CN208057249U - Vehicle detection data operation conversion processing circuit - Google Patents
Vehicle detection data operation conversion processing circuit Download PDFInfo
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- CN208057249U CN208057249U CN201721662559.6U CN201721662559U CN208057249U CN 208057249 U CN208057249 U CN 208057249U CN 201721662559 U CN201721662559 U CN 201721662559U CN 208057249 U CN208057249 U CN 208057249U
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Abstract
The utility model proposes vehicle detection data operation conversion processing circuits, Engine ECU connects the coil of idle motors with idling detection module, idle motors are fixedly connected with idle governor valve, idle speed control valve and intake air temperature sensor are fixedly mounted on the entrance of air intake branch, intake air temperature sensor connects the input terminal and Engine ECU of A/D converter simultaneously, the output end of idling detection module connects difference amplifier, the output end of difference amplifier connects microcontroller, and microcontroller connection shows screen.Idling detection module is subjected to signal amplification by difference amplifier, and oscilloscope display is sent to by microprocessor, user is facilitated to judge engine condition in time according to waveform；Microprocessor is combined with water temperature sensor and intake air temperature sensor two, the vehicle condition under different environment is detected, and the optimum start-up time is judged according to detection data, cold start-up is effectively reduced and is damaged caused by engine.
Description
Technical field
The utility model is related to technical field of vehicle detection, more particularly to a kind of vehicle detection data operation conversion process electricity
Road.
Background technology
With private car increase and the accelerating rhythm of life, people are not often carrying out foot when starting vehicle
In the case of enough preheatings, driving vehicle.If things go on like this, engine will appear following phenomenon：1, engine knock sound can be heard, 2,
Power accelerate it is insufficient, accelerate it is powerless, 3, increase the consumption etc. of fuel oil.But it is how long suitable to engine prewarming？Due to
The difference of region and environment temperature has very big difference, it is difficult to hold, the vehicle of manual gear is not due to having automatic adjustment
Function, therefore, engine cross cold start-up driving, be in the presence of that idling failure is relatively more, idling failure there are many performance shape
Formula, including unstable idle speed, idling flameout, cold vehicle rough idle, hot vehicle rough idle etc., idling failure situations down train, easily
It causes engine low temperature to wear, therefore, is badly in need of a kind of vehicle detection data operation conversion processing circuit, idling conditions are sentenced
It is fixed, judge where is broken down successively, reduces the abrasion to engine.
Utility model content
The purpose of this utility model aims to solve at least one of the technological deficiency.
One of the utility model is designed to provide a kind of vehicle detection data operation conversion processing circuit, to idling shape
Condition is detected, and according to inspection result, indicates the Best Times of vehicle launch traveling.
To achieve the goals above, the embodiment of the utility model one side provides a kind of vehicle detection data operation conversion
Processing circuit, including Engine ECU, idle motors, idle speed control valve, idling detection module, intake air temperature sensor, A/D turn
Parallel operation, microcontroller, display screen；The coil of the Engine ECU connection idle motors, the idle motors and idle governor valve
It is fixedly connected, idling detection module connects the coil of idle motors, and the idle speed control valve and intake air temperature sensor are fixed
Mounted on the entrance of air intake branch, the intake air temperature sensor connects the input terminal and Engine ECU of A/D converter simultaneously,
The output end of the A/D converter connects microcontroller, and the output end of the idling detection module connects difference amplifier, described
The output end of difference amplifier connects microcontroller, and the microcontroller connection shows screen.
Preferably, the idling detection module includes first resistor, the first diode, the second diode；First electricity
The coil input end of one end connection idle motors of resistance, the other end of the first resistor connect simultaneously first resistor anode and
The cathode of second resistance；The cathode of the first resistor and the anode of second resistance are separately connected the coil output of idle motors
End.
Preferably, the inverting input of the cathode connection difference amplifier of the first resistor, the sun of the second resistance
Pole connects the positive input of difference amplifier, and the output end of the difference amplifier connects microcontroller.
Preferably, the display screen uses the oscillograph of MSO9000A models.
Preferably, the microcontroller is also connected with water temperature sensor and indication lamp for vehicle running；The water temperature sensor is for examining
Survey engine cooling water temperature.
Preferably, the microcontroller connects wireless communication module, and the wireless communication module includes bluetooth module, WIFI
Any one in module.
