CN113268033A - Mobile phone controlled automobile fault simulation and diagnosis device - Google Patents
Mobile phone controlled automobile fault simulation and diagnosis device Download PDFInfo
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- CN113268033A CN113268033A CN202110472863.9A CN202110472863A CN113268033A CN 113268033 A CN113268033 A CN 113268033A CN 202110472863 A CN202110472863 A CN 202110472863A CN 113268033 A CN113268033 A CN 113268033A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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Abstract
The invention discloses a mobile phone controlled automobile fault simulation and diagnosis device, which comprises a perforated panel, a box body and a bottom plate, wherein the perforated panel, the box body and the bottom plate jointly enclose a box body with an accommodating space; the connection jack group is provided with an input connection jack and an output connection jack; a fault simulation connecting circuit is arranged between the input connecting jack and the output connecting jack and is connected with a controller, the controller is connected with a wireless communication module, and the wireless communication module is connected with a smart phone. The invention provides a mobile phone controlled automobile fault simulation and diagnosis device which can set faults through a smart phone.
Description
Technical Field
The invention relates to the technical field of teaching supplies, in particular to a mobile phone controlled automobile fault simulation and diagnosis device.
Background
Application No. 201920921387.2, patentee Chongqing Industrial and Business academy, Notice: CN210803524U, utility model name: the utility model provides a car trouble simulation and multi-functional terminal box of detection, including the foraminiferous panel in upper portion, the rectangle frame, take the bottom plate of recess, foraminiferous panel, outband recess bottom plate and rectangle frame enclose into a box body that has accommodating space jointly, this accommodating space is equipped with the diagnosis circuit board, sliding resistance, the box body side is equipped with battery power and inserts the hole, the left side of box body, 2 pencil stitch interfaces on the right side altogether, the recess bottom is equipped with the button hole, power input output hole, sliding resistance adjust knob, sliding resistance connects the hole, the recess sealed apron. : the middle part of the panel with the hole is provided with 24 groups of wire harness measuring holes forming through holes together with the measuring holes of the groove bottom plate, and the wire harness measuring holes and the measuring holes are totally 48 round holes; the side of the junction box is provided with 2 external power supply holes. : 2 power supply holes are formed in the junction box panel and used for measurement; : the bottom of the outer groove of the junction box is provided with 2 sliding rheostat connecting holes, so that different resistance values of a circuit can be simulated in series connection; the 48 round holes in the middle of the panel are divided into a wire harness inlet measuring hole on the left side and a wire harness outlet measuring hole on the right side. : detection holes forming through holes with the panel detection holes are formed in the grooves of the bottom plate with the outer grooves, and button control is arranged among the groups to control the on-off of each wire harness; a sliding resistance of 0 ohms to 200 ohms is provided in the junction box body. The wire harness fault of all the whole vehicle circuit electric control systems can be set in a simulated mode, the measurement is convenient, the fault is convenient to recover, the original vehicle wire harness is not damaged, the original vehicle wire harness plug is not damaged, and the wire harness fault recovery device can be repeatedly used for many times. The requirement of the electric control detection maintenance teaching of the whole automobile circuit can be met, and the talent cultivation quality of schools is improved. The training device can be used for training teaching and skill competition.
The defect of the prior art is that the multifunctional junction box for simulating and detecting the automobile fault can only set the fault manually, and cannot set the fault remotely through a smart phone.
Disclosure of Invention
In view of at least one of the drawbacks of the prior art, it is an object of the present invention to provide a mobile phone controlled vehicle fault simulation and diagnosis apparatus capable of remotely setting a fault through a smart phone.
In order to achieve the purpose, the invention adopts the following technical scheme: a mobile phone controlled automobile fault simulation and diagnosis device comprises a perforated panel on the upper part, a cuboid box body and a bottom plate, wherein the perforated panel, the box body and the bottom plate jointly enclose a box body with an accommodating space, a storage battery power supply access jack combination, a wire harness stitch access port and a wire harness stitch access port are arranged on the side surface of the box body, at least one pair of detection jack groups are arranged on the perforated panel, each detection jack group is provided with an input detection jack and an output detection jack, and the bottom plate is provided with a connection jack group corresponding to the detection jack group; the connection jack group is provided with an input connection jack and an output connection jack; the intelligent mobile phone is characterized in that a controller is connected between the input connecting jack and the output connecting jack, the fault simulation connecting circuit is connected with the controller, the controller is connected with a wireless communication module, and the wireless communication module is connected with an intelligent mobile phone.
The intelligent mobile phone sends an instruction to the controller, and the controller controls the fault simulation connecting circuit to work, so that the fault can be set remotely.
The controller is a PLC controller, the wireless communication module is an intelligent acquisition gateway, the intelligent acquisition gateway is connected with the PLC controller, and the intelligent acquisition gateway is connected with the smart phone through a server.
The fault simulation connecting circuit comprises a first relay, a second relay and an adjustable resistor R1, a coil of the first relay and a coil of the second relay are controlled to be powered on and powered off by a PLC (programmable logic controller), an input connecting jack is connected to one end of a normally open switch of the first relay, an output connecting jack is connected to the other end of the normally open switch of the first relay, the input connecting jack is connected to one end of the normally open switch of the second relay, and the output connecting jack is connected to the other end of the normally open switch of the second relay through the adjustable resistor R1.
The detection jack group and the connection jack group are both 24 pairs.
The panel with the holes is also provided with a panel power jack combination, the bottom plate is also provided with a bottom plate power jack combination, the bottom plate power jack combination is correspondingly connected with the panel power jack combination through a connecting wire, and the bottom plate power jack combination is correspondingly connected with the storage battery power supply access jack combination through a fuse.
The bottom plate stretches into in the box body, and the bottom of box body still detachably is provided with the apron, and the apron covers the bottom plate, and controller and wireless communication module set up in the box body.
The controller is a single chip microcomputer, and the wireless communication module is a Bluetooth module.
The fault simulation connection circuit comprises a triode Q1, a triode Q2 and a variable resistor RX1, wherein a collector of the triode Q1 is connected with an input connection jack, a base of the triode Q1 is connected with a single chip microcomputer, a collector of the triode Q1 is connected with an emitter of the triode Q1 through the variable resistor RX1, an emitter of the triode Q1 is connected with a collector of the triode Q2, an emitter of the triode Q2 is connected with an output connection jack, a base of the triode Q1 is connected with a base of the triode Q2 through the resistor RX2, a base of the triode Q2 is connected with the single chip microcomputer, and a base of the triode Q2 is grounded through the resistor RX 3.
The fault simulation connection circuit comprises at least two corresponding connection jack groups, the first fault simulation connection circuit comprises a six-out-of-one selection switch K1, the input connection jack of the first connection jack group is connected with the input end of a six-out-of-one selection switch K1, the 1 st output end of a six-out-of-one selection switch K1 is connected with the output connection jack of the first connection jack group, the 2 nd output end of a six-out-of-one selection switch K1 is connected with the output connection jacks of other connection jack groups, the 3 rd output end of the six-out-of-one selection switch K1 is connected with the positive jack of the bottom plate power jack combination, the 4 th output end of the six-out-of-one selection switch K1 is connected with the negative jack of the bottom plate power jack combination, the 5 th output end of a six-out-of-one selection switch K1 is suspended, and the 6 th output end of the six-out-of-one selection switch K1 is connected with the output connection jack group of the first connection jack group through a variable resistor RY 1; the singlechip is connected with a one-out-of-six selection switch K1 to control the work of the singlechip.
The automobile fault simulation and diagnosis device controlled by the mobile phone has the remarkable effect that faults can be set remotely through the smart phone.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a view taken along line A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
FIG. 4 is a circuit diagram of a first fault-simulating junction circuit;
FIG. 5 is a circuit configuration diagram of one of the PLC controllers;
FIG. 6 is a circuit diagram of a second fault simulation connection;
fig. 7 is a circuit diagram of a third fault-simulating connection.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1-7, a mobile phone controlled automobile fault simulation and diagnosis device includes an upper perforated panel 1, a rectangular box body 2 and a bottom plate 3, the perforated panel 1, the box body 2 and the bottom plate 3 together enclose a box body with a containing space, a side of the box body 2 is provided with a storage battery power supply access jack combination 14, a wiring harness stitch access port 5 and a wiring harness stitch access port 6, the perforated panel 1 is provided with at least a pair of detection jack groups, the detection jack groups are provided with an input detection jack 7 and an output detection jack 8, the bottom plate 3 is provided with a connection jack group corresponding to the detection jack groups; the connection jack group is provided with an input connection jack 9 and an output connection jack 10; a fault simulation connecting circuit is arranged between the input connecting jack 9 and the output connecting jack 10, the fault simulation connecting circuit is connected with a controller, the controller is connected with a wireless communication module, and the wireless communication module is connected with a smart phone 18. The battery power access jack assembly 14 may provide power to the controller.
