying automobile speed in automobile instrument, comprise that vehicle speed signal (9), car load illumination adjustments signal (8) pass to car body controller (1) respectively, it is characterized in that: car body controller (1) be connected with LED light module (2) with instrument LCD panel module (3) respectively, the pulse width modulating signal of car body controller (1) is connected with the negative pole of the back lighting LED (6) of instrument LCD panel module (3) and the positive pole of LED light (4) respectively.
2. a kind of system for displaying automobile speed in automobile instrument according to claim 1 is characterized in that: described car body controller (1) drives a plurality of LED light (4) by LED chip for driving (5).
3. a kind of system for displaying automobile speed in automobile instrument according to claim 2 is characterized in that: LED light (4) number of described LED light module (2) is more than ten or ten, and is arranged in semicircle.
4. a kind of system for displaying automobile speed in automobile instrument according to claim 1 is characterized in that: the pulse width modulating signal of described car body controller (1) be connected with the positive pole of LED light (4) by chip I TS4140N again after the negative pole of the back lighting LED (6) of instrument LCD panel module (3) is connected.
5. a kind of system for displaying automobile speed in automobile instrument according to claim 2 is characterized in that: the model of described LED chip for driving (5) is 74HC596.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910185072A CN101701963A (en) | 2009-10-29 | 2009-10-29 | System for displaying automobile speed in automobile instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910185072A CN101701963A (en) | 2009-10-29 | 2009-10-29 | System for displaying automobile speed in automobile instrument |
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| CN101701963A true CN101701963A (en) | 2010-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910185072A Pending CN101701963A (en) | 2009-10-29 | 2009-10-29 | System for displaying automobile speed in automobile instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102131330A (en) * | 2011-01-13 | 2011-07-20 | 科蒂斯仪器(中国)有限公司 | Circuit system of LED (light-emitting diode) display module of solid-state vehicle meter |
| CN103809728A (en) * | 2012-11-09 | 2014-05-21 | 和硕联合科技股份有限公司 | Electronic device and power saving method thereof |
| CN104908661A (en) * | 2014-03-12 | 2015-09-16 | 华创车电技术中心股份有限公司 | Interactive vehicle system |
-
2009
- 2009-10-29 CN CN200910185072A patent/CN101701963A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102131330A (en) * | 2011-01-13 | 2011-07-20 | 科蒂斯仪器(中国)有限公司 | Circuit system of LED (light-emitting diode) display module of solid-state vehicle meter |
| CN102131330B (en) * | 2011-01-13 | 2013-12-18 | 科蒂斯仪器(中国)有限公司 | Circuit system of LED (light-emitting diode) display module of solid-state vehicle meter |
| CN103809728A (en) * | 2012-11-09 | 2014-05-21 | 和硕联合科技股份有限公司 | Electronic device and power saving method thereof |
| CN103809728B (en) * | 2012-11-09 | 2017-01-04 | 和硕联合科技股份有限公司 | Electronic device and power saving method thereof |
| CN104908661A (en) * | 2014-03-12 | 2015-09-16 | 华创车电技术中心股份有限公司 | Interactive vehicle system |
| CN104908661B (en) * | 2014-03-12 | 2017-09-08 | 华创车电技术中心股份有限公司 | Interactive vehicle systems |
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Open date: 20100505 |