TW201410048A - Vehicle network communication device and the method thereof - Google Patents

Abstract

The present invention relates to a vehicle network communication device and the method thereof. It applies the tool automatic diagnostics system (On Board Diagnostics, OBD) on existing vehicle system superior compatibility and reliability, and uses diagnostic command to provide operating requirements for vehicle computer and vehicle device for achieving purpose of controlling the vehicle computer and the vehicle device.

Description

Vehicle network communication device and method thereof

The invention provides a vehicle body device and a method thereof, which can test and control the characteristics of a body computer/body component through the original vehicle diagnostic command, and are used for achieving a single, plural or continuous logic condition of the body computer/body component. Control intermediary device and method.

With the increasing popularity of the automobile industry, various types of demand for automobiles have also been achieved due to economies of scale, and corresponding products of various types have been responded to. In addition to being a means of transport, cars are also a temporary place to live, and they are part of private property; therefore, various needs should be taken into account in operations, in the environment, in safety, in comfort, in convenience, and in preservation.

Whether it is the operation, environment or safety part, it is closely related to every zero main part of the car body, whether it is a small oxygen sensor or a huge drive shaft, which has a considerable impact on the operation, environment or driver safety. . Because the car is a large-scale energy rotation device, if there is an error in the conversion process, it often causes irreparable regrets. Since the 1980s, various automobile manufacturers have begun to be fully functional in the vehicles they produce. Control/diagnostic systems to ensure safety and environmental responsibility.

In terms of convenience and security, in addition to ease of use, maintenance is more important. Therefore, the dashboard must have a "fault warning light" to quickly alert the driver to the failure of a particular vehicle system. Maintenance requirements are provided in addition to the original factory In addition to the chip key, drivers need to be more reassured, such as alarms, anti-theft locks, global satellite positioning systems, etc.

However, when the vehicle is shipped from the factory, the identity codes of the various types of devices in the controller area network (CAN) are fixed. If the external device is added to the Controller Area Network (CAN), There are difficulties in it, and it can only receive status information of various devices and cannot be operated.

On the current market, when installing external devices, such as when trying to operate body components, it will imitate the body computer/other body components to transmit/broadcast forged packets, and let the body components in the Controller Area Network (CAN) Receive and execute the specified action. Such behavior is not rigorous and is prone to unexpected risks.

As shown in Figure 1, when the original unlocking device (68) presses the lock button and the Body Control Module (BCM) (66) receives it, it issues a lock command with its own identity code (for example, ID00000005) (for example, 01) ) to the Controller Area Network (CAN) (60), and the four sets of Door Control Module (DCM) (62, 63, 64, 65) receive the Body Control Module (BCM) (66) issuing a lock command to activate the door central control motor to lock the door in succession; or, when the indoor central control switch of the left front door (62) issues a lock (for example, 01) or an unlock (for example, 02) signal, Will also send out its own identity code (for example, ID00000006) to lock Relative control is achieved (for example, 01) or unlocking (for example, 02) signals to the Controller Area Network (CAN) (60).

However, the current method of installing the device is to control the door to be locked or unlocked by the external device (67) and the external device (61), and the external device (61) is disguised as a body control module (Body Control Module, BCM) (66) sends the command to the Controller Area Network (CAN) (60) to achieve the operational purpose. However, the car device cannot distinguish the signal sending device, so there is a risk of operation, conflict and priority, and the behavior is not recognized by the car manufacturer.

Moreover, in the above various needs of the installation work, the technical personnel need to have considerable professional knowledge and technical experience to be carried out; not to mention how much autonomy and understanding the average driver can have in his own needs.

In addition to the above problems, how to reduce the cost of installation and equipment is also a big problem. However, under the existing specifications of the vehicle, there are various requirements for the body components, and how to reduce the difficulty and time of installation is also difficult.

In order to solve the above problems, the present invention provides a vehicle network communication device and a method thereof, which are mainly used for a vehicle diagnostic command of a vehicle body component that is not intended to control a vehicle body component, and an intermediary device and method for controlling a body computer/component.

