Vehicle test system and vehicle

Abstract

The utility model provides a vehicle test system and a vehicle. The test system comprises a test cabinet, a junction box and a controller which are connected in sequence. The junction box comprises a first connector, a matching unit, a gating unit and a second connector, and the junction box is electrically connected with the test cabinet through the first connector and electrically connected with the controller through the second connector; therefore, the matching unit and the junction box are arranged into a whole, the number of incoming and outgoing wire harnesses can be reduced, the attractiveness is improved, the occupied area can be saved, and the problem of short circuit caused by disordered wiring is avoided. Wherein the matching unit, the gating unit and the second connector are connected in sequence, and the first connector is electrically connected with the matching unit and the gating unit. The first connector is electrically connected with the matching unit, the gating unit and the second connector to form a first test channel; the connector is electrically connected with the gating unit and the second connector to form a second test channel, and the two channels can improve the test requirements of the test system.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a vehicle testing system and a vehicle. Background Art

[0002] In the prior art, when testing the vehicle controller, the signal output by the test cabinet cannot fully meet the requirements of the controller. It is necessary to add some matching circuits and short-circuit boxes at the output end of the test cabinet and then connect the controller to meet the testing requirements of the controller. However, the existing matching circuits and short-circuit boxes are set separately, resulting in a large number of incoming and outgoing wiring harnesses, which are messy and prone to short circuits, affecting the appearance and occupying a large area. Utility Model Content

[0003] In view of this, the purpose of the utility model is to propose a vehicle testing system and a vehicle to solve the problems of the existing vehicle controller test in which the matching circuit and the junction box are set separately, resulting in a large number of incoming and outgoing wiring harnesses, chaos, line short circuits, and affecting the appearance and occupying a large area.

[0004] Based on the above purpose, the utility model provides a vehicle testing system, comprising: a test cabinet, a junction box and a controller connected in sequence;

[0005] The junction box comprises a first connector, a matching unit, a gating unit and a second connector, the junction box is electrically connected to the test cabinet through the first connector, and is electrically connected to the controller through the second connector;

[0006] The matching unit, the gating unit and the second connector are connected in sequence, and the first connector is electrically connected to the matching unit and the gating unit respectively.

[0007] Optionally, the matching unit includes a wiring terminal, a pull-up resistor circuit, a main relay, a pull-down resistor circuit and at least one signal control circuit, and the pull-up resistor circuit, the main relay, the pull-down resistor circuit and the at least one signal control circuit are electrically connected to the first connector and the selection unit respectively through the wiring terminal.

[0008] Optionally, the wiring terminals include a first row of terminals and a second row of terminals that are electrically connected, the first row of terminals being used to electrically connect the first connector with the pull-up resistor circuit, the main relay, the pull-down resistor circuit and the at least one signal control circuit, and the second row of terminals being used to electrically connect the selection unit with the pull-up resistor circuit, the main relay, the pull-down resistor circuit and the at least one signal control circuit.

[0009] Optionally, the gating unit includes multiple groups of sockets and multiple short-circuit plugs, each group of sockets is connected to one short-circuit plug, each group of sockets includes a first socket and a second socket, the first socket is used to electrically connect to the second row of terminals, and the second socket is used to electrically connect to the second connector.

[0010] Optionally, the gating unit includes multiple groups of sockets and multiple short-circuit plugs, each group of sockets is connected to one short-circuit plug, each group of sockets includes a first socket and a second socket, the first socket is used to connect to the first connector, and the second socket is used to electrically connect to the second connector.

[0011] Optionally, the matching unit includes a circuit board, and the pull-up resistor circuit, the main relay, the pull-down resistor circuit and the at least one signal control circuit are all arranged on the circuit board.

[0012] Optionally, the junction box further includes a U-shaped shell, and the circuit board is fixed to an open side of the U-shaped shell.

[0013] Optionally, the first connector and the second connector are both arranged on the side wall of the U-shaped housing.

[0014] Optionally, the gating unit further includes a fixing plate, and the fixing plate is fixed to the other opening side of the U-shaped housing.

[0015] The utility model also provides a vehicle, comprising any one of the above-mentioned vehicle testing systems.

[0016] As can be seen from the above, the utility model provides a vehicle testing system and a vehicle, wherein the testing system comprises a test cabinet, a junction box and a controller connected in sequence; the junction box comprises a first connector, a matching unit, a gating unit and a second connector, the junction box is electrically connected to the test cabinet through the first connector, and is electrically connected to the controller through the second connector. Thus, the matching unit and the junction box are set as one, which can reduce the number of incoming and outgoing wiring harnesses and improve the aesthetics, and the matching unit and the connecting wiring harness are both arranged in the junction box, which can save the occupied area and avoid the problem of short circuit caused by disorderly wiring. Among them, the matching unit, the gating unit and the second connector are connected in sequence, and the first connector is electrically connected to the matching unit and the gating unit respectively. According to the test requirements, the controller can be tested using the first test channel formed by the electrical connection of the first connector with the matching unit, the gating unit and the second connector, and the controller can also be tested using the second test channel formed by the electrical connection of the first connector with the gating unit and the second connector, thereby improving the test requirements of the test system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structural framework of a vehicle testing system according to an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the internal structure framework of a junction box of a vehicle testing system according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the specific structure of the junction box of an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of a wiring terminal circuit according to an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of a pull-up resistor circuit and a pull-down resistor circuit according to an embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of a first signal control circuit according to an embodiment of the utility model;

[0024] Figure 7 This is a schematic diagram of a second signal control circuit according to an embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of a second signal control circuit according to an embodiment of the present utility model.

[0026] Reference numerals:

[0027] 1. Test cabinet; 2. Junction box; 3. Controller; 21. Selection unit; 22. First connector; 23. Second connector; 24. Matching unit; 20. U-shaped housing; 201. Fixing plate; 211. Socket; 212. Short-circuit plug; 211a. First socket; 211b. Second socket; 240. Circuit board; 241. Wiring terminal; 242. Pull-down resistor circuit; 243. Main relay; 244. Signal control circuit; 245. Pull-up resistor circuit; 241a. First row of terminals; 241b. Second row of terminals; R1. First resistor; R2. Second resistor; R3. Third resistor; R4. Fourth resistor; R 5. The fifth resistor; R6. The sixth resistor; R7. The seventh resistor; R8. The eighth resistor; R9. The ninth resistor; R10. The tenth resistor; R11. The eleventh resistor; R12. The twelfth resistor; R13. The thirteenth resistor; R14. The fourteenth resistor; R15. The fifteenth resistor; R16. The sixteenth resistor; R17. The seventeenth resistor; R18. The eighteenth resistor; R19. The nineteenth resistor; R20. The twentieth resistor; C1. The first capacitor; C2. The second capacitor; C3. The third capacitor; C4. The fourth capacitor; C5. The fifth capacitor; C6. The sixth capacitor; GND. The ground terminal; D1. The diode; Q1. The transistor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0029] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Based on the background technology, the existing matching circuit is connected to the test cabinet 1 and the short-circuit box by a terminal block. The matching circuit and the terminal block are arranged on the circuit board to form a whole, but the circuit board and the short-circuit box are arranged separately. The matching circuit needs to pass through more wiring harnesses to connect with the short-circuit box, which leads to more inlet and outlet wiring harnesses, which are messy and prone to line short circuits, affecting the aesthetics. In addition, since the matching circuit and the terminal block are carried on the circuit board, and then connected to the short-circuit box through multiple sets of wiring harnesses, the test system will occupy a large area.

[0031] To solve the above problems, refer to Figure 1-2 , the utility model provides a vehicle testing system, comprising a testing cabinet 1, a junction box 2 and a controller 3 connected in sequence;

[0032] The junction box 2 includes a first connector 22, a matching unit 24, a gating unit 21 and a second connector 23. The junction box 2 is electrically connected to the test cabinet 1 through the first connector 22 and is electrically connected to the controller 3 through the second connector 23.

[0033] The matching unit 24, the gating unit 21 and the second connector 23 are connected in sequence, and the first connector 22 is electrically connected to the matching unit 24 and the gating unit 21 respectively.

[0034] Specifically, the vehicle test system includes a test cabinet 1, a junction box 2 and a controller 3. The test cabinet 1 is connected to the controller 3 through the junction box 2. The junction box 2 can be a Break-Out Box (BOB) junction box, that is, a fault test box, which can include 120 channels. For testers to perform fault tests. The junction box 2 includes a first connector 22, a matching unit 24, a gating unit 21 and a second connector 23. The junction box 2 is electrically connected to the test cabinet 1 through the first connector 22, so that the control signal output by the test cabinet 1 is input into the junction box 2 via the first connector 22. The junction box 2 is electrically connected to the controller 3 through the second connector 23, and the junction box 2 inputs the control signal to the controller 3 via the second connector 23. By setting the matching unit 24 and the junction box 2 as one, the number of in-and-out wiring harnesses can be reduced, and the aesthetics can be improved. The matching unit 24 and the connecting wiring harness are both arranged in the junction box 2, which can save the occupied area and avoid the problem of line short circuit caused by disorderly wiring. Among them, the matching unit 24, the gating unit 21 and the second connector 23 are connected in sequence, and the first connector 22 is electrically connected to the matching unit 24 and the gating unit 21 respectively. It can be understood that the vehicle test system includes two test channels, the first test channel is a test channel with a matching circuit formed by connecting a part of the terminals of the first connector 22 to the matching unit 24, and the matching unit 24 is connected to the gating unit 21 and the second connector 23 in sequence. The first test channel is also a test channel with a matching circuit. The second test channel is a second test channel formed by connecting another part of the terminals of the first connector 22 to the gating unit 21, and the gating unit 2 is connected to the second connector 23. The second test channel is also a conventional test channel, that is, the first connector 22 is directly connected to the second connector 23 through the gating unit 21, the test cabinet 1 is connected to the junction box 2 through the first connector 22, and the junction box 2 is connected to the controller 3 through the second connector 23. According to the test requirements, the controller 3 can be tested by using the first test channel formed by the electrical connection between the first connector 22 and the matching unit 24, the gating unit 21 and the second connector 23, and the controller 3 can also be tested by using the second test channel electrically connected between the first connector 22 and the gating unit 21 and the second connector 23, thereby improving the test requirements of the test system. Under the control of the tester on the junction box 2, the junction box 2 inputs the control signal into the controller 3 via the conduction line in the junction box 2 to implement the fault test of the controller 3.

[0035] Furthermore, the test cabinet adopts a HIL cabinet.

[0036] In some embodiments, Figure 2As shown, the matching unit 24 includes a wiring terminal 241, a pull-up resistor circuit 245, a main relay 243, a pull-down resistor circuit 242 and at least one signal control circuit 244. The pull-up resistor circuit 245, the main relay 243, the pull-down resistor circuit 242 and at least one signal control circuit 244 are electrically connected to the first connector 22 and the selection unit 21 respectively through the wiring terminal 241.

[0037] Specifically, the matching unit 24, i.e., the matching circuit, includes a connection terminal 241, a pull-up resistor circuit 245, a main relay 243, a pull-down resistor circuit 242, and at least one signal control circuit 244. The matching unit 24 connects each circuit inside the matching unit 24 with the first connector 22 and the gating unit 21 through the connection terminal 241, so that the first connector 22, the matching unit 24, and the gating unit 21 are connected in series, and the test cabinet 1, the first connector 22, the matching unit 24, the gating unit 21, the second connector 23, and the controller 3 are connected in series, so that the tester can perform a fault test on the controller 3 through the first test channel. Among them, each circuit is the pull-up resistor circuit 245, the main relay 243, the pull-down resistor circuit 242, and at least one signal control circuit 244.

[0038] In some embodiments, Figure 2 As shown, the wiring terminal 241 includes a first row of terminals 241a and a second row of terminals 241b that are electrically connected. The first row of terminals 241a is used to electrically connect the first connector 22 with the pull-up resistor circuit 245, the main relay 243, the pull-down resistor circuit 242 and the at least one signal control circuit 244, and the second row of terminals 241b is used to electrically connect the selection unit 21 with the pull-up resistor circuit 245, the main relay 243, the pull-down resistor circuit 242 and the at least one signal control circuit 244.

[0039] Specifically, the connection terminal 241 includes a first row of terminals 241a and a second row of terminals 241b. The first row of terminals 241a is used to electrically connect the first connector 22 and each circuit (pull-up resistor circuit 245, main relay 243, pull-down resistor circuit 242 and at least one signal control circuit 244) of the matching unit 24, that is, each circuit of the matching unit 24 is connected to the first connector 22 through the first row of terminals 241a, so that one end of each circuit is electrically connected to the test cabinet 1 through the first connector 22. The second row of terminals 241b is used to electrically connect the gating unit 21 to each circuit of the matching unit 24, that is, the other end of each circuit of the matching unit 24 is connected to the gating unit 21 through the second row of terminals 241b, so that the other end of each circuit is electrically connected to the controller 3 through the gating unit 21 and the second connector 23, that is, the matching unit 24 is connected in series between the test cabinet 1 and the controller 3, so as to process the output signal of the test cabinet 1 and meet the test requirements of the controller 3.

[0040] Furthermore, if Figure 2 and 5 As shown, the pull-up resistor circuit 245 includes a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18 and a nineteenth resistor R19, the first ends of the resistors are connected in parallel and connected to the power supply end, the power supply end of the resistors shares a power supply with the power supply end of the test cabinet 1, the power supply adopts a +12V power supply, and the second ends of the resistors are respectively electrically connected to the second row terminals 241b. Among them, the second ends of the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11, the twelfth resistor R12, the thirteenth resistor R13, the fourteenth resistor R14, the fifteenth resistor R15, the sixteenth resistor R16, the seventeenth resistor R17, the eighteenth resistor R18 and the nineteenth resistor R19 are connected to the corresponding pins of the first row of terminals 241a and the second row of terminals 241b (that is, the U4 and U1 chips) through the corresponding UP6, UP5, UP4, UP3, UP2, UP1, UP12, UP11, UP10, UP9, UP8, UP7, UP14 and UP13 interfaces respectively.

[0041] like Figure 2 and Figure 5As shown, the pull-down resistor circuit 242 includes a fourth resistor R4, a fifth resistor R5 and a twentieth resistor R20, the first ends of the resistors are connected in parallel and connected to the ground terminal GND, the ground terminals GND of the resistors share a ground terminal GND with the ground terminal GND of the test cabinet 1, and the second ends of the resistors are electrically connected to the second row of terminals 241b respectively. The second ends of the fourth resistor R4, the fifth resistor R5 and the twentieth resistor R20 are connected to the pins corresponding to the first row of terminals 241a and the second row of terminals 241b (i.e., U4 and U1 chips) through the corresponding DOWN3, DOWN2 and DOWN1 interfaces respectively.

[0042] like Figure 2 and Figure 4 As shown, the main relay 243 shares a power supply with the test cabinet 1, and the control end of the main relay 243 is electrically connected to the second row of terminals 241b. The main relay 243 uses a U3 chip, and the 1st and 3rd pins of the U3 chip are both connected to the power supply +12V, and the 2nd and 4th pins of the U3 chip are respectively connected to the 28th and 29th pins of the first terminal row 241a (that is, the U4 chip). The 30th, 31st and 32nd pins of the first row of terminals 241a and the second row of terminals 241b (that is, the U4 and U1 chips) are all connected to the power supply +12V.

[0043] like Figure 6 , Figure 7 and Figure 8As shown, in this embodiment, the at least one signal control circuit 244 includes a first signal control circuit, a second signal control circuit and a third signal control circuit, taking three signal control circuits as an example. Each signal control circuit corresponds to a group of sockets and controls a line. Therefore, in this embodiment, three first test channels can be included. The first signal control circuit, the second signal control circuit and the third signal control circuit have the same structure. Specifically, the signal conversion circuit 244 includes a first resistor R1, a second resistor R2, a third resistor R3, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a diode D1 and a transistor Q1. The diode D1 is connected in series with the first resistor R1, the first resistor R1 is also electrically connected to the collector of the transistor Q1, a first end of the diode D1 is connected to a power supply end, a first end of the sixth capacitor C6 is electrically connected to a first end of the diode D1, a second end of the sixth capacitor C6 is connected to a ground end GND, a first end of the fourth capacitor C4 is electrically connected to a second end of the first capacitor C1, a second end of the fourth capacitor C4 is connected to the ground end GND, a first end of the third resistor R3 is connected to the transistor Q1 The collector of the transistor Q1 is electrically connected to the collector of the transistor Q1, the second end of the third resistor R3 is electrically connected to the first row terminal 241a, the first end of the second capacitor C2 is electrically connected to the second end of the third resistor R3, the second end of the second capacitor C2 is connected to the ground terminal GND, the first end of the second resistor R2 is electrically connected to the base of the transistor Q1, the second end of the second resistor R2 is electrically connected to the second row terminal 241b, the first end of the fifth capacitor C5 is electrically connected to the base of the transistor Q1, the second end of the fifth capacitor C5 is connected to the ground terminal GND, the first end of the third capacitor C3 is electrically connected to the second end of the second resistor R2, the second end of the third capacitor C3 is connected to the ground terminal GND, and the emitter of the transistor Q1 is connected to the ground terminal GND. The second end of the third resistor R3 in the first signal control circuit is electrically connected to the first row terminal 241a through the PWMIN1 pin, and the second end of the second resistor R2 is electrically connected to the second row terminal 241b through the PWMOUT1 pin. The second end of the third resistor R3 in the second signal control circuit is electrically connected to the first row of terminals 241a through the PWMIN2 pin, and the second end of the second resistor R2 is electrically connected to the second row of terminals 241b through the PWMOUT2 pin. The second end of the third resistor R3 in the second signal control circuit is electrically connected to the first row of terminals 241a through the PWMIN3 pin, and the second end of the second resistor R2 is electrically connected to the second row of terminals 241b through the PWMOUT3 pin.

[0044] In some embodiments, Figure 2 and Figure 3As shown, the matching unit 24 includes a circuit board 240 , and the pull-up resistor circuit 245 , the main relay 243 , the pull-down resistor circuit 242 and the at least one signal control circuit 244 are all arranged on the circuit board 240 .

[0045] Furthermore, if Figure 3 As shown, the junction box 2 further includes a U-shaped housing 20 , and the circuit board 240 is fixed on an opening side of the U-shaped housing 20 .

[0046] Specifically, each circuit in the matching unit 24 is integrated on a circuit board 240, and the circuit board 240 is fixed to an opening side of the U-shaped housing 20, which can be understood as the circuit board 240 serving as a side wall of the U-shaped housing 20. In this way, the wiring of each circuit on the circuit board 240 is routed inside the U-shaped housing 20, while reducing the number of in-and-out wiring harnesses, improving aesthetics, saving occupied area, and avoiding the problem of short circuits caused by disorderly wiring.

[0047] In some embodiments, Figure 2 and 3 As shown, the gating unit 21 includes multiple groups of sockets 211 and multiple short-circuit plugs 212, each group of sockets 211 is connected to one short-circuit plug 212, each group of sockets 211 includes a first socket 211a and a second socket 211b, the first socket 211a is used to electrically connect to the second row of terminals 241b, and the second socket 211b is used to electrically connect to the second connector 23.

[0048] Furthermore, the gating unit 21 further includes a fixing plate 201 , and the fixing plate 201 is fixed to the other opening side of the U-shaped housing 20 .

[0049] Specifically, the gating unit 21 includes multiple groups of sockets 211 and multiple short-circuit plugs 212, and each group of sockets 211 is connected to a short-circuit plug 212. Exemplarily, the sockets 211 use 2mm banana sockets 211, and the short-circuit plugs 212 use double-row 5.08mm spacing short-circuit plugs 212. Each group of sockets 211 includes a first socket 211a and a second socket 211b, the first socket 211a is used to be electrically connected to the second row of terminals 241b, and the second socket 211b is used to be electrically connected to the second connector 23. In this way, after the short-circuit plug 212 is plugged into the first socket 211a and the second socket 211b, the second row of terminals 241b and the second connector 23 can be turned on, which also realizes connecting the matching circuit in series between the test cabinet 1 and the controller 3, so that the controller 3 can operate according to the signal processed by the matching circuit to meet the test requirements of the controller 3, or the test cabinet 1 can accurately receive the signal fed back by the controller 3 processed by the matching circuit. It is plugged into the short-circuit socket 212 through other lines for the tester to perform fault testing.

[0050] Furthermore, multiple groups of sockets 211 are arranged in an array on a fixing plate 201, and the fixing plate 201 is fixed to the other open side of the U-shaped shell 20. For example, the fixing plate 201 is fixed to one side of the top of the U-shaped shell 20, so that multiple short-circuit plugs 212 can be plugged into the matching sockets 211. A bottom mounting plate is also provided on one side of the bottom of the U-shaped shell 20, whereby the circuit board 240 is embodied as the side wall of the U-shaped shell 20, and the fixing plate 201 is embodied as the top wall of the top wall of the U-shaped shell 20. A mounting plate is provided at the bottom of the U-shaped shell 20, so that the U-shaped shell 20 forms a box, and all circuits are routed inside the box, so that the junction box 2 is beautiful and saves circuits.

[0051] In some embodiments, Figure 2 and Figure 5 As shown, the gating unit 21 includes multiple groups of sockets 211 and multiple short-circuit plugs 212, each group of sockets 211 is connected to one short-circuit plug 212, each group of sockets 211 includes a first socket 211a and a second socket 211b, the first socket 211a is used to connect to the first connector 22, and the second socket 211b is used to electrically connect to the second connector 23.

[0052] Specifically, the gating unit 21 includes multiple groups of sockets 211 and multiple short-circuit plugs 212, and each group of sockets 211 is connected to a short-circuit plug 212. Exemplarily, the sockets 211 use 2mm banana sockets 211, and the short-circuit plugs 212 use double-row 5.08mm spacing short-circuit plugs 212. Each group of sockets 211 includes a first socket 211a and a second socket 211b, the first socket 211a is used to be electrically connected to the first connector 22, and the second socket 211b is used to be electrically connected to the second connector 23. In this way, after the short-circuit plug 212 is plugged into the first socket 211a and the second socket 211b, the first connector 22 and the second connector 23 can be turned on, which also realizes that the test cabinet 1 and the controller 3 are directly connected, so that the controller 3 can directly operate according to the control signal output by the test cabinet 1, or the test cabinet 1 directly receives the signal fed back by the controller 3, and plugs it into the short-circuit plug 212 through other lines for the tester to perform fault testing.

[0053] In some embodiments, Figure 1 and Figure 2 As shown, the first connector 22 and the second connector 23 are both arranged on the side wall of the U-shaped housing 20 .

[0054] Specifically, the first connector 22 and the second connector 23 can be arranged on the same side wall of the U-shaped housing 20, or on different side walls, according to specific needs, which is not specifically limited in the present invention. The circuit board 240 in the present invention can be added according to the layout of the circuit in the specific matching unit 24, and the added circuit board 240 can also serve as other side walls of the U-shaped housing 20, so the first connector 22 and the second connector 23 can also be arranged on the circuit board 240 according to specific needs.

[0055] Furthermore, the first connector 22 and the second connector 23 may both be 108-core rectangular heavy-duty connectors, and may be fixed to the side wall of the U-shaped housing 20 by bolts.

[0056] It should be noted that the embodiments of the present invention can be further described in the following manner:

[0057] According to the actual test requirements, the number of signal control circuits is determined, and the number of circuit boards 240 is determined according to the occupied area of ​​the signal control circuits. The circuits in the matching unit 24 are integrated on at least one circuit board 240. After connecting each circuit to the corresponding socket 211, the circuit board 240 is fixed to the U-shaped shell 20, and the wiring terminal 241 is connected to the first connector 22 through a plug-in wire, the first connector 22 is connected to the test cabinet 1, and the second connector 23 is connected to the controller 3. After the connection is completed, according to the test requirements, the short-circuit plug 212 is plugged into the corresponding socket 211, and the external fault test circuit is connected to perform a fault test on the controller 3.

[0058] It should be noted that some embodiments of the utility model are described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0059] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0060] Although the present invention has been described in conjunction with specific embodiments of the present invention, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art based on the foregoing description. For example, other memory architectures may use the discussed embodiments.

[0061] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vehicle testing system, characterized in that: include: A test cabinet (1), a junction box (2) and a controller (3) connected in sequence; The junction box (2) comprises a first connector (22), a matching unit (24), a gating unit (21) and a second connector (23); the junction box (2) is electrically connected to the test cabinet (1) via the first connector (22), and is electrically connected to the controller (3) via the second connector (23); The matching unit (24), the gating unit (21) and the second connector (23) are connected in sequence, and the first connector (22) is electrically connected to the matching unit (24) and the gating unit (21) respectively.

2. The vehicle testing system according to claim 1, characterized in that: The matching unit (24) comprises a connection terminal (241), a pull-up resistor circuit (245), a main relay (243), a pull-down resistor circuit (242) and at least one signal control circuit (244); the pull-up resistor circuit (245), the main relay (243), the pull-down resistor circuit (242) and the at least one signal control circuit (244) are electrically connected to the first connector (22) and the selection unit (21) respectively through the connection terminal (241).

3. The vehicle testing system according to claim 2, characterized in that: The connection terminal (241) comprises a first row of terminals (241a) and a second row of terminals (241b) which are electrically connected, wherein the first row of terminals (241a) is used to electrically connect the first connector (22) with the pull-up resistor circuit (245), the main relay (243), the pull-down resistor circuit (242) and the at least one signal control circuit (244), and the second row of terminals (241b) is used to electrically connect the selection unit (21) with the pull-up resistor circuit (245), the main relay (243), the pull-down resistor circuit (242) and the at least one signal control circuit (244).

4. The vehicle testing system according to claim 3, characterized in that: The gating unit (21) comprises a plurality of groups of sockets (211) and a plurality of short-circuit plugs (212), each group of sockets (211) being connected to one of the short-circuit plugs (212), each group of sockets (211) comprising a first socket (211a) and a second socket (211b), the first socket (211a) being used for electrically connecting to the second row of terminals (241b), and the second socket (211b) being used for electrically connecting to the second connector (23).

5. The vehicle testing system according to claim 1, characterized in that: The gating unit (21) comprises a plurality of groups of sockets (211) and a plurality of short-circuit plugs (212), each group of sockets (211) being connected to one of the short-circuit plugs (212), each group of sockets (211) comprising a first socket (211a) and a second socket (211b), the first socket (211a) being used to connect to the first connector (22), and the second socket (211b) being used to electrically connect to the second connector (23).

6. The vehicle testing system according to claim 2, characterized in that: The matching unit (24) comprises a circuit board (240), and the pull-up resistor circuit (245), the main relay (243), the pull-down resistor circuit (242) and the at least one signal control circuit (244) are all arranged on the circuit board (240).

7. The vehicle testing system according to claim 6, characterized in that: The junction box (2) further comprises a U-shaped shell (20), and the circuit board (240) is fixed on an opening side of the U-shaped shell (20).

8. The vehicle testing system according to claim 7, characterized in that: The first connector (22) and the second connector (23) are both arranged on the side wall of the U-shaped housing (20).

9. The vehicle testing system according to claim 7, characterized in that: The gating unit (21) further comprises a fixing plate (201), wherein the fixing plate (201) is fixed to the other opening side of the U-shaped housing (20).

10. A vehicle, characterized in that: A vehicle testing system comprising any one of claims 1-9.

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