CN102207430A - Method for detecting automobile driving parameter and automobile digital meter - Google Patents
Method for detecting automobile driving parameter and automobile digital meter Download PDFInfo
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- CN102207430A CN102207430A CN2010101504430A CN201010150443A CN102207430A CN 102207430 A CN102207430 A CN 102207430A CN 2010101504430 A CN2010101504430 A CN 2010101504430A CN 201010150443 A CN201010150443 A CN 201010150443A CN 102207430 A CN102207430 A CN 102207430A
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Abstract
The invention relates to the automobile detection field, and discloses a method for detecting automobile driving parameters and an automobile digital meter. The method comprises the steps that: a processor sends a driving parameter reading instruction to a CAN (Control Area Network) bus driver, the CAN bus driver converts the instruction into an analog bus signal and sends the analog bus signal to a CAN bus of automobile body; according to the received instruction, an automobile control system sends current automobile driving parameter information to the CAN bus driver via the CAN bus, the processor receives a detection signal sent by an external detector to determine the automobile driving parameter information to which the detection signal is corresponding and then outputs the received automobile driving parameter information to an LED (Light Emitting Diode) driving module, the LED driving module drives an LED display module, and the LED display module displays the current automobile driving parameter information. Low cost and high precision are realized by adopting the technical proposal for detection.
Description
Technical field
The present invention relates to the automobile field of detecting, relate in particular to a kind of method and automobile digitalization instrument of surveying the running parameter.
Background technology
Major part is used for the pointer compass Displaying Meter of automotive electronics and Industry Control at present, the size influence of the precision of data presentation, scope and real gauge outfit, if the volume of gauge outfit is less, can make that the sensing of pointer is not easy to identify, make troubles to the user, if and gauge outfit is done very greatly, then can take limited display space again, make demonstration become crowded.
In addition, because the display precision of pointer compass need be relevant with the size of pointer gauge outfit, if so on the instrument of existing structure bigger with top-of-form set, then the number of parameters of instrument demonstration will be restricted, cause the detection information of instrument less, if and less with top-of-form set, then the precision of Xian Shiing can be lower, so showing, traditional instrument have the existence of pointer watch dial to become seldom to other data messages that the user provides, on display precision, influenced by the list cell size, display precision is low.In addition, the instrument of traditional pointer-type is limited serviceable life, the cost height.
Summary of the invention
The present invention's first purpose is: a kind of method of surveying the running parameter is provided, adopts this detection method cost low, the precision height.
The present invention's second purpose is: provide a kind of digitizing to show, adopt this detection method cost low, the precision height.
A kind of method of surveying the running parameter that the embodiment of the invention provides comprises:
Processor sends to the CAN bus driver and reads the driving parameter instruction, includes the driving parameter type that need read in described instruction;
Described CAN bus driver changes into the emulation bus signal with described instruction, the instruction of described emulation bus signal form is sent to the CAN bus of vehicle body;
Automotive control system sends current running parameter information by described CAN bus to described CAN bus driver according to the instruction of receiving,
Described processor receives the detectable signal that outer locator sends, and determines the running parameter information of described detectable signal correspondence,
Described processor exports the running parameter information that receives to described LED driver module,
Described LED driver module drives described LED display module, and the LED display module shows current running parameter information.
Alternatively, in step: processor also comprised before the running parameter instruction is read in the transmission of CAN bus driver:
Processor is determined the type of the running parameter that the active user need read according to the setting command of user's input;
Processor sends to the CAN bus driver and reads the running parameter instruction, specifically:
Processor sends to described CAN bus driver and reads the running parameter instruction, comprises the type of the running parameter that need read in described instruction.
Alternatively, described processor exports described running parameter information to described LED driver module, specifically:
Described processor inputs to pattern process module with described running parameter information,
Described pattern process module obtains graphical information with described running parameter information graphical treatment;
Described pattern process module exports described graphical information to described LED driver module.
