CN207799457U - A kind of automotive diagnostic system and automobile - Google Patents
A kind of automotive diagnostic system and automobile Download PDFInfo
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- CN207799457U CN207799457U CN201820144030.3U CN201820144030U CN207799457U CN 207799457 U CN207799457 U CN 207799457U CN 201820144030 U CN201820144030 U CN 201820144030U CN 207799457 U CN207799457 U CN 207799457U
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Abstract
A kind of automotive diagnostic system of the utility model offer and automobile, are related to Automobile Failure Diagnosis Technology field, automotive diagnostic system includes：Gateway controller；The OBD interfaces being connect with gateway controller by first line and the second circuit；Relay is provided in first line, and relay is also connect with the Parts Controller of automobile；It is in first state or the second state that gateway controller controls relay by first line；When relay is in first state, the circuit between OBD interfaces and Parts Controller is connected to, and diagnostic data transmission is directly carried out between OBD interfaces and Parts Controller；When relay is in the second state, the diagnostic data between OBD interfaces and Parts Controller is forwarded by the second circuit by gateway controller.The embodiment of the utility model is avoided obtains data in fault diagnosis by lead, also avoids OBD interfaces and is directly connect with all network segments of vehicle, improves vehicle Information Security, reduce the security risk of vehicle.
Description
Technical field
The utility model belongs to Automobile Failure Diagnosis Technology field, more particularly, to a kind of automotive diagnostic system and automobile.
Background technology
With the rapid development of automotive engineering, people have higher requirement to the safety and reliability of automobile.Automobile
Internal electric-controlled system fault can not only influence the normal operation of automobile, or even can cause safety accident.In order to ensure the peace of automobile
Accident Probability is reduced in controlled range by Quan Xing, and the realization of the diagnostic system of automobile electric control system is more and more important, vehicle
Carry diagnostic system (On-Board Diagnostic, abbreviation：OBD) interface is as diagnostic device and vehicle interactive diagnosis data
Channel, realization mechanism are particularly important.Traditional diagnosis interface is directly connected to all network segments of vehicle, diagnostic data and network communication
Data can directly be read by diagnosing interface, and the safety of vehicle data cannot be effectively ensured；What another was generally used examines
Slave interrupt interface is connected by gateway controller with vehicle network, and gateway controller forwards between diagnostic device and entire car controller
Diagnostic data, realization method ensures the safety of vehicle data, but stage, technical staff need to pass through in automobile research or after sale
Gage system obtains network communication data, destroys overall wire sheaves, security risk is caused to vehicle.
Utility model content
The utility model embodiment is designed to provide a kind of automotive diagnostic system and automobile, to solve the prior art
In can not be effectively ensured the safeties of vehicle data, and since technical staff by gage system obtains network communication data,
Vehicle is caused to there are problems that security risk.
To achieve the goals above, the utility model embodiment provides a kind of automotive diagnostic system, including：
Gateway controller；
Onboard diagnostic system OBD interfaces, the gateway controller pass through first line and the second circuit and OBD interfaces respectively
It is connected；
Wherein, relay is provided in the first line, and the relay is also connected with the Parts Controller of automobile
It connects；
It is in first state or the second state that the gateway controller controls the relay by the first line；Its
Described in relay when being in first state, the circuit between the OBD interfaces and Parts Controller is connected to, the OBD interfaces
Diagnostic data transmission is directly carried out between Parts Controller；When the relay is in the second state, the OBD interfaces and institute
The diagnostic data between Parts Controller is stated, by second circuit, is forwarded by gateway controller.
Wherein, the output end of the gateway controller is connected by the control terminal of rigid line and the relay of the first line
It connects；When data of the gateway controller by second line receiver to characterization diagnostic mode, the gateway controller
It controls the relay and first state is switched to by the second state, when the gateway controller is arrived by second line receiver
When characterizing the data of non-diagnostic pattern, the gateway controller controls the relay and switches to the second state by first state.
Wherein, the Parts Controller includes at least one of instrument controller and car body controller.