Accordingly, the main object of the present invention is to provide a vehicle network communication device and method thereof, which have a combination of an anti-theft system and an on-board automatic diagnostic device. The effect.

Still another object of the present invention is to provide a vehicle network communication device and method thereof, which simplifies the manufacturing cost of a plurality of circuit systems and reduces the supply cost.

Still another object of the present invention is to provide a vehicle network communication device and method thereof, which provide an effect of greatly reducing the installation time of the antitheft system.

Still another object of the present invention is to provide a vehicle network communication device and method thereof, which can simplify a product of an original anti-theft system and an individual controller of an in-vehicle automatic diagnostic device into a group of controllers.

Still another object of the present invention is to provide a vehicle network communication apparatus and method thereof, which use a vehicle diagnostic command to execute a defined behavior script to ensure reliability of body component signals in a controller area network (CAN).

Still another object of the present invention is to provide a vehicle network communication device and method thereof, which solves the problem of interoperability between an external device and a Controller Area Network (CAN).

Still another object of the present invention is to provide a vehicle network communication apparatus and method thereof, which can easily define a personal characteristic light using a vehicle diagnostic command to execute a defined behavior script.

Still another object of the present invention is to provide a vehicle network communication device and method thereof, which use a vehicle diagnostic command to execute a defined behavior script, which can provide driving The steering wheel actively lifts the steering wheel steering service.

Still another object of the present invention is to provide a vehicle network communication device and method thereof, which can be directly controlled by a vehicle body computer to achieve a luggage movement control that cannot be achieved by a camouflage command.

Still another object of the present invention is to provide a vehicle network communication device and a method thereof, which can execute a defined behavior script by using a vehicle diagnosis command, and can have the convenience of actively unlocking a door lock after actively locking a door and driving a parking gear.

Still another object of the present invention is to provide a vehicle network communication apparatus and method thereof, which can simultaneously provide a plurality of body component control behaviors according to a customizable behavior script.

Still another object of the present invention is to provide a vehicle network communication device and a method thereof, which are capable of being barrier-free to any type of vehicle installation by using a controller area network (CAN).

A further object of the present invention is to provide a vehicle network communication device and a method thereof, which can simplify the material control of a depot/maintenance plant by combining various devices.

Still another object of the present invention is to provide a vehicle network communication device and a method thereof, which are less expensive in space and have a lower material storage cost.

In order to achieve the above object, the main technical means used in the present invention is achieved by the following technical solutions. The present invention is a vehicle network communication device, which is a device for controlling a vehicle body component by using a vehicle diagnostic command, and includes a command conversion module, a connection module and a communication module, wherein: the command conversion module has a substrate and at least one electronic component, wherein the substrate is used to carry the electronic component, and the electronic component comprises a processing unit, a storage unit and at least one passive unit electrically connected to each other by the substrate, the storage unit has There is only one database and at least one logic script; wherein the connection module has a physical layer circuit, the physical layer circuit is disposed on one side of the substrate, and is electrically connected to the substrate; the communication module has a communication interface The communication interface is disposed on one side of the substrate and electrically connected to the substrate. The device is electrically connected to the vehicle network of the vehicle by the physical layer circuit, and the command conversion module obtains power and the vehicle. a network connection, the external device can obtain a communication link with the command conversion module through the communication interface, and then convert the communication content into a logic script or a diagnosis command through the command conversion module, and the logic script or the diagnosis command is further The physical layer circuit transmits to the body computer located in the vehicle network to execute the logic script or the diagnostic command.

The object of the present invention and solving the technical problems thereof can be further achieved by the following technical measures.

In the foregoing vehicle network communication device, the database includes an instruction corresponding data, a status data, a transmission data, and a reception data.

The foregoing vehicle network communication device, wherein the logic script includes at least one operating condition and at least one standby diagnostic command.

The foregoing vehicle network communication device, wherein the physical layer circuit conforms to an On Board Diagnostics (OBD) electrical connection specification.

The foregoing vehicle network communication device, wherein the communication interface can be wired One or a combination of bonding or wireless connections.

