KR20030078341A - Apparatus for intelligent harness network in vehicle - Google Patents

Abstract

PURPOSE: An intelligent network device for electric/electronic equipment of a vehicle is provided to simplify wiring, and to reduce the weight of the vehicle by applying LON work network to the vehicle. CONSTITUTION: An intelligent network device is composed of LON(Local Operating System) work modules, and a twisted pair line for connecting the lonwork modules each other. The lonwork module includes a power unit(11), an oscillating unit(12), a memory unit(13) for storing data, a control unit(14) for controlling data transmission, a transmitting/receiving unit(15) for transmitting/receiving data, and an interface unit(16).

Description

Intelligent electronic network device in a vehicle {APPARATUS FOR INTELLIGENT HARNESS NETWORK IN VEHICLE}

The present invention relates to the electric field of a vehicle, and more particularly, the communication between the various electrical and electronic devices that are distributed and mounted throughout the vehicle by applying a loan protocol, which is a stable protocol and expandability and intelligent network, to the vehicle. Lonwork) relates to a vehicle's intelligent electronic network device.

In general, the automobile industry is one of the key industries in the country, and in order to have international competitiveness, it is necessary to develop automotive electronic systems, and in fact, the proportion of electronic systems applied in vehicles exceeds 20% of the total production price of vehicles. As time goes by, the proportion is expected to increase.

Therefore, reducing the complexity associated with wiring work is the key to building and designing a vehicle.

Actually applied to the vehicle and the wiring length of the wiring harness is different depending on the type of vehicle, but it is usually close to 2000M and its weight is over 100Kg, which increases the weight of the vehicle, causing the problem of worsening fuel economy, design and wiring It is a big problem in the installation of the harness.

Medium and large passenger cars, which are usually applied with various electronic control devices and convenience specifications, have more than 600 different types of wirings, which are causing a problem of maintenance and rising prices.

The wiring harness, which serves as a nervous system that transmits and receives information, control signals, and various detection signals between electric / electronic devices distributed and mounted throughout the current vehicle, is roughly 80 lines, as can be seen from the attached 3. Main wiring harness, chassis wiring harness of approximately 120 lines, engine wiring harness of approximately 70 lines, roof wiring harness including air conditioning wiring harness, rear chassis wiring harness, A wiring harness for transmitting and receiving signals of sensors distributed throughout the vehicle and transmitting and receiving signals for operation control between various electric / electronic devices is provided.

In particular, commercial vehicles are equipped with a myriad of electrical and electronic devices such as lamps, sensors, controllers, actuators, batteries, audio, video, TVs, and dashboards that are provided indoors and outdoors. The wiring harness is organically connected to supply and control the electricity.

In addition, fuses and relays are included to control the electrical components for the purpose of preventing failure and fire of the electrical components due to short-circuit of the wiring harness or instantaneous current due to overload.

Referring to the configuration of the wiring harness for the air conditioner / heater device that is applied to a commercial vehicle in one embodiment as follows.

As can be seen in the accompanying FIG. 4, the air conditioner / heater is applied by the remote switch 1 and the remote switch 1 in which the driver selects a temperature condition, a wind volume condition, a wind direction condition, an air conditioner or a heater mode condition, and the like. A driving panel 2 for controlling the operation of each driving device according to the driving request signal, a condenser / compressor 3 for condensing and compressing the refrigerant gas in the driving of the cooling device, and cooling or heating air It is composed of a blower motor (4) to be supplied to the room, each of the above components is configured so that each electrical signal is transmitted one-to-one through a plurality of wiring harness around the drive panel (2) The configuration is very complicated.

As described above, a number of wiring harnesses, fuses, and relays are very complicatedly connected to transmit / receive detection signals and control signals between electric / electronic devices and sensors, thereby increasing the weight of the vehicle and worsening fuel economy. In addition, in the event of a disconnection or short circuit of the wiring harness connected to any electric device, repair and repair are almost impossible due to the complexity of the wiring harness, and at the same time, there is a disadvantage in that the cause of the failure cannot be found.

In particular, a corresponding signal line is necessarily required to drive one device, and must also be processed by the corresponding signal line to read a signal detected from the sensor.

In addition, due to the complexity of the wiring harness, there is a problem in the design of the development of a new car.

Although it is limited, the engine and the mission part apply CAN communication to improve the reliability of transmitting and receiving control signals between control devices while reducing wiring, but this is extremely weak compared to the overall vehicle.

The present invention has been invented to solve the above problems, and the object of the present invention is to apply a Lonwalk technology, which is an intelligent network having excellent stable protocols, scalability and performance in a field bus, to an intelligent vehicle electric field network. By providing them, simple wiring, flexible expandability, fuel efficiency improvement due to light weight, and information and intelligence of the vehicle through the network are provided.

In addition, by applying IPS (Intelligent Power Switch) to eliminate the use of fuses and relays in the vehicle's electrical structure, it is possible to diagnose the failure through the Hi-Scanner during maintenance.

1 is a block diagram of an intelligent electric vehicle network device of a vehicle according to the present invention.

2 is a detailed configuration diagram of a connection module in an intelligent electric vehicle network device of a vehicle according to the present invention;

3 is a conceptual diagram of a wiring harness applied to a conventional vehicle.

4 is a block diagram of a wiring harness for an air conditioner / heater device in one embodiment in the electric vehicle structure of a conventional vehicle.

The present invention for realizing the above object is a means for controlling the electrical / electronic devices mounted at each position of the vehicle and means for collecting and transmitting information of the sensor at each position and means for driving the operation of each drive device A loanwork module configured independently; It is characterized by consisting of a twisted pair of lines connected to each independent loanwork module to form a network.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As can be seen in Figure 1, the intelligent electrical network device of the vehicle according to the present invention is a means for controlling the electrical / electronic devices mounted at each position of the vehicle and the general generated by the operation of the vehicle at each position It consists of independent loanwork modules for the means for collecting and transmitting information of the sensor for detecting the information and the means for driving the operation of each driving device provided in the vehicle, and twisted pair lines for each independent loanwork modules. Connect to the Lone Walk network through Pair Line.

In the above, the network connection between each independent walkwalk module supports various communication media such as AC / DC power line, RF, and also a communication network can be configured through a power line using a DC power source inside the vehicle.

The concept of LON (Local Operating System) in the Lonwalk system is basically a network using the CSMA / CD protocol when compared to a general local area network (LAN), but has different characteristics.

In other words, LAN aims to process a large amount of data such as documents and images of a computer, but LON aims to control highly organized work by transmitting and receiving a small amount of data such as a node's commands and status.

As shown in FIG. 1, the ron walk module in FIG. 1 includes a power supply unit 11, an oscillator 12, a memory 13, a controller 14, a transceiver 15, and an interface 16. The power supply unit 11 is independently mounted at each position of the vehicle and supplies power and backup power required to the loan walk module connected to the network through a twisted pair line or a power line.

The oscillator 12 oscillates a frequency of a set band when power is supplied to an independently configured module so that the module can be operated.

The memory unit 13 stores predetermined data necessary for operating the system, and stores data information and diagnostic data detected during operation in a designated area.

The controller 14 controls data transmission and reception between each module connected to the network, and when the user is required to perform a predetermined function, the controller 14 operates a corresponding driving device that is wired and connected through the interface unit 16.

The transceiver 15 is connected to a network such as a twisted pair line or an AC / DC power line, receives control data transmitted from a counterpart module, and transmits a signal for controlling a counterpart module to the network.

The interface unit 16 is connected to a drive device or sensors driven by the outside, and transmits a corresponding control signal applied from the control unit 14 to an external drive device, and receives information detected from the external drive device or sensors. Interface to the control unit 14 side.

The loanwork network according to the present invention for connecting the loanwork module having the configuration of FIG. 2 may freely configure the network regardless of the environment in the vehicle body when constructing a communication network.

In other words, if a communication line is secured at a desired place, the network can be configured by connecting as it is without network analysis, and it supports the Free Topology network when constructing the network.If a power line is used, a separate signal line is not needed. It is not limited by distance and number of nodes.

In addition, in FIG. 2, the neuron chip, which is a component of the control unit 14, has a built-in communication protocol, so there is no separate development burden for communication, and the chip is basically provided with an input / output port, thereby enabling various applications.

In the above connection of the independent loanwork module through a network, the physical connection does not exist except the network communication line by connecting with a software technique called binding, and when adding or deleting a new device, only the connection link called binding is released. And easy to release.

In addition, the network management tool, Ron Maker, enables you to monitor and maintain your network online, replace and modify applications directly via the network, and easily connect to external networks in the future.

In the independent loan work module configured as shown in FIG. 2, the definition of each module connected to the network as shown in FIG. 1 is as follows.

First, the ACCP_MO is an air conditioner module, and an internal specification is configured as follows, for example.

ACS_MO is an air conditioner control switch module. The internal specification is configured as follows, for example.

In addition, C_MO is a cluster module, and an internal specification is configured as follows, for example.

ETC_MO is an ETC interface module, and an internal specification is configured as follows, for example.

FRLL_MO is the left module of the front ramp.

FRLR_MO is a module on the right side of the front lamp. The internal specification is configured as follows, for example.

FS_MO is a front sensor module. For example, the internal specification is configured as follows.

H_MO is the heater control module, INPAS1_MO is the module of the inner panel 1, INPAS2_MO is the module of the inner panel 2, MF_MO is the main function module, RL_MO is the room lamp module, RRLL_MO is the left lamp left module, and RRLR_MO is the rear The right module of the lamp, and RO_MO is a rear sensor module, the description of the internal configuration thereof will be omitted.

As described above, according to the present invention, an intelligent network is constructed in the vehicle, thereby eliminating the installation of complicated wiring harnesses, thereby reducing production costs and improving productivity, and by reducing the weight of the vehicle through the elimination of wiring harnesses. Improve fuel economy

Claims (7)

A loanwork module for independently configuring means for controlling electrical / electronic devices mounted at each location of the vehicle, means for collecting and transmitting information of sensors at each location, and means for driving the operation of each drive device; And a twisted pair line configured to connect each of the independent ronwalk modules to form a network. The method of claim 1, The loanwork module includes a power supply unit for supplying necessary power and backup power; An oscillator for oscillating a frequency of a set band so that a module can be operated; A memory unit for storing predetermined data necessary for operating the system, and backing up data information and diagnostic data detected during operation; A control unit which controls data transmission and reception between respective modules connected to a network, and performs a corresponding function when the user is required to perform a predetermined function; A transceiver connected to a network to perform data transmission and reception between modules; And an interface unit connected to an external device to interface a detection signal or a drive signal of the control unit. The method of claim 2, The control unit is provided with a communication protocol and an input / output port therein, the intelligent electric wire network device of a vehicle, characterized in that various applications are possible. The method of claim 1, The LoneWalk module is an intelligent electric field network device of a vehicle, characterized in that connected to the network by a software technique called binding. The method of claim 1, The loan work module is an intelligent electric field network device of a vehicle, which can be monitored and maintained online through a loan maker, a network management tool. The method of claim 1, The loan work module is an intelligent electric vehicle network device of a vehicle, characterized in that the replacement and modification of the application set through the network. The method of claim 1, The loanwork module is an intelligent electric field network device of a vehicle, characterized in that it is easy to connect to an external communication network.