CN104417367B - Automobile engine cooling liquid temperature is shown, early warning and warning system and its method - Google Patents
Automobile engine cooling liquid temperature is shown, early warning and warning system and its method Download PDFInfo
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- CN104417367B CN104417367B CN201310360872.4A CN201310360872A CN104417367B CN 104417367 B CN104417367 B CN 104417367B CN 201310360872 A CN201310360872 A CN 201310360872A CN 104417367 B CN104417367 B CN 104417367B
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Abstract
Shown the present invention relates to a kind of automobile engine cooling liquid temperature, early warning and warning system and method.The system includes：LCD MODULE, engine system module, car running computer switch and alarm module, wherein, the engine system module is used to provide car status information and coolant temperature information to the LCD MODULE, and the LCD MODULE is used for the control switched according to the car running computer or the display of row car status information and the display of coolant temperature information are switched into according to the chilling temperature information from the engine system module；Car running computer switch can be used in switching the car status information that the LCD MODULE carries out and show display with coolant temperature information；The alarm module is used for the actuation of an alarm that different modes are carried out according to the coolant temperature information.
Description
Technical field
The present invention relates to technical field of automotive electronics, more particularly to engine cool liquid temperature in a kind of driver information system
The pre-alarm system and its method of degree.
Background technology
Automobile instrument system is the important connection that driver and automobile carry out information exchange, and instrument is located at the first of driver
Within sweep of the eye, comprising speedometer, revolution counter, fuel level gauge, and the related each warning light of vehicle, LCDs are carried
The function such as awake.
With the quickening of social rhythm, many compact cars have become the selection of many people, economical and practical, as good
Walking-replacing tool, such automobile interior is succinctly comfortable, is the first choice of most people from part unit price to the advantage of vehicle unit price,
Instrument system is also relatively succinct.
For relatively succinct instrument system, less segment encode display screen is comprised only, without bigger LCDs
To realize more prompt facilities, traditional compact car also determines that many instrument do not include coolant temperature display table, right
Realized in the high alarm of ECT by way of signal lamp, when the temperature of engine coolant has reached one
Alarm lamp is activated during fixed high temperature alarm threshold value, points out the current engine system of driver to there is problem, coolant temperature is
The state that reaches a high temperature is checked, it is necessary to stop, but such type of alarm can't preferably give driver coolant
The prompting of temperature regime, ECT is had built up for a long time, to a certain degree when can cause the driver to find
On have impact on the security of driving and bring the possibility of engine system progression of failure.
For such instrument system, before alarm lamp is lit, i.e., engine water temperature persistently raises trend and can not allowed
Driver knows in advance, can not thus remind driver's present engine coolant temperature to exist and continue elevated trend, from
And the attention of driver can not be caused.
If showing table containing ECT in a lot of other vehicles, shown with pointer form or segment encode
Mode, in ECT normal range (NR), pointer can be indicated in a certain temperature range always, or segment encode is shown
For a few sections, the pointer flickered in coolant temperature normal range (NR) or the corresponding light on and off of segment encode, can all cause driver to exist
Constantly go to pay close attention to water-thermometer during traveling, prevent from not noticing showing for current state variation tendency when constant temperature from raising
As.
The content of the invention
The elevated early warning of ECT and report that the present invention exists for the instrument system on present compact car
A kind of alert problem, it is proposed that display by car running computer function, increases by liquid crystal display screen display engine cool
The alarm mode of liquid temperature raising trend.
The automobile engine cooling liquid temperature of the present invention is shown, early warning and warning system, including：LCD MODULE, hair
Motivation system module, car running computer switch and alarm module,
Wherein, the engine system module is used to provide car status information and coolant to the LCD MODULE
Temperature information,
The LCD MODULE is used for the control switched according to the car running computer or according to from the engine
The chilling temperature information of system module is switched into the display of row car status information and the display of coolant temperature information；
Car running computer switch can be used in switching the car status information that the LCD MODULE carries out show with
The display of coolant temperature information；
The alarm module is used for the actuation of an alarm that different modes are carried out according to the coolant temperature information.
Preferably, the LCD MODULE is in the case where the coolant temperature reaches the first defined threshold, without
The switching of the car running computer switch is crossed, the display of coolant temperature information is directly switch to, to show the temperature of current coolant
Degree, and display mode is often aobvious.
