CN205068947U - Novel real standard of engine electric control system synthesis device - Google Patents
Novel real standard of engine electric control system synthesis device Download PDFInfo
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- CN205068947U CN205068947U CN201520768671.2U CN201520768671U CN205068947U CN 205068947 U CN205068947 U CN 205068947U CN 201520768671 U CN201520768671 U CN 201520768671U CN 205068947 U CN205068947 U CN 205068947U
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Abstract
The utility model provides a novel real standard of engine electric control system synthesis device belongs to car specialty teaching equipment technical field. The device includes rack, drive arrangement, desktop pick -up plate, module box, PC computer, multi -media detection control apparatus. The rack is the installation basis of this device, drive arrangement includes motor and sensor, the desktop pick -up plate includes engine ECU, engine ECU terminal and power control district, the module box is absolute construction, sets up on the panel, and it includes, and various sensors or executor, circuit diagram and the detection terminal of former car, signal simulation adjust, signal display, the PC computer is installed in one side of panel, and there are teaching software and theoretical checking system in inside, multi -media detection control apparatus installs at the table of rack internally. The device can the implementation system operation, signal simulation, trouble setting, fault detection, test multiple functions such as grade. Complete equipment compact structure, reliable operation, easy to assemble and maintenance.
Description
Technical field
The utility model provides a kind of new work engine electric-control system comprehensive training device, belong to automobile major teaching equipment technical field, can be used for universities and automobile factory's engine electric-controlled system experimental teaching, to reach object that is directly perceived, vivid, convenient, that improve experiment teaching effect.
Background technology
Along with the development of automotive engineering, electric-control motor is widely used on Hyundai Motor.The electronic control system of electric-control motor comprises sensor, actuator and ECU, the detection of the wherein study of circuit diagram, sensor and actuator is the main points of electric-control motor fault diagnosis, how more directly perceived, efficiency learns these contents higher, is a great problem run in electric-control motor teaching.Automobile major teaching equipment efficiently solves this problem, and existing engine electric-controlled system comprehensive training device has: (1) engine coolant temperature observing and controlling practice teaching table, this practical traning platform can only realize observing and controlling and the display of engine coolant temperature.(2) based on the vehicle practice teaching table of singlechip technology, this practical traning platform can only real simulation automobile speed and engine water temperature control fault.(3) automobile sensor actuator practical traning platform, this practical traning platform can realize observing and controlling compared with entry and display, also devises diagnostic module, can in-site modeling fault, but function or limited, student can not generate appraisal result after fixing a breakdown and terminating automatically.In sum, be necessary to be improved.
Summary of the invention
The utility model is intended to solve many weak points such as automotive electronic control system systimatic teaching equipment function is limited, examination system is not advanced, and then provides a kind of multi-functional, advanced technology, simple to operation, visual pattern containing the new work engine electric-control system comprehensive training device that automatically can generate the examination system of appraisal result.
The utility model is achieved through the following technical solutions:
A kind of new work engine electric-control system comprehensive training device, special character is, its structure comprises: stand 1, drive unit 2, desktop check-out console 3, modular cartridge 4, PC computer 5, multimedia detection control apparatus 6.
Described stand 1 comprises desktop 1-1, a panel 1-2 and four universal caster wheel 1-3, and its effect is the installation foundation of other parts.
Described drive unit 2 comprises motor 2-1, wheel 2-2 occurs signal, the CMPS Camshaft Position Sensor 2-3 of former car and crankshaft position sensor 2-4, and its effect produces CMPS Camshaft Position Sensor signal and CRANK SENSOR.
Described desktop check-out console 3 comprises Engine ECU 3-1, Engine ECU terminal 3-2 and Energy control district 3-3.Described Engine ECU 3-1 is former car ECU (Electrical Control Unit); Described Engine ECU terminal 3-2, conveniently detects and arranges, the same with former car of its number of terminals and terminal arrangement; Described Energy control district 3-3 comprises ignition switch 3-3-1, fuse 3-3-2, relay 3-3-3, the diagnose connector 3-3-4 of former car.
