CN2619839Y - Fault simulator for automobile ECU integrated controlling system - Google Patents
Fault simulator for automobile ECU integrated controlling system Download PDFInfo
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- CN2619839Y CN2619839Y CN 03216787 CN03216787U CN2619839Y CN 2619839 Y CN2619839 Y CN 2619839Y CN 03216787 CN03216787 CN 03216787 CN 03216787 U CN03216787 U CN 03216787U CN 2619839 Y CN2619839 Y CN 2619839Y
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Abstract
The utility model provides a fault simulating device of the comprehensive control system for a vehicle ECU. The fault simulating device is characterized in comprising a condition indicating circuit and a plurality group of fault simulating circuits which comprises a double steady state switch circuit, a control switch circuit and a preset fault terminal; wherein, the control switch circuit comprises a triode and an electric relay; the output terminal of the double steady status switch circuit is accordingly provided with the control switch circuit the condition indicating circuit; the frequent closed touch point of the electric relay is connected in series between the control computer and the sensor as well as the implementing element for the comprehensive control system for a vehicle ECU. And the frequent open touch point is connected in series between the control computer and the preset fault terminal. The device adopts the double steady status switch circuit and the control switch circuit to control the sensor, the implementing element and also control the switching on and off, or high potential and low potential these statuses of the connecting circuit of the control computer. Therefore, the vehicle electrical control system can be arranged as the abnormal working mode to keep the vehicle under the fault running status and further to reach the goal of fault setup. Furthermore, to realize harmless vehicle fault setup and release.
Description
Affiliated technical field
The utility model provides a kind of fault simulation device of automobile ECU complex control system, belongs to automobile experiment instructional technology field.
Background technology
At present, all adopt vehicle electronics complex control system (being the automobile ECU control system) on car, The whole control system is made up of " sensor ", " controlling computer (ECU) " and " power element " three parts.For example, the working process of electronic fuel injection engine control system is by each road sensor " engine speed ", " throttle opening ", " air inlet amount ", " camshaft location ", " exhaust level of oxygen ", " water temperature " to be reached multiple signals such as " intake temperature " to pass to " controlling computer ", control " fuel injector " again after the process computer calculation process, " high tension ignition constantly ", " Valve EGR " reach the mode of operation of power elements such as " exhaust gas recycles ", make dynamic property, economy and the exhaust pollution etc. of driving engine all be controlled at optimum regime.In the middle of the automobile experiment teaching, want to turn out practicing that the high-caliber talent just must live ammunition, depend teaching aid alone, model misses one's aim, only on the good automobile of vehicle condition, fault is set, carry out diagnositc analysis by the student at symptom of vehicle failure then, search fault rootstock, and solve the abnormal practical problems of automotive operation, so just can make the student grasp true ability.But on automobile, carry out repeatedly dismounting fault is set can be very big to the loss of vehicle, cost is too high.
The utility model content
The purpose of this utility model provide a kind of can solve above-mentioned contradiction, without detriment to vehicle can realize fault setting and trouble-shooting, exercise student ' to the analysis and judgement ability of phenomenon of the failure, and how to grasp with automotive diagnosis instrument equipment and search fault simulation device with the automobile ECU complex control system of handling failure.Its technical scheme is:
Comprise condition indication circuit and organize by bistable switching circuit more, the master cock circuit, the fault simulation circuit that default fault end is formed, wherein the master cock circuit comprises aerotron and relay, the mouth correspondence of bistable switching circuit connects master cock circuit and condition indication circuit, the normally closed contact of relay is serially connected in the controlling computer and the sensor of automobile ECU complex control system, between the power element, its open contact is serially connected between controlling computer and the default fault end, be that the fault simulation device is connected between the sensor of automobile electric control system and the controlling computer and between controlling computer and the power element, control sensor with bistable switching circuit and master cock circuit, " logical; disconnected or high; active potential " state of power element and controlling computer connection line, thereby automobile electric control system is made as the non-normal working pattern, make automobile be in the failure operation state, to reach the purpose that fault is set.
The fault simulation device of described automobile ECU complex control system, bistable switching circuit adopt two key bistable switching circuits, comprise button AN
1～2, resistance R
1～2, capacitor C and clock circuit U, wherein power supply V
CCConnect 4 pin, 8 pin of clock circuit U respectively, through resistance R
1Connect 2 pin of clock circuit U, through button AN
2Connect 6 pin of clock circuit U, the 1 pin ground connection of clock circuit U, its 2 pin, 6 pin, 5 pin correspondences are through button AN
1, resistance R
2, capacitor C ground connection, its 3 pin is as output termination master cock circuit and condition indication circuit.Each way control switch circuit " leading to ", " breaking " state are by button AN like this
1～2Control, AN pushes button
1, bistable switching circuit is just exported high level, and AN pushes button
2, bistable switching circuit is with regard to output low level.