Preferably, the LCD MODULE is in the case where the coolant temperature reaches the second defined threshold, without
The switching of the car running computer switch is crossed, the display of coolant temperature information is directly switch to, and show current coolant
Temperature, display mode is to be flashed with fixed frequency.
Preferably, the alarm module includes alarm lamp and buzzer.
Preferably, the LCD MODULE is carried out in the case where the coolant temperature reaches the 3rd defined threshold
The display of coolant temperature information, and the temperature of current coolant is shown, display mode is to be flashed with fixed frequency, meanwhile,
The buzzer sends alarm sound and so that the alarm lamp is lighted.
Preferably, the LCD MODULE is carried out in the case where the coolant temperature reaches the 4th defined threshold
The display of coolant temperature information, and the temperature of current coolant is shown, display mode is to be flashed with fixed frequency, meanwhile,
The buzzer sends alarm sound and causes the alarm lamp flicker.
Preferably, first defined threshold, the second defined threshold, the 3rd defined threshold, the 4th defined threshold are followed successively by
From it is small it is big to temperature value,
Preferably, the LCD MODULE is not up to the situation of first defined threshold in the coolant temperature
Under, according to the display of the control progress car status information of car running computer switch without the aobvious of coolant temperature information
Show.
The automobile engine cooling liquid temperature of the present invention is shown, early warning and alarm method, it is characterised in that including step：
Coolant temperature signal acquisition step, ECT signal is obtained from engine system module；
Whether coolant temperature discriminating step, it is the first defined threshold to judge current coolant temperature；
It has been shown that, early warning and alarming step, if current coolant temperature is not up to the situation of first defined threshold
Under so that LCD MODULE carry out the display of car status information and display without coolant temperature information or according to
The control of the car running computer switch switchably carries out the display of car status information and the display of coolant temperature information；Such as
In the case that really current coolant temperature reaches first defined threshold, the display of coolant temperature information is carried out, and
Show the temperature of current coolant.
Preferably, in the coolant temperature signal discriminating step, whether current coolant temperature is determined whether
The second defined threshold is reached,
In the case where judging that current coolant temperature reaches the second defined threshold, in the display, early warning and alarm
In step so that LCD MODULE is directly switch to the display of coolant temperature information, and shows the temperature of current coolant
Degree, display mode is to be flashed with fixed frequency.
Preferably, in the coolant temperature signal discriminating step, whether current coolant temperature is determined whether
The 3rd defined threshold is reached,
In the case where judging that current coolant temperature reaches the 3rd defined threshold, in the display, early warning and alarm
In step so that LCD MODULE carries out the display of coolant temperature information, and shows the temperature of current coolant, shows
Mode is flashes with fixed frequency, simultaneously so that buzzer sends alarm sound and so that alarm lamp is lighted.
Preferably, in the coolant temperature signal discriminating step, whether current coolant temperature is determined whether
The 4th defined threshold is reached,
In the case where judging that current coolant temperature reaches the 4th defined threshold, in the display, early warning and alarm
In step so that LCD MODULE carries out the display of coolant temperature information, and shows the temperature of current coolant, shows
Mode is flashes with fixed frequency, simultaneously so that buzzer sends alarm sound and causes alarm lamp flicker.
ECT is checked in accordance with the invention it is possible to realize from operation car running computer switch, to entering trip temperature
Ascendant trend early warning, then to high temperature alarm, the cost per unit of part has effectively been saved, it can efficiently play early warning and alarm
Function, driver can be not concerned with the state of temperature of engine coolant completely in temperature normal range (NR), if temperature rise
When should extremely remind the driver to note, LCDs is directly entered the page, and driver now pays close attention to again just can shift to an earlier date
The situation of vehicle traveling is judged.
Brief description of the drawings
Fig. 1 be represent the present invention automobile engine cooling liquid temperature show, the organigram of early warning and warning system.
Fig. 2 is the schematic diagram for the switching for representing the car running computer page.
Embodiment
What is be described below is some in multiple embodiments of the invention, it is desirable to provide to the basic understanding of the present invention.And
It is not intended to the crucial or conclusive key element for confirming the present invention or limits scope of the claimed.
Fig. 1 be represent the present invention automobile engine cooling liquid temperature show, the organigram of early warning and warning system.
