[go: up one dir, main page]

CN101327769B - A connection system for automotive electrical appliances - Google Patents

A connection system for automotive electrical appliances Download PDF

Info

Publication number
CN101327769B
CN101327769B CN2008101175421A CN200810117542A CN101327769B CN 101327769 B CN101327769 B CN 101327769B CN 2008101175421 A CN2008101175421 A CN 2008101175421A CN 200810117542 A CN200810117542 A CN 200810117542A CN 101327769 B CN101327769 B CN 101327769B
Authority
CN
China
Prior art keywords
network cable
backbone network
digital signal
power
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN2008101175421A
Other languages
Chinese (zh)
Other versions
CN101327769A (en
Inventor
杨殿阁
连小珉
张新丰
陆良
薛雯
罗禹贡
李克强
郑四发
王建强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
Original Assignee
Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsinghua University filed Critical Tsinghua University
Priority to CN2008101175421A priority Critical patent/CN101327769B/en
Publication of CN101327769A publication Critical patent/CN101327769A/en
Application granted granted Critical
Publication of CN101327769B publication Critical patent/CN101327769B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

The present invention relates to a connecting system of electrical apparatuses of vehicle, and belongs to the technological field of electronic control of the vehicle. The connecting system comprises a backbone net wire, a local net wire which is used for connecting the electrical apparatuses of the vehicle and the backbone net wire, a power net wire which is used for providing power for the electrical apparatuses of the vehicle, a central coordinator which is used for coordinating and controlling the electrical apparatuses of the vehicle, and a central microprocessor which is used for displaying the status information and the failure information of the electrical apparatuses of the vehicle towards the vehicle driver. Compared with the connecting system of electrical apparatuses of the vehicle in the prior art, the connecting system greatly improves the degree of informationization of modern vehicles, and improves the capacity of information sharing and coordinated control. More importantly, the structure simplifies the wiring harness of the vehicle and reduces the production costs.

