CN114487829A - Portable engine fault detector - Google Patents
Portable engine fault detector Download PDFInfo
- Publication number
- CN114487829A CN114487829A CN202210178057.5A CN202210178057A CN114487829A CN 114487829 A CN114487829 A CN 114487829A CN 202210178057 A CN202210178057 A CN 202210178057A CN 114487829 A CN114487829 A CN 114487829A
- Authority
- CN
- China
- Prior art keywords
- engine
- module
- control module
- power supply
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 62
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 230000008929 regeneration Effects 0.000 claims description 22
- 238000011069 regeneration method Methods 0.000 claims description 22
- 238000004806 packaging method and process Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 14
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a portable engine fault detector, which comprises a system fault detection and display module, a power supply control module and a portable box body, wherein the system fault detection and display module is connected with the power supply control module; by reading a sensor detection signal externally connected with the ECM, a fault point is displayed on a fault indicator lamp of a detection panel in real time, the oil pressure and the rotating speed of an engine can also be displayed on a nixie tube of the detection panel in real time, and the oil pressure can be adjusted in real time through an accelerator knob; the power supply control module is used for providing normal working voltage required by the detection system, controlling the on-off of a circuit power supply of the detection system and controlling the ignition start of the engine; the portable box of the tester encapsulates all system detection panels, wires and electronic components required by detection into the box body, thereby being convenient for carrying and testing; the invention can visually and conveniently detect the fault point of the engine, finally display the detection result in real time through the detection panel, is small and portable, and can conveniently and quickly troubleshoot the fault of the engine.
Description
Technical Field
The invention relates to the field of engine test control, in particular to a portable engine fault detector.
Background
When the engineering truck equipment such as a large excavator and the like is used, if a diesel engine fails, prompt information of the failure of the engine can be obtained on a control panel of the whole truck such as the excavator and the like, however, in the process of delivery inspection and maintenance of the transmitter, the transmitter is usually detached and separated from the whole truck for detection. Under the condition of off-line with a whole vehicle, how to obtain system related parameters of an engine and detect faults is a technical problem in the practical application process. The invention provides an off-line engine fault detector which is a device for off-line detection after an engine has a fault, the engine and the detector are connected through a data line, the ignition start of the engine is controlled by using the detector, the data of the engine after the engine is started are fed back through the detector in real time, and the detector can display whether the engine has a fault or not and the specific fault reason if the engine has the fault. The engine fault detector is manufactured into a portable box structure, and can realize primary real-time engine fault detection outside a repair shop and on the site of fault occurrence.
At present, some cases of engine fault testers exist, for example, the utility model with the patent number of CN202021421615.9 is an engine tester shell appearance design patent, and the technology of the invention is a system design of the engine fault tester, and is mainly focused on system fault detection and comprises a power supply control, a detector display panel and a portable box body.
The utility model patent of patent number CN201920896359.X designs an engine test experiment platform, can inspect the trouble of engine, but its volume is great, is applicable to the teaching aspect and the detection processing of maintenance factory, and the technique of the invention is more complete to the fault detection function of engine than it, and has more portability, practicality, universality.
By comparison, the multifunctional portable engine fault detector disclosed by the technical scheme of the invention has great advantages, can detect various parameters of the engine without dismounting the engine, and displays the specific reasons of the fault. The technical scheme of the invention can realize real-time detection, monitoring and transmission of local data of the high-pressure rail supply engine, the medium-pressure rail supply engine and the low-pressure common rail engine on line. The detector can be used for fault detection of the engine of a road running vehicle such as an automobile and the like, and can also be used for fault detection of the engine of a non-road running vehicle, for example: engineering machinery such as a forklift, an excavator, a loader, and the like.
Disclosure of Invention
The invention aims to provide a portable engine fault detector; the portable multifunctional power supply is characterized in that a cubic box is made of special plastics, so that the portable multifunctional power supply is convenient to carry, an internal detection panel and a circuit can be well protected, a 42-pin standard interface is adopted for data transmission to connect an engine and a detector, a test panel adopts visual and concise indicator lamps and nixie tubes to indicate various parameters, and a power supply control circuit adopts buttons and relays to start keys; the whole box body of the engine fault detector is portable and flexible in design, the connection of a data line is more universal and universal, the display of a test panel is concise and clear, and the control test is safer and more reliable.