As shown in figure 1, the automobile engine cooling liquid temperature of the present invention is shown, early warning and warning system include：Launching system module
100th, car running computer switch 200, LCD MODULE 300 and alarm module 400, wherein, LCD MODULE 300 and
Alarm module 400 is to constitute driving information to show system module（That is instrument system）Main member.The He of launching system module 100
Driving information shows that system module is to carry out information exchange between instrument system.Alarm module 400 can include alarm lamp and honeybee
Ring device, alarmed of both display and sound.
Car running computer switch 200 can realize the switching between each formation computer function, first in driving computer function
The page that ECT is shown is designed and developed, can be on LCDs by operating car running computer to switch
The page layout switch currently shown to ECT is shown, driver can be checked whenever necessary.
In the display page of ECT, the ECT of current state can be updated and shown
Value, the switching of the car running computer page is referred to Fig. 2.Fig. 2 is the schematic diagram for the switching for representing the car running computer page.Each money vehicle
There are respective different market orientation and functional configuration, car running computer function is also different, Fig. 2 is that example is referred to, and driver can
The function of needing to check and display are chosen with the operation switched by car running computer, wherein just switching to engine coolant
Temperature shows the page, on this page by aobvious ECT, current temperature show value, and temperature unit.
Launching system module 100 will periodically send the value and instrument for the ECT handled well according to procotol
Table system is interacted, and instrument is shown according to the value of ECT on LCDs, if it is certain this
When current page be ECT show the page, if current page be not ECT show page
Face, the value will also show that user does not carry out temporarily seeing during car running computer operation in the page.
Be not in related display and alarm signal in instrument when ECT is in normal temperature range
Breath, driver without as the instrument containing engine coolant temperature indicator often go the lattice number that shows of observation water temperature or
The position that person's pointer is indicated.If it is, current coolant temperature is not up to a certain temperature i.e. following the first regulation threshold
In the case of value so that LCD MODULE carry out the display of car status information and without the aobvious of coolant temperature information
Show, or can also be display and cooling that the control switched according to the car running computer switchably carries out car status information
The display of liquid temperature information.
When ECT is constantly in ascendant trend, and temperature value reaches elevated first regulation of a certain temperature
Threshold value I（Such as 105 degrees Celsius, actual temp is not defined in the present invention）, no matter the row of liquid crystal display screen display
The car computerized information page is any one page, requires no the operation of car running computer switch 200, is directly switch to engine coolant
The page that temperature is shown, and the temperature of present engine coolant is shown, display mode is often aobvious, points out driver to start at present
Ascendant trend is presented and close to high temperature alarm in machine coolant temperature, causes driver to note engine coolant in the process of moving
The alarm of temperature, or can first stop and checked before engine coolant alarm lamp lights alarm.
When ECT rises always, and temperature value reaches the second regulation more than first defined threshold
Threshold value II（Such as 115 degrees Celsius, actual temp is not defined in the present invention）, it is cold that current page is directly entered engine
But the page that liquid temperature degree is shown, and show the temperature of present engine coolant, display mode is flicker, current temperature value according to
Fixed frequency（Such as 2HZ）Flicker, the temperature value of display is updated and flashed according to actual temperature value, and flicker state is
Threshold value through being activated very close to alarm lamp, causes driver to note the alarm of ECT in the process of moving, or
Person can first stop before the high alarm lamp of ECT is lighted and be checked.
Above before alarm lamp is activated, using liquid crystal display in coolant temperature being currently to continue increasing state
Early warning, can effectively help driver to understand engine running condition in vehicle operation, can simulate combination instrument
On have the prompt facility of engine coolant temperature indicator, it is not necessary to larger display screen can also realize,
When driver continues to drive vehicle, ECT rises always, and temperature value is reached more than described the
3rd defined threshold III of two defined thresholds（Such as 120 degrees Celsius, actual temp is not defined in the present invention）, this
When the page that is still shown in ECT of LCDs, and show present engine coolant temperature, show
State is flicker, meanwhile, the alarm module 400 in instrument system is activated, i.e. alarm lamp is activated buzzer while lighting
Alarm sound is sent, points out driver to need the carry out vehicle inspection that stops as early as possible at present.
When driver continues to drive vehicle, ECT rises above the 4th of the 3rd defined threshold
Defined threshold IV（Such as 124.5 degrees Celsius, actual temp is not defined in the present invention）, now LCDs show
The page of ECT, and present engine coolant temperature is shown as, dispaly state is flicker, meanwhile, instrument
Alarm module 400 in system is activated, alarm lamp flicker, and with alarm sound, points out driver's engine coolant
Extreme temperatures, need to stop and be checked.
It can realize above from operation car running computer switch and check ECT, to entering trip temperature ascendant trend
Early warning, then to high temperature alarm, the cost per unit of part has effectively been saved, the function of early warning and alarm can be efficiently played,
Driver can be not concerned with the state of temperature of engine coolant completely in temperature normal range (NR), should be reminded if temperature rises to
When driver notes, LCDs is directly entered the page, and driver now pays close attention to again just can judge car in advance
Traveling situation.
Hereinafter, the automobile engine cooling liquid temperature for the present invention is shown, early warning and alarm method are illustrated.This hair
Bright automobile engine cooling liquid temperature is shown, early warning and alarm method from engine system module 100 by obtaining engine
The temperature information of coolant causes LCD MODULE 300 to carry out the display of car status information or showing for coolant temperature
Show, and to carry out early warning, alarm in the situation more than defined threshold.Specifically, automobile engine cooling liquid of the invention
Temperature is shown, early warning and alarm method include step：
Coolant temperature signal acquisition step, ECT signal is obtained from engine system module 100；
Whether coolant temperature discriminating step, it is the first defined threshold to judge current coolant temperature；
It has been shown that, early warning and alarming step, if current coolant temperature is not up to the situation of first defined threshold
Under so that LCD MODULE carry out the display of car status information and display without coolant temperature information or according to
The control of the car running computer switch switchably carries out the display of car status information and the display of coolant temperature information；Such as
In the case that really current coolant temperature reaches first defined threshold, the display of coolant temperature information is carried out, and
The temperature of current coolant is shown, display mode is often aobvious, thus, reminds the current engine coolant of driver that rising is presented and becomes
Gesture and immediately high temperature alarm, cause driver to note the alarm of ECT in the process of moving, or starting
Machine coolant alarm lamp can first stop before lighting and be checked.
Further, in the coolant temperature discriminating step, determine whether whether current coolant temperature reaches
To the second defined threshold, in the case of judging that current coolant temperature reaches the second defined threshold, then, described aobvious
Show, in early warning and alarming step so that LCD MODULE is directly switch to the display of coolant temperature information, and show and work as
The temperature of preceding coolant, display mode is to be flashed with fixed frequency.
Further, in the coolant temperature signal discriminating step, determine whether that current coolant temperature is
It is no to reach the 3rd defined threshold, in the case of judging that current coolant temperature reaches the 3rd defined threshold, it is described display,
In early warning and alarming step so that LCD MODULE carries out the display of coolant temperature information, and shows current coolant
Temperature, display mode is flashes with fixed frequency, simultaneously so that buzzer sends alarm sound and causes alarm lamp point
It is bright.
Further, in the coolant temperature signal discriminating step, determine whether that current coolant temperature is
It is no to reach the 4th defined threshold, in the case where judging that current coolant temperature reaches the 4th defined threshold, it is described display,
In early warning and alarming step so that LCD MODULE carries out the display of coolant temperature information, and shows current coolant
Temperature, display mode is flashes with fixed frequency, simultaneously so that buzzer sends alarm sound and alarm lamp is dodged
It is bright.
Automobile engine cooling liquid temperature of the present invention is shown, early warning and warning system and its method can solve the problem that on compact car
There is no ECT display table, LCDs smaller, it is impossible to ECT in lasting rise
Warning function.
Moreover, if showing table containing ECT in many vehicles, it is aobvious with pointer form or segment encode
Show mode, in ECT normal range (NR), pointer can be indicated in a certain temperature range always, or segment encode is aobvious
A few sections are shown as, the pointer flickered in coolant temperature normal range (NR) or the corresponding light on and off of segment encode, can all cause needs to drive
The person of sailing constantly goes to pay close attention to water-thermometer in the process of moving, prevents from not noticing that current state change becomes when constant temperature from raising
The phenomenon of gesture.The present invention can realize that ECT is in rising trend on most of compact cars, in not up to height
Temperature alarm before, can give warning in advance prompting driver note, and avoid wait alarm produce when just prompting driver note having
What is imitated avoids ECT in normal range (NR), and driver is in the process of moving without constantly going to pay close attention to water temperature
The state of table.