Description

A kind of connected system of car electrics
Technical field
The present invention relates to a kind of connected system of car electrics, belong to the auto electronic control technology field.
Background technology
Along with the continuous development of automotive electronic technology, the value volume and range of product of the electrical controller on the car is on the increase, and the electric system of automobile becomes increasingly complex.
The information that exchanges between the car electrics is more and more, need the mechanism of co-ordination also more and more, and system requirements is more and more reliable, and simultaneously, the cost requirement of producing and making is more and more lower.Therefore the design of modern automobile electric system is faced with great challenge.Automobile is done as a whole, needs the coordination of allomeric function, but along with the increasing of electrical equipment, the co-ordination relation between becomes and becomes increasingly complex mutually.Often need between the electrical equipment to carry out logic operation or signal transmission by the lead line, so whether the wire harness of modern automobile is complicated, length surpasses several kilometers, uses to surpass 200~300 connector.
Present automobile electric appliance system has adopted the method for In-vehicle networking, such as the instrumentation bus system, modular body control system or the like, controller local internet network (hereinafter to be referred as the CAN bus) bus or vehicle local internet network (hereinafter to be referred as the LIN bus) bussing technique have also been used, to simplify the design of automobile electric appliance system, but at present in the automobile electric appliance system based on CAN network or LIN network, one, do not adopt the means of network fully as information communication, the connection of automobile electric appliance system, control and information processing etc. are more complicated all, and the relation of backbone network and local area network is indeterminate; Two, do not have proper electric power networks, promptly the electric energy of car load is supplied with and is not passed through system-level design, and the automotive wire bundle line is not reduced.
Summary of the invention
The objective of the invention is to propose a kind of connected system of car electrics, make mutual being connected in logic and standard more physically of electrical equipment on the automobile, the design of automobile electric appliance system is more simple, and function is abundanter.
The connected system of the car electrics that the present invention proposes comprises:
Key netting twine is the key line in the car electrics connected system;
A plurality of lan lines, be used to make the electrical equipment that has the interconnected network bus interface of local to be connected with key netting twine, lan line links to each other with key netting twine with the backbone network line interface by lan line interface, gateway respectively successively, links to each other with the electric power netting twine by the electric network line interface simultaneously;
The electric power netting twine is used to make for car electrics provides the power supply of electric energy link to each other with car electrics, and power supply links to each other with the electric power netting twine by power interface.
Central coordinator is used for car electrics is carried out co-operative control, and central coordinator links to each other with key netting twine by the backbone network line interface;
Central authorities' microcomputer is used for status information and failure message to automobile driver display automobile electrical equipment, and central microcomputer links to each other with key netting twine by the backbone network line interface, links to each other with the electric power netting twine by the electric network line interface simultaneously;
A plurality of controller local internet network bus electrical equipment link to each other with key netting twine by the backbone network line interface, link to each other with the electric power netting twine by the electric network line interface simultaneously
A plurality of local internet network bus electrical equipment link to each other with lan line by the lan line interface.
In the above-mentioned connected system, the structure of key netting twine is: in plastic wrapper, three wires and a Shielded Twisted Pair that contains a plurality of ports are set, three wires wherein link to each other with three terminals in the backbone network line interface respectively, link to each other with two terminals of adjacent in the backbone network line interface after per two ports of Shielded Twisted Pair link to each other, the screen layer of Shielded Twisted Pair links to each other with ground wire in three wires again.
In the above-mentioned connected system, the structure of lan line is: in plastic wrapper, three wires, power power-supply line and power power-supply ground wire are set, above-mentioned five wires link to each other with five terminals in the lan line interface respectively, and power power-supply line wherein links to each other by two terminals in the electric network line interface respectively with the power power-supply ground wire.
In the above-mentioned connected system, the structure of electric power netting twine is: in plastic wrapper, many power power-supply lines and a power power-supply ground wire are set, power power-supply ground wire wherein links to each other with all electric network line interfaces, many power power-supply lines link to each other with terminal in the corresponding electric network line interface respectively, link to each other with power supply simultaneously.
Gateway in the above-mentioned connected system comprises:
Voltage stabilizing module is used for carrying out voltage transitions behind 12 volts of voltages of backbone network line interface acquisition, and for microprocessor provides 5 volts of voltages, an end of Voltage stabilizing module links to each other with the backbone network line interface, and the other end links to each other with microprocessor;
Backbone network line interface circuit is used for obtaining backbone network signal of communication H1 from the backbone network line interface, and this signal of communication is converted to the digital signal S1 that microprocessor can be discerned, and the digital signal S2 of microprocessor is converted to backbone network signal of communication H2;
The lan line interface circuit is used for obtaining local area network communication signal L1 from the lan line interface, and this signal of communication is converted to the digital signal S3 that microprocessor can be discerned, and the digital signal S4 of microprocessor is converted to local area network communication signal L2;
Microprocessor, be used for receiving digital signals S1, and according to controller local internet network bus protocol and local internet bus protocol, digital signal S1 is encoded, convert digital signal S4 to, receiving digital signals S3, and according to controller local internet network bus protocol and local internet bus protocol, with digital signal S3 coding, convert digital signal S2 to.
Backbone network line interface circuit in the gateway of connected system, by level transferring chip (U3), common mode inhibition device (U4), Zener diode (D1 and D2) and electric capacity (C1~C5) form, wherein after electric capacity (C1) and Zener diode (D1) parallel connection, one end links to each other with signal H1, and the other end links to each other with ground; After electric capacity (C2) and Zener diode (D2) parallel connection, an end links to each other with signal H2, and the other end links to each other with ground; Signal H1 links to each other with the input end of common mode suppressing unit (U4) respectively with H2, the mouth of common mode inhibition device (U4) links to each other with the input end of level transferring chip (U1), one end of electric capacity (C3) links to each other with the mouth of common mode suppressing unit (U4), and the other end links to each other with ground; One end of electric capacity (C4) links to each other with another mouth of common mode suppressing unit (U4), and the other end of electric capacity (C4) links to each other with ground; Electric capacity (C5) is connected between VCC voltage and the ground, and the mouth of level transferring chip (U1) links to each other with S2 with signal S1.