The system comprises a system fault detection and display module, a power supply control module and a portable box body, wherein the power supply control module and the system fault detection and display module are fixedly arranged in the portable box body; the power supply control module is used for externally connecting a storage battery for testing power supply, starting a motor through a starting motor module connected with an engine for igniting the generator and controlling the on-off state of a power supply; the system fault detection and display Module is used for realizing a Control detection function of an Engine Control Module (ECM) and a display function of feedback data of an Engine built-in sensor.
The portable box body comprises a packaging portable box, a system detection panel and a bottom layer electromagnetic relay fixing panel; the packaging portable box is used for packaging the system detection panel, the electric wire and the electronic component into the cubic box body; the system detection panel is used for fixing a plurality of alarm indicator lamps, a rotating speed display nixie tube, an oil pressure display nixie tube, an accelerator adjusting knob, an engine stop control button and a DPF regeneration control button of the system fault detection and display module, and fixing a power supply positive and negative terminal, a starting button, a switch button and a data interface of the power supply control module; bottom electromagnetic relay fixed panel for place power control module's electromagnetic relay and the wiring between each module, electromagnetic relay fixes on the bottom panel, and bottom panel four corners sets up four spinal branch daggers and is used for fixed system to detect the panel, and the four corners of system detection panel is shaken the piece by 4 hexagon nuts and 4 springs and is fixed on four spinal branch daggers of bottom.
Preferably, the whole packaging portable box is made of light-weight, firm and drop-resistant plastic.
Preferably, the bottom layer electromagnetic relay fixing panel is fixed at the bottom of the packaging portable box through screws.
The system fault detection and display module comprises a rotating speed display module, an oil pressure display module, a fault indicator lamp module (indicator lamp group), an accelerator adjustment module, an engine stop control module and a DPF (Diesel Particulate Filter) regeneration control module;
the rotating speed display Module is connected with an Engine Control Module (ECM) through a data interface, and reads data detected by the rotating speed sensor by virtue of the ECM and displays the data on a digital tube in real time; the oil pressure display module is connected with an Engine Control Module (ECM) through a data interface, and reads data detected by the oil pressure sensor by virtue of the ECM and displays the data on a digital tube in real time; the fault indicator lamp module (a plurality of alarm indicator lamps) is electrically connected with the ECM through a data interface; the throttle adjusting module, the engine stopping control module and the DPF regeneration control module are electrically connected with the ECM through data interfaces;
the data interface is used for data communication transmission between the ECM and the system fault detection and display Module, and the rotating speed display Module reads data detected by a rotating speed sensor externally connected with an Engine Control Module (ECM) through the data interface and displays the rotating speed on a rotating speed display nixie tube in real time; the oil pressure display module reads data detected by a pressure sensor externally connected with the engine control module through a data interface and displays the rotating speed on an oil pressure display nixie tube in real time; the fault indicator lamp module comprises a plurality of alarm indicator lamps and is used for alarming different faults.
The throttle adjusting knob, the engine stop control button and the DPF regeneration control button control the corresponding functions of the engine by means of the connection line of the data interface. The accelerator adjusting module is an adjustable potentiometer, and an accelerator for actual vehicle driving is simulated by setting an accelerator adjusting knob so as to detect the accelerator pressure of the engine; the engine stop control module gives an ECM instruction to carry out emergency stop by pressing an engine stop control button on a panel; the DPF regeneration control module controls the DPF to perform manual regeneration by pressing a DPF regeneration control button on a panel to give an ECM command.
Preferably, the rotation speed display module and the oil pressure display module both use a Micro Control Unit (MCU) to display the data received by the data interface through a nixie tube.
