CN202394438U - Teaching equipment for automobile engine electric control system training - Google Patents
Teaching equipment for automobile engine electric control system training Download PDFInfo
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- CN202394438U CN202394438U CN2011205329318U CN201120532931U CN202394438U CN 202394438 U CN202394438 U CN 202394438U CN 2011205329318 U CN2011205329318 U CN 2011205329318U CN 201120532931 U CN201120532931 U CN 201120532931U CN 202394438 U CN202394438 U CN 202394438U
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Abstract
The utility model discloses teaching equipment for automobile engine electric control system training, wherein the equipment comprises an external panel C, a signal outputting apparatus A, a fault setting system B and a group of test points corresponding to real work troubleshooting positions, the signal outputting apparatus A for testing electric control element signals under real working conditions of the whole equipment is connected with an engine ECU, the fault setting system B generates fault signals of a coolant temperature sensor and a fuel injector through simulation, and transmits the fault signals to the engine ECU, and the external panel C is connected with the signal outputting apparatus A. The teaching equipment does not damage the body of the engine, thereby prolonging the service life of the engine for training; and can simulate a plurality of fault states, thereby ensuring the facticity and confidentiality of fault setting and increasing the working efficiency of student training and skill examination.
Description
Technical field
The utility model relates to a kind of teaching equipment, specifically a kind of automotive electronic control system system practice-training teaching equipment that is used to impart knowledge to students.
Background technology
Practice-training teaching be cultivate student's professional ethics, vocational skills and employment foundation ability important by way of, best embody the applied characteristic of professorship's personnel training, be one of core content that intension is built in the professorship education evolution.Along with the fast development of professorship education, each school also increases the demand of real standard equipment greatly.
The structure of electric-control motor sensor and actuator, principle of work detects and troubleshooting methodology is the emphasis and the difficult point of automobile major teaching.Electric-control motor system practice-training teaching equipment can combine theory teaching and practical teaching, lets students in learning process near practical work process, is beneficial to the raising of comprehensive quality of students.
Mostly the electric-control motor stand that uses in all kinds of schools at present is that teaching equipment factory makes, some problem below existing:
1, stand is the basis with single engine assembly, is aided with other parts and processes.There is not the stand of PTO to be difficult to simulate rolling stock real work operating mode.There is not this external environment condition of nacelle to make stand and real work scene inconsistent yet.Some does the real student who instructs can't find fuse box on real vehicle position with stand.
2, the theory teaching of principle of work for ease, the input of stand all is on a circuit board of external engine, to carry out, though intuitive and convenient is not inconsistent with the detection position of actual automobile maintenance enterprise, has run counter to the principle of real standard authenticity.
3, in order not destroy the stand engine, it generally all is break-make road or plug electric elements interface simply that test-rig failure is provided with.So just can't simulate the fault of some distorted signals, the function of stand is restricted.Plug interface continually, also can destroy the connection of interface, thereby damage engine.
4, because many enterprises make this link, the cost of stand is significantly improved, increased the equipment purchase expense of school.
Summary of the invention
In order to overcome the problem that existing practical traning platform frame exists.The purpose of the utility model provides a kind of automotive electronic control system system practice-training teaching equipment.This equipment does not destroy engine body, has prolonged the mission life of real standard with engine; The various faults state be can simulate, authenticity and disguise that fault is provided with guaranteed; Improved the work efficiency of real standard of student and technical ability examination.
The purpose of the utility model realizes through following technical scheme:
A kind of automotive electronic control system system practice-training teaching equipment; It is characterized in that: this equipment comprises that exterior panel C, signal produce the measuring point that device A, fault are provided with the B of system and a group and real work maintenance position consistency, and the signal that can test out the electric control element signal under the car load practical working situation produces device A and is connected with Engine ECU; Fault is provided with the fault-signal that the B of system simulation produces cooling-water temperature transmitter and fuel injector, and this fault-signal is transferred to Engine ECU; Exterior panel C produces device A with signal and is connected.