Alternatively, the detectable signal of described outer locator transmission is oil mass detectable signal, water temperature detectable signal, speed detecting signal, speed detection signal;
Described processor is determined the running parameter information of described detectable signal correspondence, specifically:
Described processor is inquired about the oil mass mapping table of comparisons, the water temperature mapping table of comparisons that prestores respectively, determines the fuel quantity parameter of the voltage correspondence of current oil mass detectable signal, water temperature detectable signal, the numerical value of water temperature parameter,
The speed of a motor vehicle mapping table of comparisons that described processor inquiry prestores, the rotating speed mapping table of comparisons are determined the speed of a motor vehicle of the frequency values correspondence of current vehicle speed detectable signal, speed detection signal, the numerical value of rotating speed.
Alternatively, in step: described processor also comprises after receiving the detectable signal of outer locator transmission:
When data arrive described CAN bus interface, interrupt, described processor is carried out described step in Interrupt Process: the running parameter information of determining described detectable signal correspondence.
A kind of automobile digitalization instrument that present embodiment provides comprises: face-piece,
Described face-piece is provided with the LED display module, is used to insert the CAN bus interface of CAN bus and the sensor interface that is used to insert sensor;
In described face-piece, also be provided with CAN bus driver, processor, LED driver module,
Described CAN bus driver is electrically connected with described CAN bus interface, and described processor is electrically connected with described CAN bus driver, sensor interface, LED driver module respectively, and described LED driver module is electrically connected with described LED display module; Wherein,
Described CAN bus driver is used to change the communication information between the CAN bus of described processor and vehicle body: the digital signal instruction transformation that processor is sent becomes the emulation bus signal, and the emulation bus conversion of signals is become digital signal,
Described processor is used for the running parameter information of described CAN bus driver and the input of described sensor interface is sent to described LED driver module,
Described LED driver module is used to drive described LED display module, and described LED display module is used to show described running parameter information.
Alternatively, also be provided with button on described face-piece surface,
Also be provided with the button inputting circuits that is electrically connected with described button in described face-piece, described button inputting circuits is used for importing user's setting command for the user, comprises in described user's setting command: the running parameter type that the current needs of user read;
Described button inputting circuits is electrically connected with described processor, and described processor also comprises:
Show submodule is set, be electrically connected, be used for described LED driver module being set, in described LED display module, to show the running parameter type information that the current needs of described user read according to described user's setting command with described button inputting circuits.
Alternatively, described processor also comprises the graphics process sub-processor,
Described figure sub-processor is connected with described LED driver module, is used for described running parameter information graphical treatment is obtained graphical information, inputs to described LED driver module.
Alternatively, the detectable signal of described outer locator transmission is oil mass detectable signal, water temperature detectable signal, speed detecting signal, speed detection signal;
Described processor also comprises the oil mass mapping table of comparisons, the water temperature mapping table of comparisons, the speed of a motor vehicle mapping table of comparisons, the rotating speed mapping table of comparisons,
The described oil mass mapping table of comparisons, the water temperature mapping table of comparisons prestore the corresponding relation of the numerical value of the voltage of oil mass detectable signal, water temperature detectable signal and oil mass, water temperature respectively,
The described speed of a motor vehicle mapping table of comparisons prestores the speed of a motor vehicle numerical value of the frequency correspondence of speed detecting signal;
The described rotating speed mapping table of comparisons prestores the speed revolution value of the frequency correspondence of speed detection signal:
Described processor also comprises enquiry module, described enquiry module is used for inquiring about respectively the described oil mass mapping table of comparisons, the water temperature mapping table of comparisons, the speed of a motor vehicle mapping table of comparisons, the rotating speed mapping table of comparisons, determines current oil mass detectable signal and water temperature detectable signal, speed detecting signal, speed detection signal value corresponding respectively respectively.