Lan line interface circuit in the gateway of connected system, by voltage transitions chip (U1), current-limiting resistance (R1 and R2), anti-reverse diode (D3) is formed, wherein an end of current-limiting resistance (R2) joins with local area network signal L1 and L2, the other end and anti-reverse diode (D3) join, and the other end of anti-reverse diode (D3) links to each other with the 12V power supply; One end of current-limiting resistance (R1) links to each other with the 12V power supply, the other end links to each other with voltage transitions chip (U1), voltage transitions chip (U1) respectively with digital signal S3, S4, local area network signal L1, L2 link to each other, electric capacity (C6) end links to each other with voltage transitions chip (U1), and the other end links to each other with ground.
In the above-mentioned connected system, central coordinator comprises:
The backbone network line interface is used to receive the signal on the key netting twine, and this output signal is sent to communication interface circuit;
Power module of voltage regulation after being used for obtaining 12 volts of voltages from above-mentioned backbone network line interface, carries out voltage transitions, exports 5 volts of voltages, for backbone network line interface circuit and central process unit provide power supply;
Backbone network line interface circuit is used for obtaining backbone network signal of communication H1 from the backbone network line interface, and this signal of communication is converted to the digital signal S1 that microprocessor can be discerned, and the digital signal S2 of microprocessor is converted to backbone network signal of communication H2;
Central process unit, be used to read the signal S1 of above-mentioned backbone network line interface circuit, the signal that reads is classified and logic determines according to the automobile bus agreement, according to vehicle-mounted bus protocol above-mentioned logic determines result is encoded, obtain digital signal S2, and digital signal S2 is sent to backbone network line interface circuit.
The connected system of the car electrics that the present invention proposes makes the interconnected relationship between the car electrics become clearer and more definite, and control and information exchange are more abundant.Because the existence of backbone network makes and can carry out the sufficient information exchange between the car load electrical equipment, make that the co-operative control between the car load electrical equipment gets the at high speed realization; Because the existence of local area network, make electrical equipment in the subrange set up contact between mutually and do not disturb the information exchange car load scope in that the interior information exchange of local in other words subsystem is not subjected to the interference of car load information; The existence of electric network has solved the supply problem of electric energy, and makes automobile electric appliance system can realize the effective management to power supply.Under such electrical system architecture design, automobile electric appliance system connects used lead and has significantly reduced.Central coordinator and vehicle-mounted microcomputer make the control of automobile electric appliance system separate with the control of electrical equipment itself respectively as the center of co-operative control and the center of information processing, also make chaufeur can understand the operation conditions of automobile electric appliance system fully simultaneously.So electrical equipment connected system of the present invention, compare with existing car electrics connected system, promoted the level of informatization of modern automobile greatly, improved the ability of information sharing and Collaborative Control, the most important thing is, the structure of utilizing the present invention to propose can be simplified the automotive wire bundle design greatly, reduces cost.
Description of drawings
Fig. 1 is a car electrics connected system scheme drawing of the present invention.
Fig. 2 is the structural representation of key netting twine in the connected system of the present invention.
Fig. 3 is the structural representation of lan line in the connected system of the present invention.
Fig. 4 is the structural representation of electric power netting twine in the connected system of the present invention.
Fig. 5 is the circuit block diagram of gateway in the connected system of the present invention.
Fig. 6 is the schematic circuit diagram of the backbone network line interface in gateway and the combinator.
The schematic circuit diagram of the lan line interface in Fig. 7 gateway of the present invention.
Fig. 8 is the circuit block diagram of central coordinator in the connected system of the present invention.
11 is key netting twines among Fig. 1~Fig. 8, the 12nd, and lan line, the 13rd, electric power netting twine, the 14th, backbone network line interface, the 15th, lan line interface, the 16th, electric network line interface, the 17th, power interface, the 21st, electric wire, the 22nd, Shielded Twisted Pair, the 23rd, backbone network line interface terminal, the 24th, the branch line of key netting twine, the 25th, key netting twine plastic wrapper, the 26th, U type clamp, the 31st, electric wire, the 32nd, the power power-supply lead, the 33rd, electric network line interface terminal, the 34th, lan line Interface Terminal, the 35th, lan line branch line, the plastic wrapper of 36 lan lines, the 37th, U type clamp, the 38th, the power power-supply ground wire, 41 is the power power-supply line, the 42nd, the power power-supply ground wire, 43 for being electric network line interface terminal, the 44th, and electric power netting twine plastic wrapper, the 45th, U type clamp.
The specific embodiment
The connected system of the car electrics that the present invention proposes, its structure comprises as shown in Figure 1:
Key netting twine 11 is the key line in the car electrics connected system;
A plurality of lan lines 12, be used to make the electrical equipment that has the interconnected network bus interface of local to be connected with key netting twine, lan line links to each other with key netting twine 11 with backbone network line interface 14 by lan line interface 15, gateway respectively successively, links to each other with electric power netting twine 13 by electric network line interface 16 simultaneously;
Electric power netting twine 13 is used to make for car electrics provides the power supply of electric energy link to each other with car electrics, and power supply links to each other with electric power netting twine 13 by power interface 16.
Central coordinator is used for car electrics is carried out co-operative control, and central coordinator links to each other 11 by backbone network line interface 14 with key netting twine;
Central authorities' microcomputer is used for status information and failure message to automobile driver display automobile electrical equipment, and central microcomputer links to each other with key netting twine 11 by backbone network line interface 14, links to each other 13 by electric network line interface 16 with the electric power netting twine simultaneously;
A plurality of controller local internet network bus electrical equipment link to each other with key netting twine 11 by backbone network line interface 14, link to each other with electric power netting twine 13 by electric network line interface 16 simultaneously
A plurality of local internet network bus electrical equipment link to each other with lan line 12 by lan line interface 15.
