CN112382894B - Vehicle debugging circuit and method - Google Patents

Vehicle debugging circuit and method Download PDF

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Publication number
CN112382894B
CN112382894B CN202011188643.5A CN202011188643A CN112382894B CN 112382894 B CN112382894 B CN 112382894B CN 202011188643 A CN202011188643 A CN 202011188643A CN 112382894 B CN112382894 B CN 112382894B
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pin
connector
vehicle
pins
signal
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CN112382894A (en
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方明龙
杨新伟
吴关鑫
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Maiteng Internet Of Things Technology Co ltd
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Maiteng Internet Of Things Technology Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/665Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6691Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/665Structural association with built-in electrical component with built-in electronic circuit
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connection Or Junction Boxes (AREA)

Abstract

The utility model provides a vehicle debugging circuit and a method, which relates to the technical field of vehicle networking and can solve the problems of higher cost and incompatibility of the existing vehicle debugging circuit. The specific technical scheme is as follows: the circuit includes: the system comprises a first connector, a vehicle-mounted terminal BOX T-BOX, a second connector and a computer; wherein the vehicle and the T-BOX are connected through the first connector and the computer is connected to the vehicle and the T-BOX through the second connector, respectively; pins of the first connector comprise Controller Area Network (CAN) pins, the CAN pins are used for transmitting CAN signals of the vehicle, and the first pins of the second connector are connected with the CAN pins of the first connector through a DB9 wire harness; and the computer is used for acquiring the CAN signal of the vehicle through the first pin of the second connector and the CAN pin of the first connector. The invention is used for reducing the cost of the vehicle debugging circuit and improving the compatibility.

Description

Vehicle debugging circuit and method
Technical Field
The disclosure relates to the field of car networking, in particular to a vehicle debugging circuit and method.
Background
Vehicles such as automobiles in the internet of vehicles equipped with vehicle mounted terminal boxes (T-boxes) require vehicle commissioning in the development phase. The vehicle is usually commissioned using a bench and a common wiring harness. However, when the vehicle is debugged by using the rack and the general wire harness, the computer may be separated from a vehicle Controller Area Network (CAN), which causes inconvenience to the debugging of the vehicle.
In the prior art, an On-Board Diagnostic (OBD) harness is generally used to connect with a vehicle, so that a computer CAN access a CAN network of the vehicle to debug the vehicle. Fig. 1 is a block diagram of a vehicle debugging circuit provided in the prior art. As shown in fig. 1, the circuit includes: vehicle 101, computer 102, T-BOX103, and gantry 104. The vehicle 101 is connected with the computer 102 through an OBD (on-board diagnostics) wire harness, the T-BOX103 is connected with the rack 104 through a traditional wire harness, and the rack 104 is connected with the T-BOX103 through a serial port. The computer 102 CAN be connected to a vehicle CAN network through an OBD wire harness connection, and meanwhile, the T-BOX is debugged by connecting the computer 102 with the T-BOX through a traditional wire harness rack 104, the T-BOX103 and a serial port. Therefore, by using the vehicle debugging circuit described in fig. 1, the computer CAN access the vehicle CAN network to debug the vehicle.
However, the vehicle debugging circuit shown in fig. 1 needs to separately adopt an OBD harness to connect the vehicle with the computer, which increases the vehicle debugging cost, and the specifications of OBD interfaces of different vehicle manufacturers are different, so that the vehicle debugging circuit shown in fig. 1 cannot be compatible with vehicles of different manufacturers.
Disclosure of Invention
The embodiment of the disclosure provides a vehicle debugging circuit and a vehicle debugging method, which can solve the problems of high cost and incompatibility of the existing vehicle debugging circuit. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a vehicle commissioning circuit including:
the system comprises a first connector, a vehicle, a T-BOX, a second connector and a computer; wherein the vehicle and the T-BOX are connected through the first connector and the computer is connected to the vehicle and the T-BOX through the second connector, respectively;
the pins of the first connector comprise CAN pins, the CAN pins are used for transmitting CAN signals of the vehicle, and the first pins of the second connector are connected with the CAN pins of the first connector through a DB9 wire harness;
and the computer is used for acquiring the CAN signal of the vehicle through the first pin of the second connector and the CAN pin of the first connector.