Therefore, use the technical scheme of the embodiment of the invention, the vehicle body parameter of obtaining current automobile on the instrument respectively by vehicle body CAN bus and outside acquisition sensor is surveyed in the automobile digitizing, shows each current running parameter information by the LED display module.With respect to prior art, not only can solve the problem that real number of parameters is very few, the pointer pointing accuracy is not high that pointer instrument exists.In addition, adopt this technical scheme, can also make full use of the CAN bus of vehicle body, obtain the basic running information of automobile, make and survey the more abundant information that obtains, and the structure of detector is simpler, is convenient to the maintenance of people to automobile more by the CAN bus.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute to improper qualification of the present invention, in the accompanying drawings:
A kind of schematic flow sheet of surveying the method for running parameter that Fig. 1 provides for the embodiment of the invention 1;
A kind of schematic flow sheet of surveying the method for running parameter that Fig. 2 provides for the embodiment of the invention 2;
A kind of schematic flow sheet of surveying the method for running parameter that Fig. 3 provides for the embodiment of the invention 3;
The structural representation of a kind of automobile digitalization instrument that Fig. 4 provides for the embodiment of the invention 4;
The structural representation of a kind of automobile digitalization instrument that Fig. 5 provides for the embodiment of the invention 5;
The structural representation of a kind of automobile digitalization instrument that Fig. 6 provides for the embodiment of the invention 6;
The structural representation of a kind of automobile digitalization instrument that Fig. 7 provides for the embodiment of the invention 7.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1:
A kind of schematic flow sheet of surveying the method for running parameter that Fig. 1 provides for the embodiment of the invention 1, referring to shown in Figure 1, this flow process mainly may further comprise the steps:
Step 101: processor sends to the CAN bus driver and reads the running parameter instruction.
The running parameter instruction is read in the CAN bus driver transmission of processor on this instrument of surveying on the instrument, and current running parameter is read in request.Processor can but be not limited to read and comprise the running parameter type that current needs read in the running parameter instruction at this so that read
Wherein this running parameter comprises: the various status informations and/or the failure diagnosis information of vehicle body.
Step 102:CAN bus driver changes into the emulation bus signal with order parameter, and the emulation bus signal that conversion is obtained sends to the CAN bus of vehicle body.
The CAN bus driver changes into the emulation bus signal that adapts to CAN bus transfer form to the signal of processor, and after conversion, will read the CAN bus transfer of running parameter instruction by vehicle body in the intrinsic automotive control system of vehicle body after the conversion.
Step 103: automotive control system reads the running parameter instruction according to what receive, current running parameter information is sent to the CAN bus driver by the CAN bus, and the CAN bus driver will read the running parameter information that obtains and send to processor.
Automotive control system is according to the instruction of receiving, in the control system of vehicle body, read the running parameter information of response, and the information that reads is sent on the CAN bus of this vehicle body, with CAN bus these information are sent on the CAN bus driver of instrument by CAN interface between vehicle body CAN bus and the detection instrument by vehicle body, transfer to processor for it, handle for processor:.
In automotive electronics, the CAN bus is designed as the microcontroller communication in the automotive environment, and exchange message between the processor of each Vehicular electronic control unit forms the Vehicle Electronic Control network.So include most running information in the CAN bus, such as: the opening and closing of steering indicating light, the size of battery electric quantity etc.
Such as, in automobile, mainly contain: the snubber assembly of bringing to a halt (Anti-Lock Braking System by CAN bus communication electrons transmitted control device, abbreviation ABS), electronic control system (ElectronicControl Unit, abbreviation ECU), engine management system (Engine Management System, abbreviation EMS), panel board group (Instrument Cluster Unit is called for short ICU).These electronic-controlled installations also all have processor separately, picture ECU common name car running computer, it is exactly to carry out computing, processing, judgement according to the information that the program of its internal memory and data are taken into account various sensors inputs to air mass flow, output order then, the electric impulse signal that certain width is provided to fuel injector is with the control distributive value.We just can use the sensor information that these systems obtain or the information of some drivings to show, it is driving states, the processor of concrete digital instrument and the (size of data that comprises communication of communicating by letter of these systems, any implication is represented in each position of data message, and which system which data message represents) communication protocol that can provide according to different car manufactures does different processing.