The structure of the key netting twine in the above-mentioned connected system as shown in Figure 2, in plastic wrapper 25, three wires 21 and a Shielded Twisted Pair 22 that contains a plurality of ports are set, the branch line 24 of three wires wherein by U type clamp 26 and key netting twine links to each other with three terminals 23 in the backbone network line interface 14 respectively, after linking to each other, per two ports of Shielded Twisted Pair 22 link to each other with two terminals of adjacent 23 in the backbone network line interface 14 again, the screen layer of Shielded Twisted Pair 22 links to each other with ground wire in three wires, shown in the dotted line of 22 ends of Shielded Twisted Pair among Fig. 2 and backbone network line interface 14 joints.
The structure of the lan line in the above-mentioned connected system, as shown in Figure 3, in plastic wrapper 36, three wires 31, power power-supply line 32 and power power-supply ground wire 38 are set, above-mentioned five wires link to each other with five terminals 34 in the lan line interface by the branch line 35 of U type clamp 37 and lan line respectively, and power power-supply line 32 wherein links to each other by two terminals 33 in the electric network line interface respectively with power power-supply ground wire 38.
The structure of the electric power netting twine in the above-mentioned connected system, as shown in Figure 4, in plastic wrapper 44, many power power-supply lines 41 and a power power-supply ground wire 42 are set, power power-supply ground wire 42 wherein links to each other with all electric network line interfaces 16, many power power-supply lines 41 link to each other with terminal 43 in the corresponding electric network line interface 16 respectively, link to each other with power supply simultaneously, and the bonded assembly method also is to pass through the branch line of U type clamp 45 and electric power netting twine respectively.
In above several netting twines, key netting twine wherein, lead adopts the AWG specification, and sectional area is 0.5mm 2, Shielded Twisted Pair adopts the Shielded Twisted Pair of stipulating in the SAE J1939 standard, lead internal diameter 0.8mm 2, cable size 8.5mm, insulated wire diameter 2.5mm, shield effectiveness m Ω/m.In the lan line, lead adopts the AWG specification, and sectional area is 1.25mm 2In the electric power netting twine, lead adopts the AWG specification, and sectional area is 10mm 2
The structure of the gateway in the above-mentioned connected system comprises as shown in Figure 5:
Voltage stabilizing module is used for carrying out voltage transitions behind 12 volts of voltages of backbone network line interface acquisition, and for microprocessor provides 5 volts of voltages, an end of Voltage stabilizing module links to each other with the backbone network line interface, and the other end links to each other with microprocessor.The used chip model of this Voltage stabilizing module is LT1121, is produced by U.S. Linear Tech;
Backbone network line interface circuit is used for obtaining backbone network signal of communication H1 from the backbone network line interface, and this signal of communication is converted to the digital signal S1 that microprocessor can be discerned, and the digital signal S2 of microprocessor is converted to backbone network signal of communication H2.The circuit diagram of backbone network line interface circuit as shown in Figure 6, by level transferring chip (U3), common mode inhibition device (U4), Zener diode (D1 and D2) and electric capacity (C1~C5) form, wherein after electric capacity (C1) and Zener diode (D1) parallel connection, one end links to each other with signal H1, and the other end links to each other with ground; After electric capacity (C2) and Zener diode (D2) parallel connection, an end links to each other with signal H2, and the other end links to each other with ground; Signal H1 links to each other with the input end of common mode suppressing unit (U4) respectively with H2, the mouth of common mode inhibition device (U4) links to each other with the input end of level transferring chip (U3), one end of electric capacity (C3) links to each other with the mouth of common mode suppressing unit (U4), and the other end links to each other with ground; One end of electric capacity (C4) links to each other with another mouth of common mode suppressing unit (U4), and the other end of electric capacity (C4) links to each other with ground; Electric capacity (C5) is connected between VCC voltage and the ground, and the mouth of level transferring chip (U1) links to each other with S2 with signal S1.Level transferring chip U3, model is PCA82C250, PHILIPS Co. produces, common mode inhibition device U4, model is ZJYS, Japanese TDK company produces; Zener diode D1 and D2 model are P6KE6.8A, and Chinese milky way semiconductor company produces, and C1~C5 is a conventional ceramic electric capacity, and wherein C1~C4 is 100pF, and C5 is 0.1uF;
The lan line interface circuit is used for obtaining local area network communication signal L1 from the lan line interface, and this signal of communication is converted to the digital signal S3 that microprocessor can be discerned, and the digital signal S4 of microprocessor is converted to local area network communication signal L2.The circuit diagram of lan line interface circuit as shown in Figure 7, by voltage transitions chip (U1), current-limiting resistance (R1 and R2), anti-reverse diode (D3) is formed, wherein an end of current-limiting resistance (R2) joins with local area network signal L1 and L2, the other end and anti-reverse diode (D3) join, and the other end of anti-reverse diode (D3) links to each other with the 12V power supply; One end of current-limiting resistance (R1) links to each other with the 12V power supply, the other end links to each other with voltage transitions chip (U1), voltage transitions chip (U1) respectively with digital signal S3, S4, local area network signal L1, L2 link to each other, electric capacity (C6) end links to each other with voltage transitions chip (U1), and the other end links to each other with ground.Level transferring chip U1 model MC33399 flies Si Kaer company by the U.S. and produces, and anti-reverse diode D3 is a general-purpose diode, and C6 is a conventional ceramic electric capacity, and size is 0.1uF.
Microprocessor, be used for receiving digital signals S1, and according to controller local internet network bus protocol and local internet bus protocol, digital signal S1 is encoded, convert digital signal S4 to, receiving digital signals S3, and according to controller local internet network bus protocol and local internet bus protocol, with digital signal S3 coding, convert digital signal S2 to.The microprocessor model is MC68HC908GZ16, flies Si Kaer company by the U.S. and produces.
In the above-mentioned connected system, the circuit block diagram of central coordinator comprises as shown in Figure 8:
The backbone network line interface is used to receive the signal on the key netting twine, and this output signal is sent to communication interface circuit;
Power module of voltage regulation after being used for obtaining 12 volts of voltages from above-mentioned backbone network line interface, carries out voltage transitions, exports 5 volts of voltages, for backbone network line interface circuit and central process unit provide power supply;
Backbone network line interface circuit is used for obtaining backbone network signal of communication H1 from the backbone network line interface, and this signal of communication is converted to the digital signal S1 that microprocessor can be discerned, and the digital signal S2 of microprocessor is converted to backbone network signal of communication H2.The circuit diagram of backbone network line interface circuit is identical with backbone network line interface circuit in the above-mentioned gateway, also as shown in Figure 6,
Central process unit, be used to read the signal S1 of above-mentioned backbone network line interface circuit, the signal that reads is classified and logic determines according to the automobile bus agreement, according to vehicle-mounted bus protocol above-mentioned logic determines result is encoded, obtain digital signal S2, and digital signal S2 is sent to backbone network line interface circuit.The central process unit model is MC68HC908GZ16, flies Si Kaer company by the U.S. and produces;
Central authorities' microcomputer, its model is HL720, is produced by Beijing China Digit of grand century.

