CN207441064U - Vehicle component monomer detection circuit - Google Patents
Vehicle component monomer detection circuit Download PDFInfo
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- CN207441064U CN207441064U CN201720733324.5U CN201720733324U CN207441064U CN 207441064 U CN207441064 U CN 207441064U CN 201720733324 U CN201720733324 U CN 201720733324U CN 207441064 U CN207441064 U CN 207441064U
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Abstract
The utility model is related to vehicle teaching fields, disclose a kind of vehicle component monomer detection circuit, can either carry out failure setting, and can realize and the detection of vehicle component monomer is carried out in the case of not unplugg.The vehicle component monomer detection circuit includes：Component to be measured, multiple relays, micro-control MCU, the first test point, the second test point pull out device trigger button and control module.At least one connecting line between component to be measured and control module, relay is respectively arranged in each connection, the first test point is respectively arranged between component to be measured and each relay, the second test point is respectively arranged between control module and each relay, the control terminal of each relay is connected with micro-control MCU, while micro-control MCU is connected with pulling out device trigger button.It pulls out appliance button triggering and pulls out device signal, micro-control MCU receives this and pulls out device signal, controls the on off state of relay, so as to the break-make of control circuit connection, the DATA REASONING to component to be measured is realized in the first test point, and the DATA REASONING to control module is realized in the second test point.
Description
Technical field
The utility model is related to vehicle teaching fields, more particularly to vehicle component monomer detection circuit.
Background technology
Traditional auto electric diagnosis troubleshooting class teaching equipment is only supported on test panel to be carried out by test point, can only
Realize that device is detected with the related data under vehicle circuitry connection, it is difficult to accomplish only to be detected (just component monomer
It is that other circuits do not have any relation to device with vehicle, only to the measurement of device body).User is needed to component monomer
When being detected, unique method is to take off target devices from vehicle, is individually tested.But in practical application
In often plug former vehicle device, serious damage can be caused to vehicle component plug；Further, since vehicle component is distributed in
The each corner of vehicle, swapping process is fairly cumbersome, can seriously affect the progress of operation.
Utility model content
The purpose of this utility model is to provide a kind of vehicle component monomer detection circuits, pass through relay, micro-control
MCU, pulls out device trigger button and control module realizes the detection of vehicle component monomer.
In order to solve the above technical problems, the utility model discloses a kind of vehicle component monomer detection circuit, including treating
Component, multiple relays are surveyed, micro-control MCU pulls out device trigger button and control module；
Control module is believed for receiving the output signal from component to be measured and/or sending control to component to be measured
Number；
Have at least one connecting line between component to be measured and control module, be respectively arranged in each connecting line one after
Electric appliance, first test point and second test point, wherein each first test point be located at relay and component to be measured it
Between, between relay and control module, the control terminal of each relay is connected each second test point with micro-control MCU, while micro-
Control MCU is connected with pulling out device trigger button；
It pulling out appliance button triggering and pulls out device signal, micro-control MCU, which is received, pulls out device signal, controls the on off state of relay,
So as to the break-make of control circuit connection, the DATA REASONING to component to be measured is realized in the first test point, it is real in the second test point
Now to the DATA REASONING of control module.
In a preference, any one that it can be following device that component to be measured, which is,：Intake air temperature sensor, oil
Door pedal, crankshaft position sensor, cooling-water temperature sensor, air throttle, lambda sensor or cooling-water temperature transmitter.
In a preference, control module is engine control module.
The utility model compared with prior art, at least with following difference and effect：
The utility model provides a kind of vehicle component monomer detection suitable for the teaching of auto electric troubleshooting diagnostics classes
Technical solution, predominantly solve student, teacher in actual auto electric troubleshooting diagnostics classes teaching, it is necessary to each to vehicle
The problem of component carries out monomer resistance detection after being removed.