Described modular cartridge 4 is absolute construction, is separately positioned on panel 1-2, comprises all sensors of engine and actuator.Each modular cartridge 4 has independent current source, and it comprises the various sensor of former car or actuator 4-1, circuit diagram and detection terminal 4-2, signal imitation regulates 4-3, Signal aspects 4-4.The simulation of voltage, resistance, waveform can be realized, the voltage signal of current sensor and actuator can be shown and by detection terminal, the voltage of sensor and actuator, waveform are measured, can also with reference to circuit diagram, from front portion, modular cartridge 4 and Engine ECU are coupled together with wire 6-5, realize the operation of whole electric-control system.
Described PC computer 5 is arranged on the side of panel 1-2, and there are teaching software and checking system in inside, can carry out on-the-spot teaching in conjunction with material object, can also Stochastic choice test question, and can automatically appraise.
Described multimedia detection control apparatus 6 is arranged in the table body below desktop 1-1, inside there are the connecting line 6-1 be connected with Engine ECU terminal, the connecting line 6-2 be connected with the rear portion of modular cartridge and multimedia management system 6-3, PC computer 5 is connected with multimedia detection control apparatus 6 by data line 6-4, is used for realizing the operation and management of whole device.
A kind of new work engine electric-control system comprehensive training device, adopt former car sensor, actuator, ECU and circuit, utilize the collaborative work of PC computer, multimedia detection control apparatus and signal imitation regulating device, realize the several functions such as system cloud gray model, signal imitation, fault verification, fault detect, testing evaluation.Package unit compact conformation, reliable operation, facilitates installation and maintenance.Efficiently solved the shortcomings and deficiencies of prior art existence by the utility model, and then the new work engine electric-control system comprehensive training device that a kind of function is many, simple to operation, automatically can generate appraisal result is provided.
Accompanying drawing explanation
Fig. 1: be the structural upright schematic diagram of the present embodiment;
Fig. 2: be the circuit connection diagram of the present embodiment;
In the drawings, 1, stand, 2, drive unit, 3, desktop check-out console, 4, modular cartridge, 5, PC computer, 6, multimedia detection control apparatus, 1-1, desktop, 1-2, panel, 1-3, universal caster wheel, 2-1, motor, 2-2, signal are taken turns, 2-3, CMPS Camshaft Position Sensor; 2-4, crankshaft position sensor, 3-1, Engine ECU, 3-2, Engine ECU terminal, 3-3, Energy control district, 3-3-1, ignition switch, 3-3-2, fuse, 3-3-3, relay, 3-3-4, diagnose connector, 4-1, sensor or actuator, 4-2, circuit diagram and detection terminal, 4-3, signal imitation regulate, 4-4, Signal aspects, 6-1, with the connecting line of Engine ECU terminal, 6-2, rear portion connecting line, 6-3, multimedia management system, 6-4, data line, 6-5, wire.
Embodiment
Referring to accompanying drawing, provide embodiment of the present utility model, be used for being described further formation of the present utility model.
A kind of new work engine electric-control system comprehensive training device of the present embodiment, for the practical teaching of automotive electronic control system system.This device comprises stand 1, drive unit 2, desktop check-out console 3, modular cartridge 4, PC computer 5, multimedia detection control apparatus 6.Stand 1 is the installation foundation of this device; Drive unit comprises motor 2-1, signal wheel 2-2, CMPS Camshaft Position Sensor 2-3 and crankshaft position sensor 2-4; Desktop check-out console 3 comprises Engine ECU 3-1, Engine ECU terminal 3-2 and Energy control district 3-3.Modular cartridge 4 is absolute construction, is arranged on panel 1-2, and it comprises the various sensor of former car or actuator 4-1, circuit diagram and detection terminal 4-2, signal imitation regulates 4-3, Signal aspects 4-4.PC computer 5 is arranged on the side of panel 1-2, and there are teaching software and theoretical checking system in inside.Multimedia detection control apparatus 6 is arranged in the table body of stand 1, inside have the connecting line 6-1 be connected with Engine ECU terminal, the connecting line 6-2 be connected with the rear portion of modular cartridge and multimedia management system 6-3, this device can realize the several functions such as system cloud gray model, signal imitation, fault verification, fault detect, testing evaluation.Package unit compact conformation, reliable operation, facilitates installation and maintenance.