Step 104: processor receives the detectable signal that outer locator sends, and determines the numerical value of the running parameter of each detectable signal correspondence.
This step is that step 101 is to 103 parallel steps.
In order to obtain some the running parameter information in the more automobile, in this detection method,,, obtain more running parameter information by the mode that outer locator is surveyed also by surveying instrument access outer locator.
Processor according to detectable signal determine the detectable signal correspondence the running parameter information can but be not limited to realize by following technical scheme:
Respectively by oil mass acquisition sensor, water temperature acquisition sensor, speed of a motor vehicle acquisition sensor, rotating speed acquisition sensor: survey respectively automobile information such as oil mass, water temperature, the speed of a motor vehicle, rotating speed,, oil mass acquisition sensor, water temperature acquisition sensor are respectively to processor input voltage detectable signal, processor is inquired about the oil mass mapping table of comparisons, the water temperature mapping table of comparisons that prestores respectively, determines the fuel quantity parameter of the voltage correspondence of current oil mass detectable signal, water temperature detectable signal, the numerical value of water temperature parameter; Processor is inquired about the speed of a motor vehicle mapping table of comparisons, the rotating speed mapping table of comparisons that prestores respectively, determines the speed of a motor vehicle of the frequency values correspondence of current vehicle speed detectable signal, speed detection signal, the numerical value of rotating speed.
Measured signal has water temperature in the application of automotive electronics, oil mass size (oil meter), vehicle speed signal, tach signal etc.
Usually for water temperature and oil mass signal: different water temperatures and oil mass, the resistance difference of corresponding resistance, the voltage of the detectable signal that acquisition sensor obtains is also just different, just can obtain different water temperatures or oil temperature by table look-up (this table has parameter values corresponding voltage value such as water temperature, oily temperature).
And for the speed of a motor vehicle, rotating speed, the different speed of a motor vehicle, rotating speed can send the pulse signal of different frequencies, can be by detecting the frequency of input signal, (this table is by the frequency values of input signal corresponding under the different speed of a motor vehicle, the rotating speed) can determine the current speed of a motor vehicle, rotating speed by tabling look-up.
Step 105: processor exports the running parameter information that receives to the LED driver module.
Processor on the detection instrument sends to the LED driver module with current all running parameter informations that get access to after step 103,104, to start the LED driver module.
In this step, processor can be undertaken by the mode that interrupt event is handled.Such as, but be not limited to as follows:
Receive the CAN packet (emulation bus signal) of CAN interface transmission at processor after, the CAN interface bus will produce interruption, processor storage packet, at this moment, a sign can be set in interruption, processor determines whether that according to sign new data arrive, if new data are arranged, processor will produce the current new data packets that receives of Interrupt Process.
The data layout that processor is supported according to current LED driver module, the data that receive are analyzed and handled, be converted into the data layout that meets current LED driver module use, and then send to the LED driver module, such as the graphic display mode among the embodiment 2.
Step 106:LED driver module driving LED display module, the LED display module shows current running parameter information.
The LED driver module is under the control of processor, and the LED driver module shows the running information that current automobile digitizing detection instrument detects according to the driver driving LED display module of setting on the LED display module.
The LED screen need be according to different needs, designing different display message definition needs the position and the section of demonstration, processor allows drive IC go the driving LED screen to light different fields by sending different data to LED driver module (drive IC), just can show needed information.
Therefore, owing to use the technical program, survey instrument is obtained current automobile respectively by vehicle body CAN bus and outside acquisition sensor vehicle body parameter in the automobile digitizing, show each current running parameter information by the LED display module.With respect to prior art, not only can solve the problem that real number of parameters is very few, the pointer pointing accuracy is not high that pointer instrument exists.In addition, adopt this technical scheme, can also make full use of the CAN bus of vehicle body, obtain whole running informations of automobile, make and survey the more abundant information that obtains, and the structure of detector is simpler, is convenient to the maintenance of people to automobile more by the CAN bus.