Preferably, the microcontroller uses 51 microcontrollers.
According to a kind of vehicle detection data operation conversion processing circuit that the utility model embodiment provides, using in idling
Idling monitoring modular is set at motor, idling detection module is subjected to signal amplification by difference amplifier, and pass through microprocessor
Device is sent to oscilloscope display, and user is facilitated to judge engine condition in time according to waveform；By microprocessor and water temperature sensor
It is combined with intake air temperature sensor two, the vehicle condition under different environment is detected, and judged most according to detection data
The good startup time is effectively reduced cold start-up and is damaged caused by engine.
The additional aspect of the utility model and advantage will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment
Become apparent and is readily appreciated that, wherein：
Fig. 1 is the electrical block diagram of the utility model vehicle detection data operation conversion processing circuit；
Fig. 2 is the circuit diagram of idling detection module in the utility model vehicle detection data operation conversion processing circuit；
In figure：1, Engine ECU；2, idle motors；3, idle speed control valve；4, idling detection module；5, intake air temperature passes
Sensor；6, A/D converter；7, microcontroller；8, screen is shown.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
As shown in Figure 1, a kind of vehicle detection data operation conversion processing circuit that the utility model embodiment provides, including
Engine ECU, idle motors, idle speed control valve, idling detection module, intake air temperature sensor, A/D converter, microcontroller,
Show screen；The coil of the Engine ECU connection idle motors, the idle motors are fixedly connected with idle governor valve, idling
Detection module connects the coil of idle motors, and the idle speed control valve and intake air temperature sensor are fixedly mounted on air intake branch
Entrance, the intake air temperature sensor connects the input terminal and Engine ECU of A/D converter, the A/D converters simultaneously
Output end connect microcontroller, the output end of the idling detection module connects difference amplifier, the difference amplifier
Output end connects microcontroller, and the microcontroller connection shows screen.
Idle motors are usually stepper motor, are powered to coil by Engine ECU, realize stepper motor stepping rotation
Turn, the rotation of stepper motor realizes the control rotated to idle speed control valve.
As shown in Fig. 2, the idling detection module includes first resistor R1, the first diode D1, the second diode D2；Institute
The coil input end of one end connection idle motors of first resistor is stated, the other end of the first resistor connects first resistor simultaneously
Anode and second resistance cathode；The cathode of the first resistor and the anode of second resistance are separately connected the line of idle motors
Enclose output end.Further, the inverting input of the cathode connection difference amplifier of the first resistor, the sun of the second resistance
Pole connects the positive input of difference amplifier, and the output end of the difference amplifier connects microcontroller.It should be noted that
The idle motors that the utility model uses for four line motors, so-called four lines motor be by two coils of idle motors respectively with
Engine ECU connects, and after vehicle vehicle, Engine ECU exports positive voltage and negative voltage according to duty, therefore idle motors
The duty ratio of the voltage follow Engine ECU of two coils carries out voltage change, when coil input end is positive voltage, the one or two
Pole pipe is connected, the shutdown of the second diode, and difference amplifier calculates the voltage difference between two diodes at this time, and voltage difference
Value is sent to microprocessor, and microprocessor compares the voltage difference received with standard value, if fallen in normal range (NR)
It is interior, you can judgement Engine ECU normal work；It can determine that idling failure at this time, be not to be broken down by Engine ECU
Cause.
In being originally another embodiment of utility model, the moon of the first diode can also be directly tested by oscillograph
Pole and the second diode anode judge whether Engine ECU breaks down by directly observing waveform transformation.
Since microprocessor is also connected with intake air temperature sensor and intake valve jaw opening sensor, intake air temperature sensor and into
The inlet air temperature value of acquisition and air intake valve opening value are sent to microprocessor by air valve opening sensor, will by A/D modules
Above-mentioned collection value carries out analog to digital signal conversion and judges collection value by microprocessor according to preset value, into one
Step judges the reason of leading to idling failure.
The microcontroller is also connected with water temperature sensor and indication lamp for vehicle running；The water temperature sensor is for detecting engine
Cooling water temperature.The display screen uses the oscillograph of MSO9000A models.Preferably, the microcontroller uses 51 monolithics
Machine.It should be noted that the element model that the microprocessor provided in the utility model embodiment and display screen use, not
It is confined to the example above, can also be other models, details are not described herein.