Using the present invention, it is capable of the cost per unit of effectively save part, can efficiently plays the function of early warning and alarm,
Driver can be not concerned with the state of temperature of engine coolant completely in temperature normal range (NR), should be reminded if temperature rises to
When driver notes, LCDs is directly entered the page, and driver now pays close attention to again just can judge car in advance
Traveling situation.
Example above primarily illustrate automobile engine cooling liquid temperature of the present invention show, early warning and warning system and its side
Method.Although only the embodiment to some of present invention is described, those of ordinary skill in the art should
Understand, the present invention can be without departing from its spirit with implementing in scope in many other forms.Therefore, the example that is shown with
Embodiment is considered as illustrative and not restrictive, is not departing from the present invention spirit as defined in appended claims
And in the case of scope, the present invention may cover various modifications and replacement.
Claims (11)
1. a kind of automobile engine cooling liquid temperature is shown, early warning and warning system, including：LCD MODULE, engine system
System module, car running computer switch and alarm module,
Wherein, the engine system module is used to provide car status information and coolant temperature to the LCD MODULE
Information,
The LCD MODULE is used for the control switched according to the car running computer or according to from the engine system
The coolant temperature information of module is switched into the display of row car status information and the display of coolant temperature information；
The car status information that the car running computer switch can be used in switching the LCD MODULE progress shows and cooled down
The display of liquid temperature information；
The alarm module is used for the actuation of an alarm that different modes are carried out according to the coolant temperature information,
The LCD MODULE is in the case where the coolant temperature reaches the first defined threshold, without the driving electricity
The switching of brain switch, is directly switch to the display of coolant temperature information, to show the temperature of current coolant, and the side of display
Formula is often aobvious.
2. automobile engine cooling liquid temperature as claimed in claim 1 is shown, early warning and warning system, it is characterised in that
The LCD MODULE is in the case where the coolant temperature reaches the second defined threshold, without the driving electricity
The switching of brain switch, is directly switch to the display of coolant temperature information, and show the temperature of current coolant, display mode
To be flashed with fixed frequency.
3. automobile engine cooling liquid temperature as claimed in claim 2 is shown, early warning and warning system, it is characterised in that
The alarm module includes alarm lamp and buzzer.
4. automobile engine cooling liquid temperature as claimed in claim 3 is shown, early warning and warning system, it is characterised in that
The LCD MODULE carries out coolant temperature letter in the case where the coolant temperature reaches the 3rd defined threshold
The display of breath, and the temperature of current coolant is shown, display mode is to be flashed with fixed frequency, meanwhile, the buzzer hair
Go out alarm sound and so that the alarm lamp is lighted.
5. automobile engine cooling liquid temperature as claimed in claim 4 is shown, early warning and warning system, it is characterised in that
The LCD MODULE carries out coolant temperature letter in the case where the coolant temperature reaches the 4th defined threshold
The display of breath, and the temperature of current coolant is shown, display mode is to be flashed with fixed frequency, meanwhile, the buzzer hair
Go out alarm sound and cause the alarm lamp flicker.
6. automobile engine cooling liquid temperature as claimed in claim 5 is shown, early warning and warning system, it is characterised in that
First defined threshold, the second defined threshold, the 3rd defined threshold, the 4th defined threshold be followed successively by from it is small it is big to temperature
Angle value.
7. the automobile engine cooling liquid temperature as described in claim 1~6 any one is shown, early warning and warning system, its
It is characterised by,
The LCD MODULE in the case where the coolant temperature is not up to first defined threshold,
According to the display of the control progress car status information of car running computer switch without coolant temperature information
Display or the control switched according to the car running computer switchably carry out display and the coolant temperature of car status information
The display of information.
8. a kind of automobile engine cooling liquid temperature is shown, early warning and alarm method, it is characterised in that including step：
Coolant temperature signal acquisition step, ECT signal is obtained from engine system module；
Whether coolant temperature discriminating step, it is the first defined threshold to judge current coolant temperature；
It has been shown that, early warning and alarming step, if in the case that current coolant temperature is not up to first defined threshold, made
LCD MODULE carry out car status information display and display without coolant temperature information or according to driving
The control of computer switch switchably carries out the display of car status information and the display of coolant temperature information；If current
In the case that coolant temperature reaches first defined threshold, the display of coolant temperature information is carried out, and show current
The temperature of coolant.
9. automobile engine cooling liquid temperature as claimed in claim 8 is shown, early warning and alarm method, it is characterised in that
In the coolant temperature signal discriminating step, determine whether whether current coolant temperature reaches the second regulation
Threshold value,
In the case where judging that current coolant temperature reaches the second defined threshold, in the display, early warning and alarming step
In so that LCD MODULE is directly switch to the display of coolant temperature information, and shows the temperature of current coolant, shows
Show mode to flash with fixed frequency.
10. automobile engine cooling liquid temperature as claimed in claim 9 is shown, early warning and alarm method, it is characterised in that
In the coolant temperature signal discriminating step, determine whether whether current coolant temperature reaches the 3rd regulation
Threshold value,
In the case where judging that current coolant temperature reaches the 3rd defined threshold, in the display, early warning and alarming step
In so that LCD MODULE carries out the display of coolant temperature information, and shows the temperature of current coolant, display mode
To be flashed with fixed frequency, simultaneously so that buzzer sends alarm sound and so that alarm lamp is lighted.
11. automobile engine cooling liquid temperature as claimed in claim 9 is shown, early warning and alarm method, it is characterised in that
In the coolant temperature signal discriminating step, determine whether whether current coolant temperature reaches the 4th regulation
Threshold value,
In the case where judging that current coolant temperature reaches the 4th defined threshold, in the display, early warning and alarming step
In so that LCD MODULE carries out the display of coolant temperature information, and shows the temperature of current coolant, display mode
To be flashed with fixed frequency, simultaneously so that buzzer sends alarm sound and causes alarm lamp flicker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310360872.4A CN104417367B (en) | 2013-08-19 | 2013-08-19 | Automobile engine cooling liquid temperature is shown, early warning and warning system and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310360872.4A CN104417367B (en) | 2013-08-19 | 2013-08-19 | Automobile engine cooling liquid temperature is shown, early warning and warning system and its method |
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| Publication Number | Publication Date |
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| CN104417367A CN104417367A (en) | 2015-03-18 |
| CN104417367B true CN104417367B (en) | 2017-08-25 |
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| CN109215172A (en) * | 2018-11-14 | 2019-01-15 | 北京伏羲车联信息科技有限公司 | Detection method, device and the readable storage medium storing program for executing of vehicle-state |
| CN116767089B (en) * | 2023-08-25 | 2023-10-20 | 深圳联友科技有限公司 | Method and device for identifying abnormal water temperature of automobile and monitoring alarm |
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| CN101830203A (en) * | 2010-05-13 | 2010-09-15 | 北汽福田汽车股份有限公司 | Method and device for processing vehicle control information, vehicle control system as well as vehicle |
| CN102322329A (en) * | 2011-08-17 | 2012-01-18 | 上海三一重机有限公司 | Intelligent control method of engine cooling fan for engineering machinery |
| CN202157861U (en) * | 2011-06-10 | 2012-03-07 | 湖北雷迪特汽车冷却系统有限公司 | Cooling device for automobile engine |
| CN102463895A (en) * | 2010-11-06 | 2012-05-23 | 嘉兴协丰汽车电器有限公司 | Intelligent instrument system for automobile |
| CN102514491A (en) * | 2011-12-23 | 2012-06-27 | 埃泰克汽车电子(芜湖)有限公司 | Vehicle instrument display device |
| CN202357982U (en) * | 2011-11-10 | 2012-08-01 | 长安大学 | Optimization device of automobile driving performance |
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- 2013-08-19 CN CN201310360872.4A patent/CN104417367B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101830203A (en) * | 2010-05-13 | 2010-09-15 | 北汽福田汽车股份有限公司 | Method and device for processing vehicle control information, vehicle control system as well as vehicle |
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| CN202157861U (en) * | 2011-06-10 | 2012-03-07 | 湖北雷迪特汽车冷却系统有限公司 | Cooling device for automobile engine |
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