As preferred, select for use the LED lamp as alarm indicator, every lamp corresponds different fault detection, and the interface that corresponds ECM can give the high level if the end that corresponds breaks down, and the pilot lamp is bright, can be timely warn corresponding problem, plays the warning effect.
Preferably, the throttle adjusting module uses nut rotation, the resistance value of a potentiometer is changed through the nut rotation, so that the circuit voltage is changed, and the throttle adjustment is controlled through the ECM.
The power supply control module comprises power supply positive and negative terminal posts, a starting terminal post, a starting button, a switch button and an electromagnetic relay; the power supply positive and negative terminals are externally connected with a storage battery for testing and supplying power; the starting terminal is used for being connected with a starting motor module of the engine, and the starting button is pressed to control the electromagnetic relay to start the motor to ignite the generator; the switch button is used for controlling the on-off state of the power supply.
The positive and negative terminals of the power supply are red-black rotary nut terminals. The starting terminal and the starting terminal of the starting button are red rotating nut terminals, the starting button is a self-reset button, the starting button can be reset by rebounding after being pressed by a loose hand, and one end of the starting button is connected with the positive pole of the power supply and the other end of the starting button is connected with the control end of the electromagnetic relay. The switch button is a self-locking button, can not be bounced to be ON when being pressed down, and is OFF when being pressed again and rebounded to be in the original position. The electromagnetic relay control end fixed on the bottom panel is connected with the starting button and the power supply cathode, the controlled end is connected with the power supply anode and the starting motor and is normally in a disconnected state, the power supply supplies power after the switch button is pressed, and then when the starting button is pressed, the electromagnetic relay controls the controlled end to be closed and the motor is started.
The invention has the beneficial effects that:
(1) the system fault detection and display module is characterized in that each designed module is displayed by an indicator light or a nixie tube, the system fault detection and display module is clear, the fault position can be clear at a glance, in addition, a universal data interface is adopted, the fault detection can be carried out on various engines at any time and any place, and the universality is high.
(2) After the positive and negative terminals of the power supply control module are connected with the storage battery, the on-off of the power supply can be controlled through the self-locking button, the starting button indirectly controls the ignition of the engine through the electromagnetic relay, the front and the back are isolated by utilizing electromagnetism, and the whole design is simple, clear, safe and reliable.
(3) The portable box of the detector has the advantages that the system detection panel, the electric wires and the electronic components are packaged in the box body, the internal electric wires and the electronic components can be well protected, safety and reliability are realized, the size of the box is small, and the portable box is portable and flexible.
Drawings
FIG. 1 is a block diagram of an engine fault detector of the present invention;
FIG. 2 is an exploded view of the engine fault detector of the present invention;
FIG. 3 is a system test panel of the present invention;
FIG. 4 is a block diagram of an engine fault detector system of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1 and 2, a portable engine fault detector comprises a system fault detection and display module, a power control module and a portable box body, wherein the power control module and the system fault detection and display module are fixedly arranged in the portable box body; the power supply control module is used for externally connecting a storage battery for testing power supply, starting a motor through a starting motor module connected with an engine for igniting the generator and controlling the on-off state of a power supply;
the portable box body comprises a packaging portable box 1, a system detection panel 2 and a bottom layer electromagnetic relay fixing panel 3; the detection panel, the electric wire and the electronic component of the system required for detection are all packaged in the portable packaging box 1, so that the portable packaging box is convenient to carry and test; the system detection panel is used for realizing the control function of the tester on the engine and the display function of feedback data of a built-in sensor of the engine; bottom electromagnetic relay fixed panel 3 is used for placing power control module's electromagnetic relay 4 and the wiring at detection panel back, and electromagnetic relay 4 is fixed on the bottom panel, and bottom panel four corners sets up four support columns and is used for fixed system to detect the panel in this embodiment, and the four corners of system detection panel is shaken the piece by 4 hexagon nuts and 4 springs and is fixed on four support columns of bottom.