Embodiment 2:
A kind of method flow synoptic diagram of surveying the running parameter that Fig. 2 provides for present embodiment, referring to shown in Figure 2, present embodiment is with respect to 1 difference of embodiment:
Step 101 in embodiment 1 (processor sends to the CAN bus driver and reads the running parameter instruction) also comprises before:
Step 201: processor is determined the type of active user's display automobile driving parameter according to the setting command of user's input.
In the present embodiment, the user can set the type of the running parameter of current needs detection according to current demonstration needs.Such as setting the current type that needs the running parameter of detection by button operation or other mode.
Step 202: processor is according to user's instruction, and the driving LED driver module is to revise the display interface on the LED display module, so that the running parameter information of the current needs demonstration of explicit user thereon.
Such as: use this method and can read the current running information that we need by automotive control system by the CAN bus.Such as: we can obtain the average fuel consumption and the instantaneous oil consumption of current running car by the CAN bus, and what the user need show is average oil consumption or instantaneous oil consumption, and the user can go to select by instruction is set, and the temporal information of demonstration can also be set.
Therefore because the user can also pass through User Defined in the present embodiment, determining need be from the running information that shows, the dirigibility that helps surveying makes the more abundant information of surveying further to help user's detection, maintenance.
Embodiment 3:
A kind of schematic flow sheet of surveying the method for running parameter that Fig. 3 provides for present embodiment, referring to shown in Figure 3, present embodiment is with respect to 2 differences of embodiment:
Step 105 specifically is made of following substep:
Step 301: processor inputs to pattern process module with the current running parameter information that needs to show.
Processor is after the CAN driving governor that receives instrument and outside acquisition sensor transmit the running parameter, with the pattern process module of these information transmission to its subordinate.
Step 302: pattern process module obtains graphical information with the running parameter information graphical treatment that receives.
Pattern process module carries out graphical treatment to the running parameter information graphical treatment that receives, to obtain graph of a correspondence information.
Step 303: pattern process module exports graphical information to the LED driver module.
Pattern process module outputs to the LED driver module with graphical information, so that LED driver module driving LED display module shows current running parameter information, user friendly reading with patterned form on the LED display module.
Therefore, can also on the digital LED display module, show current running parameter information to the user by the graphical treatment of information in the present embodiment with patterned form, further facilitate user's reading, analyzing to parameter.
Embodiment 4:
Referring to shown in Figure 4, the structural representation of a kind of automobile digitalization instrument that provides for present embodiment, referring to shown in Figure 4, this digitizing instrument structure is mainly as follows:
Face-piece (not drawing among the figure) is provided with LED display module 406, be used to the sensor interface 401 that inserts the CAN bus interface 402 of CAN bus and be used to insert sensor.
In face-piece, also be provided with CAN bus driver 403, processor 404, LED driver module 405.Wherein the annexation of each several part is as follows:
Concrete detailed principle of work in detail can be referring to the detailed description among the embodiment 1.
Therefore, survey instrument owing to use the digitizing of this automobile, it can obtain the vehicle body parameter of current automobile respectively by vehicle body CAN bus and outside acquisition sensor, show each current running parameter information by the LED display module.With respect to prior art, not only can solve the problem that real number of parameters is very few, the pointer pointing accuracy is not high that pointer instrument exists.In addition, adopt this technical scheme, can also make full use of the CAN bus of vehicle body, obtain whole running informations of automobile, make and survey the more abundant information that obtains, and the structure of detector is simpler, is convenient to the maintenance of people to automobile more by the CAN bus.
Embodiment 5:
Referring to shown in Figure 5,4 differences of present embodiment and embodiment are following:
Also be provided with button (not drawing among the figure) on the face-piece surface, also be provided with the button inputting circuits 501 that is electrically connected with button in face-piece, button inputting circuits 501 is used for importing the driving parameter values for the user; Button inputting circuits 501 is electrically connected with processor 504.
Concrete detailed operation principle is in detail referring to the description among the embodiment 2.
The digital instrumentation of present embodiment is with respect to the digital instrumentation shown in the embodiment 4, and it also has following beneficial effect:
Such as: use this method and can read the current running information that we need by automotive control system by the CAN bus.Such as: we can obtain the average fuel consumption and the instantaneous oil consumption of current running car by the CAN bus, what the user need show is average oil consumption or instantaneous oil consumption, the user can go to select by instruction is set, and can also go to be provided with temporal information on the LED screen by button.
Therefore because the user can also pass through User Defined in the present embodiment, determining need be from the running information that shows, the dirigibility that helps surveying makes the more abundant information of surveying further to help user's detection, maintenance.
Embodiment 6:
Referring to shown in Figure 6,5 differences of present embodiment and embodiment are following:
Embodiment 7:
Referring to shown in Figure 7,6 differences of present embodiment and embodiment are following:
The oil mass mapping table of comparisons 701, the water temperature mapping table of comparisons 702 prestore the corresponding relation of the numerical value of the voltage of oil mass detectable signal, water temperature detectable signal and oil mass, water temperature respectively;
The speed of a motor vehicle mapping table of comparisons 703 prestores the speed of a motor vehicle numerical value of the frequency correspondence of speed detecting signal, and the rotating speed mapping table of comparisons 707 prestores the speed revolution value of the frequency correspondence of speed detection signal.
It is with respect to the digital instrumentation shown in the embodiment 4, and it also has following beneficial effect:
Its numerical value to the running parameter of detectable signal correspondence is determined simple and practical, is easy to realize.
More than the technical scheme that the embodiment of the invention provided is described in detail, used specific case herein the principle and the embodiment of the embodiment of the invention are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. a method of surveying the running parameter is characterized in that, comprising:
Processor sends to the CAN bus driver and reads the driving parameter instruction, includes the driving parameter type that need read in described instruction;
Described CAN bus driver changes into the emulation bus signal with described instruction, the instruction of described emulation bus signal form is sent to the CAN bus of vehicle body;
Automotive control system sends current running parameter information by described CAN bus to described CAN bus driver according to the instruction of receiving,
Described processor receives the detectable signal that outer locator sends, and determines the running parameter information of described detectable signal correspondence,
Described processor is with the running parameter information that receives: export described LED driver module to,
Described LED driver module drives described LED display module, and the LED display module shows current running parameter information.
2. a kind of method of surveying the running parameter according to claim 1 is characterized in that,
In step: processor to the CAN bus driver send read the running parameter instruction before, also comprise:
Processor is determined the type of the running parameter that the active user need read according to the setting command of user's input;
Processor sends to the CAN bus driver and reads the running parameter instruction, specifically:
Processor sends to described CAN bus driver and reads the running parameter instruction, comprises the type of the running parameter that need read in described instruction.
3. a kind of method of surveying the running parameter according to claim 1 is characterized in that,
Described processor exports described running parameter information to described LED driver module, specifically:
Described processor inputs to pattern process module with described running parameter information,
Described pattern process module obtains graphical information with described running parameter information graphical treatment;
Described pattern process module exports described graphical information to described LED driver module.
4. a kind of method of surveying the running parameter according to claim 1 is characterized in that,
The detectable signal that described outer locator sends is oil mass detectable signal, water temperature detectable signal, speed detecting signal, speed detection signal;
Described processor is determined the running parameter information of described detectable signal correspondence, specifically:
Described processor is inquired about the oil mass mapping table of comparisons, the water temperature mapping table of comparisons that prestores respectively, determines the fuel quantity parameter of the voltage correspondence of current oil mass detectable signal, water temperature detectable signal, the numerical value of water temperature parameter,
The speed of a motor vehicle mapping table of comparisons that described processor inquiry prestores, the rotating speed mapping table of comparisons are determined the speed of a motor vehicle of the frequency values correspondence of current vehicle speed detectable signal, speed detection signal, the numerical value of rotating speed.
