CN106448317B - Automobile teaching fault simulation external circuit and fault setting platform - Google Patents
Automobile teaching fault simulation external circuit and fault setting platform Download PDFInfo
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- CN106448317B CN106448317B CN201610798001.4A CN201610798001A CN106448317B CN 106448317 B CN106448317 B CN 106448317B CN 201610798001 A CN201610798001 A CN 201610798001A CN 106448317 B CN106448317 B CN 106448317B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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Abstract
The automobile teaching fault setting platform transfers a current limiting circuit and a detection terminal which are arranged on an internal circuit board in the prior art to an external circuit, provides a universal external circuit bare chip, welds different elements according to different types of faults to be simulated to form four fault simulation sheets, can simulate the conditions of poor circuit contact such as circuit access, open circuit, abnormal potential and the like or semi-damage of devices, and can also control the on-off of the circuit by using a wireless control technology; the external circuit is convenient to use, if damaged, a new chip can be directly replaced, and the external circuit is very convenient to maintain; the fault setting platform of the invention is improved from the original electric connection mode of 'fuse-fuse holder-built-in circuit board-connecting terminal-engine base' to the connection mode of 'external circuit-external circuit connecting holder (fuse holder) -engine base', and the main functional elements are concentrated in the external circuit, so that the connecting parts and connecting lines are reduced, and the structure of the fault setting machine is simplified.
Description
Technical Field
The invention relates to an automobile maintenance teaching device, in particular to an automobile teaching fault simulation external circuit and a fault setting platform.
Background
Please refer to fig. 1, which shows the working principle of an ECU (electronic control unit) of a vehicle. Various sensors and actuators are arranged on the automobile engine and are electrically connected with the ECU through the ECU main wire harness. The ECU performs operation processing on the signals and outputs control signals to actuators on the engine, such as an oil injector, an idle speed control valve, a relay and the like, so as to control the operation of the engine.
Please refer to fig. 2, which is a working schematic diagram of a fault setting platform for automobile teaching in the prior art, the fault setting platform is connected between an engine sensor/actuator and an ECU, and built-in circuit modules a and B thereof change an electric signal received by the ECU from the sensor and an electric signal output by the ECU to the actuator, so as to simulate an engine fault without damaging a circuit of the automobile itself, and students judge a fault cause of the engine through different fault expressions generated by the engine, and learn engine maintenance knowledge. Specifically, the automobile teaching fault setting platform in the prior art comprises a base and a built-in circuit module. Please refer to fig. 3, which is a schematic structural diagram of the internal circuit module, the internal circuit module 120 includes a connection terminal 1201, an internal circuit board 1202, a fuse holder 1203, a fuse 1204 and a detection terminal 1205, and the internal circuit module 120 is mounted on the base and electrically connected to the sensor/actuator of the engine and the ECU through the base, respectively. The connection terminal 1201 includes an output port and an input port, the output port and the input port are electrically connected to two ports of the fuse holder 1203, the fuse 1204 is inserted into the fuse holder 1203, the built-in circuit board 1202 is further provided with a current limiting circuit, and the detection terminal 1205 is fixed on the built-in circuit board 1202 by welding and connected in series with the connection terminal 1201 through the current limiting circuit. Taking a sensor as an example, an electric signal of the sensor is transmitted to a base of the fault setting platform through the main harness of the ECU, then is input into the built-in circuit board through an input port in the connecting terminal, and then is input into the fuse through the fuse holder, and the electric signal is output to an output port of the connecting terminal through the built-in circuit board after passing through the fuse, and then is output to the ECU through the base and the main harness of the fault setting platform in sequence. The teacher simulates different working states of the sensor by setting the on-off state of the fuse, when the fuse works normally, the signal of the sensor is smoothly transmitted to the ECU, and when the fuse is cut off or fused by the teacher, the condition that a sensor device is damaged or a sensor line is damaged can be simulated, so that the engine generates corresponding fault expression. The measuring terminal is connected in series to the circuit through the current limiting circuit, a universal meter can be used for contacting the measuring terminal, or the measuring terminal is connected with an oscilloscope, so that electric signals of all circuits can be obtained, and teaching is facilitated.