The whole packaging portable box 1 is made of light-weight, firm and anti-falling special plastic and is used for protecting an internal system detection panel 2 and an electromagnetic relay fixing bottom plate 3; the packaging portable box is of a cubic structure with the length of 20-40 cm, the width of 10-30 cm and the height of 10-30 cm. The length of box design in this embodiment is 35cm, the width is 25cm, the height is 15cm, and the light portable of global design.
As shown in fig. 3, in this embodiment, a plurality of alarm indicator lamps 7, a rotation speed display nixie tube 5, an oil pressure display nixie tube 6, an accelerator adjustment knob 8, an engine stop control button 9, a DPF regeneration control button 10 of a system fault detection and display module are fixedly arranged on the surface of a system detection panel, and a power supply positive and negative terminal 11, a start terminal and start button 13, a switch button 14, and a data interface 12 of the power supply control module are further arranged; the connecting power line and the data line are matched with the system fault detection and display module to control the relevant functions of the engine and give corresponding alarms for various problems of the engine.
In the present embodiment, the data interface 12 is a 42-pin data interface.
In the embodiment, the bottom layer electromagnetic relay fixing panel is fixed by screws at the bottom of the box, the bottom layer panel is fixed at first, and then the bottom layer panel is extended by 10 cm-15 cm to be used as four support columns for fixing the top system detection panel; the bottom layer electromagnetic relay fixing panel is 0.5 cm-1 cm away from the bottom of the box.
The system fault detection and display module comprises a rotating speed display module, an oil pressure display module, a fault indicator lamp module, an accelerator adjustment module, an engine stopping control module and a DPF (Diesel Particulate Filter) regeneration control module;
the system comprises a rotating speed display module, an oil pressure display module, a fault indicator lamp module, an accelerator adjusting module, an engine stopping control module and a DPF (Diesel Particulate Filter) regeneration control module which are all common modules; the rotating speed display module and the oil pressure display module display received data on the nixie tube, so that a processor is needed for data processing and data display, and the 8051 series processor is used in the embodiment due to the low cost while the use requirement is met.
The rotating speed display module, the oil pressure display module, the fault indicator lamp module, the accelerator adjusting module, the engine stopping control module and the DPF (Diesel Particulate Filter) regeneration control module are all connected with the engine control module ECM through a data interface 12;
as shown in fig. 4, the speed display module reads data detected by a speed sensor externally connected to an Engine Control Module (ECM) through a data interface and displays the speed on a speed display nixie tube 5 in real time; the oil pressure display module reads data detected by a pressure sensor externally connected with the engine control module through a data interface and displays the rotating speed on the oil pressure display nixie tube 6 in real time; in the embodiment, the fault indicator lamp module (a plurality of alarm indicator lamps 7) comprises a fault alarm lamp, an engine oil pressure alarm lamp, a preheating indicator lamp, a supercharging temperature alarm lamp, an overhigh water temperature alarm lamp, an overspeed alarm lamp, a fuel oil temperature alarm lamp, a fuel oil pressure alarm lamp, a DPF alarm lamp and a DPF regeneration alarm lamp, and each indicator lamp can warn corresponding problems in time through a data interface; the accelerator adjusting module simulates an accelerator driven by an actual vehicle by adjusting an accelerator adjusting knob 8 on the panel and detects the accelerator pressure of the engine; the engine stop control module gives an ECM instruction to perform emergency stop by pressing an engine stop control button 9 on a panel; the DPF regeneration control module controls the DPF to be manually regenerated by pressing a DPF regeneration control button 10 on a panel to give an ECM instruction; the data interface 12 is used for data communication transmission between the engine and the tester, the ECM related parameters of the engine can be transmitted to the tester through the connection line of the data interface and displayed on a nixie tube on a test panel, and meanwhile, the related control keys on the tester can control the related functions of the engine through the connection line of the data interface.
When the tester works, the positive and negative wiring terminals of a power supply of the tester are connected to the positive and negative ends of the storage battery for power supply connection; connecting the starting binding post and the negative binding post to a starting motor of an engine to carry out ignition starting connection; and a 42-pin data interface of the detector and a data interface of the engine are connected by a data line for data transmission.