Claims (6)

1.一种汽车电器的连接系统,其特征在于,包括:1. A connection system for automotive electrical appliances, characterized in that it comprises: 骨干网线,为汽车电器连接系统中的骨干线;The backbone network cable is the backbone line in the automotive electrical connection system; 多个局域网线,用于使带有局域互联络总线接口的电器与骨干网线相连接,局域网线分别依次通过局域网线接口、网关和骨干网线接口与骨干网线相连,同时通过电力网线接口与电力网线相连,其中所述的网关包括:稳压模块,用于从骨干网线接口获得12伏电压后,进行电压转换,为微处理器提供5伏电压,稳压模块的一端与骨干网线接口相连,另一端与微处理器相连;骨干网线接口电路,用于从骨干网线接口获取骨干网通信信号H1,并将该通信信号H1转换为微处理器能够识别的数字信号S1,将微处理器的数字信号S2转换为骨干网通信信号H2,所述的骨干网线接口电路由电平转换芯片U3、共模抑制器U4、齐纳二极管D1和D2和电容C1~C5组成,其中电容C1和齐纳二极管D1并联后,一端与信号H1相连,另一端与地相连;电容C2和齐纳二极管D2并联后,一端与信号H2相连,另一端与地相连;信号H1和H2分别与共模抑制器U4的输入端相连,共模抑制器U4的输出端与电平转换芯片U1的输入端相连,电容C3的一端与共模抑制器U4的输出端相连,另一端与地相连;电容C4的一端与共模抑制器U4的另一输出端相连,电容C4的另一端与地相连,电容C5连接在VCC电压和地之间,电平转换芯片U1的输出端与信号S1和S2相连;局域网线接口电路,用于从局域网线接口获取局域网通信信号L1,并将该通信信号L1转换为微处理器能够识别的数字信号S3,将微处理器的数字信号S4转换为局域网通信信号L2;微处理器,用于接收数字信号S1,并根据控制器局域互联网络总线协议和局域互联网络总线协议,将数字信号S1编码,转换成数字信号S4,接收数字信号S3,并根据控制器局域互联网络总线协议和局域互联网络总线协议,将数字信号S3编码,转换成数字信号S2;A plurality of LAN cables are used to connect electrical appliances with LAN interconnection bus interfaces to backbone network cables. The network cable is connected, wherein the gateway includes: a voltage stabilizing module, which is used for voltage conversion after obtaining 12 volts from the backbone network cable interface, and provides 5 volts for the microprocessor. One end of the voltage stabilizing module is connected to the backbone network cable interface, The other end is connected to the microprocessor; the backbone network cable interface circuit is used to obtain the backbone network communication signal H1 from the backbone network cable interface, and convert the communication signal H1 into a digital signal S1 that the microprocessor can recognize, and convert the digital signal of the microprocessor The signal S2 is converted into the backbone network communication signal H2, and the backbone network cable interface circuit is composed of a level conversion chip U3, a common mode suppressor U4, Zener diodes D1 and D2, and capacitors C1 to C5, wherein the capacitor C1 and the Zener diode After D1 is connected in parallel, one end is connected to the signal H1, and the other end is connected to the ground; after the capacitor C2 and Zener diode D2 are connected in parallel, one end is connected to the signal H2, and the other end is connected to the ground; the signals H1 and H2 are respectively connected to the input of the common mode suppressor U4 The output end of the common-mode suppressor U4 is connected to the input end of the level conversion chip U1, one end of the capacitor C3 is connected to the output end of the common-mode suppressor U4, and the other end is connected to the ground; one end of the capacitor C4 is connected to the common-mode suppressor U1 The other output end of U4 is connected, the other end of the capacitor C4 is connected to the ground, the capacitor C5 is connected between the VCC voltage and the ground, the output end of the level conversion chip U1 is connected to the signals S1 and S2; the LAN line interface circuit is used for Obtain the LAN communication signal L1 from the LAN line interface, and convert the communication signal L1 into a digital signal S3 that can be recognized by the microprocessor, and convert the digital signal S4 of the microprocessor into a LAN communication signal L2; the microprocessor is used to receive Digital signal S1, and according to the controller local Internet bus protocol and local Internet bus protocol, digital signal S1 is encoded, converted into digital signal S4, digital signal S3 is received, and according to the controller local Internet bus protocol and Local Internet bus protocol, encoding digital signal S3 and converting it into digital signal S2; 电力网线,用于使为汽车电器提供电能的电源与汽车电器相连,电源通过电源接口与电力网线相连;The power network cable is used to connect the power supply that provides electric energy to the car electrical appliances, and the power supply is connected to the power network cable through the power interface; 中央协调器,用于对汽车电器进行协调控制,中央协调器通过骨干网线接口与骨干网线相连;The central coordinator is used to coordinate and control the automotive electrical appliances. The central coordinator is connected to the backbone network cable through the backbone network cable interface; 中央微机,用于向汽车驾驶员显示汽车电器的状态信息和故障信息,中央微机通过骨干网线接口与骨干网线相连,同时通过电力网线接口与电力网线相连;The central microcomputer is used to display the status information and fault information of the automobile electrical appliances to the driver. The central microcomputer is connected to the backbone network cable through the backbone network cable interface, and at the same time connected to the power network cable through the power network cable interface; 多个控制器局域互联网络总线电器,通过骨干网线接口与骨干网线相连,同时通过电力网线接口与电力网线相连;Multiple controller local area interconnection network bus appliances are connected to the backbone network cable through the backbone network cable interface, and connected to the power network cable through the power network cable interface at the same time; 多个局域互联网络总线电器,通过局域网线接口与局域网线相连。A plurality of local area interconnection network bus electrical appliances are connected with the local area network line through the local area network line interface. 2.一种汽车电器的连接系统,其特征在于,包括:2. A connection system for automotive electrical appliances, characterized in that it comprises: 骨干网线,为汽车电器连接系统中的骨干线;The backbone network cable is the backbone line in the automotive electrical connection system; 多个局域网线,用于使带有局域互联络总线接口的电器与骨干网线相连接,局域网线分别依次通过局域网线接口、网关和骨干网线接口与骨干网线相连,同时通过电力网线接口与电力网线相连,其中所述的网关包括:稳压模块,用于从骨干网线接口获得12伏电压后,进行电压转换,为微处理器提供5伏电压,稳压模块的一端与骨干网线接口相连,另一端与微处理器相连;骨干网线接口电路,用于从骨干网线接口获取骨干网通信信号H1,并将该通信信号H1转换为微处理器能够识别的数字信号S1,将微处理器的数字信号S2转换为骨干网通信信号H2;局域网线接口电路,用于从局域网线接口获取局域网通信信号L1,并将该通信信号L1转换为微处理器能够识别的数字信号S3,将微处理器的数字信号S4转换为局域网通信信号L2,所述的局域网线接口电路由电压转换芯片U1、限流电阻R1和R2,防反接二极管D3组成,其中限流电阻R2的一端与局域网信号L1和L2相接,另一端与防反接二极管D3相接,防反接二极管D3的另一端与12V电源相连;限流电阻R1的一端与12V电源相连,另一端与电压转换芯片U1相连,电压转换芯片U1分别与数字信号S3、S4,局域网信号L1、L2相连,电容C6一端与电压转换芯片U1相连,另一端与地相连;微处理器,用于接收数字信号S1,并根据控制器局域互联网络总线协议和局域互联网络总线协议,将数字信号S1编码,转换成数字信号S4,接收数字信号S3,并根据控制器局域互联网络总线协议和局域互联网络总线协议,将数字信号S3编码,转换成数字信号S2;A plurality of LAN cables are used to connect electrical appliances with LAN interconnection bus interfaces to backbone network cables. The network cable is connected, wherein the gateway includes: a voltage stabilizing module, which is used for voltage conversion after obtaining 12 volts from the backbone network cable interface, and provides 5 volts for the microprocessor. One end of the voltage stabilizing module is connected to the backbone network cable interface, The other end is connected to the microprocessor; the backbone network cable interface circuit is used to obtain the backbone network communication signal H1 from the backbone network cable interface, and convert the communication signal H1 into a digital signal S1 that the microprocessor can recognize, and convert the digital signal of the microprocessor The signal S2 is converted into the backbone network communication signal H2; the LAN cable interface circuit is used to obtain the LAN communication signal L1 from the LAN cable interface, and convert the communication signal L1 into a digital signal S3 that the microprocessor can recognize, and convert the microprocessor's The digital signal S4 is converted into a LAN communication signal L2, and the LAN line interface circuit is composed of a voltage conversion chip U1, current limiting resistors R1 and R2, and an anti-reverse connection diode D3, wherein one end of the current limiting resistor R2 is connected to the LAN signal L1 and L2 The other end is connected to the anti-reverse diode D3, and the other end of the anti-reverse diode D3 is connected to the 12V power supply; one end of the current limiting resistor R1 is connected to the 12V power supply, and the other end is connected to the voltage conversion chip U1, the voltage conversion chip U1 is respectively connected to digital signals S3, S4, LAN signals L1, L2, one end of capacitor C6 is connected to voltage conversion chip U1, and the other end is connected to ground; the microprocessor is used to receive digital signal S1, and connect according to the local area of the controller The network bus protocol and the LAN bus protocol encode the digital signal S1, convert it into a digital signal S4, receive the digital signal S3, and convert the digital signal S3 according to the controller LAN bus protocol and the LAN bus protocol. Coding, converted into digital signal S2; 电力网线,用于使为汽车电器提供电能的电源与汽车电器相连,电源通过电源接口与电力网线相连;The power network cable is used to connect the power supply that provides electric energy to the car electrical appliances, and the power supply is connected to the power network cable through the power interface; 中央协调器,用于对汽车电器进行协调控制,中央协调器通过骨干网线接口与骨干网线相连;The central coordinator is used to coordinate and control the automotive electrical appliances. The central coordinator is connected to the backbone network cable through the backbone network cable interface; 中央微机,用于向汽车驾驶员显示汽车电器的状态信息和故障信息,中央微机通过骨干网线接口与骨干网线相连,同时通过电力网线接口与电力网线相连;The central microcomputer is used to display the status information and fault information of the automobile electrical appliances to the driver. The central microcomputer is connected to the backbone network cable through the backbone network cable interface, and at the same time connected to the power network cable through the power network cable interface; 多个控制器局域互联网络总线电器,通过骨干网线接口与骨干网线相连,同时通过电力网线接口与电力网线相连;Multiple controller local area interconnection network bus appliances are connected to the backbone network cable through the backbone network cable interface, and connected to the power network cable through the power network cable interface at the same time; 多个局域互联网络总线电器,通过局域网线接口与局域网线相连。