However, the fault setting platform in the prior art has the following defects:
1. the fuse is required to be manually cut or fused to simulate the circuit breaking condition, and under the condition of a large number of circuits, each fuse is operated one by one, so that the circuit breaking condition is very complicated and inconvenient to use;
2. only two conditions of passage and disconnection can be simulated, and the condition of poor line contact or semi-damage of a sensor/actuator cannot be simulated;
3. the current limiting circuit and the connecting terminal are arranged on the built-in circuit board, the contact area of the connecting terminal of the built-in circuit board is insufficient, the built-in circuit board is easy to melt due to overheating, the whole built-in circuit module needs to be disassembled after the built-in circuit module is damaged, the whole built-in circuit module needs to be replaced, the replacement cost is high, and the maintenance is very inconvenient;
4. the built-in circuit module has a complex structure, is complex to install and disassemble and has low use stability.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automobile teaching fault simulation external circuit and a fault setting platform which can simulate three faults, have simple structure and are convenient to maintain.
The technical scheme adopted by the invention is as follows:
an external circuit for simulating automobile teaching faults comprises an access end, an on-off module and a measuring terminal module; the access end comprises a first access port and a second access port, the first access port can be electrically connected with an automobile ECU, and the second access port can be electrically connected with a sensor or an actuator on an automobile; the on-off circuit module comprises two on-off circuit ports which are respectively and electrically connected with a first access port and a second access port of the access end; the measuring terminal module is electrically connected with the first access port or the second access port and outputs an electric signal.
Furthermore, the intelligent potentiometer further comprises a potentiometer module which comprises two potentiometer ports, and the two potentiometer ports are respectively and electrically connected with the first access port and the second access port of the access end.
Furthermore, the wireless connection module comprises two wireless connection ports, and the two wireless connection ports are respectively electrically connected with the first access port and the second access port of the access end.
Furthermore, the external fault simulation circuit for automobile teaching is specifically an open circuit simulation external circuit, the two open/close circuit ports are electrically insulated, and no element is arranged between the two open/close circuit ports.
Further, the external circuit for simulating the automobile teaching fault is specifically an external circuit for simulating a path, and the two path-on/off ports are directly electrically connected or electrically connected through a fuse.
Further, the external circuit for simulating the automobile teaching fault is specifically a potentiometer simulation external circuit, and the two potentiometer ports are electrically connected through a potentiometer.
Further, the external circuit of automobile teaching fault simulation is specifically a wireless control external circuit, and the two wireless connection ports can be electrically connected with the wireless control module.
Furthermore, the measuring terminal module comprises a current-limiting resistor and a measuring terminal, and the first access port or the second access port, the current-limiting resistor and the measuring terminal are connected in series in sequence.
The invention also provides an automobile teaching fault setting platform which comprises a fault setting machine and an automobile teaching fault simulation external circuit according to any one of the above; the fault setting machine comprises a machine base and external circuit connecting bases, wherein each external circuit for simulating the automobile teaching fault is fixed on each external circuit connecting base, the external circuit connecting bases are fixed on the machine base, and the external circuit for simulating the automobile teaching fault is electrically connected with a sensor or an actuator on an automobile and an automobile ECU (electronic control unit) through the external circuit connecting bases and the machine base respectively.
Further, the wireless control module is further included and comprises a communication sub-module and a relay; the external circuit is the wireless control external circuit, and the relay is respectively and electrically connected with the two wireless connection ports of the wireless connection module; and the communication sub-module is electrically connected with the relay and controls the relay to be switched on or switched off according to the received wireless control signal.
The automobile teaching fault setting platform transfers a current limiting circuit and a detection terminal which are arranged on an internal circuit board in the prior art to an external circuit, provides a universal external circuit bare chip, welds different elements according to different types of faults to be simulated to form four fault simulation sheets, can simulate the conditions of poor circuit contact such as circuit access, open circuit, abnormal potential and the like or semi-damage of devices, and can also control the on-off of the circuit by using a wireless control technology; the manufacturer can manufacture the external circuit bare chip or four fault simulation pieces, a user can purchase the four fault simulation pieces for direct use, or can purchase the external circuit bare chip first and then weld different circuit elements according to actual needs, so that the flexible teaching purpose is realized; the external circuit is convenient to use, and the defects that the whole internal circuit board needs to be disassembled and replaced after being damaged due to overheating, melting and the like, the replacement cost is high, and the maintenance is inconvenient in the prior art are overcome; the fault setting platform provided by the invention is improved from the original electric connection mode of 'fuse-fuse holder-built-in circuit board-connecting terminal-base' to the connection mode of 'external circuit-external circuit connecting holder (fuse holder) -base', and the main functional elements are concentrated in the external circuit, so that the connecting parts and connecting lines are reduced, the structure of the fault setting machine is simplified, the production process is simplified, the production cost is effectively reduced, and the working stability of the product is improved.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the operation of an automotive ECU (electronic control Unit);
FIG. 2 is a schematic diagram of the operation of a prior art vehicle teaching fault setup platform;
FIG. 3 is a schematic diagram of a built-in circuit module of a prior art vehicle teaching fault setting platform;
FIG. 4 is a schematic diagram of the operation of the vehicle teaching fault setup platform of the present invention;
FIG. 5 is a schematic structural diagram of a vehicle teaching fault setup platform of the present invention;
FIG. 6 is a schematic structural diagram of the external circuit and the external circuit connection socket of the present invention;
FIG. 7 is a circuit diagram of an external circuit die of the present invention;
FIG. 8 is a circuit diagram of the circuit break simulating external circuit piece of the present invention;
FIG. 9 is a circuit diagram of the via emulation external die of the present invention;
FIG. 10 is a circuit diagram of the potentiometer according to the present invention simulating an external circuit chip;
fig. 11 is a circuit diagram of the wireless control external circuit chip of the present invention.
Detailed Description
The invention relates to an automobile teaching fault setting platform (hereinafter referred to as fault setting platform), which comprises a plurality of external circuits 20 and a fault setting machine for inserting the external circuits 20, wherein the fault setting machine comprises a machine base, an external circuit connecting base 12 and a fault setting platform main wiring harness, the external circuits 20 are installed on the external circuit connecting base 12, the external circuit connecting base 12 is installed on the machine base, and the fault setting platform main wiring harness is connected with an automobile ECU.
Please refer to fig. 4, which is a schematic diagram of the operation of the platform for setting fault in automobile teaching according to the present invention. The fault setting platform is arranged between an automobile ECU and a sensor or an actuator of an automobile engine, an external circuit 20 (taking external circuits A and B as examples in fig. 4) on the fault setting platform is electrically connected with the outside through an external circuit connecting seat 12 and a base, one end of the external circuit 20 is electrically connected with the automobile ECU through a fault setting platform main wire harness, and the other end of the external circuit is electrically connected with the sensor or the actuator of the automobile engine through the ECU main wire harness.
Please refer to fig. 5, which is a schematic structural diagram of the platform for setting fault in automobile teaching according to the present invention. The fault setting platform comprises a plurality of external circuits 20 and a fault setting machine for inserting the external circuits 20, wherein the fault setting machine comprises a machine base, an external circuit connecting base 12, a fault setting platform main wire harness (not shown in the figure) and a wireless control module (not shown in the figure). The engine base specifically comprises an upper cover 111, a panel 113, a fixing plate 114 and a lower cover 112 which are stacked in parallel from top to bottom, wherein the upper cover 111 and the lower cover 112 are rectangular hollow shells, and one sides of the upper cover 111 and the lower cover are hinged with each other to form a structure capable of being opened and closed. The lower cover 112 is provided with a fault setting platform interface terminal, which can be connected with a main harness of an automobile ECU, the main harness of the ECU is connected with a sensor or an actuator on an automobile engine, and the external circuit connecting seat 12 is electrically connected with the interface terminal through a line in the fault setting machine, so that the external circuit 20 is electrically connected with the sensor or the actuator on the automobile. The fixing plate 114 is fixed on the lower cover 112, and a plurality of fixing holes are formed in the fixing plate 114, each fixing hole being used for mounting one external circuit connecting socket 12, and the external circuit 20 is inserted into the external circuit connecting socket 12. The panel 113 can be covered on the fixing plate 114, through holes corresponding to the fixing holes one by one are arranged on the panel 113, when the external circuit 20 needs to be installed, the panel 113 can be installed by being lifted, after the installation, the panel 113 is covered on the fixing plate 114, only the measuring terminal 231 of the external circuit 20 is exposed out of the panel 113, and a student can switch on the measuring terminal 231 for measurement by using a universal meter or an oscilloscope without exposing other structures of the external circuit 20. The fault setting platform main harness is connected to the lower cover 112, the fault setting platform main harness is inserted into an interface terminal of the automobile ECU and electrically connected with the ECU, and the external circuit connecting base 12 is electrically connected with the fault setting platform main harness through a line in the fault setting machine, so that the external circuit 20 is electrically connected with the automobile ECU. Each external circuit 20 corresponds to an independent line, and the connection mode of the line is specifically as follows: from the sensor or the executor of engine, through ECU main pencil be connected to the trouble and set up the platform to be connected to external circuit connecting seat 12 through the circuit on the frame, be connected to external circuit 20 again, similarly, external circuit 20 is connected to the circuit on the frame through external circuit connecting seat 12, and the rethread sets up the platform main pencil and is connected with car ECU. The wireless control module is fixed in the fault setting machine, is electrically connected with the external circuit connecting seat 12 through a circuit, is electrically connected with the external circuit 20 and is used for controlling the external circuit 20 in a wireless mode.
Please refer to fig. 6, which is a schematic structural diagram of the external circuit and the external circuit connection socket according to the present invention. The external circuit connecting seat 12 is a fuse seat that is generally used in an automobile for fixing a fuse, and may be other connecting seats. The external circuit 20 is modified from a conventional rupture disc for an automobile and has a similar shape to the rupture disc. Specifically, the external circuit connecting seat 12 in this embodiment includes a plastic housing and a metal elastic sheet mainly fixed inside the plastic housing, two ear portions are further disposed on two sides of the plastic housing for fixing the plastic housing on the fixing plate with screws, the external circuit 20 includes an incoming end 21, the incoming end 21 is a metal sheet, the metal sheet of the external circuit 20 is inserted into the metal elastic sheet of the external circuit connecting seat 12 to form stable electrical connection, and the contact area between the metal sheet and the metal elastic sheet is large, and when the current is constant, the heat generation amount is small.
The external circuit 20 is divided into a bare chip on which various ports for bonding components and lines for electrically connecting the ports to each other are provided, but no component is bonded (except for the measurement terminal module 23), and four kinds of failure simulation chips on which different circuit components are bonded respectively corresponding to the failure conditions to be simulated. When the circuit is used, as long as the fault simulation sheet corresponding to the fault condition needing to be set is inserted into the external circuit connecting seat 12 of the corresponding circuit, the fault of the sensor/actuator on the corresponding circuit can be simulated.
Please refer to fig. 7, which is a circuit diagram of an external circuit die according to the present invention. The external circuit bare chip comprises an access end 21, an on-off circuit module 22, a measuring terminal module 23, a potentiometer module 24 and a wireless connection module 25. The access end 21 is electrically connected with the outside through a line on the fault setting machine, the access end 21 specifically comprises a first access port 211 and a second access port 212, the first access port 211 is electrically connected with an automobile ECU, and the second access port 212 can be electrically connected with a sensor or an actuator on an automobile. The open/close circuit module 22 includes two electrically isolated open/close circuit ports, which are electrically connected to the first access port 211 and the second access port 212 of the access terminal 21, respectively. Further, the on-off sub-port includes four pairs of on-off sub-ports 221, which can be used for parallel connection of at most four devices, and in other manners, two, three, five or more pairs of on-off sub-ports 221 may be provided. The measurement terminal module 23 is electrically connected to the first access port 211 and further electrically connected to the vehicle ECU. The measurement terminal module 23 specifically includes a current-limiting resistor and a measurement terminal 231, the first access port 211, the current-limiting resistor and the measurement terminal 231 are connected in series in sequence, and the current-limiting circuit is used for limiting an excessive current to protect the circuit. The measurement terminal 231 is specifically a copper column, and may be other metal terminals, and the electrical signal received or sent by the ECU may be measured by a measurement device such as a multimeter or an oscilloscope. The current limiting resistor and the measuring terminal 231 can be directly welded on the bare chip or not welded yet, and are welded when four fault simulation sheets are manufactured. In other embodiments, the engine may further include a second measurement terminal module 23 (not shown in fig. 7), which includes a second current-limiting resistor and a second measurement terminal, and the second access port 212, the second current-limiting resistor and the second measurement terminal are connected in series in sequence, so that the second measurement terminal is electrically connected to the engine sensor or the actuator, and the second measurement terminal may measure the electrical signal transmitted by the sensor or received by the actuator. The potentiometer module 24 includes two potentiometer ports 241 electrically insulated from each other, and the two potentiometer ports 241 are electrically connected to the first access port 211 and the second access port 212 of the access terminal 21, respectively. The wireless connection module 25 includes two wireless connection ports 251 electrically insulated from each other, and the two wireless connection ports 251 are electrically connected to the first access port 211 and the second access port 212 of the access terminal 21, respectively.
The four fault simulation pieces are respectively a broken circuit simulation external circuit piece, a path simulation external circuit piece, a potentiometer simulation external circuit piece and a wireless control external circuit piece. Please refer to fig. 8, which is a circuit diagram of the external circuit board for simulating open circuit according to the present invention. The open circuit analog external circuit piece is basically the same as the external circuit bare chip, no element is arranged on the open circuit module 22, the potentiometer module 24 and the wireless connection module 25, two potentiometer ports 241 are electrically insulated, two wireless connection ports 251 are electrically insulated, and two open circuit ports are electrically insulated. In another embodiment, a switching element may be provided between the two open/close ports and set in an off state. When the broken circuit simulation external circuit piece is inserted into the external circuit connecting seat 12, the electric signals transmitted to the ECU or the ECU to the actuator by the sensor can be blocked, and the condition that the circuit or the sensor/actuator is damaged can be simulated.
Please refer to fig. 9, which is a circuit diagram of the via emulation external chip according to the present invention. The potentiometer module 24 and the wireless connection module 25 of the path simulation external circuit piece are not provided with any element, and two on-off ports on the on-off module 22 are electrically connected through a fuse or a switch element or are directly connected through welding points, so that a path is formed between the two on-off ports. The channel simulates the condition that an external circuit sheet is inserted into the external circuit connecting seat 12, the sensor transmits an electric signal to the ECU or the ECU transmits the electric signal to the actuator to normally transmit, and the circuit or the sensor/actuator normally operates. In this embodiment, use the paster fuse to connect two break-make way ports, misoperation appears when its effect prevents that the student from measuring through measuring terminal, for example with the universal meter when measuring voltage with the gear dial the wrong for the electric current shelves, can lead to the electric current too big in the circuit, the automatic fusing of fuse this moment prevents to cause the damage to ECU, trouble setting platform and engine. In this embodiment, the two open/close ports include four pairs of open/close sub-ports 221, and 1 to 4 fuses may be connected in parallel according to the magnitude of the current of the line in which the external circuit 20 is located. In other embodiments, the fuse may be replaced with other current limiting devices.
Please refer to fig. 10, which is a circuit diagram of the potentiometer according to the present invention simulating an external circuit chip. No element is arranged on the on-off module 22 and the wireless connection module 25 of the potentiometer analog external circuit piece, and a potentiometer current-limiting resistor and a potentiometer are sequentially connected in series between two potentiometer ports 241 on the potentiometer module 24. The potentiometer is inserted into the external circuit connecting seat 12 to simulate the condition of poor contact of a circuit or semi-damage of a sensor/actuator by adjusting the resistance value of the potentiometer, so that the potential of an electric signal transmitted to the ECU or the ECU to the actuator by the sensor can be changed.
Please refer to fig. 11, which is a circuit diagram of the external circuit chip for wireless control according to the present invention. The on-off module 22 and the potentiometer module 24 of the wireless control external circuit chip are not provided with any element, and two wireless connection ports 251 of the wireless connection module 25 are respectively and electrically connected with a wireless control module fixed on the fault setting machine. The wireless control module specifically comprises a relay and a communication submodule, the relay is respectively electrically connected with the two wireless connection ports 251 of the wireless connection module 25, the communication submodule is electrically connected with the relay, and the relay is controlled to be switched on or switched off according to the received wireless control signal, so that the two wireless connection ports 251 are switched on or switched off, and the condition of switching on or switching off is simulated. Specifically, the wireless control external circuit piece is inserted into the external circuit connecting seat 12, then the wireless network card or the wireless router of the computer is connected with the wireless control module through a WiFi signal, the WiFi of a mobile terminal such as a mobile phone can also be connected with the wireless control module, the control signal which is switched on or off is wirelessly transmitted to the communication sub-module, the communication sub-module controls the on or off of the relay, the same effect as that of simulating the external circuit piece through a channel and that of simulating the external circuit piece through a circuit is achieved, the time for manually setting the external circuit 20 can be reduced, and the teaching efficiency is further improved.
When the fault setting platform is used, firstly, the external circuit is installed in a fault setting machine, and is firstly set to be in a path connection mode, so that an engine can normally work and no fault is generated; secondly, the cathode battery post clamp of the storage battery of the automobile is disassembled to disconnect the cathode of the power supply, and if the ECU main wire harness is directly pulled out, the ECU is easily burnt out; then connecting a fault setting platform, pulling out an ECU main wiring harness from an interface terminal of the ECU, connecting the ECU main wiring harness to the interface terminal of the fault setting platform, and then inserting the ECU main wiring harness into the interface terminal of the ECU; after the connection check is correct, the battery column clamp is mounted on the negative pole of the storage battery, the engine is started, and after the operation is abnormal, the battery column clamp is successfully mounted, if an abnormal problem occurs, the negative pole of the battery is disconnected again, and the setting of the line connection and the fault setting platform is checked.
The automobile teaching fault setting platform transfers a current limiting circuit and a detection terminal which are arranged on an internal circuit board in the prior art to an external circuit, provides a universal external circuit bare chip, welds different elements according to different types of faults to be simulated to form four fault simulation sheets, can simulate the conditions of poor circuit contact such as circuit access, open circuit, abnormal potential and the like or semi-damage of devices, and can also control the on-off of the circuit by using a wireless control technology; the manufacturer can manufacture an external circuit bare chip or four fault simulation pieces, a user can purchase the four fault simulation pieces for direct use, or purchase the external circuit bare chip, and then weld different circuit elements according to actual needs to realize a flexible teaching purpose; the external circuit is convenient to use, and the defects that in the prior art, the contact area of the connecting terminal of the internal circuit board is insufficient, the whole circuit needs to be disassembled and replaced after damage such as overheating and melting occurs, the replacement cost is high, and the maintenance is inconvenient are overcome; the fault setting platform provided by the invention is improved from the original electric connection mode of 'fuse-fuse holder-built-in circuit board-connecting terminal-base' to the connection mode of 'external circuit-external circuit connecting holder (fuse holder) -base', and the main functional elements are concentrated in the external circuit, so that the connecting parts and connecting lines are reduced, the structure of the fault setting machine is simplified, the production process is simplified, the production cost is effectively reduced, and the working stability of the product is improved.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a car teaching trouble sets up platform which characterized in that: the automobile fault setting device comprises a fault setting machine and an automobile teaching fault simulation external circuit, wherein the fault setting machine comprises a base, a plurality of external circuit connecting seats and a fault setting platform main wiring harness, the base is provided with a fault setting platform interface terminal, and the fault setting platform interface terminal is connected with an automobile ECU main wiring harness; the external circuit connecting seat is electrically connected with the fault setting platform interface terminal through a circuit in the fault setting machine, and the external circuit connecting seat is electrically connected with the fault setting platform main wire harness through a circuit in the fault setting machine; the fault setting platform main wiring harness is electrically connected with an interface terminal of an automobile ECU (electronic control unit);
the automobile teaching fault simulation external circuit comprises an access end, a circuit switching module and a measuring terminal module; the access end comprises a first access port and a second access port, the first access port is inserted in the external circuit connecting seat to be electrically connected with an automobile ECU, and the second access port is inserted in the external circuit connecting seat to be electrically connected with a sensor or an actuator on an automobile; the on-off circuit module comprises two on-off circuit ports which are respectively and electrically connected with a first access port and a second access port of the access end; the measuring terminal module is electrically connected with the first access port or the second access port and outputs an electric signal.
2. The vehicle teaching fault setting platform of claim 1, wherein: the external circuit for simulating the automobile teaching fault further comprises a potentiometer module, wherein the potentiometer module comprises two potentiometer ports, and the two potentiometer ports are respectively electrically connected with the first access port and the second access port of the access end.
3. The vehicle teaching fault setting platform of claim 1, wherein: the automobile teaching fault simulation external circuit further comprises a wireless connection module which comprises two wireless connection ports, wherein the two wireless connection ports are respectively electrically connected with the first access port and the second access port of the access end.
4. The vehicle teaching fault setting platform of claim 1, wherein: the automobile teaching fault simulation external circuit is specifically an open circuit simulation external circuit, the two open/close circuit ports are electrically insulated, and no element is arranged between the two open/close circuit ports.
5. The vehicle teaching fault setting platform of claim 1, wherein: the automobile teaching fault simulation external circuit is specifically a path simulation external circuit, and the two path-on/off ports are directly electrically connected or electrically connected through a fuse.
6. The vehicle teaching fault setting platform of claim 2, wherein: the automobile teaching fault simulation external circuit is specifically a potentiometer simulation external circuit, and the two potentiometer ports are electrically connected through a potentiometer.
7. The vehicle teaching fault setting platform of claim 3, wherein: the automobile teaching fault simulation external circuit is specifically a wireless control external circuit, and the two wireless connection ports can be electrically connected with the wireless control module.
8. The automobile teaching fault setting platform of any one of claims 1 to 7, wherein: the measuring terminal module comprises a current-limiting resistor and a measuring terminal, and the first access port or the second access port, the current-limiting resistor and the measuring terminal are sequentially connected in series.
9. The automobile teaching fault setting platform according to any one of claims 3 and 7, characterized in that: the wireless control module comprises a communication submodule and a relay; the relay is electrically connected with the two wireless connection ports of the wireless connection module respectively; and the communication sub-module is electrically connected with the relay and controls the relay to be switched on or switched off according to the received wireless control signal.
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| CN201610798001.4A CN106448317B (en) | 2016-08-31 | 2016-08-31 | Automobile teaching fault simulation external circuit and fault setting platform |
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| CN201610798001.4A CN106448317B (en) | 2016-08-31 | 2016-08-31 | Automobile teaching fault simulation external circuit and fault setting platform |
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| CN107358863A (en) * | 2017-09-15 | 2017-11-17 | 贵阳学院 | A kind of dynamic teaching platform for automobile electric control system sensor teaching |
| CN110134103B (en) * | 2019-02-01 | 2021-03-23 | 上海迪璞电子科技股份有限公司 | Circuit control method, device and system |
| CN112394273B (en) * | 2019-08-12 | 2023-03-24 | 芯恩（青岛）集成电路有限公司 | Circuit inspection system and method |
| CN110634368B (en) * | 2019-09-14 | 2021-09-24 | 国网福建省电力有限公司检修分公司 | Universal defect eliminating simulation device for defect eliminating simulation of electrical control loop of power transformation equipment |
| CN111477053A (en) * | 2020-03-19 | 2020-07-31 | 南京交通职业技术学院 | Audi A4L engine fault setting system based on WiFi |
| CN111524430A (en) * | 2020-04-07 | 2020-08-11 | 南京交通职业技术学院 | Engine fault simulation system based on mobile phone Bluetooth |
| CN113268033A (en) * | 2021-04-29 | 2021-08-17 | 重庆广播电视大学重庆工商职业学院 | Mobile phone controlled automobile fault simulation and diagnosis device |
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