Preferably, the microcontroller connects wireless communication module, and the wireless communication module includes bluetooth module, WIFI
Any one in module.
In cold start-up, Engine ECU can send out the instruction for increasing oil spout, increasing idling valve opening automatically, to improve
Engine speed allows engine to be brought rapidly up, and after temperature rise is to specified value, distributive value and idling valve opening all revert to
Normality, at this time vehicle can start to walk to go slowly.When controller detects cold start-up by engine speed sensor, idling detection module
Engine speed is by the higher change procedure to normal idling, after engine enters normal idling, and engine cooling water
Temperature reach preset value, at this time i.e. reach driving condition, indication lamp for vehicle running is lighted, user can step on gas pedal driving.
A kind of vehicle detection data operation conversion processing circuit that the utility model embodiment provides, using in idle motors
Idling detection module is carried out signal amplification by difference amplifier, and is sent out by microprocessor by place's setting idling monitoring modular
It send to oscilloscope display, user is facilitated to judge engine condition in time according to waveform；By microprocessor and water temperature sensor and into
Gas temperature sensor two combines, and the vehicle condition under different environment is detected, and is most preferably opened according to detection data judgement
It the dynamic time, is effectively reduced cold start-up and is damaged caused by engine.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiments or example.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.The scope of the utility model is by appended claims and its equivalent limits.
Claims (7)
1. a kind of vehicle detection data operation conversion processing circuit, which is characterized in that including Engine ECU, idle motors, idling
Control valve, idling detection module, intake air temperature sensor, A/D converter, microcontroller, display screen；The Engine ECU
The coil of idle motors is connected, the idle motors are fixedly connected with idle governor valve, and idling detection module connects idle motors
Coil, the idle speed control valve and intake air temperature sensor are fixedly mounted on the entrance of air intake branch, and the intake air temperature passes
Sensor connects the input terminal and Engine ECU of A/D converter simultaneously, and the output end of the A/D converter connects microcontroller, institute
The output end connection difference amplifier of idling detection module is stated, the output end of the difference amplifier connects microcontroller, described
Microcontroller connection shows screen.
2. vehicle detection data operation conversion processing circuit according to claim 1, which is characterized in that the idling detection
Module includes first resistor, the first diode, the second diode；The coil of one end connection idle motors of the first resistor is defeated
Enter end, the other end of the first resistor connects the anode of first resistor and the cathode of second resistance simultaneously；The first resistor
Cathode and the anode of second resistance be separately connected the coil outputs of idle motors.
3. vehicle detection data operation conversion processing circuit according to claim 2, which is characterized in that the first resistor
Cathode connection difference amplifier inverting input, the positive input of the anode connection difference amplifier of the second resistance
The output end at end, the difference amplifier connects microcontroller.
4. vehicle detection data operation conversion processing circuit according to claim 1, which is characterized in that the display screen
Using the oscillograph of MSO9000A models.
5. vehicle detection data operation conversion processing circuit according to claim 1, which is characterized in that the microcontroller
It is also connected with water temperature sensor and indication lamp for vehicle running；The water temperature sensor is for detecting engine cooling water temperature.
6. vehicle detection data operation conversion processing circuit according to claim 1, which is characterized in that the microcontroller
Wireless communication module is connected, the wireless communication module includes any one in bluetooth module, WIFI module.
7. vehicle detection data operation conversion processing circuit according to claim 1, which is characterized in that the microcontroller
Using 51 microcontrollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721662559.6U CN208057249U (en) | 2017-12-04 | 2017-12-04 | Vehicle detection data operation conversion processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721662559.6U CN208057249U (en) | 2017-12-04 | 2017-12-04 | Vehicle detection data operation conversion processing circuit |
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| Publication Number | Publication Date |
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| CN208057249U true CN208057249U (en) | 2018-11-06 |
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| CN201721662559.6U Active CN208057249U (en) | 2017-12-04 | 2017-12-04 | Vehicle detection data operation conversion processing circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292573A (en) * | 2018-11-30 | 2019-02-01 | 日立楼宇技术（广州）有限公司 | A kind of brake coil detection method, device, equipment and storage medium |
-
2017
- 2017-12-04 CN CN201721662559.6U patent/CN208057249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292573A (en) * | 2018-11-30 | 2019-02-01 | 日立楼宇技术（广州）有限公司 | A kind of brake coil detection method, device, equipment and storage medium |
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