A plurality of local area interconnection network bus electrical appliances are connected with the local area network line through the local area network line interface. 3.如权利要求1或2所述的连接系统,其特征在于其中所述的骨干网线的结构为:在塑料外套内,设置三根电线和一根含有多个端口的屏蔽双绞线,其中的三根电线分别与骨干网线接口中的三个端子相连,屏蔽双绞线的每两个端口相连后再与骨干网线接口中的两个相邻端子相连,屏蔽双绞线的屏蔽层与三根电线中的地线相连。3. The connection system according to claim 1 or 2, characterized in that the structure of the backbone network cable is as follows: in the plastic jacket, three wires and a shielded twisted pair containing multiple ports are arranged, wherein The three wires are respectively connected to the three terminals in the interface of the backbone network cable. Every two ports of the shielded twisted pair are connected to two adjacent terminals in the interface of the backbone network cable. The shielding layer of the shielded twisted pair is connected to the connected to the ground wire. 4.如权利要求1或2所述的连接系统,其特征在于其中所述的局域网线的结构为:在塑料外套内,设置三根电线、功率电源线和功率电源地线,上述五根电线分别与局域网线接口中的五个端子相连,其中的功率电源线和功率电源地线分别通过电力网线接口中的两个端子相连。4. The connection system according to claim 1 or 2, wherein the structure of the local area network cable is as follows: in the plastic jacket, three wires, a power supply wire and a power supply ground wire are arranged, and the above five wires are respectively It is connected to five terminals in the LAN cable interface, and the power supply line and the power supply ground line are respectively connected through two terminals in the power network cable interface. 5.如权利要求1或2所述的连接系统,其特征在于其中所述的电力网线的结构为:在塑料外套内,设置多根功率电源线和一根功率电源地线,其中的功率电源地线与所有电力网线接口相连,多根功率电源线分别与相应的电力网线接口中的端子相连,同时与电源相连。5. The connection system according to claim 1 or 2, characterized in that the structure of the power network cable is as follows: in the plastic jacket, a plurality of power supply lines and a power supply grounding line are arranged, and the power supply The ground wire is connected to all the power network cable interfaces, and multiple power supply lines are respectively connected to the terminals in the corresponding power network cable interfaces and connected to the power supply at the same time. 6.如权利要求1或2所述的连接系统,其特征在于其中所述的中央协调器包括:6. The connection system according to claim 1 or 2, wherein said central coordinator comprises: 骨干网线接口,用于接收骨干网线上的信号,并将该信号发送至通信接口电路;The backbone network cable interface is used to receive the signal on the backbone network line and send the signal to the communication interface circuit; 稳压电源模块,用于从上述骨干网线接口获得12伏电压后,进行电压转换,输出5伏电压,为骨干网线接口电路和中央处理器提供电源;The stabilized power supply module is used to perform voltage conversion after obtaining 12 volts from the above-mentioned backbone network cable interface, and output 5 volts to provide power for the backbone network cable interface circuit and the central processing unit; 骨干网线接口电路,用于从骨干网线接口获取骨干网通信信号H1,并将该通信信号H1转换为微处理器能够识别的数字信号S1,将微处理器的数字信号S2转换为骨干网通信信号H2;The backbone network cable interface circuit is used to obtain the backbone network communication signal H1 from the backbone network cable interface, convert the communication signal H1 into a digital signal S1 that the microprocessor can recognize, and convert the digital signal S2 of the microprocessor into a backbone network communication signal H2; 中央处理器,用于读取上述骨干网线接口电路的信号S1,对读取的信号根据汽车总线协议进行分类和逻辑判断,根据车载总线协议对上述逻辑判断结果进行编码,得到数字信号S2,并将数字信号S2发送至骨干网线接口电路。The central processing unit is used to read the signal S1 of the above-mentioned backbone network cable interface circuit, classify and logically judge the read signal according to the vehicle bus protocol, encode the above-mentioned logical judgment result according to the vehicle bus protocol, and obtain the digital signal S2, and Send the digital signal S2 to the backbone network cable interface circuit.
CN2008101175421A 2008-08-01 2008-08-01 A connection system for automotive electrical appliances Active CN101327769B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008101175421A CN101327769B (en) 2008-08-01 2008-08-01 A connection system for automotive electrical appliances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101175421A CN101327769B (en) 2008-08-01 2008-08-01 A connection system for automotive electrical appliances