The vehicle debugging circuit that this disclosed embodiment provided CAN be connected vehicle and computer through DB9 pencil for the computer CAN obtain the CAN signal of vehicle, thereby inserts the CAN network of vehicle, and DB9 pencil CAN be general and the cost is lower, therefore the vehicle debugging circuit cost that this disclosed embodiment provided is lower and CAN compatible different producers' vehicle.
In one embodiment, the first connector comprises a first male connector and a first female connector of the same specification, the first male connector is arranged on the vehicle, the first female connector is arranged on the T-BOX, and the first male connector and each corresponding pin of the first female connector are connected through a connecting wire;
the computer is used for acquiring CAN signals of the vehicle through the first pin of the second connector and the CAN pins of the first male connector and the first female connector.
In one embodiment, the second connector is a second female connector of the same format as the first female connector,
a first pin of the second female connector is connected with a CAN pin of the first connector through a DB9 wiring harness, and a second pin of the second female connector is connected with a third pin of the first female connector through a serial port;
the computer is used for sending a T-BOX debugging instruction to the T-BOX through the second pin so that the T-BOX is debugged after receiving the T-BOX debugging instruction.
In one embodiment, the pins of the first connector include a first CAN pin, a second CAN pin and a third CAN pin, the first CAN pin, the second CAN pin and the third CAN pin are used for transmitting CAN signals of the vehicle, the first pin of the second connector is connected with the first CAN pin of the first connector through a first DB9 wire harness, the first pin of the second connector is connected with the second CAN pin of the first connector through a second DB9 wire harness, and the first pin of the second connector is connected with the third CAN pin of the first connector through a third DB9 wire harness.
In one embodiment, the first CAN pin includes a high signal pin of a first CAN signal and a ground signal pin of a first CAN signal, the high signal pin of the first CAN signal and the ground signal pin of the first CAN signal being pin number 19 and pin number 39 of the first connector, respectively; the second CAN pin comprises a high signal pin of the second CAN signal and a ground signal pin of the second CAN signal, and the high signal pin of the second CAN signal and the ground signal pin of the second CAN signal are respectively pin number 38 and pin number 18 of the first connector; the third CAN pin comprises a high signal pin of the third CAN signal and a ground signal pin of the third CAN signal, and the high signal pin of the third CAN signal and the ground signal pin of the third CAN signal are a pin No. 37 and a pin No. 17 of the first connector respectively.
In one embodiment, the second connector is a 40 pin second female connector;
the first pins of the second female connector comprise a No. 2 pin, a No. 22 pin, a No. 3 pin, a No. 33 pin, a No. 4 pin and a No. 24 pin; the No. 2 pin and the No. 22 pin of the second female connector are connected with the No. 19 pin and the No. 39 pin of the first connector through the first DB9 wire harness; the No. 13 pin and the No. 33 pin of the second female connector are connected with the No. 38 pin and the No. 18 pin of the first connector through the second DB9 wire harness; no. 4 and No. 24 pins of the second female connector are connected with No. 37 and No. 17 pins of the first connector through the third DB9 wire harness.
In one embodiment, the second pins of the second female connector include pin 6 and pin 26, the third pins of the first female connector include pin 15 and pin 35, and pin 6 and pin 26 of the second female connector are respectively connected with pin 15 and pin 35 of the first female connector through serial ports.
According to a second aspect of the embodiments of the present disclosure, there is provided a vehicle debugging method applied to a vehicle debugging circuit, the circuit including:
the system comprises a first connector, a vehicle, a T-BOX, a second connector and a computer; wherein the vehicle and the T-BOX are connected through the first connector and the computer is connected to the vehicle and the T-BOX through the second connector, respectively;
the pins of the first connector comprise CAN pins, the CAN pins are used for transmitting CAN signals of the vehicle, and the first pins of the second connector are connected with the CAN pins of the first connector through a DB9 wire harness;
the method comprises the following steps: and acquiring the CAN signal of the vehicle through the first pin of the second connector and the CAN pin of the first connector.
In one embodiment, the first connector comprises a first male connector and a first female connector of the same specification, the first male connector is arranged on the vehicle, the first female connector is arranged on the T-BOX, and the first male connector and each corresponding pin of the first female connector are connected through a connecting wire;
the acquiring the CAN signal of the vehicle through the first pin of the second connector and the CAN pin of the first connector includes: and acquiring CAN signals of the vehicle through the first pin of the first connector of the second connector and the CAN pins of the first male connector and the first female connector.
In one embodiment, the second connector is a second female connector of the same format as the first female connector,
the first pin of the second female connector is connected with the CAN pin of the first connector through a DB9 wire harness, the second pin of the second female connector is connected with the third pin of the first female connector through a serial port,
the method comprises the following steps: and sending a T-BOX debugging instruction to the T-BOX through the second pin so that the T-BOX is debugged after receiving the T-BOX debugging instruction.
According to the circuit debugging method provided by the embodiment of the disclosure, the computer is connected and CAN be connected with the vehicle through the DB9 wire harness, so that the computer CAN acquire a CAN signal of the vehicle, and CAN be accessed into a CAN network of the vehicle to debug the vehicle, and the DB9 wire harness CAN be universal and has lower cost, so that the vehicle debugging method provided by the embodiment of the disclosure has lower cost and CAN be compatible with vehicles of different manufacturers.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a block diagram of a vehicle debug circuit provided by the prior art;
FIG. 2 is a first block diagram of a vehicle debug circuit provided by an embodiment of the present disclosure;
FIG. 3 is a second block diagram of a vehicle debug circuit provided by the embodiments of the present disclosure;
fig. 4 is a flowchart of a vehicle commissioning method provided by an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 2 is a first structural diagram of a vehicle debugging circuit provided in the embodiment of the present disclosure. As shown in fig. 2, the circuit includes:
a first connector 201, a vehicle 202, a T-BOX203, a second connector 204, and a computer 205; wherein, the vehicle 204 and the T-BOX203 are connected through a first connector 201, and the computer 205 is respectively connected with the vehicle 202 and the T-BOX203 through a second connector;
the pins of the first connector 201 comprise CAN pins, the CAN pins are used for transmitting CAN signals of the vehicle 202, and the first pin of the second connector 204 is connected with the CAN pins of the first connector through a DB9 wire harness;
the computer 205 is used for acquiring the CAN signal of the vehicle through the first pin of the second connector 204 and the CAN pin of the first connector, so as to access the CAN network of the vehicle.
Illustratively, as shown in fig. 2, the patch cord is provided with a DB9 interface and a serial port, the first pin of the second connector 204 is connected with the CAN pin of the first connector through a DB9 interface and the patch cord to connect the computer with the vehicle through a DB9 cord, and the second connector is connected with the patch cord and the T-BOX203 through a serial port to connect the computer with the T-BOX.
The vehicle debugging circuit that this disclosed embodiment provided CAN be connected vehicle and computer through DB9 pencil for the computer CAN obtain the CAN signal of vehicle, thereby inserts the CAN network of vehicle, and DB9 pencil CAN be general and the cost is lower, therefore the vehicle debugging circuit cost that this disclosed embodiment provided is lower and CAN compatible different producers' vehicle.
The following describes the vehicle debugging circuit provided in the embodiment of the present disclosure in further detail with reference to the embodiments of fig. 2 and 3. Fig. 3 is a second structural diagram of a vehicle debugging circuit provided in the embodiment of the present disclosure. Illustratively, as shown in fig. 3, the first connector 201 includes a first male connector 2011 and a first female connector 2012 which are of the same specification, the first male connector 2011 is disposed on the vehicle, the first female connector 2022 is disposed on the T-BOX, and the first male connector 2011 is connected with each corresponding pin of the first female connector 2012 by a connecting wire;
the computer is used for acquiring the CAN signal of the vehicle through the first pin of the second connector 204 and the CAN pins of the first male connector 2011 and the first female connector 2012.
Illustratively, the second connector 204 is a second female connector of the same format as the first female connector 2012.
The first pin of the second female connector 204 is connected to the CAN pin of the first connector through a DB9 harness, and the second pin of the second female connector is connected to the third pin of the first female connector 2012 through a serial port.
Illustratively, as shown in fig. 2 and 3, the first pin of the second female connector 204 is connected to the first male connector 2011 and the CAN pin of the first female connector 2012 of the patch harness through a DB9 interface, and the second pin of the second female connector 204 is connected to the third pin of the first female connector 2012 of the patch harness through a serial port.
The computer is used for sending a T-BOX debugging instruction to the T-BOX through the second pin so that the T-BOX is debugged after receiving the T-BOX debugging instruction.
The CAN pins of the first connector 201 include a first CAN pin, a second CAN pin and a third CAN pin, the first CAN pin, the second CAN pin and the third CAN pin are used for transmitting CAN signals of the vehicle, the first pin of the second connector 204 is connected with the first CAN pin of the first connector through a first DB9 wire harness, the first pin of the second connector is connected with the second CAN pin of the first connector through a second DB9 wire harness, and the first pin of the second connector is connected with the third CAN pin of the first connector through a third DB9 wire harness.
Illustratively, three DB9 interfaces are provided on the patch harness, the first pin of the second female connector 204 is connected with the patch harness through a first DB9 interface and the first CAN pins of the first male connector 2011 and the first female connector 2012, the first pin of the second female connector 204 is connected with the patch harness through a second DB9 interface and the second CAN pins of the male connector 2011 and the first female connector 2012, and the first pin of the second female connector 204 is connected with the patch harness through a third DB9 interface and the third CAN pins of the male connector 2011 and the first female connector 2012.
Illustratively, the first connector 201 is a 40-pin connector, i.e., the first male connector 2011 and the first female connector 2012 are 40-pin connectors of the same specification. For example, the first female connector may be of the type C-1318389-1. The first connector may also be a connector of another type, and this embodiment is not limited herein.
Illustratively, as shown in fig. 3, the first CAN pin includes a high signal pin of a first CAN signal (CAN1_ H) and a ground signal pin of a first CAN signal (CAN1_ L), which are respectively pin 19 and pin 39 of the first connector 201, i.e., pin 19 and pin 39 of the first male connector 2011 and the first female connector 2012; the second CAN pin includes a high signal pin (CAN2_ H) of the second CAN signal and a ground signal pin (CAN2_ L) of the second CAN signal, and the high signal pin of the second CAN signal and the ground signal pin of the second CAN signal are pin No. 38 and pin No. 18 of the first connector 201, that is, pin No. 38 and pin No. 18 of the first male connector 2011 and the first female connector 2012, respectively; the third CAN pin includes a high signal pin (CAN3_ H) of the third CAN signal and a ground signal pin (CAN3_ L) of the third CAN signal, and the high signal pin of the third CAN signal and the ground signal pin of the third CAN signal are pin 37 and pin 17 of the first connector 201, that is, pin 37 and pin 17 of the first male connector 2011 and the first female connector 2012, respectively.
Illustratively, the second connector is a 40-pin second female connector of the same specification as the first female connector;
the first pins of the second female connector 204 include pin No. 2, pin No. 22, pin No. 3, pin No. 33, and pin No. 4 and pin No. 24; the No. 2 pins and the No. 22 pins of the second female connector 204 are connected with the No. 19 pins and the No. 39 pins of the first connector 201 through the first DB9 interface and the adapter wiring harness; the No. 13 pin and the No. 33 pin of the second female connector 204 are connected with the No. 38 pin and the No. 18 pin of the first connector 201 through the second DB9 harness and the transit harness; pin No. 4 and pin No. 24 of the second female connector are connected with pin No. 37 and pin No. 17 of the first connector 201 through the third DB9 interface and the transit harness.
Illustratively, the second pins of the second female connector 204 include pin number 6 and pin number 26, the third pin of the first female connector 2012 includes pin number 15 and pin number 35, and the pin number 6 and pin number 26 of the second female connector 204 are connected to the pin number 15 and pin number 35 of the first female connector 2012 through a serial port and a patch cord, respectively.
The vehicle debugging circuit provided by the embodiment of the disclosure CAN connect a vehicle and a computer through the adapter wiring harness and the DB9 interface, so that the computer CAN acquire a CAN signal of the vehicle, thereby accessing a CAN network of the vehicle, and the computer CAN be connected with the adapter wiring harness and the T-BOX through a serial port to debug the T-BOX, and the DB9 interface and the adapter wiring harness CAN be general and have lower cost, so that the vehicle debugging circuit provided by the embodiment of the disclosure has lower cost and CAN be compatible with vehicles of different manufacturers, and the problem that a bench is needed to be used during debugging CAN be eliminated through the adapter wiring harness, and the vehicle CAN be conveniently debugged. Meanwhile, the switching wiring harness can be left on the vehicle, the function of the whole vehicle is not influenced when the vehicle is used by other people in non-debugging time, the wiring harness can be directly connected out when a developer needs to debug, extra operation is not needed, and the operation is convenient.
Fig. 4 is a flowchart of a vehicle commissioning method provided in an embodiment of the present disclosure, which is applied to the vehicle commissioning circuit provided in the embodiments of fig. 2 and fig. 3. As shown in fig. 4, the method includes:
s401, acquiring a CAN signal of the vehicle through a first pin of the second connector and a CAN pin of the first connector;
illustratively, as shown in fig. 2, the circuit includes: the system comprises a first connector, a vehicle, a T-BOX, a second connector and a computer; wherein the vehicle and the T-BOX are connected with the vehicle and the T-BOX respectively through the first connector and the second connector;
the pins of the first connector comprise CAN pins, the CAN pins are used for transmitting CAN signals of the vehicle, and the first pins of the second connector are connected with the CAN pins of the first connector through a DB9 interface and a switching harness; the computer CAN acquire the CAN signal of the vehicle through the first pin of the second connector and the CAN pin of the first connector.
As shown in fig. 3, the first connector includes a first male connector and a first female connector of the same specification, the first male connector is disposed on the vehicle, the first female connector is disposed on the T-BOX, and the first male connector and each corresponding pin of the first female connector are connected by a connection line;
specifically, the computer CAN acquire the CAN signal of the vehicle through the first pin of the first connector and the CAN pins of the first male connector and the first female connector.
S402, sending a T-BOX debugging instruction to the T-BOX through the second pin so that the T-BOX is debugged after receiving the T-BOX debugging instruction.
Illustratively, the second connector is a second female connector of the same format as the first female connector,
the first pin of the second female connector is connected with the CAN pin of the first connector through a DB9 interface and the switching harness, and the second pin of the second female connector is connected with the third pin of the first female connector through a serial port and the switching harness.
And the computer sends a T-BOX debugging instruction to the T-BOX through the second pin so that the T-BOX is debugged after receiving the T-BOX debugging instruction.
The T-BOX can be debugged, illustratively, on a computer by VECTOR with the development of a special tool m2mdiagnostic platform.
According to the circuit debugging method provided by the embodiment of the disclosure, the computer is connected and CAN be connected with the vehicle through the DB9 wire harness, so that the computer CAN acquire a CAN signal of the vehicle, and CAN be accessed into a CAN network of the vehicle to debug the vehicle, and the DB9 wire harness CAN be universal and has lower cost, so that the vehicle debugging method provided by the embodiment of the disclosure has lower cost and CAN be compatible with vehicles of different manufacturers.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (9)

1. A vehicle debug circuit, comprising:
the system comprises a first connector, a vehicle-mounted terminal BOX T-BOX, a second connector and a computer; wherein the vehicle and the T-BOX are connected through the first connector and the computer is connected to the vehicle and the T-BOX through the second connector, respectively;
pins of the first connector comprise Controller Area Network (CAN) pins, the CAN pins are used for transmitting CAN signals of the vehicle, and the first pins of the second connector are connected with the CAN pins of the first connector through a DB9 wire harness;
the computer is used for acquiring a CAN signal of the vehicle through a first pin of the second connector and a CAN pin of the first connector;
the first connector comprises a first male connector and a first female connector which are of the same specification, the first male connector is arranged on the vehicle, the first female connector is arranged on the T-BOX, and the first male connector and corresponding pins of the first female connector are connected through connecting wires;
the computer is used for acquiring CAN signals of the vehicle through the first pin of the second connector and the CAN pins of the first male connector and the first female connector.
2. The circuit of claim 1, wherein the second connector is a second female connector of the same size as the first female connector,
a first pin of the second female connector is connected with a CAN pin of the first connector through a DB9 wiring harness, and a second pin of the second female connector is connected with a third pin of the first female connector through a serial port;
the computer is used for sending a T-BOX debugging instruction to the T-BOX through the second pin so that the T-BOX is debugged after receiving the T-BOX debugging instruction.
3. The circuit of claim 1, wherein the pins of the first connector comprise a first CAN pin, a second CAN pin and a third CAN pin, the first CAN pin, the second CAN pin and the third CAN pin are used for transmitting CAN signals of the vehicle, the first pin of the second connector is connected with the first CAN pin of the first connector through a first DB9 wire harness, the first pin of the second connector is connected with the second CAN pin of the first connector through a second DB9 wire harness, and the first pin of the second connector is connected with the third CAN pin of the first connector through a third DB9 wire harness.
4. The circuit of claim 3, wherein the first connector is a 40-pin connector;
the first CAN pin comprises a high signal pin of a first CAN signal and a ground signal pin of the first CAN signal, and the high signal pin of the first CAN signal and the ground signal pin of the first CAN signal are a No. 19 pin and a No. 39 pin of the first connector respectively; the second CAN pin comprises a high signal pin of a second CAN signal and a ground signal pin of the second CAN signal, and the high signal pin of the second CAN signal and the ground signal pin of the second CAN signal are respectively a No. 38 pin and a No. 18 pin of the first connector; the third CAN pin comprises a high signal pin of a third CAN signal and a ground signal pin of the third CAN signal, and the high signal pin of the third CAN signal and the ground signal pin of the third CAN signal are respectively pin number 37 and pin number 17 of the first connector.
5. The circuit of claim 4, wherein the second connector is a 40 pin second female connector;
the first pins of the second female connector comprise a No. 2 pin, a No. 22 pin, a No. 3 pin, a No. 332 pin, a No. 4 pin and a No. 24 pin; the No. 2 pin and the No. 22 pin of the second female connector are connected with the No. 19 pin and the No. 39 pin of the first connector through the first DB9 wire harness; the No. 13 pin and the No. 33 pin of the second female connector are connected with the No. 38 pin and the No. 18 pin of the first connector through the second DB9 wire harness; no. 4 and 24 pins of the second female connector are connected with No. 37 and No. 17 pins of the first connector through the third DB9 wire harness.
6. The circuit of claim 5, wherein the second pins of the second female connector comprise pin 6 and pin 26, the third pin of the first female connector comprises pin 15 and pin 35, and the pin 6 and pin 26 of the second female connector are respectively connected with the pin 15 and pin 35 of the first female connector through serial ports.
7. A vehicle debugging method is characterized by being applied to a vehicle debugging circuit, and the circuit comprises the following components:
the system comprises a first connector, a vehicle, a T-BOX, a second connector and a computer; wherein the vehicle and the T-BOX are connected through the first connector and the computer is connected to the vehicle and the T-BOX through the second connector, respectively;
the pins of the first connector comprise CAN pins, the CAN pins are used for transmitting CAN signals of the vehicle, and the first pins of the second connector are connected with the CAN pins of the first connector through a DB9 wire harness;
the method comprises the following steps: acquiring a CAN signal of the vehicle through a first pin of the second connector and a CAN pin of the first connector;
the first connector comprises a first male connector and a first female connector which are of the same specification, the first male connector is arranged on the vehicle, the first female connector is arranged on the T-BOX, and the first male connector and corresponding pins of the first female connector are connected through connecting wires;
the acquiring the CAN signal of the vehicle through the first pin of the second connector and the CAN pin of the first connector includes:
and acquiring CAN signals of the vehicle through the first pin of the second connector and the CAN pins of the first male connector and the first female connector.
8. The method of claim 7, wherein the first connector comprises a first male connector and a first female connector of the same specification, the first male connector is disposed on the vehicle, the first female connector is disposed on the T-BOX, and the first male connector and CAN pins of the first female connector are connected by connecting wires;
the CAN signal of the vehicle is obtained through the first pin of the second connector and the CAN pin of the first connector: and acquiring CAN signals of the vehicle through the first pin of the second connector and the CAN pins of the first male connector and the first female connector.
9. The method of claim 8, wherein the second connector is a second female connector of the same format as the first female connector,
the first pin of the second female connector is connected with the CAN pin of the first connector through a DB9 wire harness, the second pin of the second female connector is connected with the third pin of the first female connector through a serial port,
the method comprises the following steps: and sending a T-BOX debugging instruction to the T-BOX through the second pin so that the T-BOX is debugged after receiving the T-BOX debugging instruction.
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