Further, detection method provided by the utility model will not cause serious damage to vehicle component plug；
And for being distributed in each corner of vehicle or be inconvenient to the component plugged, plug operation need not be carried out and can be direct
Measurement realizes identical or even more accurately measurement effect, operating efficiency and technique effect all obtain simply and easily to operate
It is promoted.
Further, the component to be measured of the utility model is not limited to a certain vehicle component, same method
It can realize the test to various components.In addition, by the control to relay switch state, specified circuit can be set
Failure is put, realizes fault diagnosis functions.
It is appreciated that in the scope of the utility model, above-mentioned each technical characteristic of the utility model and below (strictly according to the facts
Apply mode and example) in specifically describe each technical characteristic between can be combined with each other, so as to form new or preferred skill
Art scheme.As space is limited, not repeated them here.
Description of the drawings
Fig. 1 is vehicle component monomer detection circuit figure；
Fig. 2 is each device connection circuit diagram in a kind of vehicle；
The figure that makes a practical application of a principle of Fig. 3 crankshaft position sensors in the car.
Specific embodiment
In the following description, in order to make the reader understand this application better, many technical details are proposed.But this
Even if the those of ordinary skill in field is appreciated that without these technical details and many variations based on following embodiment
And modification, it can also realize the application technical solution claimed.
In the application documents of the application, part concept explanation and citing：
Monomer detects, and referring to other circuits of device and vehicle does not have any connection, the measurement for the device body for being only.
Micro-control MCU, i.e. micro-control unit (Microcontroller Unit；MCU), it is also known as one chip microcomputer
(Single Chip Microcomputer) or microcontroller are central processing unit (Central Process Unit；
CPU frequency) and specification do appropriate reduction, and by memory (memory), counter (Timer), USB, A/D conversion, UART,
The perimeter interfaces such as PLC, DMA or even LCD driving circuits are all incorporated on one chip, form the computer of chip-scale, for difference
Application scenario do various combination control, such as mobile phone, PC periphery, remote controler, until automotive electronics, industrial stepper motor,
Control of robotic arm etc..
Crankshaft position sensor, for determining the position of bent axle, that is, the corner of bent axle.It is generally mated camshaft location
Sensor works together, determines the basic ignition moment.By crankshaft position sensor, stop it is known which the cylinder piston is in upper
Point, by CMPS Camshaft Position Sensor, it is known which the cylinder piston is in compression stroke.In this way, engine computer is aware of
Which cylinder igniting when this give.
The part main points of the application are as follows:
In order to solve the problems, such as that the detection of the monomer of vehicle component is difficult to realize in practical operation, the method being readily apparent that
It is that device chooses from vehicle individually to be detected.But in practical operation, device is damaged in frequently plug operation
Wound is serious, and some devices are distributed in each corner of vehicle, and the plug of device is difficult to realize, seriously affect operation into
Degree.
This application discloses a kind of monomer detection that device is realized in the case of not unplugg, in each connection of device
Middle setting relay switch and the first test point, using the on off state of micro-control MCU control relays, when all relays break
The device is in monomer isolation when opening, and the monomer DATA REASONING to device is realized in the first test point.It is further, it is also possible to logical
The on off state for crossing relay sets failure to specified circuit, realizes fault detection capability.
The technical solution of the application realizes to be grasped directly on test panel by a simple device trigger button that pulls out
Make, just realize that other circuits are fully disconnected electrical connection to component to be measured with vehicle, and then can directly be surveyed by panel first
Pilot is detected component monomer.Such as using the technology detection component internal resistance, come judge the quality of device or
It is service life.
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
The embodiment of type is described in further detail.
The embodiment of the utility model is related to a kind of vehicle component monomer detection circuit, and Fig. 1 is vehicle component list
Physical examination slowdown monitoring circuit figure, including：Component to be measured, multiple relays, micro-control MCU pull out device trigger button and control module；
Between component to be measured and control module there are one or multiple connections, the utility model by component to be measured with
Relay, the first test point and the second test point are set between each connection of control module, wherein the first test point be located at after
Between electric appliance and component to be measured, the second test point between relay and control module, the control terminal of each relay with it is micro-
MCU connections are controlled, while micro-control MCU is connected with pulling out device trigger button.
Control module is believed for receiving the output signal from component to be measured and/or sending control to component to be measured
Number；
When carrying out monomer detection to component to be measured, pull out device signal by pulling out the triggering of device trigger button and be sent to
Micro-control MCU, micro-control MCU, which receive to pull out, controls after device signal all relays to disconnect, so that component to be measured is all electrical
Connection is off, and the data such as the internal resistance of component to be measured are detected in the first test point.
Component to be measured refers to need the device detected on vehicle, such as：Intake air temperature sensor, gas pedal, bent axle
Position sensor, cooling-water temperature sensor, air throttle, lambda sensor, cooling-water temperature transmitter etc..
Device trigger button is pulled out, for sending an operational order to micro-control MCU, other devices realization can also be used to refer to
Make sending function, such as d type flip flop.
In one embodiment of the utility model, Fig. 2 is each device connection circuit diagram in a kind of vehicle.It is wrapped in the circuit
Include B23F admission cam shaft position sensors, B23E exhaust cam shaft position sensors, B26 crankshaft position sensors, Q6F cams
Shaft position actuator solenoid valve-air inlet, Q6E camshaft locations actuator solenoid valve -6 kinds of exhaust, B68 detonation sensor etc. device
Part, can be to any one progress monomer detection therein.Wherein control module is K20 engine control module.
In one embodiment of the utility model, vehicle component to be measured is B26 crankshaft position sensors.The sensor
There are three stitch, docked with real vehicle.As shown in Fig. 2, three pins of B26 crankshaft position sensors connect K20 engines respectively
Control module, and relay switch and the first test point are respectively arranged in each connection.
Fig. 3 is the figure that makes a practical application of a principle of B26 crankshaft position sensors in the car.When the feelings that 3 relays are all closed
Under condition, B26 and vehicle connection are intact, and equipment carries out electrical connection with real vehicle and docks, and user can be in the first test point
The a series of detections such as the real-time voltage, waveform, resistance signal data of the signal line are conveniently measured, with acquisition device and vehicle
Docking after data.The test equipment being connected in the first test point includes but not limited to universal meter and oscillograph.
When carrying out monomer measurement to B26 crankshaft position sensors, user pulls out device by pulling out the triggering of device trigger button
Signal, micro-control MCU, which is received, pulls out device signal, and micro-control MCU controls 3 relays all off.When 3 relays are all off
In the case of, the electrical connection of B26 crankshaft position sensors and vehicle is in completely isolated state, by measuring 3 first tests
Point conveniently and accurately obtains the data such as the internal resistance of B26 crankshaft sensors in itself.Therefore the situation in not unplugg can be realized
Under into line sensor monomer detect.
In one embodiment of the utility model, analog sensor signal is inputted in the second test point, according to control mould
Block realizes the output response of the input signal detection to control module.The position of second test point is as shown in Figure 1.Specifically
It says：
Operation have analog sensor behavior simulation softward computer by an interface (such as serial ports, USB port or
Parallel port etc.) it is connected with the second test point, receiving control module by this second test point believes the control of sensor assembly
Number, according to the output signal of the control signal analog sensor, which is sent to by control mould by the second test point
Block.The output signal of the sensor of the simulation can be the analog signal of rotating speed, temperature, humidity, pressure, acceleration.Pass through this
Kind mode can detect the failure of control module.
In one embodiment, for a given input signal, the output that can generate a standard is rung control module
Should, therefore the standard output of any one input signal is all to determine.Such as more than the temperature of alarm temperature during input signal
Signal, then control module should export an alarm signal.And in real work, for any one input signal, control
Molding block can generate a real output signal, be compared by real output signal and standard output signals, can realize to control
The detection of molding block.
It should be noted that in the application documents of this patent, relational terms such as first and second and the like are only
For distinguishing one entity or operation from another entity or operation, without necessarily requiring or implying these entities
Or there are any actual relationship or orders between operation.Moreover, term " comprising ", "comprising" or its it is any its
He is intended to non-exclusive inclusion by variant, so that process, method, article or equipment including a series of elements are not
Only include those elements, but also including other elements that are not explicitly listed or further include for this process, method,
Article or the intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence " including one ", and
It is not precluded in the process including the element, method, article or equipment that also there are other identical elements.The Shen of this patent
It please be in file, if it is mentioned that certain behavior is performed according to certain element, then refers to the meaning that the behavior is performed according at least to the element,
In include two kinds of situations：The behavior is performed according only to the element and the behavior is performed according to the element and other elements.
It is incorporated herein by reference in all documents that the utility model refers to, just as each document quilt
It is individually recited as reference.In addition, it should also be understood that, after the above-mentioned instruction content of the utility model has been read, this field skill
Art personnel can make various changes or modifications the utility model, and it is claimed that such equivalent forms equally fall within the application
Scope.
Claims (10)
1. a kind of vehicle component monomer detection circuit, which is characterized in that including component to be measured, multiple relays, micro-control
MCU pulls out device trigger button and control module；
The control module sends for output signal of the reception from the component to be measured and/or to the component to be measured
Control signal；
There is at least one connecting line between the component to be measured and the control module, set respectively in each connecting line
There are one the relay, first test point and second test point, wherein each first test point is positioned at described
Between relay and the component to be measured, each second test point between the relay and the control module,
The control terminal of each relay is connected with the micro-control MCU, while the micro-control MCU pulls out device trigger button company with described
It connects；
It is described to pull out appliance button triggering and pull out device signal, the micro-control MCU receive it is described pull out device signal, control the relay
On off state, so as to control the break-make of circuit connection, realized in first test point to the component to be measured
DATA REASONING accesses analog sensor signal in second test point, realizes the DATA REASONING to the control module.
2. vehicle component monomer detection circuit according to claim 1, which is characterized in that the component to be measured is bent
Shaft position sensor.
3. vehicle component monomer detection circuit according to claim 1, which is characterized in that the component to be measured is bent
Shaft position sensor or cooling-water temperature sensor.
4. vehicle component monomer detection circuit according to claim 1, which is characterized in that the component to be measured be into
Gas temperature sensor or gas pedal air throttle.
5. vehicle component monomer detection circuit according to claim 1, which is characterized in that the component to be measured is oxygen
Sensor or cooling-water temperature transmitter.
6. vehicle component monomer detection circuit according to claim 1, which is characterized in that the second test point connection
The equipment for generating the analog sensor signal.
7. vehicle component monomer detection circuit according to claim 6, which is characterized in that the equipment is to calculate
Machine or signal generator.
8. vehicle component monomer detection circuit according to claim 1, which is characterized in that the analog sensor signal
It is generated by simulation software.
9. vehicle component monomer detection circuit according to claim 1, which is characterized in that the control module is to start
Machine control module.
10. vehicle component monomer detection circuit according to claim 1, which is characterized in that first test point with
Test the external equipment connection of internal resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720733324.5U CN207441064U (en) | 2017-06-22 | 2017-06-22 | Vehicle component monomer detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720733324.5U CN207441064U (en) | 2017-06-22 | 2017-06-22 | Vehicle component monomer detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441064U true CN207441064U (en) | 2018-06-01 |
Family
ID=62396222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720733324.5U Active CN207441064U (en) | 2017-06-22 | 2017-06-22 | Vehicle component monomer detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207441064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180574A (en) * | 2017-06-22 | 2017-09-19 | 上海景格科技股份有限公司 | Vehicle component monomer detects circuit |
-
2017
- 2017-06-22 CN CN201720733324.5U patent/CN207441064U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180574A (en) * | 2017-06-22 | 2017-09-19 | 上海景格科技股份有限公司 | Vehicle component monomer detects circuit |
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