After the circuit connection finishes, press the shift knob, the power supply switches on, press the shift knob this moment and make electromagnetic relay closed, the starter motor of engine ignites and starts, then the engine begins work, later multiple sensor on the engine carries out data monitoring, the ECM of engine collects the data of each sensor and exports for external display device through the data line, the detector of connecting the engine this moment will make the reflection in real time according to the data of receiving, some parameters are after exceeding the threshold value of settlement, corresponding pilot lamp can the light warning, the rotational speed value and the pressure value of engine then can be through external charactron with value real-time display.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (8)
1. A portable engine fault detector comprises a system fault detection and display module, a power supply control module and a portable box body; the method is characterized in that: the power supply control module and the system fault detection and display module are fixedly arranged in the portable box body; the power supply control module is used for externally connecting a storage battery for testing power supply, starting a motor through a starting motor module connected with an engine for igniting the generator and controlling the on-off state of a power supply; the system fault detection and display module is used for realizing a control detection function of an engine control module ECM and a display function of feedback data of an engine built-in sensor;
the portable box body structure comprises a packaging portable box, a system detection panel and a bottom layer electromagnetic relay fixing panel;
the system fault detection and display module comprises a rotating speed display module, an oil pressure display module, a fault indicator lamp module, an accelerator adjustment module, an engine stop control module and a Diesel Particulate Filter (DPF) regeneration control module, wherein the fault indicator lamp module comprises a plurality of alarm indicator lamps;
the power supply control module comprises power supply positive and negative terminal posts, a starting terminal post, a starting button, a switch button and an electromagnetic relay fixed on the bottom layer panel;
the packaging portable box is used for packaging the system detection panel, the electric wire and the electronic component into a box body; the system detection panel is used for fixing a plurality of alarm indicator lamps, a rotating speed display nixie tube, an oil pressure display nixie tube, an accelerator adjusting knob, an engine stop control button and a DPF regeneration control button of the system fault detection and display module, and fixing a power supply positive and negative terminal, a starting button, a switch button and a data interface of the power supply control module; the bottom layer electromagnetic relay fixing panel is used for placing the electromagnetic relays of the power supply control module and the wiring among the modules;
the rotating speed display module is connected with an Engine Control Module (ECM) through a data interface, and reads data detected by the rotating speed sensor by virtue of the ECM and displays the data on a digital tube in real time; the oil pressure display module is connected with an Engine Control Module (ECM) through a data interface, and reads data detected by the oil pressure sensor by virtue of the ECM and displays the data on a digital tube in real time; the fault indicator lamp module is connected with the ECM through a data interface and used for alarming different faults; the throttle adjusting module, the engine stopping control module and the DPF regeneration control module are connected with the ECM through data interfaces;
the data interface is used for data communication transmission between the ECM and the system fault detection and display module, and the rotating speed display module reads data detected by a rotating speed sensor externally connected with the engine control module ECM through the data interface and displays the rotating speed on a rotating speed display nixie tube in real time; the oil pressure display module reads data detected by a pressure sensor externally connected with the engine control module through a data interface and displays the rotating speed on an oil pressure display nixie tube in real time;
the accelerator adjusting knob, the engine stop control button and the DPF regeneration control button are matched with the accelerator adjusting module, the engine stop control module and the DPF regeneration control module by virtue of a connecting line of a data interface to control the corresponding functions of the engine; the throttle adjusting module detects the throttle pressure of the engine; the engine stop control module gives an ECM instruction to carry out emergency stop by pressing an engine stop control button on a panel; the DPF regeneration control module controls the DPF to perform manual regeneration by pressing a DPF regeneration control button on a panel to give an ECM command.
2. The portable engine fault detector of claim 1, wherein: the rotating speed display module and the oil pressure display module are both selected from a micro control unit MCU to display the data received by the data interface through a nixie tube.
3. The portable engine fault detector of claim 1, wherein: the fault indicator lamp module adopts an LED lamp as an alarm indicator lamp.