Described stand 1 is the installation foundation of miscellaneous part, comprises stainless steel desktop 1-1, aluminium alloy panel 1-2 and four nylon universal caster wheel 1-3.Described panel 1-2 is fixed by bolts on desktop 1-1, and described four universal caster wheel 1-3 are connected by bolt with the supporting leg of desktop 1-1, and four universal caster wheel 1-3 can move arbitrarily angled.Described desktop 1-1 arranges desktop check-out console 3, has multimedia detection control apparatus 6, the platen below desktop 1-1 has drive unit 2 in the table body below desktop 1-1, PC computer 5 is laid in the side of stand 1.
Described drive unit 2 comprises motor 2-1, wheel 2-2 occurs signal, the CMPS Camshaft Position Sensor 2-3 of former car and crankshaft position sensor 2-4, because wheel 2-2 occurs for motor 2-1 and signal, structure is larger, the position of modular cartridge fails to lay down, so, be placed on separately outside.
Described motor 2-1 bolt and support are fixed on the platen below desktop, adopt toothed gearing electric motor, and machine governor coordinates reducing motor to use, and realized 0 ~ 300r/min speed governing of motor by operation knob, operating voltage is 220V, and power is 300W.
Described signal wheel 2-2 is arranged on the output shaft of motor 2-1, being driven, signal wheel surface magnetization treatment, providing magnetic force cutoff signal by rotating to sensor by motor 2-1.Described CMPS Camshaft Position Sensor 2-3 and crankshaft position sensor 2-4 adopts the parts of former car, be fixed on the platen of signal wheel 2-2 side with bolt and support, for generation of engine rotational speed signal and a cylinder top dead center position signal, and the signal of generation is transported to CMPS Camshaft Position Sensor modular cartridge and crankshaft position sensor modular cartridge by wire.
Described desktop check-out console 3 comprises Engine ECU 3-1, Engine ECU terminal 3-2 and Energy control district 3-3, and it is fixed by bolts on desktop 1-1.
Described Engine ECU 3-1 is the former car ECU of engine, is arranged on desktop check-out console 3 by bolt, and it is by wire connecting engine ECU terminal 3-2.
Described Engine ECU terminal 3-2, is arranged on desktop check-out console 3 by bolt, conveniently detects and arrange, and the same with former car of its number of terminals and terminal arrangement, is connected with multimedia management system 6-3 by wire.When needs are diagnosed various sensor and actuator, from front portion with wire 6-5, detection terminal 4-2 can be connected with the corresponding jack of Engine ECU terminal 3-2, carry out every detection.
Described Energy control district 3-3 is former car engine power input, comprises the ignition switch 3-3-1 of former car, fuse 3-3-2, relay 3-3-3, diagnose connector 3-3-4, and these parts are arranged on desktop check-out console 3 by bolt,
Described aluminium alloy modular cartridge 4 is absolute construction (as shown in Figure 1), and panel 1-2 is processed with deep trouth equal-sized with modular cartridge 4, and modular cartridge 4 is plugged in the deep trouth of panel 1-2.Each modular cartridge 4 has independent current source, comprises air flow sensor modular cartridge, crankshaft position sensor modular cartridge, CMPS Camshaft Position Sensor modular cartridge, cooling-water temperature transmitter modular cartridge, intake air temperature sensor modular cartridge, throttle position sensor modular cartridge, detonation sensor modular cartridge, lambda sensor modular cartridge, fuel injector modular cartridge, spark plug modular cartridge.Described fuel injector modular cartridge, measuring cup is placed with in the below of each cylinder injector, during the work of this device, oil pump by test fluid (in order to safety, do not adopt fuel oil) pump in oil drum, according to engine operation order and working condition, a certain amount of test fluid is sprayed into measuring cup by fuel injector in order, so that student observes.
On the panel of described modules box 4 (as shown in Figure 1) sensor or the actuator 4-1 of former car engine is installed, the two connects with bolt.
On the panel of described modular cartridge 4 (as shown in Figure 1) circuit diagram and the detection terminal 4-2 of sensor and actuator is installed, the two connects with bolt.Student can refer to circuit diagram, is measured the voltage of sensor and actuator, waveform by detection terminal 4-2.Also with reference to circuit diagram, from front portion with wire 6-5, detection terminal 4-2 can be connected with the corresponding jack of Engine ECU terminal 3-2.
On the panel of described modular cartridge 4 (as shown in Figure 1) Signal aspects instrument 4-3 is installed, the two connects with bolt, can show the voltage signal of current sensor and actuator.
On the panel of described modular cartridge 4 (as shown in Figure 1) be provided with signal imitation device 4-4, the two connects with bolt.The simulation of voltage, resistance, waveform can be realized.Comprising air flow sensor control handle, engine coolant temperature adjusting knob, intake air temperature adjusting knob, by rotating these knobs, the parameter of input Engine ECU 3-1 can be changed.The change of throttle position signal can also be simulated in addition by manual throttle opening.As control signal analogue means 4-4, by observing the situation of change of each cylinder injector distributive value, the principle of work of engine electric-controlled system can be understood.
Described modules box 4(is as shown in Figure 1) be connected with multimedia management system 6-3 by rear portion connecting line 6-2, multimedia management system 6-3 is connected by wire with Engine ECU terminal 3-2 again, like this, each modular cartridge 4 just defines loop with Engine ECU 3-1, when energized, whole electric-control system has just run.
Described multimedia detection control apparatus 6(is as shown in Figure 1, 2) be arranged on below desktop 1-1 table body, inside there are the connecting line 6-1 be connected with Engine ECU terminal, the connecting line 6-2 be connected with the rear portion of modular cartridge and multimedia management system 6-3, PC computer 5 is connected with multimedia detection control apparatus 6 by data line 6-4, is used for realizing the operation and management of whole device.
Described multimedia management system 6-3 is modular cartridge 4 and the connecting circuit board of Engine ECU 3-1, is arranged in a body, respectively by connecting line 6-1,6-2 and data line 6-4 connecting engine ECU terminal 3-2, modules box 4 and PC computer 5 with bolt.It has two functions: first is fault verification function, and the circuit board of multimedia management system 6-3 arranges some normal closing type relays, when manipulating the button on PC computer, the circuit between modular cartridge 4 and Engine ECU can be made to disconnect.Second is signals collecting function, and the connection signal of the command signal of PC computer 5 and the circuit between modular cartridge 4 and Engine ECU, can pass to it.
Described PC computer 5 is placed in the side of stand 1, inside has teaching software and checking system, and this system is developed based on JAVAVERSION " 1.6.0-10 " version.There is the file such as structural principle picture, video, PPT of abundant engine electric-controlled system in teaching software, can transfer according to teaching demand, complete the teaching purpose of engine electric-controlled system in conjunction with material object better; Checking system is the software realizing carrying out examination examination question automatic scoring.
Have a large amount of theoretical exam pool for engine electric-controlled system in described PC computer 5, can distribute at random, student is appraised automatically by the answer of examination question, realizes the examination to student's knowwhy.
Also have in described PC computer 5 and put into practice exam pool in a large number for engine electric-controlled system, student randomly draws practical test topic on PC computer 5, then and there detection failure and get rid of, PC computer 5 marks to the operational circumstances of student automatically.
Described PC computer 5 is also arranged a key break key and each fault key, click a key break key, all circuit (disconnecting by all relays in multimedia management system 6-3) between modular cartridge 4 and Engine ECU 3-1 can be disconnected; Also can click one or several fault key, allow some modular cartridges 4 or certain several modular cartridge 4 disconnect with Engine ECU 3-1, now, only have one or part of module box 4 and Engine ECU 3-1 to form loop.
A kind of new work engine electric-control system comprehensive training device, its fault verification and automatic scoring principle as follows:
The circuit board of multimedia management system 6-3 arranges some normal closing type relays, and under normal circumstances, circuit is conducting.Setting program in PC computer 5, and practical test topic option is set in the screen of PC computer 5.When a certain practical test topic of student's Stochastic choice on PC computer 5, PC computer 5 sends instruction, a certain normal closing type relay on multimedia management system 6-3 circuit board disconnects, now be disconnected a certain circuit of modular cartridge 4 and Engine ECU 3-1, now student can read the diagnostic trouble code relevant with this open circuit with demoder, for this diagnostic trouble code, when student measures according to detecting step, this circuit not conducting can be found.When student fixes a breakdown, as from when connecting a certain terminal and the Engine ECU terminal 3-2 of a certain sensor above with wire 6-5, the connection of circuit is transferred to PC computer 5 by data line 6-4 by multimedia management system 6-3, PC computer 5 can judge the correctness of student's line, thus carry out automatic scoring, and generate appraisal result, realize the examination to student's practical knowledge.As: student extracts practical test topic A, and student with the explanation of demoder read failure code is: engine-cooling system line fault.Student measures between the terminal of cooling-water temperature transmitter and between engine coolant temperature sensor terminal and Engine ECU terminal 3-2 with multimeter, find this circuit not conducting, so he is connected wire 6-5 between cooling-water temperature transmitter terminal with Engine ECU terminal 3-2 corresponding jack, whether the operation that can be detected student by multimedia management system 6-3 is correct, be transferred to PC computer 5, PC computer 5 by data line 6-4 automatically to appraise.
The operating process of described a kind of new work engine electric-control system comprehensive training device is as follows:
Start: plug in line, and close master switch, system started up, now modular cartridge 4 and Engine ECU 3-1 define loop by rear portion connecting line 6-2 and multimedia management system 6-3, and student can observe spark plug sparking and fuel injector oil spout situation.
Contrast explanation: explain the composition of sensor on this engine and actuator, principle of work and respective effect in conjunction with the modular cartridge 4 on panel 1-2.
Detect: the circuit diagram transferring a certain sensor or actuator on PC computer 5, explain the detection method of a certain sensor or actuator, comprise the detection of voltage, resistance, waveform.
Movement across lines: click a key break key on PC computer 5, all disconnects each modular cartridge 4 with the circuit of Engine ECU, and now, even if power supply connects, whole electric-control system can not run.At this moment, with reference to circuit diagram, from front portion wire 6-5, the corresponding jack of the terminal modular cartridge 4 and Engine ECU terminal 3-2 can be coupled together, realizes the operation of whole electric-control system.
Simulation: manipulation signal imitation device 3-3, as rotary air flow sensor control handle, engine coolant temperature adjusting knob, intake air temperature adjusting knob or manually change throttle opening, change input signal, observe the change of each cylinder injector distributive value.
Theoretical test: student extracts the theory test question in PC computer 5, and student answers examination question, is automatically appraised by the teaching software of PC computer 5 and theoretical checking system, realizes the examination to student's knowwhy.
Practical test: student extracts some practical tests topic in PC computer 5, and student reads relevant diagnostic trouble code with demoder, for these diagnostic trouble code, when student detects according to detecting step, can find some circuit not conducting.Student transfers the circuit diagram in PC computer, contrast circuit diagram, couples together the corresponding jack of the respective terminal in modular cartridge 4 and Engine ECU terminal 3-2 from front portion wire 6-5, now, PC computer 5 can provide appraisal result, realizes the examination to student's practical knowledge.
Claims (1)
1. a new work engine electric-control system comprehensive training device, is characterised in that, its structure comprises:
Stand (1), comprises desktop (1-1), panel (1-2) and four universal caster wheels (1-3), and its effect is the installation foundation of other parts;
Drive unit (2), comprises motor (2-1), signal wheel (2-2), the CMPS Camshaft Position Sensor (2-3) of former car and crankshaft position sensor (2-4), and its effect is generation CMPS Camshaft Position Sensor signal and CRANK SENSOR; Described motor (2-1) bolt and support are fixed on the platen below desktop; Described signal wheel (2-2) is arranged on the output shaft of motor (2-1); Described CMPS Camshaft Position Sensor (2-3) and crankshaft position sensor (2-4) adopt the parts of former car, are fixed on the platen of signal wheel (2-2) side with bolt and support;
Desktop check-out console (3), comprise Engine ECU (3-1), Engine ECU terminal (3-2) and Energy control district (3-3), these parts are all be arranged on desktop check-out console (3) by bolt; Described Engine ECU (3-1) is former car ECU (Electrical Control Unit); Described Engine ECU terminal (3-2), conveniently detects and arranges, the same with former car of its number of terminals and terminal arrangement; Described Energy control district (3-3) comprises ignition switch (3-3-1), fuse (3-3-2), relay (3-3-3), the diagnose connector (3-3-4) of former car;
Modular cartridge (4) is absolute construction, is plugged on respectively in the deep trouth of panel (1-2), comprises all sensors of engine and actuator; Each modular cartridge (4) has independent current source, it comprises the various sensor of former car or actuator (4-1), circuit diagram and detection terminal (4-2), signal imitation regulates (4-3), Signal aspects (4-4), and this four part is all be fixed by bolts on the panel of modular cartridge (4); Described modular cartridge (4) can realize the simulation of voltage, resistance, waveform, the voltage signal of current sensor and actuator can be shown and by detection terminal, the voltage of sensor and actuator, waveform are measured, can also with reference to circuit diagram, from front portion, modular cartridge (4) and Engine ECU (3-1) are coupled together with wire (6-5), realize the operation of whole electric-control system;
PC computer (5), is arranged on the side of panel (1-2), and there are teaching software and checking system in inside, can carry out on-the-spot teaching in conjunction with material object, can also Stochastic choice test question, and can automatically appraise;
Multimedia detection control apparatus (6), be arranged in the table body of desktop (1-1) below, inside there are the connecting line (6-1) be connected with Engine ECU terminal, the connecting line (6-2) be connected with the rear portion of modular cartridge and multimedia management system (6-3), PC computer (5) is connected with multimedia detection control apparatus (6) by data line (6-4), is used for realizing the operation and management of whole device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520768671.2U CN205068947U (en) | 2015-09-30 | 2015-09-30 | Novel real standard of engine electric control system synthesis device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520768671.2U CN205068947U (en) | 2015-09-30 | 2015-09-30 | Novel real standard of engine electric control system synthesis device |
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| CN205068947U true CN205068947U (en) | 2016-03-02 |
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| CN201520768671.2U Expired - Fee Related CN205068947U (en) | 2015-09-30 | 2015-09-30 | Novel real standard of engine electric control system synthesis device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869502A (en) * | 2016-03-28 | 2016-08-17 | 苏州工业园区职业技术学院 | Automobile electronic control system ECU (Electronic Control Unit) experimental testing instrument |
| CN106251765A (en) * | 2016-09-29 | 2016-12-21 | 天津市征创科技有限公司 | A kind of BBG Internet of Things Wireless remote control teaching system |
| CN110910697A (en) * | 2019-07-10 | 2020-03-24 | 中国人民解放军陆军工程大学 | Maintenance training platform for engine electric control system of armored vehicle diesel engine |
| CN111768683A (en) * | 2020-05-09 | 2020-10-13 | 广东中才教学仪器有限公司 | Whole car detecting system of new energy automobile |
| CN112037603A (en) * | 2020-09-15 | 2020-12-04 | 广州车拉夫汽车科技有限公司 | Automobile teaching system |
| CN112651623A (en) * | 2020-12-23 | 2021-04-13 | 贵州树精英教育科技有限责任公司 | Academic ability level testing system and algorithm |
| CN113823143A (en) * | 2021-09-28 | 2021-12-21 | 北京智扬北方国际教育科技有限公司 | Detection table matched with pure electric vehicle training device and use method thereof |
-
2015
- 2015-09-30 CN CN201520768671.2U patent/CN205068947U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869502A (en) * | 2016-03-28 | 2016-08-17 | 苏州工业园区职业技术学院 | Automobile electronic control system ECU (Electronic Control Unit) experimental testing instrument |
| CN106251765A (en) * | 2016-09-29 | 2016-12-21 | 天津市征创科技有限公司 | A kind of BBG Internet of Things Wireless remote control teaching system |
| CN110910697A (en) * | 2019-07-10 | 2020-03-24 | 中国人民解放军陆军工程大学 | Maintenance training platform for engine electric control system of armored vehicle diesel engine |
| CN111768683A (en) * | 2020-05-09 | 2020-10-13 | 广东中才教学仪器有限公司 | Whole car detecting system of new energy automobile |
| CN112037603A (en) * | 2020-09-15 | 2020-12-04 | 广州车拉夫汽车科技有限公司 | Automobile teaching system |
| CN112651623A (en) * | 2020-12-23 | 2021-04-13 | 贵州树精英教育科技有限责任公司 | Academic ability level testing system and algorithm |
| CN113823143A (en) * | 2021-09-28 | 2021-12-21 | 北京智扬北方国际教育科技有限公司 | Detection table matched with pure electric vehicle training device and use method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20160930 |