In the utility model; One group of measuring point comprises air flowmeter measuring point 1, TPS measuring point 2, cooling-water temperature transmitter measuring point 3, intake air temperature sensor measuring point 4, Hall element measuring point 5, crank position and speed probe measuring point 6,1; 2 cylinder detonation sensor measuring points, 7,3,4 cylinder detonation sensor measuring points 8, lambda sensor measuring point 9, charcoal jar solenoid valve measuring point 10,1 cylinder nozzle solenoid valve measuring point 11,2 cylinder nozzle solenoid valve measuring points 12,3 cylinder nozzle solenoid valve measuring points 13,4 cylinder nozzle solenoid valve measuring points 14.Fault is provided with the variation of the B of system simulation coolant temperature signal voltage and is transferred to ECU.Fault is provided with the B of system through the moment of simulation ECU output low level signal and the fault-signal of duration realization fuel injector.
The utility model does not shift out engine from car load, each parts of engine are all in original position of car load.Only the ECU to former car handles, and can test out the electric control element signal under the car load practical working situation.Owing to do not destroy engine body, prolonged the mission life of real standard with engine.
Make pick-up unit in the actual detected position of each sensor and actuator, identical with the real work situation, rather than on the teaching demonstration panel additional testing detection terminal, improved the work efficiency of real standard of student and technical ability examination.
Cooling-water temperature transmitter fault, fuel injector fault are common engine failure phenomenons.Cooling-water temperature transmitter fault of the present invention, fuel injector fault are to be provided with not destroying under the engine body situation.Use device B, simulation coolant temperature signal change and are transferred to ECU, need not to open circuit the cooling-water temperature transmitter fault is set; The fuel injector fault simulation is to realize through the moment and the duration of simulation ECU output low level signal.
Compared with prior art, the setting of the utility model fault does not destroy engine body, prolongs the mission life of real standard with engine; Can simulate the various faults state; Guarantee authenticity and disguise that fault is provided with; Improve the work efficiency of real standard of student and technical ability examination.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the utility model fault simulation process flow diagram.
Embodiment
The described automotive electronic control system of a kind of the utility model system practice-training teaching equipment; As shown in Figure 1; This equipment comprises that exterior panel C, signal produce the measuring point that device A, fault are provided with the B of system and a group and real work maintenance position consistency, and the signal that can test out the electric control element signal under the car load practical working situation produces device A and is connected with Engine ECU; Fault is provided with the fault-signal that the B of system simulation produces cooling-water temperature transmitter and fuel injector, and this fault-signal is transferred to Engine ECU; Exterior panel C produces device A with signal and is connected.
The working signal of the main electric control element of engine is transferred on the exterior panel through device A from ECU, and signal is true and reliable, does not influence the automobile operate as normal.One group of measuring point comprises air flowmeter measuring point 1, TPS measuring point 2, cooling-water temperature transmitter measuring point 3, intake air temperature sensor measuring point 4, Hall element measuring point 5, crank position and speed probe measuring point 6,1; 2 cylinder detonation sensor measuring points, 7,3,4 cylinder detonation sensor measuring points 8, lambda sensor measuring point 9, charcoal jar solenoid valve measuring point 10,1 cylinder nozzle solenoid valve measuring point 11,2 cylinder nozzle solenoid valve measuring points 12,3 cylinder nozzle solenoid valve measuring points 13,4 cylinder nozzle solenoid valve measuring points 14.Fault is provided with the variation of the B of system simulation coolant temperature signal voltage and is transferred to ECU.Fault is provided with the B of system through the moment of simulation ECU output low level signal and the fault-signal of duration realization fuel injector.Pick-up unit is made in each element actual detected position, and the student can detect the direct current resistance and the voltage of computer and sensor through the instrumentation instrument at pick-up unit, and guarantees the stability and the validity of measuring-signal.Guarantee that the operation of students process is consistent with practical work process.
Fig. 2 is the utility model fault simulation process flow diagram.Fault is provided with the B of system and is based on Virtual Instrument Development, and simulation produces the fault-signal of cooling-water temperature transmitter and fuel injector, and this signal is transferred to Engine ECU.
When there is fault in cooling-water temperature transmitter, engine cold-start difficulty, unstable idle.Because the core parts of the cooling-water temperature transmitter that motor car engine is used are thermistors, the different thermistor resistances of engine operating temperature can change, thereby the signal voltage that is transferred to ECU can change.ECU judges the temperature of engine operation according to the signal voltage that receives, thereby revises the distributive value and the duration of ignition.If cooling-water temperature transmitter breaks down, the signal voltage that is transferred to ECU will produce deviation with standard value.Abnormal signal magnitude of voltage when using multimeter to measure fault generating, use device B simulates this magnitude of voltage, and it is inputed to Engine ECU cooling-water temperature transmitter signal terminal, simulates phenomenon of the failure.