4. The portable engine fault detector of claim 1, wherein: the throttle adjusting module is an adjustable potentiometer, and the resistance value of the potentiometer is adjusted by rotating a nut.
5. The portable engine fault detector of claim 1, wherein: the power supply positive and negative terminals of the power supply control module are used for being externally connected with a storage battery to carry out test power supply; the starting terminal is used for being connected with a starting motor module of the engine, and the starting button is pressed to control the electromagnetic relay to start the motor to ignite the generator; the switch button is used for controlling the on-off state of the power supply.
6. The portable engine fault detector of claim 1, wherein: four support columns are arranged at four corners of the bottom layer panel and used for fixing a system detection panel; four corners of the system detection panel are fixed on four support columns at the bottom by 4 hexagonal nuts and 4 spring vibrating sheets.
7. The portable engine fault detector of claim 1, wherein: the packaging portable box body of the portable box body structure is made of light-weight, firm and anti-falling plastic.
8. The portable engine fault detector of claim 1, wherein: and the electromagnetic relay of the bottom layer electromagnetic relay fixing panel is fixed on the panel through screws and nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210178057.5A CN114487829A (en) | 2022-02-25 | 2022-02-25 | Portable engine fault detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210178057.5A CN114487829A (en) | 2022-02-25 | 2022-02-25 | Portable engine fault detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114487829A true CN114487829A (en) | 2022-05-13 |
Family
ID=81484744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210178057.5A Pending CN114487829A (en) | 2022-02-25 | 2022-02-25 | Portable engine fault detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114487829A (en) |
-
2022
- 2022-02-25 CN CN202210178057.5A patent/CN114487829A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201159694Y (en) | Function testing equipment of automatic air conditioner controller | |
| CN101515176B (en) | Detection device and detection method for electric control system | |
| CN103293070B (en) | Wire jacket tearing detection device | |
| CN202197131U (en) | Self-diagnosis intelligent electric automobile charging pile circuit | |
| CN201853418U (en) | Operation and experiment table for whole-automobile electronic simulation control system | |
| CN201145987Y (en) | Car engine test stand | |
| CN217060432U (en) | Portable engine fault detector | |
| CN201266321Y (en) | Detection device for electric control system | |
| CN114487829A (en) | Portable engine fault detector | |
| CN203338658U (en) | Simulated training device for diesel generating set | |
| CN201449687U (en) | Basic circuit teaching experimental box of automobile body electrical system | |
| CN217587525U (en) | Multifunctional portable engine fault detector | |
| CN2786721Y (en) | Anti-disassembly detecting controller | |
| CN204463379U (en) | A kind of intelligent vehicle natural gas leaking phonetic alarm device | |
| CN208548065U (en) | Power battery management system practical traning platform | |
| CN2751291Y (en) | Natural gas vehicle leakage monitoring device | |
| CN203275214U (en) | Tearing detection device of wire sheath | |
| CN201749610U (en) | Vehicle maintenance skill training and identifying equipment board | |
| CN114415022A (en) | Multifunctional portable engine fault detector | |
| CN110456770B (en) | Pulse fault simulation device for circuit of automobile electric control unit | |
| CN205959490U (en) | Experimental teaching instrument equipment for electrical system of excavator | |
| CN2714812Y (en) | Automatic flameout device for engine | |
| CN204010385U (en) | A kind of parking computer antitheft systematic teaching actual training device | |
| CN103353755A (en) | Automatic detection device for electronic control module of engine of end-of-life automobile and detection method | |
| CN221446715U (en) | Teaching device for electric control principle of pure electric automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231020 Address after: No. 501, 2nd Street, Baiyang Street, Qiantang District, Hangzhou City, Zhejiang Province, 310000, 6-1113 Applicant after: Zhejiang Jialiang Zhidong Technology Co.,Ltd. Address before: 310018 No. 2 street, Xiasha Higher Education Zone, Hangzhou, Zhejiang Applicant before: HANGZHOU DIANZI University |
|
| TA01 | Transfer of patent application right |