Publications (2)

Publication Number Publication Date
CN101327769A CN101327769A (en) 2008-12-24
CN101327769B true CN101327769B (en) 2010-06-02

Family

ID=40203859

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008101175421A Active CN101327769B (en) 2008-08-01 2008-08-01 A connection system for automotive electrical appliances

Country Status (1)

Country Link
CN (1) CN101327769B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103200244A (en) * 2013-03-20 2013-07-10 清华大学 Vehicle-mounted intelligent internet of things
CN103945571B (en) * 2014-04-04 2018-04-13 南京理工大学 wireless gateway device
JP6315341B2 (en) * 2014-12-15 2018-04-25 株式会社オートネットワーク技術研究所 Main line structure in in-vehicle network and in-vehicle network connector
CN109311435B (en) * 2016-06-24 2022-05-10 矢崎总业株式会社 vehicle circuit body
CN108303970A (en) * 2018-02-27 2018-07-20 吉旗(成都)科技有限公司 A kind of method of automatic identification vehicle diagnosis interface channel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6377860B1 (en) * 1998-07-31 2002-04-23 Sun Microsystems, Inc. Networked vehicle implementing plug and play with javabeans
CN1417980A (en) * 2002-11-07 2003-05-14 吕京建 Intelligent gateway device for vehicle controller LAN
EP1189393B1 (en) * 2000-09-15 2005-04-13 Robert Bosch Gmbh Accessing and/or controlling CAN node arrangements, including vehicle control units, during vehicle operation
CN101055997A (en) * 2007-04-27 2007-10-17 中国人民解放军国防科学技术大学 Digital allocation method of the electric power transfer system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6377860B1 (en) * 1998-07-31 2002-04-23 Sun Microsystems, Inc. Networked vehicle implementing plug and play with javabeans
EP1189393B1 (en) * 2000-09-15 2005-04-13 Robert Bosch Gmbh Accessing and/or controlling CAN node arrangements, including vehicle control units, during vehicle operation
CN1417980A (en) * 2002-11-07 2003-05-14 吕京建 Intelligent gateway device for vehicle controller LAN
CN101055997A (en) * 2007-04-27 2007-10-17 中国人民解放军国防科学技术大学 Digital allocation method of the electric power transfer system

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
JP特开2003-318925A 2003.11.07
刘新亮,张建武,陈兆能.汽车控制器局域网络技术及应用.汽车工程20 2.1998,20(2),101-107.
刘新亮,张建武,陈兆能.汽车控制器局域网络技术及应用.汽车工程20 2.1998,20(2),101-107. *
疏祥林.控制局域网在汽车上的应用.安徽电子信息职业技术学院学报5 24.2006,5(24),90-92,97.
疏祥林.控制局域网在汽车上的应用.安徽电子信息职业技术学院学报5 24.2006,5(24),90-92,97. *

Also Published As

Publication number Publication date
CN101327769A (en) 2008-12-24

Similar Documents

Publication Publication Date Title
CN210120567U (en) Vehicle-mounted composite gateway and vehicle
CN101327769B (en) A connection system for automotive electrical appliances
US8303337B2 (en) Hybrid cable for conveying data and power
US20090011639A1 (en) Hybrid cable for conveying data and power
US7855573B1 (en) Controller area network active bus terminator
CN201114146Y (en) Tandem type mixing power automobile control system
CN102596647A (en) Wiring harness and electronic device control system
CN101933102A (en) Hybrid cable for transmitting data and power
CN103186126B (en) Realize interface arrangement and method that dcs is interconnected with smart machine
CN113997883A (en) Multifunctional wire harness for new energy automobile
JP7279171B2 (en) In-vehicle local network system
CN202035002U (en) Automobile controller area network (CAN) bus structure
CN201893176U (en) Digital cable for automobile bus
CN213585817U (en) RTL9047 AA-based automobile gateway hardware platform
CN100570964C (en) Unchanging plug-in components for automotive smart appliances
CN217455886U (en) Multifunctional wire harness for new energy automobile
CN101327768B (en) Unchanging wiring harness based on automotive intelligent electrical system
US20210074446A1 (en) Wiring system
CN202294319U (en) Wire bundle integration module for instrument desk of equative platform
CN215934018U (en) Penetrating type puncture connector wire harness
CN208459845U (en) A kind of automobile bus communication wire selection system of 38PIN interface
CN207291898U (en) Battery truck interconnecting module
CN218585223U (en) Integrated car gateway that has OBD mouth
CN111585127A (en) Distribution integrated form pencil
CN219513844U (en) Novel centralized power supply communication structure for charging socket

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant