Device for detecting male head of OBD port of electric vehicle

Abstract

The invention discloses a device for detecting an OBD port male joint of an electric vehicle, the device comprises an OBD male joint detection line S2, a dial switch S3, a dial switch S4 and a DB9 female joint S1, pins 1-8 of the OBD male joint detection line S2 are respectively connected with eight interfaces of the dial switch S3, and the other eight interfaces of the dial switch S3 are connected in parallel and then connected with a pin 7 of the DB9 female joint S1. Pins 9-16 of the BD male head detection line S2 are respectively connected with eight interfaces of the dial switch S4, and the other eight interfaces of the dial switch S4 are connected in parallel and then connected with a pin 2 of the DB9 female head S1. By means of the scheme, the CANH or the CANL can be adjusted to any position, and the problem that the can array pin definition of the OBD port is non-standard is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and particularly relates to a device for detecting the male head of an OBD port of an electric vehicle. Background Art

[0002] Standard electric vehicles on the market all use CAN communication. The OBD interface is a diagnostic port for collecting and reading CAN communication. The interface has 18 pins, which are divided into 8 groups: 1 and 9, 2 and 10, 3 and 11, 4 and 12, 5 and 13, 6 and 14, 7 and 15, 8 - 16. Normally, 1, 2, 3, 4, 5, 6, 7, 8 are CANH, and 9, 10, 11, 12, 13, 14, 15, 16 are CANH.

[0003] Existing ODB acquisition harnesses are all fixed. Whichever path is needed is fixed. For some non - standard definitions, a new one needs to be made. Summary of the Invention

[0004] Embodiments of the present application are proposed to make up for the deficiencies of the prior art, and provide a device for detecting the male head of an OBD port of an electric vehicle to solve the problems existing in the prior art.

[0005] To solve the above - mentioned technical problems, the present invention provides the following technical solutions: A device for detecting the male head of an OBD port of an electric vehicle, including an OBD male - head detection line S2, a DIP switch S3, a DIP switch S4, and a DB9 female - head S1. The 1 - 8 pins of the OBD male - head detection line S2 are respectively connected to 8 interfaces of the DIP switch S3. The other 8 interfaces of the DIP switch S3 are connected in parallel and then connected to the 7th pin of the DB9 female - head S1. The 9 - 16 pins of the BD male - head detection line S2 are respectively connected to 8 interfaces of the DIP switch S4. The other 8 interfaces of the DIP switch S4 are connected in parallel and then connected to the 2nd pin of the DB9 female - head S1.

[0006] As a further technical solution of the present invention: The OBD male - head detection line S2 is an 18 - pin male - head detection line.

[0007] As a further technical solution of the present invention: The DIP switch S3 is an 8 - position DIP switch.

[0008] As a further technical solution of the present invention: The DIP switch S4 is an 8 - position DIP switch.

[0009] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: The present invention can adjust CANH or CANL to any position, solving the problem of non - standard CAN pin definitions of the OBD port. Brief Description of the Drawings

[0010] Figure 1 This is the circuit diagram of the present invention.

[0011] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0012] As Figure 1 shown, a device for detecting the male head of an electric vehicle OBD port includes an OBD male head detection line S2, a DIP switch S3, a DIP switch S4, and a DB9 female head S1. The 1-8 pins of the OBD male head detection line S2 are respectively connected to 8 interfaces of the DIP switch S3. The other 8 interfaces of the DIP switch S3 are connected in parallel and then connected to the 7th pin of the DB9 female head S1. The 9-16 pins of the BD male head detection line S2 are respectively connected to 8 interfaces of the DIP switch S4. The other 8 interfaces of the DIP switch S4 are connected in parallel and then connected to the 2nd pin of the DB9 female head S1.

[0013] The working principle is as follows: S2 is an 18-core OBD male head detection line. Two 8-position DIP switches (S3 and S4) are respectively welded at one end, and the other ends are all short-circuited. A wire is led out and welded to the 7th pin of DB9 (S1) as CANH for CAN communication. Then, two 8-position DIP switches and the 18-core ODB are respectively welded at one end, and the other ends are all short-circuited. A wire is led out and welded to the 2nd pin of DB9 as CANL for CAN communication. By toggling the DIP switch, CANH or CANL can be adjusted to any value, solving the problem of non-standard CAN pin definitions of the OBD port.

[0014] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

[0015] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment have been appropriately combined to form other embodiments that are easily understood by those skilled in the art.

Claims

1. A device for detecting the male connector of the OBD port of an electric vehicle, comprising an OBD male connector detection line S2, a dip switch S3, a dip switch S4 and a DB9 female connector S1, characterized in that: Pins 1-8 of the OBD male detection line S2 are respectively connected to the 8 interfaces of the dip switch S3, and the other 8 interfaces of the dip switch S3 are connected in parallel and then connected to pin 7 of the DB9 female connector S1. Pins 9-16 of the BD male detection line S2 are respectively connected to the 8 interfaces of the dip switch S4, and the other 8 interfaces of the dip switch S4 are connected in parallel and then connected to pin 2 of the DB9 female connector S1.

2. The device for detecting the male connector of the OBD port of an electric vehicle according to claim 1, characterized in that: The OBD male detection line S2 is an 18-core male detection line.

3. The device for detecting the male connector of the OBD port of an electric vehicle according to claim 1, characterized in that: The dip switch S3 is an 8-level dip switch.

4. The device for detecting the male connector of the OBD port of an electric vehicle according to claim 1, characterized in that: The dip switch S4 is an 8-level dip switch.

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