5. a kind of method of surveying the running parameter according to claim 1 is characterized in that,
In step: described processor receives after the detectable signal that outer locator sends, and also comprises:
When data arrive described CAN bus interface, interrupt, described processor is carried out described step in Interrupt Process:
Determine the running parameter information of described detectable signal correspondence.
6. an automobile digitalization instrument is characterized in that, comprising: face-piece,
Described face-piece is provided with the LED display module, is used to insert the CAN bus interface of CAN bus and the sensor interface that is used to insert sensor;
In described face-piece, also be provided with CAN bus driver, processor, LED driver module,
Described CAN bus driver is electrically connected with described CAN bus interface, and described processor is electrically connected with described CAN bus driver, sensor interface, LED driver module respectively, and described LED driver module is electrically connected with described LED display module; Wherein,
Described CAN bus driver is used to change the communication information between the CAN bus of described processor and vehicle body: the digital signal instruction transformation that processor is sent becomes the emulation bus signal, and the emulation bus conversion of signals is become digital signal,
Described processor is used for the running parameter information of described CAN bus driver and the input of described sensor interface is sent to described LED driver module,
Described LED driver module is used to drive described LED display module, and described LED display module is used to show described running parameter information.
7. a kind of automobile digitalization instrument according to claim 6 is characterized in that,
Also be provided with button on described face-piece surface,
Also be provided with the button inputting circuits that is electrically connected with described button in described face-piece, described button inputting circuits is used for importing user's setting command for the user, comprises in described user's setting command: the running parameter type that the current needs of user read;
Described button inputting circuits is electrically connected with described processor, and described processor also comprises:
Show submodule is set, be electrically connected, be used for described LED driver module being set, in described LED display module, to show the running parameter type information that the current needs of described user read according to described user's setting command with described button inputting circuits.
8. according to claim 6 or 7 described a kind of automobile digitalization instruments, it is characterized in that,
Described processor also comprises the graphics process sub-processor,
Described figure sub-processor is connected with described LED driver module, is used for described running parameter information graphical treatment is obtained graphical information, inputs to described LED driver module.
9. according to claim 6 or 7 described a kind of automobile digitalization instruments, it is characterized in that,
The detectable signal that described outer locator sends is oil mass detectable signal, water temperature detectable signal, speed detecting signal, speed detection signal;
Described processor also comprises the oil mass mapping table of comparisons, the water temperature mapping table of comparisons, the speed of a motor vehicle mapping table of comparisons, the rotating speed mapping table of comparisons,
The described oil mass mapping table of comparisons, the water temperature mapping table of comparisons prestore the corresponding relation of the numerical value of the voltage of oil mass detectable signal, water temperature detectable signal and oil mass, water temperature respectively,
The described speed of a motor vehicle mapping table of comparisons prestores the speed of a motor vehicle numerical value of the frequency correspondence of speed detecting signal;
The described rotating speed mapping table of comparisons prestores the speed revolution value of the frequency correspondence of speed detection signal:
Described processor also comprises enquiry module, described enquiry module is used for inquiring about respectively the described oil mass mapping table of comparisons, the water temperature mapping table of comparisons, the speed of a motor vehicle mapping table of comparisons, the rotating speed mapping table of comparisons, determines current oil mass detectable signal and water temperature detectable signal, speed detecting signal, speed detection signal value corresponding respectively respectively.
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| CN101509791A (en) * | 2009-03-17 | 2009-08-19 | 北京长城华冠汽车技术开发有限公司 | Automobile digitalization instrument controlling and displaying method and device |
| CN201907418U (en) * | 2010-04-13 | 2011-07-27 | 佛山市智邦电子科技有限公司 | Digital meter of automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628748A (en) * | 2012-03-21 | 2012-08-08 | 中国北方车辆研究所 | Vehicle dynamic state observation device for four-wheel-drive electric automobile |
| CN110958270A (en) * | 2019-12-23 | 2020-04-03 | 郑州嘉晨电器有限公司 | Vehicle instrument adaptive to multiple electric control protocols |
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Application publication date: 20111005 |