The invention relates to a vehicle network communication method, which is a method for controlling a body component by using a vehicle diagnosis command, which comprises the following steps: Step 1: electrically connecting one physical layer circuit of a connection module to a vehicle network of a vehicle Step 2: using the power provided by the vehicle network to electrically conduct a command conversion module and a communication module via the physical layer circuit; Step 3: The command conversion module uses the physical layer circuit to connect the vehicle network to detect the body computer And the network packet of the body component; step 4: the processing unit of the instruction conversion module parses the network packet, and then finds the data corresponding to the instruction unit of the storage unit of the instruction conversion module; step 5: the external device passes the The communication interface transmits at least one logic command to the command conversion module to be converted into at least one logic script or a diagnosis command; Step 6: the logic script or the diagnostic command is transmitted from the physical layer circuit to a body computer located in the vehicle network or The body component completes the operation of the logic command.

The object of the present invention and solving the technical problems thereof can be further achieved by the following technical measures.

In the foregoing vehicle network communication method, the logic script may be stored after step 5, and when the command conversion module receives a network packet condition in the vehicle network that has the operating condition description corresponding to the logic script, the instruction The conversion module issues the standby diagnostic command again.

In the foregoing method for vehicle network communication, the external device may be an anti-theft unlocking device.

In the foregoing vehicle network communication method, the parsing network packet of step 4 is to obtain control data of the body computer output, network coding of the body component, and status code of the body component.

Compared with the prior art, the invention has the following effects: (1) a single device achieves more than two types of auto parts functions; (2) a plurality of control effects are achieved by a set of controllers; (3) by means of material simplification, effective Reduce production costs; (4) It is easier to store and install due to the combination of multiple devices; (5) It can be used in today's related equipment according to the specifications of existing interfaces; (6) It can be improved through existing body network diagnostic commands. The reliability of network transmission.

In order to make the objects, features and functions of the present invention more obvious, the following is a preferred embodiment of the present invention: as shown in Figures 2 to 6, a vehicle network communication device (1) of the present invention The main implementation of the method. Please refer to the figures 3 and 4 first, the third figure is the appearance of the protective cover of the present invention, and the fourth figure is the entity having the function of the invention; the invention comprises a command conversion module (10), a connection Module (20) and a communication module (30).

Referring to FIG. 4 again, the command conversion module (10) has a substrate (11) and at least one electronic component (12), wherein the substrate (11) is used to carry the electronic component (12) and the electronic device The component (12) includes a processing unit (121), a storage unit (122), and at least one passive unit (123) electrically connected to each other by the substrate (11); and referring to FIG. 6, the storage unit ( 122) stored There is only one database (1221) and at least one logic script (1222).

In detail, the substrate (11) is usually a circuit board. For example, the substrate is a printed circuit board having a single layer or a plurality of layers. Further, the substrate (11) may also be a wire according to requirements. Frame, a circuit film (Polyimide), BT circuit board or various wafer carrier boards. A circuit (not shown) is formed inside the substrate (11), and can be used as an electrical transmission interface. Further, the processing unit (121) and the storage unit (122) can be formed by wire bonding or flip chip bonding technology. The passive unit (123) is electrically connected to the substrate (11). The processing unit (121) refers to a microprocessor that can execute a complicated computer program, and the storage unit (122) refers to a non-volatile memory, which stores data even if the power supply is interrupted. Will not disappear, after re-powering, you can read the memory of the memory data; the passive unit (123) is a passive component (Passive components).

Specifically, the database (1221) includes instruction corresponding data, status data, transmission data, and reception data, wherein the corresponding data provides device diagnostic commands corresponding to the body component, and the status data provides network coding and status of the corresponding body component. The diagnostic data and the transmission data record are sequentially outputted diagnostic commands, and the received data is obtained by the body component and the body computer transmitted on the vehicle network. The logic script (1222) is to pass at least one standby diagnostic command (12222) to the body network when the packet transmitted on the body network is set to at least one operating condition (12221) in accordance with the operating condition (12221). A continuous logical behavior statement that can be run in a single, plural or continuous body network.