Wherein, the relay includes the first relay and the second relay, wherein the first of first relay
The first CAN communication end at end, the first end of second relay, the instrument controller and the gateway controller passes through
CAN bus connects, and the second end of the second end of first relay and second relay connects with the OBD interfaces respectively
It connects；When first relay and second relay are in first state, the first end of first relay and institute
The second end connection of the first relay is stated, the first end of second relay is connected to the second end of second relay.
Wherein, the relay further includes third relay and the 4th relay, the first end of the third relay, institute
The the second CAN communication end for stating the first end of the 4th relay, the car body controller and the gateway controller passes through CAN bus
The second end of connection, the second end of the third relay and the 4th relay is connect with the OBD interfaces respectively, works as institute
State third relay and when the 4th relay is in first state, the first end and the third of the third relay after
The second end of electric appliance is connected to, and the first end of the 4th relay is connected to the second end of the 4th relay.
Wherein, also direct between the Parts Controller and the OBD interfaces when the relay is in first state
Carry out the transmission of communication data.
Wherein, further include engine controller, the engine controller passes through CAN bus and the gateway controller
Third CAN communication end connects.
Wherein, the diagnostic data between the OBD interfaces and the engine controller is led to by second circuit
Cross gateway controller forwarding.
Wherein, logical between the OBD interfaces and the engine controller when the relay is in first state
Letter data is forwarded by second circuit by gateway controller.
The utility model embodiment additionally provides a kind of automobile, including automotive diagnostic system as described above.
The above-mentioned technical proposal of the utility model at least has the advantages that：
The utility model embodiment between gateway controller and OBD interfaces by connecting the First Line for including relay
Road, to realize when carrying out fault diagnosis, the Parts Controller of automobile is directly connect with OBD interfaces, makes to connect with the OBD
The diagnostic device of mouth connection can directly read each network segment diagnostic data of vehicle and communication data respectively, ensure that vehicle data
Safety, while enabling a technician to simply and easily obtain vehicle network communication data and diagnostic data, it avoids and passes through
Gage system obtains data, and leading to vehicle, there are security risks.
Description of the drawings
Fig. 1 is the schematic diagram of the automotive diagnostic system of the utility model embodiment.
Reference sign：
1- gateway controllers, 2-OBD interfaces, 3- instrument controllers, 4- engine controllers, 5- car body controllers, 6- are supplied
Power supply, the first relays of K1-, the second relays of K2-, K3- third relays, the 4th relays of K4-.
Specific implementation mode
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
The utility model embodiment is directed to can not be effectively ensured the safety of vehicle data and due to skill in the prior art
Art personnel obtain network communication data by gage system, and vehicle is caused to there are problems that security risk, provide a kind of automobile and examine
Disconnected system and automobile, to read channel for technical staff's reserved data, convenient for the failure problems of vehicle development and stage after sale
Investigation, and provide safeguard safely for vehicle.
As shown in Figure 1, an embodiment of the utility model provides a kind of automotive diagnostic system, including：
Gateway controller 1；
Onboard diagnostic system OBD interfaces 2, the gateway controller 1 is connect by first line and the second circuit with OBD respectively
Mouth 2 is connected；
Wherein, relay is provided in the first line, and the relay is also connected with the Parts Controller of automobile
It connects；
It is in first state or the second state that the gateway controller 1 controls the relay by the first line；
When the wherein described relay is in first state, the circuit between the OBD interfaces 2 and Parts Controller is connected to, and the OBD connects
Diagnostic data transmission is directly carried out between mouth 2 and Parts Controller；When the relay is in the second state, the OBD interfaces 2
It is forwarded by gateway controller 1 by second circuit with the diagnostic data between the Parts Controller.