The wiring harness stitch access port 5 is correspondingly connected with the input connecting jack 9 through a connecting wire, the wiring harness stitch access port 6 is correspondingly connected with the output connecting jack 10 through a connecting wire, the input detection jack 7 is correspondingly connected with the input connecting jack 9 through a connecting wire, and the output detection jack 8 is correspondingly connected with the output connecting jack 10 through a connecting wire.
The automobile wire harness is connected into the box body through the warp beam pin inlet 5, and is led out of the box body through the warp beam pin outlet 6. The wiring harness stitch access port 5 and the wiring harness stitch access port 6 are both provided with marks corresponding to the serial number marks of the detection jack group and the connection jack group.
The teacher sends an instruction to the controller through the smart phone 18 via the wireless communication module, the controller controls the fault simulation connection circuit to work, and the fault simulation connection circuit can enable the input connection jack 9 and the output connection jack 10 to be in a connected, disconnected and connected resistance state and is used for simulating the connection fault of the automobile wiring harness. The invention can control the fault simulation connecting circuit to work through the smart phone 18, thereby facilitating the setting and eliminating of the fault through the smart phone.
The controller is a PLC (programmable logic controller) 15, the wireless communication module is an intelligent acquisition gateway 16, the intelligent acquisition gateway 16 is connected with the PLC 15, and the intelligent acquisition gateway 16 is connected with an intelligent mobile phone 18 through a server 17.
As shown in fig. 2 to 4, one of the controllers is a PLC controller 15, and the PLC controller 15 is wirelessly connected to a smart phone 18 through a server 17 via an intelligent acquisition gateway 16.
The fault simulation connection circuit comprises a first relay, a second relay and an adjustable resistor R1, a PLC (programmable logic controller) 15 controls a coil KM1-1 of the first relay and a coil KM2-1 of the second relay to be switched on and off, one end of a normally open switch KM1-2 of the first relay is connected with an input connection jack 9, the other end of the normally open switch KM1-2 of the first relay is connected with an output connection jack 10, one end of a normally open switch KM2-2 of the second relay is connected with the input connection jack 9, and the other end of the normally open switch KM2-2 of the second relay is connected with the output connection jack 10 through the adjustable resistor R1.
As shown in fig. 3 and 4, when the PLC controller 15 controls the coil KM1-1 of the first relay to be energized, the normally open switch KM1-2 of the first relay is closed, and the input connection jack 9 and the output connection jack 10 are in the on state. When the PLC 15 controls the coil KM2-1 of the second relay to be electrified, the normally open switch KM2-2 of the second relay is closed, the input connection jack 9 is connected with the output connection jack 10 through the adjustable resistor R1, and the resistance between the input connection jack 9 and the output connection jack 10 is increased to simulate the fault of poor contact between the input connection jack 9 and the output connection jack 10; when the PLC 15 controls the coil KM1-1 of the first relay and the coil KM2-1 of the second relay to be powered off, the normally open switch KM1-2 of the first relay and the normally open switch KM2-2 of the second relay are both switched off, and the normally open switches are used for simulating the open circuit fault between the input connecting jack 9 and the output connecting jack 10, so that the related automobile wire harness is simulated to be disconnected.
As shown in fig. 1 and 3, the detection jack group and the connection jack group are 24 pairs, and the fault simulation connection circuit is correspondingly provided with 24 pairs.
The panel with the holes 1 is further provided with a panel power supply jack combination 11, the bottom plate 3 is further provided with a bottom plate power supply jack combination 12, the bottom plate power supply jack combination 12 is correspondingly connected with the panel power supply jack combination 11 through a connecting wire, and the bottom plate power supply jack combination 12 is correspondingly connected with a storage battery power supply access jack combination 14 through a fuse 13.