Please refer to FIG. 3 that the connection module (20) and the communication module (30) are exposed in this embodiment to facilitate connection with other devices. Referring to FIG. 4, the connection module (20) has a physical layer circuit (21) disposed on one side of the substrate (11) and electrically connected to the substrate (11). connection. The communication module (31) has a communication interface (31) disposed on one side of the substrate (11) and electrically connected to the substrate (11).

In addition, the physical layer circuit (21) is electrically connected to the body network according to the On Board Diagnostics (OBD) and the Controller Area Network (CAN), and may be a connection plug or The electrical connection line and the like; wherein the diagnostic command of the On Board Diagnostics (OBD) is composed of ISO14229 and ISO11898 defined by the manufacturer, and the timing control of the execution of the instruction is still the body control module (Body Control Module). , BCM), the security of the Controller Area Network (CAN) can be ensured; in contrast, it is more effective to add an external device to add the line or device to change the security of the original design. The body network is the Controller Area Network (CAN). The communication interface (31) may be one or a combination of wired or wireless connections, and the communication may be analog or digital communication, wherein the analog communication includes Amplitude Modulation (AM), single sideband (Single Sideband) , SSB), Frequency Modulation (FM), and Phase Modulation (PM).

Next, please refer to FIG. 2, which is a vehicle network communication of the present invention. The method of obtaining a vehicle body component by using a vehicle diagnostic command includes the following steps: Step 1: electrically connecting one physical layer circuit (21) of one connection module (20) to a vehicle of the vehicle (40) Network (41) (step 1:101); step 2: using the power provided by the vehicle network (41) to electrically conduct a command conversion module (10) and a communication module (30) via the physical layer circuit (21) (Step 2: 102); Step 3: The command conversion module (10) uses the physical layer circuit (21) to connect the vehicle network (41) to detect the network of the body computer (42) and the body component (43) Packet (step 3: 103); step 4: the processing unit (121) of the instruction conversion module (10) parses the network packet, and then finds the database of the storage unit (122) of the instruction conversion module (10) ( 1221) compliant instruction corresponding data (step 4: 104); step 5: the external device (50) transmits at least one logic command (51) via the communication interface (30) to the instruction conversion module (10) to convert to at least one Logic script (1222) or a diagnostic command (1223) (step 5-1: 105); step 6: the logic script (1222) or the diagnostic command (1223) is transmitted from the physical layer circuit (21) to Vehicle network (41) within the vehicle body computer (42) or body member (43) to complete the command logic (51) of the operation (Step 6: 106).

Specifically, referring to FIG. 6, the external device (50) may be an anti-theft unlocking device, and the external device (50) issues an unlockable logic command (51) (which may be a designated digital key). The communication interface (30) is used to obtain a communication link with the command conversion module (10), and the unlocked content converted by the command conversion module (10) is a diagnostic command (1223), and the diagnostic command (1223) is further The layer circuit (21) transmits to the body computer (42) located in the vehicle network (41) to execute the diagnostic command (1223), thereby disarming the vehicle.

Furthermore, the parsing network packet of step 4 is obtained by obtaining the control data outputted by the body computer (42), the network code of the body component (43), and the state code of the body component (43), and then recorded in the database (1221). The data is transmitted, and the data corresponding to the instruction of the database (1221) is found, so that the logic command (51) provided by the external device (50) can be converted and used for different vehicles.

Preferably, as shown in Fig. 5, a step 5-2 (1051) is added between steps 5-1 (105) and 6 (106) of Fig. 2. The step 5-2 (1051) stores the logic script (1222), and the command conversion module (10) receives the network in the vehicle network (41) having the operating condition (12221) according to the logic script (1222). The command conversion module (10) reissues the standby diagnostic command (12222) when the condition of the packet is encapsulated.

The following is a detailed description of the operation of the present invention by taking a preferred embodiment of a vehicle network communication device and method thereof according to the present invention as follows.

Referring first to Figure 5, the basic operational flow of the present invention electrically connected to the vehicle (40) is step 1 (101), step 2 (102), step 3 (103) and step 4 (104); At this point, the present invention has been able to convert external requirements for vehicle operation.

Refer to Figure 6 and Step 5-1 (105) to indicate when the external device (50) The transmission includes locking the door when the vehicle speed exceeds 20 kilometers per hour, turning the headlights on and off 2 times when the vehicle speed exceeds 100 kilometers per hour, and releasing the door lock when the vehicle is in the parking state. The group logic command (51) to the communication interface (31), through which the processing unit (121) of the instruction conversion module (10) converts the three sets of logic commands (51) into three according to the instruction corresponding data of the database (1221). The group contains a logic script (1222) of the operating condition (12221) and the standby diagnostic command (12222).

Next, referring to step 5-2 (1051) of FIG. 5, three sets of logic scripts (1222) are stored in the storage unit (122), and the command conversion module (10) receives the vehicle from the connection module (20). The network (41) has a network packet condition described in the operating condition (12221) in which the vehicle speed exceeds 20 kilometers per hour, the vehicle speed exceeds 100 kilometers per hour, or the vehicle is in the starting state (12221). The conversion module (10) then issues a corresponding standby diagnostic command (12222).

Finally, please refer to step 6 (106) of Figure 5, when the vehicle speed exceeds 20 kilometers per hour, and step 5-2 (1051) locks the door's standby diagnostic command (12222) from the physical layer circuit (21). The operation is transmitted to the body computer (42) located in the vehicle network (41) to complete the logic command (51) to lock the door.

Or, if the vehicle speed exceeds 100 kilometers per hour, the step 5-2 (1051) transmits the standby diagnostic command (12222) of the headlights to blink 2 times from the physical layer circuit (21) to the vehicle network (41). Inside the headlights The body component (43) completes the logic command (51) to turn the headlights on and flash twice.

Moreover, the vehicle gear in the launched state is the parking condition, and the step 5-2 (1051) transmits the standby diagnosis command (12222) for releasing the door lock from the physical layer circuit (21) to the vehicle network (41). The body computer (42) within the completion of the logic command (51) will unlock the door.

Therefore, the effect of the invention is different from the traditional anti-theft device or the vehicle diagnostic device, which is the first in the application of the anti-theft device or the vehicle diagnostic device, and meets the requirements of the invention patent, and submits an application according to law.

However, it should be reiterated that the above description is only a preferred embodiment of the present invention, and the equivalent changes of the specification, the patent scope or the drawings of the present invention are still within the technical scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

1‧‧‧Vehicle network communication device

10‧‧‧Command Conversion Module

11‧‧‧Substrate

12‧‧‧Electronic components

121‧‧‧Processing unit

122‧‧‧storage unit

1221‧‧‧Database

1222‧‧‧Logical script

12221‧‧‧ Operating conditions

12222‧‧‧ Standby Diagnostic Order

1223‧‧‧Diagnostic order

123‧‧‧ Passive unit

20‧‧‧Connecting module

21‧‧‧ physical layer circuit

30‧‧‧Communication module

31‧‧‧Communication interface

40‧‧‧ Vehicles

41‧‧‧Vehicle network

42‧‧‧ body computer

43‧‧‧ body components

50‧‧‧External equipment

51‧‧‧Logical order

60‧‧‧ Controller Area Network

61‧‧‧Additional internal devices

62‧‧‧Door computer

63‧‧‧Door computer

64‧‧‧Door computer

65‧‧‧Door computer

66‧‧‧ body computer

67‧‧‧plus external devices

68‧‧‧Original unlocking equipment

101‧‧‧Step 1

102‧‧‧Step 2

103‧‧‧Step 3

104‧‧‧Step 4

105‧‧‧Step 5-1

1051‧‧‧Step 5-2

106‧‧‧Step 6

Figure 1 is a schematic view of the prior art of the present invention.

Figure 2 is a flow chart showing the first method of the preferred embodiment of the present invention.

Figure 3 is a schematic view of the apparatus of the preferred embodiment of the present invention.

Figure 4 is a cross-sectional view of the apparatus of the preferred embodiment of the present invention.

Figure 5 is a flow chart showing a second method of the preferred embodiment of the present invention.

Figure 6 is a block diagram of a preferred embodiment of the present invention.

101‧‧‧Step 1

102‧‧‧Step 2

103‧‧‧Step 3

104‧‧‧Step 4

105‧‧‧Step 5-1

1051‧‧‧Step 5-2

106‧‧‧Step 6

Claims (9)

A vehicle network communication device (1) is a device for controlling a body component by using a vehicle diagnostic command, and includes a command conversion module (10), a connection module (20) and a communication module (30). Wherein: the command conversion module (10) has a substrate (11) and at least one electronic component (12), wherein the substrate (11) is used to carry the electronic component (12), and the electronic component (12) is included A processing unit (121), a storage unit (122), and at least one passive unit (123) are electrically connected to each other by the substrate (11), and the storage unit (122) has only one database (1221) and At least one logic script (1222); wherein the connection module (20) has a physical layer circuit (21), the physical layer circuit (21) is disposed on one side of the substrate (11), and the substrate (11) The communication module (30) has a communication interface (31) disposed on one side of the substrate (11) and electrically connected to the substrate (11); The electrical connection between the physical layer circuit (21) and the vehicle network (41) of the vehicle (40), the command conversion module (10) obtains power and vehicle network connection, and the external device (50) The communication interface (30) is used to obtain a communication link with the command conversion module (10), and then the communication module is converted into a logic script (1222) or a diagnosis command (1223) via the command conversion module (10). The script (1222) or the diagnostic command (1223) is further transmitted from the physical layer circuit (21) to the body computer (42) located in the vehicle network (41) to execute the logic script (1222) or the diagnostic command (1223). . According to the vehicle network communication device described in item 1 of the patent application scope, the database (1221) package Contains instruction-corresponding data, status data, transmitted data, and received data. According to the vehicle network communication device of claim 1, the logic script (1222) includes at least one operating condition (12221) and at least one standby diagnostic command (12222). According to the vehicle network communication device described in claim 1, the physical layer circuit (21) conforms to the On Board Diagnostics (OBD) electrical connection specification. According to the vehicle network communication device of claim 1, the communication interface (31) may be one of a wired connection or a wireless connection or a combination thereof. A vehicle network communication method is a method for controlling a body component by using a vehicle diagnosis command, which comprises the following steps: Step 1: electrically connecting one physical layer circuit (21) of a connection module (20) to a vehicle ( 40) vehicle network (41); step 2: using the power provided by the vehicle network (41) to electrically conduct a command conversion module (10) and a communication module (30) via the physical layer circuit (21); Step 3: The command conversion module (10) uses the physical layer circuit (21) to connect the vehicle network (41) to detect the network packet of the body computer (42) and the body component (43); Step 4: The command conversion The processing unit (121) of the module (10) parses the network packet, and then finds the data corresponding to the instruction database (1221) of the storage unit (122) of the instruction conversion module (10); step 5: external device ( 50) transmitting at least one logic command (51) via the communication interface (30) to the instruction conversion module (10) converting to at least one logic script (1222) or a diagnostic command (1223); Step 6: the logic script ( 1222) or the diagnostic command (1223) is powered from the physical layer The road (21) is transmitted to the body computer (42) or body component (43) located in the vehicle network (41) to complete the operation of the logic command (51). According to the vehicle network communication method described in claim 6, wherein the logic script (1222) may be stored after the step 5, and the instruction conversion module (10) receives the compliance in the vehicle network (41). The operating condition (12221) of the logic script (1222) describes the network packet condition, and the command conversion module (10) issues the standby diagnostic command (12222). According to the vehicle network communication method described in claim 6, the external device (50) may be an anti-theft unlocking device. According to the vehicle network communication method described in claim 6, wherein the parsing network packet of step 4 is to obtain the control data outputted by the body computer (42), the network code of the body component (43), and the body component (43). State code.