Above-described embodiment of the utility model is realized by the way that the relay is arranged in diagnostic mode and non-diagnostic mould
Under formula two states, by different circuits between the Parts Controller and the OBD interfaces 2 transmission data.Wherein, when
When in non-diagnostic pattern, at all data that the gateway controller 1 sends the Parts Controller received
Reason, to obtain diagnostic data, the OBD interfaces 2 are sent to by second circuit by the diagnostic data.When in examining
When disconnected pattern, the gateway controller 1 controls the relay and is in first state, to realize each Parts Controller
Directly carry out data transmission respectively between the OBD interfaces 2, ensure that the safety of vehicle data.Specifically, transmitting at this time
Data include communication data and diagnostic data, the diagnostic device being connect with the OBD interfaces 2 is according to the communication data and institute
State diagnostic data failure judgement Producing reason.
Here, it should be noted that the first state of the relay is that the movable contact of relay is connected to normally opened contact,
I.e.：Coil in the relay is powered, and movable contact is attracted to the normally opened contact and is connected to；Second shape of the relay
State is that the movable contact of relay is connected to normally-closed contact, i.e.,：Coil in the relay is not powered on, movable contact and normally-closed contact
Connection.
Wherein, the output end of the gateway controller 1 is connected by the control terminal of rigid line and the relay of the first line
It connects；When data of the gateway controller 1 by second line receiver to characterization diagnostic mode, the gateway controller
The 1 control relay switches to first state by the second state, when the gateway controller 1 passes through second line receiver
When to the data for characterizing non-diagnostic pattern, the gateway controller 1 controls the relay and switches to the second shape by first state
State.
In order to further ensure that the safety of vehicle data, during technical staff carries out fault diagnosis to automobile,
Diagnostic device is connected to the OBD interfaces 2 first, then, the gateway controller 1 and the diagnostic device pass through described the
Two circuits carry out safety verification, and after the success of the two safety verification, the diagnostic device sends the data of characterization diagnostic mode extremely
The gateway controller 1, the control terminal of its output end of the control output significant level of the gateway controller 1 to the relay,
The relay is set to be in first state, the movable contact is connected to the normally opened contact；When the two safety verification failure or
After verification time-out, the gateway controller 1 controls its output end and exports inactive level to the control terminal of the relay, makes described
Relay is in the second state, and the movable contact is connected to the normally-closed contact.Wherein, the control terminal of the relay is relay
The second end of the coil of device.
Specifically, the Parts Controller includes at least one of instrument controller 3 and car body controller 5.Wherein, institute
It states instrument controller 3 to connect with two relays in the first line, in the car body controller 5 and the first line
Another two relay connection.
Wherein, the first end of the first relay K1, the first end of the second relay K2, the instrument controller
3 are connected with the first CAN communication end of the gateway controller 1 by CAN bus, the second end of the first relay K1 and institute
The second end for stating the second relay K2 is connect with the OBD interfaces 2 respectively；As the first relay K1 and second relay
When device K2 is in first state, the first end of the first relay K1 is connected to the second end of the first relay K1, institute
The first end for stating the second relay K2 is connected to the second end of the second relay K2.To realize in diagnostic mode, institute
State instrument controller 3 connect with the OBD interfaces 2 by the first relay K1 and the second relay K2 and directly into
Row data transmission.Wherein, the first end is the normally opened contact of relay, and the second end is the movable contact of relay.
Wherein, the first end, the first end of the 4th relay K4 of the third relay K3, the car body controller
5 are connected with the second CAN communication end of the gateway controller 1 by CAN bus, the second end of the third relay K3 and institute
The second end for stating the 4th relay K4 is connect with the OBD interfaces 2 respectively, as the third relay K3 and the 4th relay
When device K4 is in first state, the first end of the third relay K3 is connected to the second end of the third relay K3, institute
The first end for stating the 4th relay K4 is connected to the second end of the 4th relay K4.To realize in diagnostic mode, institute
State instrument controller 3 connect with the OBD interfaces 2 by the third relay K3 and the 4th relay K4 and directly into
Row data transmission, wherein the first end is the normally opened contact of relay, and the second end is the movable contact of relay.
Further, when the relay is in first state, between the Parts Controller and the OBD interfaces 2
Also directly carry out the transmission of communication data.So that the diagnostic device being connect with the OBD interfaces 2 is according to the communication data and institute
It states diagnostic data and fault diagnosis is carried out to the Parts Controller, determine failure cause.
It is direct by the OBD interfaces 2 to realize diagnostic device by the way that the relay is arranged for the utility model embodiment
The communication data and diagnostic data for obtaining the Parts Controller, avoid technical staff and obtain network communication by gage system
Data destroy overall wire sheaves, security risk are caused to vehicle；Meanwhile the diagnosis interface for also solving the prior art is directly connected to
All network segments of vehicle, the problem of leading to not that the safety of vehicle data is effectively ensured.
Wherein, the automotive diagnostic system of the utility model embodiment further includes engine controller 4, the engine control
Device 4 is connect by CAN bus with the third CAN communication end of the gateway controller 1.In non-diagnostic pattern, the OBD interfaces
Diagnostic data between 2 and the engine controller 4 is forwarded by second circuit by gateway controller 1.It is examining
When disconnected pattern, i.e., when the relay of the described first line is in first state, the OBD interfaces 2 and the engine controller 4
Between communication data and diagnostic data, pass through second circuit, forwarded by gateway controller 1.
In summary, when the automotive diagnostic system is in non-diagnostic pattern, the gateway controller 1 is total by CAN
Line receives the diagnostic data and communication that the instrument controller 3, the engine controller 4 and the car body controller 5 are sent
Data, and the data received are handled, obtain the instrument controller 3, the engine controller 4 and the vehicle body
The diagnostic data that controller 5 is sent, and the OBD interfaces 2 are sent to by second circuit；When the automotive diagnostic system
When in diagnostic mode, the gateway controller 1 controls its output end and exports significant level to relay, controls the relay
In first state so that the instrument controller 3 and the car body controller 5 are connect with the OBD interfaces 2 respectively, and straight
Connect transmission diagnostic data and communication data；The engine controller 4 by the gateway controller 1 and second circuit with
The OBD interfaces 2 connect, and directly transmit diagnostic data and communication data.
Specifically, as shown in Figure 1, the line of the first end of the coil of the first relay K1, the second relay K2
The first end of circle, the third relay K3 coil first end and the 4th relay K4 coil first end difference
It is connect with power supply 6；The gateway controller 1 includes two output ends, wherein the first output end and first relay
The second end of the coil of K1 is connected with the second end of the coil of the second relay K2, second output terminal and the third relay
The second end of the coil of device K3 is connected with the second end of the coil of the 4th relay K4.When the gateway controller 1 receives
When to the data for characterizing diagnostic mode, the gateway controller 1 controls first output end and second output terminal output
Low level makes the coil of each relay be powered, so that the relay is in first that movable contact is connected to normally opened contact
State.
Here, it should be noted that when the gateway controller 1 receives the data of characterization instrument diagnostic mode, institute
It states gateway controller 1 and controls the first output end output low level so that the first relay K1 and second relay
Device K2 switches to first state；Likewise, when the gateway controller 1 receives the data of characterization vehicle body diagnostic mode, institute
It states gateway controller 1 and controls the second output terminal output low level so that the third relay K3 and the 4th relay
Device K4 switches to first state；When the gateway controller 1 receives the data of characterization engine diagnostic pattern, the gateway
Controller 1 controls third CAN communication end and is connected to second circuit.
The utility model embodiment also provides a kind of automobile, including automotive diagnostic system as described above.
Correspondingly, the automotive diagnostic system due to the utility model embodiment is applied to automobile, the utility model is real
It applies example and additionally provides a kind of automotive diagnostic system, wherein realize that embodiment is suitable for the vapour described in above-mentioned automotive diagnostic system
In the embodiment of vehicle, it can also reach identical technique effect.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from principle described in the utility model, several improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (10)
1. a kind of automotive diagnostic system, which is characterized in that including：
Gateway controller；
Onboard diagnostic system OBD interfaces, the gateway controller are connected by first line and the second circuit with OBD interfaces respectively
It connects；
Wherein, relay is provided in the first line, and the relay is also connected with the Parts Controller of automobile；
It is in first state or the second state that the gateway controller controls the relay by the first line；Wherein institute
When stating relay and being in first state, the circuit between the OBD interfaces and Parts Controller is connected to, the OBD interfaces and portion
Diagnostic data transmission is directly carried out between part controller；When the relay is in the second state, the OBD interfaces and the portion
Diagnostic data between part controller is forwarded by second circuit by gateway controller.
2. automotive diagnostic system according to claim 1, which is characterized in that the output end of the gateway controller passes through hard
Line is connect with the control terminal of the relay of the first line；When the gateway controller passes through second line receiver to table
When levying the data of diagnostic mode, the gateway controller controls the relay and switches to first state by the second state, works as institute
When stating data of the gateway controller by second line receiver to the non-diagnostic pattern of characterization, the gateway controller controls institute
It states relay and the second state is switched to by first state.
3. automotive diagnostic system according to claim 1, which is characterized in that the Parts Controller includes instrument controller
At least one of with car body controller.
4. automotive diagnostic system according to claim 3, which is characterized in that the relay includes the first relay and the
Two relays, wherein the first end of first relay, the first end of second relay, the instrument controller and
First CAN communication end of the gateway controller is connected by CAN bus, the second end of first relay and described second
The second end of relay is connect with the OBD interfaces respectively；When first relay and second relay are in first
When state, the first end of first relay is connected to the second end of first relay, and the of second relay
One end is connected to the second end of second relay.
5. automotive diagnostic system according to claim 4, which is characterized in that the relay further include third relay and
4th relay, the first end of the third relay, the first end of the 4th relay, the car body controller and described
Second CAN communication end of gateway controller is connected by CAN bus, the second end of the third relay and the 4th relay
The second end of device is connect with the OBD interfaces respectively, when the third relay and the 4th relay are in first state
When, the first end of the third relay is connected to the second end of the third relay, the first end of the 4th relay
It is connected to the second end of the 4th relay.
6. automotive diagnostic system according to claim 1, which is characterized in that when the relay is in first state,
The transmission of communication data is also directly carried out between the Parts Controller and the OBD interfaces.
7. automotive diagnostic system according to claim 1, which is characterized in that further include engine controller, it is described to start
Machine controller is connect by CAN bus with the third CAN communication end of the gateway controller.
8. automotive diagnostic system according to claim 7, which is characterized in that the OBD interfaces are controlled with the engine
Diagnostic data between device is forwarded by second circuit by gateway controller.
9. automotive diagnostic system according to claim 7, which is characterized in that when the relay is in first state,
Communication data between the OBD interfaces and the engine controller is turned by second circuit by gateway controller
Hair.
10. a kind of automobile, which is characterized in that including such as claim 1-9 any one of them automotive diagnostic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820144030.3U CN207799457U (en) | 2018-01-29 | 2018-01-29 | A kind of automotive diagnostic system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820144030.3U CN207799457U (en) | 2018-01-29 | 2018-01-29 | A kind of automotive diagnostic system and automobile |
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| Publication Number | Publication Date |
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| CN207799457U true CN207799457U (en) | 2018-08-31 |
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ID=63269767
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820144030.3U Active CN207799457U (en) | 2018-01-29 | 2018-01-29 | A kind of automotive diagnostic system and automobile |
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| CN (1) | CN207799457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108052095A (en) * | 2018-01-29 | 2018-05-18 | 北京汽车研究总院有限公司 | A kind of automotive diagnostic system and automobile |
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2018
- 2018-01-29 CN CN201820144030.3U patent/CN207799457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108052095A (en) * | 2018-01-29 | 2018-05-18 | 北京汽车研究总院有限公司 | A kind of automotive diagnostic system and automobile |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200907 Address after: 100130 Zhaofeng Town, Shunyi District, Beijing Zhaofeng industrial base Tongxin Road No. 1 Patentee after: BAIC GROUP ORV Co.,Ltd. Address before: 101300, 99, Shuanghe Avenue, Renhe Town, Beijing, Shunyi District Patentee before: BEIJING AUTOMOBILE RESEARCH GENERAL INSTITUTE Co.,Ltd. |
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| TR01 | Transfer of patent right |