By adopting the structure, the detection device can be used for judging whether short-circuit faults exist between the input detection jack 7 and the output detection jack 8 and the positive jack and the negative jack of the panel power supply jack combination 11 through the positive jack and the negative jack of the panel power supply jack combination 11, so that whether short-circuit faults exist between the corresponding automobile wire harness and the positive jack and the negative jack of the storage battery power supply access jack combination 14 or not can be conveniently diagnosed.
As shown in fig. 2, the bottom plate 3 extends into the box body 2, the bottom of the box body 2 is also detachably provided with a cover plate 4, the cover plate 4 covers the bottom plate 3, and the fault simulation connecting circuit, the controller and the wireless communication module are arranged in the box body. The box body 2 and the panel with holes 1 are made of plastics, and the detection jack group, the connection jack group, the panel power jack combination 11, the bottom plate power jack combination 12 and the storage battery power access jack combination 14 are made of conductive metals.
The apron 4 covers bottom plate 3 and can avoid the student to snoop the state of trouble simulation connecting circuit through the bottom of box body 2, and trouble simulation connecting circuit, controller and wireless communication module set up in 3 upper surfaces of bottom plate, arrange the box body in.
Preferably, the bottom of the panel with holes 1 is also provided with a baffle plate to prevent students from snooping the fault simulation connecting circuit in the box body from the input detection jack 7 and the output detection jack 8.
The controller is a single chip microcomputer, and the wireless communication module is a Bluetooth module.
The other controller can also be a single chip microcomputer which is connected with the smart phone 18 through a Bluetooth module.
The fault simulation connection circuit comprises a triode Q1, a triode Q2 and a variable resistor RX1, wherein a collector of the triode Q1 is connected with an input connection jack 9, a base of the triode Q1 is connected with a single chip microcomputer, a collector of the triode Q1 is connected with an emitter of the triode Q1 through the variable resistor RX1, an emitter of the triode Q1 is connected with a collector of the triode Q2, an emitter of the triode Q2 is connected with an output connection jack 10, a base of the triode Q1 is connected with a base of the triode Q2 through the resistor RX2, a base of the triode Q2 is connected with the single chip microcomputer, and a base of the triode Q2 is grounded through the resistor RX 3.
With reference to fig. 6, the working principle of the above structure arrangement is: when the single chip microcomputer outputs a high level through the control end P1, the switching triode Q1 and the switching triode Q2 are both conducted, and the input connection jack 9 and the output connection jack 10 are in a communicated state; when the single chip microcomputer outputs a high level through a control end P2, a switching triode Q1 is cut off, a switching triode Q2 is conducted, and an input connection jack 9 is connected with an output connection jack 10 through a variable resistor RX1 and used for simulating poor connection faults; when the control end P1 and the control end P2 of the single chip microcomputer output low levels, the input connection jack 9 and the output connection jack 10 are in an open circuit state; for simulating an open circuit fault.
The switching triode Q1 and the switching triode Q2 can also control the corresponding relay to work, and the connection, disconnection and poor connection states of the input connection jack 9 and the output connection jack 10 are completed through a normally open switch and a variable resistor of the relay.
The fault simulation connection circuit comprises at least two corresponding connection jack groups, the first fault simulation connection circuit comprises a six-out-of-one selection switch K1, an input connection jack 9 of the first connection jack group is connected with the input end of a six-out-of-one selection switch K1, the 1 st output end of a six-out-of-one selection switch K1 is connected with the output connection jack 10 of the first connection jack group, the 2 nd output end of a six-out-of-one selection switch K1 is connected with the output connection jacks 10 of other connection jack groups, the 3 rd output end of a six-out-of-one selection switch K1 is connected with the positive jack of the bottom plate power jack combination 12, the 4 th output end of a six-out-of-one selection switch K1 is connected with the negative jack of the bottom plate power jack combination 12, the 5 th output end of a six-out-of-one selection switch K1 is suspended, and the 6 th output end of a six-out-of-out-of-out-one selection switch K1 is connected with the output connection jack group 10 of the first connection jack group through a variable resistor RY 1; the singlechip is connected with a one-out-of-six selection switch K1 to control the work of the singlechip.
As shown in fig. 7, the input connection jack 1 is connected to the input terminal K10 of the one-of-six selection switch K1, the 1 st output terminal K11 of the one-of-six selection switch K1 is connected to the output connection jack 1, the 2 nd output terminal K12 of the one-of-six selection switch K1 is connected to the output connection jack 2, the 3 rd output terminal K13 of the one-of-six selection switch K1 is connected to the positive jack of the backplane power jack assembly 12, the 4 th output terminal K14 of the one-of-six selection switch K1 is connected to the negative jack of the backplane power jack assembly 12, the 5 th output terminal K15 of the one-of-six selection switch K1 is floating, and the 6 th output terminal K16 of the one-of-six selection switch K1 is connected to the output connection jack 1 via the variable resistor RY 1.
The No. 2 input connection jack is connected with an input end K20 of a one-out-six selection switch K2, a 1 st output end K21 of a one-out-six selection switch K2 is connected with a No. 2 output connection jack, a 2 nd output end K22 of a one-out-six selection switch K2 is connected with a No. 1 output connection jack, a 3 rd output end K23 of a one-out-six selection switch K2 is connected with a positive jack of the bottom plate power jack combination 12, a 4 th output end K24 of a one-out-six selection switch K2 is connected with a negative jack of the bottom plate power jack combination 12, a 5 th output end K25 of the one-out-six selection switch K2 is suspended, and a 6 th output end K26 of the one-out-six selection switch K2 is connected with a No. 2 output connection jack through a variable resistor RY 2.
The six-in-one selector switch K1 and the six-in-one selector switch K2 are electronic switches, the smart phone 18 sends an instruction to the single chip microcomputer 6 to control the input end K10 of the six-in-one selector switch K1 to be connected with the 1 st output end K11, the 2 nd output end K12, the 3 rd output end K13, the 4 th output end K14, the 5 th output end K15 and the 6 th output end K16 of the six-in-one selector switch K1 respectively.
When the input end K10 is connected with the 1 st output end K11, the No. 1 input connecting jack is connected with the No. 1 output connecting jack, and the communication state is simulated; when the input end K10 is connected with the 2 nd output end K12, the No. 1 input connecting jack is connected with the No. 2 output connecting jack, and the crossing state of the wiring harnesses is simulated;
when the input end K10 is connected with the output end K13 of the No. 1, the input connection jack is connected with the positive jack of the power jack combination 12 of the bottom plate;
when the input end K10 is connected with the 4 th output end K14, the No. 1 input connection jack is connected with the negative jack of the bottom plate power jack combination 12;
when the input end K10 is connected with the 5 th output end K15, the No. 1 input connecting jack and the No. 1 output connecting jack are disconnected, and the disconnection state is simulated;
when the input end K10 is connected with the 6 th output end K16, the No. 1 input connection jack is connected with the No. 1 output connection jack through the resistor RY1 and used for simulating a poor contact state.
The operation principle of the one-out-of-six selection switch K2 is the same.
The fuse 13 is also correspondingly connected with the storage battery power supply access jack combination 14 through a current-limiting resistor, so that the current is limited in a proper range, and circuit elements are prevented from being burnt out in the case of short-circuit fault.
Finally, it is noted that: the above-mentioned embodiments are only examples of the present invention, and it is a matter of course that those skilled in the art can make modifications and variations to the present invention, and it is considered that the present invention is protected by the modifications and variations if they are within the scope of the claims of the present invention and their equivalents.
Claims (9)
1. A mobile phone controlled automobile fault simulation and diagnosis device comprises a perforated panel (1) on the upper part, a cuboid-shaped box body (2) and a bottom plate (3), wherein the perforated panel (1), the box body (2) and the bottom plate (3) jointly enclose a box body with an accommodating space, a storage battery power supply access jack combination (14), a wiring harness stitch access port (5) and a wiring harness stitch access port (6) are arranged on the side surface of the box body (2), at least one pair of detection jack groups are arranged on the perforated panel (1), an input detection jack (7) and an output detection jack (8) are arranged on each detection jack group, and a connection jack group corresponding to each detection jack group is arranged on the bottom plate (3); the connecting jack group is provided with an input connecting jack (9) and an output connecting jack (10); the intelligent mobile phone is characterized in that a fault simulation connecting circuit is arranged between the input connecting jack (9) and the output connecting jack (10), the fault simulation connecting circuit is connected with a controller, the controller is connected with a wireless communication module, and the wireless communication module is connected with an intelligent mobile phone (18).
2. The mobile phone controlled automobile fault simulation and diagnosis device according to claim 1, wherein: the controller is a PLC (programmable logic controller) controller (15), the wireless communication module is an intelligent acquisition gateway (16), the intelligent acquisition gateway (16) is connected with the PLC controller (15), and the intelligent acquisition gateway (16) is connected with an intelligent mobile phone (18) through a server (17).
3. The mobile phone controlled automobile fault simulation and diagnosis device according to claim 2, wherein: the fault simulation connecting circuit comprises a first relay, a second relay and an adjustable resistor R1, a coil of the first relay and a coil of the second relay are controlled by a PLC (15), an input connecting jack (9) is connected to one end of a normally open switch of the first relay, an output connecting jack (10) is connected to the other end of the normally open switch of the first relay, the input connecting jack (9) is connected to one end of the normally open switch of the second relay, and the other end of the normally open switch of the second relay is connected with the output connecting jack (10) through the adjustable resistor R1.
4. The mobile phone controlled automobile fault simulation and diagnosis device according to claim 1, wherein: the detection jack group and the connection jack group are both 24 pairs.
5. The mobile phone controlled automobile fault simulation and diagnosis device according to claim 1, wherein: the panel power supply jack combination (11) is further arranged on the panel with the holes (1), the bottom plate power supply jack combination (12) is further arranged on the bottom plate (3), the bottom plate power supply jack combination (12) is correspondingly connected with the panel power supply jack combination (11) through a connecting wire, and the bottom plate power supply jack combination (12) is correspondingly connected with the storage battery power supply access jack combination (14) through a fuse (13).
6. The mobile phone controlled automobile fault simulation and diagnosis device according to claim 1, wherein: bottom plate (3) stretch into in box body (2), the bottom of box body (2) still detachably is provided with apron (4), and apron (4) cover bottom plate (3), and controller and wireless communication module set up in the box body.
7. The mobile phone controlled automobile fault simulation and diagnosis device according to claim 1, wherein: the controller is a single chip microcomputer, and the wireless communication module is a Bluetooth module.
8. The mobile phone controlled automobile fault simulation and diagnosis device according to claim 7, wherein: the fault simulation connecting circuit comprises a triode Q1, a triode Q2 and a variable resistor RX1, wherein the collector of the triode Q1 is connected with an input connecting jack (9), the base of the triode Q1 is connected with a single chip microcomputer, the collector of the triode Q1 is connected with the emitter of the triode Q1 through the variable resistor RX1, the emitter of the triode Q1 is connected with the collector of the triode Q2, the emitter of the triode Q2 is connected with an output connecting jack (10), the base of the triode Q1 is connected with the base of the triode Q2 through the resistor RX2, the base of the triode Q2 is connected with the single chip microcomputer, and the base of the triode Q2 is grounded through the resistor RX 3.
9. The mobile phone controlled automobile fault simulation and diagnosis device according to claim 1, wherein: the fault simulation connection circuit comprises at least two corresponding connection jack groups, wherein the corresponding connection jack groups are provided with at least two groups, the first fault simulation connection circuit comprises a six-to-one selection switch K1, the input connection jack (9) of the first group of connection jack groups is connected with the input end of a six-to-one selection switch K1, the 1 st output end of a six-to-one selection switch K1 is connected with the output connection jack (10) of the first group of connection jack groups, the 2 nd output end of a six-to-one selection switch K1 is connected with the output connection jacks (10) of other connection jack groups, the 3 rd output end of the six-to-one selection switch K1 is connected with the positive jack of the bottom plate power jack combination (12), the 4 th output end of the six-to-one selection switch K1 is connected with the negative jack of the bottom plate power jack combination (12), the 5 th output end of the six-to-one selection switch K1 is suspended, and the 6 th output end of the six-to-one selection switch K1 is connected with the output connection jacks (10) of the first group of connection jack groups through a variable resistor RY 1; the singlechip is connected with a one-out-of-six selection switch K1 to control the work of the singlechip.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114301123A (en) * | 2021-12-28 | 2022-04-08 | 中国汽车工程研究院股份有限公司 | Power supply circuit diagnosis working method for new energy automobile |
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