When fuel injector breaks down, the engine shake, unstable idle speed, discharging is unusual.Fuel injector is a solenoid valve class actuator, engine according to the pulse signal of ECU with an amount of fuel injection in inlet manifold.Its two terminals all were not high level when fuel injector was not worked, when ECU is transferred to the fuel injector signal terminal with low level signal (ground voltage), and solenoid fuel injection valve work, fuel injector work.When if fuel oil supply system breaks down, the generation of the low level signal moment and duration all can produce deviation with normal value.Measure this abnormal pulse signal, use device B produces this pulse signal, and it is inputed to the engine fuel injector signal terminal, simulates phenomenon of the failure.
The setting of the utility model fault does not destroy engine body, prolongs the mission life of real standard with engine; Can simulate the various faults state; Guarantee authenticity and disguise that fault is provided with; Improve the work efficiency of real standard of student and technical ability examination.
Claims (4)
1. automotive electronic control system system practice-training teaching equipment; It is characterized in that: this equipment comprises that exterior panel (C), signal produce the measuring point that device (A), fault are provided with system (B) and a group and real work maintenance position consistency, and the signal that can test out the electric control element signal under the car load practical working situation produces device (A) and is connected with Engine ECU; Fault is provided with the fault-signal that system (B) simulation produces cooling-water temperature transmitter and fuel injector, and this fault-signal is transferred to Engine ECU; Exterior panel (C) produces device (A) with signal and is connected.
2. automotive electronic control system according to claim 1 system practice-training teaching equipment; It is characterized in that: one group of measuring point comprises air flowmeter measuring point (1), TPS measuring point (2), cooling-water temperature transmitter measuring point (3), intake air temperature sensor measuring point (4), Hall element measuring point (5), crank position and speed probe measuring point (6), 1; 2 cylinder detonation sensor measuring points (7), 3,4 cylinder detonation sensor measuring points (8), lambda sensor measuring point (9), charcoal jar solenoid valve measuring point (10), 1 cylinder nozzle solenoid valve measuring point (11), 2 cylinder nozzle solenoid valve measuring points (12), 3 cylinder nozzle solenoid valve measuring points (13), 4 cylinder nozzle solenoid valve measuring points (14).
3. automotive electronic control system according to claim 1 system practice-training teaching equipment is characterized in that: fault is provided with system (B) simulation coolant temperature signal voltage and changes and be transferred to ECU.
4. automotive electronic control system according to claim 1 system practice-training teaching equipment is characterized in that: fault is provided with system (B) through the moment of simulation ECU output low level signal and the fault-signal of duration realization fuel injector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205329318U CN202394438U (en) | 2011-12-19 | 2011-12-19 | Teaching equipment for automobile engine electric control system training |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205329318U CN202394438U (en) | 2011-12-19 | 2011-12-19 | Teaching equipment for automobile engine electric control system training |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202394438U true CN202394438U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205329318U Expired - Fee Related CN202394438U (en) | 2011-12-19 | 2011-12-19 | Teaching equipment for automobile engine electric control system training |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202394438U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831277A (en) * | 2018-08-23 | 2018-11-16 | 南京工业职业技术学院 | Multifunctional engine teaching bench |
| CN109637249A (en) * | 2019-01-14 | 2019-04-16 | 上海中侨职业技术学院 | A kind of air flow meter sensor fault analog detection connector and its application method |
| CN112037603A (en) * | 2020-09-15 | 2020-12-04 | 广州车拉夫汽车科技有限公司 | Automobile teaching system |
-
2011
- 2011-12-19 CN CN2011205329318U patent/CN202394438U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831277A (en) * | 2018-08-23 | 2018-11-16 | 南京工业职业技术学院 | Multifunctional engine teaching bench |
| CN108831277B (en) * | 2018-08-23 | 2024-05-14 | 南京工业职业技术学院 | Multifunctional engine teaching rack |
| CN109637249A (en) * | 2019-01-14 | 2019-04-16 | 上海中侨职业技术学院 | A kind of air flow meter sensor fault analog detection connector and its application method |
| CN112037603A (en) * | 2020-09-15 | 2020-12-04 | 广州车拉夫汽车科技有限公司 | Automobile teaching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20141219 |
|
| EXPY | Termination of patent right or utility model |