The fault simulation device of described automobile ECU complex control system, bistable switching circuit also can adopt the singly-bound bistable switching circuit, its output termination master cock circuit and condition indication circuit.
The fault simulation device of described automobile ECU complex control system, the master cock circuit comprises aerotron Q
1, relay J, resistance R
3With diode D
1, aerotron Q wherein
1Base stage through resistance R
3Connect the mouth of bistable switching circuit, its grounded emitter, its collecting electrode is respectively through relay J, diode D
1Power connection V
CC, the normally closed contact of relay J is serially connected between the controlling computer of automobile ECU complex control system and sensor, the power element, and its open contact is serially connected between controlling computer and the default fault end.When the bistable switching circuit output low level, relay J is failure to actuate, the controlling computer of automobile ECU complex control system is communicated with respectively with sensor, power element, and the car electric-control system is in normal working, when bistable switching circuit output high level, the relay J action, its open contact closure is connected controlling computer and default fault end, thereby automobile electric control system is made as the non-normal working pattern, make automobile be in the failure operation state, to reach the purpose that fault is set.
The fault simulation device of described automobile ECU complex control system, default fault end comprise the power connection positive pole, connect bonding, off state etc.
The fault simulation device of described automobile ECU complex control system, condition indication circuit comprises resistance R
4～6, aerotron Q
2～3, diode D
2And LED
1～2, aerotron Q wherein
2Grounded emitter, its base stage is through resistance R
5Meet diode D respectively
2Negative pole and LED
1Positive pole, diode D
2Positive pole connect the mouth of bistable switching circuit, LED
1～2Negative pole all through resistance R
4Ground connection, LED
2Positive pole meet aerotron Q
3Emitter, aerotron Q
3Emitter power connection V
CC, its base stage meets aerotron Q respectively
2Collecting electrode, through resistance R
6Power connection V
CCThe shared same condition indication circuit of whole fault simulation device, as long as there is a way control switch circuit in running order, i.e. bistable switching circuit output high level, LED
1Just glow, have fault to exist in the signal automobile ECU control system, when all master cock circuit are not worked, LED
1Just very low level extinguish aerotron Q simultaneously
1By, aerotron Q
2Must conduct LED
2Just very high level glow green, the signal fault get rid of fully.
Its principle of work is: the fault simulation device is connected between the sensor of automobile electric control system and the controlling computer and between controlling computer and the power element, control " switching or high and low current potential " state of sensor, power element and controlling computer connection line with bistable switching circuit and master cock circuit, thereby automobile electric control system is made as the non-normal working pattern, make automobile be in the failure operation state, to reach the purpose that fault is set, fault setting and eliminating have been realized without detriment to vehicle.
The utility model compared with prior art has following advantage:
1. be provided with and remove fault with button: this fault simulation device is installed on the automobile, and be the failure mode that available keyboard is provided with automobile arbitrarily in the access ECU complex control system, just any sensor or power element can be made as faulty condition as long as click button, this moment, fault-indicating lamp sent ruddiness, and the signal automotive control system is in the fail operation state.Process is made a definite diagnosis trouble location to the analysis and judgement or the apparatus measures of phenomenon of the failure, and gets rid of fault.During trouble-shooting, only need click corresponding button and just finish, and not under command light becomes green by redness, the exemplary system operation is normal.
2. it is wide to adapt to vehicle: this fault simulation device is applicable to that all have the automobile of electronic control system, both can carry out independent system failure simulation to electronic fuel injection engine control system, automatic transmission control system, abs braking antiblock device etc., also can carry out comprehensive fault simulation and releasing to car load, combined and instant is flexible.
3. conveniently assembled: at present, the unit that produces dynamic demonstration tutoring systems such as driving engine, automatic transmission with hydraulic torque converter, abs braking is more, and various experiment teaching systems all lack fault simulating function.This fault simulation device can be fitted in the various dynamic demonstration system, as long as the fault simulation device is connected fault setting and the eliminating that can carry out the ECU control system in the computerized control system.If the fault simulation device is fitted in better effects if above the normal electronic automobile of operation, can carry out the fault setting to various sensors and power element, automobile is nonserviceabled move down, to reach better teaching efficiency.
Description of drawings
Fig. 1 is the principle of work block diagram that the utility model is used in the automobile ECU complex control system;
Fig. 2 is the circuit diagram that the utility model adopts two key bistable switching circuit embodiment.
The specific embodiment
Comprise fault simulation circuit and one tunnel shared condition indication circuits that many groups are made up of two key bistable switching circuits, master cock circuit, default fault end, wherein pair key bistable switching circuits comprise button AN in every group of fault simulation circuit
1～2, resistance R
1～2, capacitor C and 555 clock circuit U, power supply V
CCConnect 4 pin, 8 pin of clock circuit U respectively, through resistance R
1Connect 2 pin of clock circuit U, through button AN
2Connect 6 pin of clock circuit U, the 1 pin ground connection of clock circuit U, its 2 pin, 6 pin, 5 pin correspondences are through button AN
1, resistance R
2, capacitor C ground connection, its 3 pin as mouth through resistance R
3Meet aerotron Q in the master cock circuit
1Base stage, in condition indication circuit diode D
2Sending and receiving optical diode LED
1Positive pole and resistance R
5Each way control switch circuit " leading to ", " breaking " state are by button AN like this
1～2Control, AN pushes button
1, bistable switching circuit is just exported high level, and AN again pushes button
2, bistable switching circuit is with regard to output low level.Aerotron Q
1Grounded emitter, its collecting electrode is respectively through relay J, diode D
1Power connection V
CC, the normally closed contact of relay J is serially connected between the controlling computer of automobile ECU complex control system and sensor, the power element, and its open contact is serially connected between controlling computer and the default fault end.Described default fault end can be the power connection positive pole, connect bonding, off state etc.When the bistable switching circuit output low level, relay J is failure to actuate, the controlling computer of automobile ECU complex control system is communicated with respectively with sensor, power element, and the car electric-control system is in normal working, when bistable switching circuit output high level, the relay J action, its open contact closure is connected controlling computer and default fault end, thereby automobile electric control system is made as the non-normal working pattern, make automobile be in the failure operation state, to reach the purpose that fault is set.Shared condition indication circuit comprises resistance R
4～6, aerotron Q
2～3, diode D
2And LED
1～2, aerotron Q wherein
2Grounded emitter, its base stage is through resistance R
5Meet diode D respectively
2And LED
1, LED
1～2Negative pole all through resistance R
4Ground connection, LED
2Positive pole meet aerotron Q
3Emitter, aerotron Q
3Emitter power connection V
CC, its base stage meets aerotron Q respectively
2Collecting electrode, through resistance R
6Power connection V
CCThe shared same condition indication circuit of whole fault simulation device, as long as there is a way control switch circuit in running order, i.e. bistable switching circuit output high level, LED
1Just glow, have fault to exist in the signal automobile ECU control system, have only when all master cock circuit are not worked LED
1Just very low level extinguish aerotron Q simultaneously
1By, aerotron Q
2Must conduct LED
2Just very high level glow green, the signal fault get rid of fully.
Bistable switching circuit also can adopt the singly-bound bistable switching circuit, its output termination master cock circuit, and its principle of work is the same.
The utility model is controlled " switching or the high and low current potential " state that reaches connection line between computer and the power element between each sensor and the computer with each way control switch of fault simulation device, thereby automobile electric control system is made as the non-normal working pattern, make automobile be in the failure operation state, to reach the purpose that fault is set.During use, teacher can set in advance any fault or the many places failure operation state of automobile according to lecture contents, when fault is provided with, just any sensor or power element can be made as failure mode as long as click button, and fault-indicating lamp sends ruddiness, exemplary system is in the failure operation state, and student's process is determined trouble location to the analysis and judgement of phenomenon of the failure or with the measurement of diagnostic aid, and gets rid of fault.During trouble removal, click button and just finished, fault-indicating lamp becomes green by ruddiness.This device realized without detriment to the fault setting of vehicle and the operating process of trouble-shooting, and exercise student ' is to the analysis and judgement ability of phenomenon of the failure, and grasps and how to search and handling failure with automotive diagnosis instrument equipment, really to reach the purpose of gearing the study to practical use.
Claims (6)
1, a kind of fault simulation device of automobile ECU complex control system, it is characterized in that: comprise the fault simulation circuit that condition indication circuit and many groups are made up of bistable switching circuit, master cock circuit, default fault end, wherein the master cock circuit comprises aerotron and relay, the mouth correspondence of bistable switching circuit connects master cock circuit and condition indication circuit, the normally closed contact of relay is serially connected between the controlling computer of automobile ECU complex control system and sensor, the power element, and its open contact is serially connected between controlling computer and the default fault end.
2, the fault simulation device of automobile ECU complex control system as claimed in claim 1 is characterized in that: bistable switching circuit adopts two key bistable switching circuits, comprises button AN
1～2, resistance R
1～2, capacitor C and clock circuit U, wherein power supply V
CCConnect 4 pin, 8 pin of clock circuit U respectively, through resistance R
1Connect 2 pin of clock circuit U, through button AN
2Connect 6 pin of clock circuit U, the 1 pin ground connection of clock circuit U, its 2 pin, 6 pin, 5 pin correspondences are through button AN
1, resistance R
2, capacitor C ground connection, its 3 pin is as output termination master cock circuit and condition indication circuit.
3, the fault simulation device of automobile ECU complex control system as claimed in claim 1 is characterized in that: bistable switching circuit adopts the singly-bound bistable switching circuit, its output termination master cock circuit and condition indication circuit.
4, the fault simulation device of automobile ECU complex control system as claimed in claim 1, it is characterized in that: the master cock circuit comprises aerotron Q
1, relay J, resistance R
3With diode D
1, aerotron Q wherein
1Base stage through resistance R
3Connect the mouth of bistable switching circuit, its grounded emitter, its collecting electrode is respectively through relay J, diode D
1Power connection V
CC
5, the fault simulation device of automobile ECU complex control system as claimed in claim 1 is characterized in that: default fault end comprises the power connection positive pole, connects bonding, off state.
6, the fault simulation device of automobile ECU complex control system as claimed in claim 1, it is characterized in that: condition indication circuit comprises resistance R
4～6, aerotron Q
2～3, diode D
2And LED
1～2, aerotron Q wherein
2Grounded emitter, its base stage is through resistance R
5Meet diode D respectively
2Negative pole and LED
1Positive pole, diode D
2Positive pole connect the mouth of bistable switching circuit, LED
1～2Negative pole all through resistance R
4Ground connection, LED
2Positive pole meet aerotron Q
3Emitter, aerotron Q
3Collecting electrode power connection V
CC, its base stage meets aerotron Q respectively
2Collecting electrode, through resistance R
6Power connection V
CC
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216787 CN2619839Y (en) | 2003-05-06 | 2003-05-06 | Fault simulator for automobile ECU integrated controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216787 CN2619839Y (en) | 2003-05-06 | 2003-05-06 | Fault simulator for automobile ECU integrated controlling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2619839Y true CN2619839Y (en) | 2004-06-09 |
Family
ID=34243179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03216787 Expired - Fee Related CN2619839Y (en) | 2003-05-06 | 2003-05-06 | Fault simulator for automobile ECU integrated controlling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2619839Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463010C (en) * | 2006-03-06 | 2009-02-18 | 成都运达创新科技有限公司 | Method for simulating faults of train |
| CN101551949B (en) * | 2008-04-03 | 2012-01-25 | 一汽丰田汽车销售有限公司 | Control device of teaching vehicle, teaching vehicle and vehicle teaching system formed by both |
| CN103926498A (en) * | 2013-01-11 | 2014-07-16 | 上海大众汽车有限公司 | Finished automobile dynamic diagnosis and test platform and method |
| CN104129317A (en) * | 2013-12-23 | 2014-11-05 | 武汉英康汇通电气有限公司 | Control method for immediately-charged trackless trolley |
| CN111445751A (en) * | 2020-04-17 | 2020-07-24 | 江苏桅杆电子科技有限公司 | Automobile electric control simulation system and method |
-
2003
- 2003-05-06 CN CN 03216787 patent/CN2619839Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463010C (en) * | 2006-03-06 | 2009-02-18 | 成都运达创新科技有限公司 | Method for simulating faults of train |
| CN101551949B (en) * | 2008-04-03 | 2012-01-25 | 一汽丰田汽车销售有限公司 | Control device of teaching vehicle, teaching vehicle and vehicle teaching system formed by both |
| CN103926498A (en) * | 2013-01-11 | 2014-07-16 | 上海大众汽车有限公司 | Finished automobile dynamic diagnosis and test platform and method |
| CN104129317A (en) * | 2013-12-23 | 2014-11-05 | 武汉英康汇通电气有限公司 | Control method for immediately-charged trackless trolley |
| CN111445751A (en) * | 2020-04-17 | 2020-07-24 | 江苏桅杆电子科技有限公司 | Automobile electric control simulation system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |