KR200368541Y1 - Electronic control system of automobile - Google Patents

Abstract

The present invention discloses an electronic control system of a vehicle. The system transmits input information through a plurality of inputs outputting an input signal, and a communication line in response to the input signal, and operates a load in response to the input signal and the input information received through the communication line. And a plurality of control modules for outputting driving signals, wherein the control modules are connected through the communication line. Therefore, the wiring required for building the electronic control system of the automobile can be simplified and the wiring amount can be reduced.

Description

Electronic control system of automobile

The present invention relates to an electronic control system of an automobile, and more particularly, to an electronic control system of an automobile capable of simplifying wiring while reducing the amount of wiring required for an electronic control system by using a communication line.

Recently, electronic systems that have not been applied or installed as some options on high-end vehicles are gradually being replaced by basic installations, and new electronic systems have been developed and mounted mainly on high-end vehicles. Therefore, the wiring amount for installing this is increasing, and the wiring is also complicated.

FIG. 1 is a block diagram schematically illustrating an electronic control system of a conventional automaker, and includes first, second, and third input units 12, 14, and 16, a battery 21, a first junction box 22, and a second one. The junction box 23, the control unit 24, the relay box 25, and the first, second and third loads 32, 34, and 36 are formed. In FIG. 1, the engine room region represents the engine room of the vehicle and its surrounding area, the instrument panel region represents the periphery of the instrument panel and the interior area of the car, and the trunk region represents the trunk and the peripheral area thereof.

1, the first, second and third loads 32, 34, 36 are each an apparatus for operating an electronic system mounted in an engine compartment region, an instrument panel region, a trunk region, for example a headlamp, Means various lamps, such as a turn signal, a dashboard, and a motor for operating a power window. In other words, the first load 32 in the engine room region may be configured as a head lamp of a vehicle, a lamp such as a turn signal located in front of the vehicle, a vehicle width lamp, or the like, and the second load 34 in the dashboard region. ) May be configured with various lamps such as a motor, an instrument panel for operating the power window, and the third load 36 in the trunk area may be configured with a lamp such as a tail light or the like at the rear of the vehicle.

The function of each of the blocks shown in FIG. 1 is as follows.

The first, second, and third input units 12, 14, and 16 are configured by a sensor or a switch, and detect a state of a specific component or output an input signal in response to a user's manipulation. For example, in the case of the second input unit 14 in the instrument panel region, the second input unit 14 may be configured of various switches for turning on and off the indoor and outdoor lighting, switches for opening and closing the power window, and the like. Accordingly outputs an input signal. In the case of the third input unit 16 in the trunk region, the third input unit 16 may be configured as a sensor for detecting whether the trunk is opened or closed, a sensor for detecting the opening or closing of the fuel inlet, and the sensors detect the opening or closing of the trunk or the fuel inlet. Outputs the corresponding input signal.

The battery 21 supplies power. The first junction box 22 mounted in the engine room area transfers the power supplied from the battery 21 to each part of the system (for example, the second junction box 23, the relay box 25, etc.). At the same time, control signals for operating the loads are output in response to an input signal input from the first input unit 12 or the second input unit 14. The second junction box 23 mounted in the dashboard region receives power from the first junction box 22 and transfers it to the control unit 24 again, or inputs it from the second input unit 14 using the supplied power. Output control signals for operating the loads in response to the input signal.

The control unit 24 outputs a control signal for operating the loads in response to an input signal input from the second input unit 14 or the third input unit 16. The control unit 24 may be provided in plurality according to the type and number of loads to be operated. The relay box 25 operates the loads in response to the control signal output from the control unit 24.

The first, second, and third loads 32, 34, and 36 are control signals output from the first junction box 22, the second junction box 23, the control unit 24, or the relay box 25. Operate in response to That is, the first, second, and third loads 32, 34, 36 may be directly controlled by the control unit 24 according to the type of load, the magnitude of the required driving current, and the like, and the relay box 25 may be used. May be controlled through the first junction box 22 or the second junction box 23.

In the electronic system of a conventional vehicle, devices for controlling a load (for example, the first junction box 22, the second junction box 23, the control unit 24, and the relay box 25, etc.) are classified by function. there was. For example, in the electronic system of the conventional automobile shown in FIG. 1, the first junction box 22 mounted in the engine room region controls various lamps outside the vehicle except for a traffic light, and is mounted in the instrument panel region ( 24 may be configured to control the power window, various indicators of the instrument cluster, and turn signals.

By the way, when an electronic system is comprised as mentioned above, wiring becomes complicated, and therefore there exists a problem that wiring amount increases.

For example, if a user operates a switch to turn on a taillight of a vehicle before operating the headlamp of a vehicle, the electronic control system of the vehicle generally includes a rear lamp, a rear light lamp, and the like. Lamps, such as taillights, located at turn on, and control the electronics to turn on the back light of the instrument panel so that the user can see the instrument panel. The front lamp lights belong to the first load 32 in the engine compartment area, the rear tail lights belong to the third load 36 in the trunk area, and the backlight of the instrument cluster is located in the instrument cluster area. Belongs to the second load 34.

In the case of the electronic system of a conventional automobile, the apparatus for operating the vehicle's side light and the tail light is the first junction box 22, and the apparatus for operating the instrument panel is the control unit 24, and the vehicle's width light and the tail light. A switch for turning the back on is located at the second input 14 in the instrument cluster region.

Therefore, in order to transfer the input signal output from the second input unit 14, a wiring from the second input unit 14 to the first junction box 22 is required, and also from the second input unit 14 to the control unit 24. Wiring up to) is also required. In addition, the wiring from the first junction box 22 to the first load 32 in the engine room area, the first junction box to turn on the backlight of the vehicle headlight, the tail light, and the instrument panel by the input signal for controlling the lamp. The wiring from 22 to the 3rd load 36 of the trunk area 36, the wiring from the control unit 24 to the 2nd load 34 of the instrument panel area, etc. are all needed.

Similarly, in the case of controlling the turn signals, the control unit 24 controlling the turn lights is in the instrument panel region, but since the turn lights are in the front and rear of the vehicle, the wiring connecting the control unit 24 to each turn light It is also necessary. In the case of other electronic systems, separate wiring is required.

Therefore, as the electronic system mounted on the vehicle increases, the wiring amount also increases, and the wiring becomes complicated. This leads to an increase in the weight of the vehicle and the amount of work required for production, and consequently, increases the production cost of the vehicle. Also, in recent years, as the type and number of electronic equipments mounted on automobiles increase, wiring is not possible due to lack of space.

An object of the present invention is to provide an electronic control system for a vehicle that can reduce wiring amount and simplify wiring.

An electronic control system of an automobile of the present invention for achieving the above object comprises a plurality of input units for outputting an input signal, and transmitting input information through a communication line in response to the input signal, and transmitting the input signal and the communication line. And a plurality of control modules for outputting driving signals for operating the load in response to the received input information, wherein the control modules are connected through the communication line.

The plurality of control modules of the electronic control system of the vehicle of the present invention for achieving the above object is a control unit for outputting the input information in response to the input signal, and outputs a control signal in response to the input signal and the input information And a driving unit for outputting the driving signal in response to the control signal.

The driving unit of the electronic control system of the vehicle of the present invention for achieving the above object is characterized in that it comprises an overcurrent preventing means for preventing the overcurrent flowing by the drive signal.

The plurality of inputs of the electronic control system of the vehicle of the present invention for achieving the above object is a first input portion located in the engine room region, a second input portion located in the instrument panel region, and a third input portion located in the trunk region It is characterized by including.

The plurality of control modules of the electronic control system of the vehicle of the present invention for achieving the above object is a first control module located in the engine room area, a second control module located in the instrument panel area, and the trunk area And a third control module.

In order to achieve the above object, the first control module of the electronic control system of the present invention receives an input signal output from the first input unit, drives loads located in the engine room region, and controls the second control. The module receives an input signal output from the second input unit, drives loads located in the instrument panel region, and the third control module receives an input signal output from the third input unit and is located in the trunk region. It is characterized by driving the load.

In order to achieve the above object, the electronic control system of an automobile of the present invention includes a first input unit and a first control module located in an engine room area, a second input unit and a second control module located in an instrument panel area, and a trunk area. And a third input unit and a third control module, wherein the first, second, and third control modules are connected to each other through a communication line, respectively, to input signals input from the first, second, and third input units, respectively. In response, output information through the communication line.

The first, second, and third control modules of the electronic control system of an automobile of the present invention for achieving the above object output the input information in response to the input signal, and respond to the input signal and the input information. And a control unit for outputting a control signal, and a driving unit for outputting the driving signal in response to the control signal.

The driving unit of the electronic control system of the vehicle of the present invention for achieving the above object is characterized in that it comprises an overcurrent preventing means for preventing the overcurrent flowing by the drive signal.

The first, second, and third control modules of the electronic control system of the present invention for achieving the above object are characterized in that to drive the loads of the engine room area, instrument panel area, trunk area, respectively.

1 is a block diagram schematically showing an electronic control system of a conventional vehicle.

2 is a block diagram schematically showing an electronic control system of a vehicle of the present invention.

3 is a view for explaining an example in which the electronic control system of a vehicle of the present invention is mounted on a vehicle.

Hereinafter, with reference to the accompanying drawings will be described the electronic control system of the vehicle of the present invention.

FIG. 2 is a block diagram schematically illustrating an electronic control system for a vehicle according to the present invention, wherein the first, second, and third input units 12, 14, 16, first, second, and third control modules 42 are illustrated in FIG. , 44, 46, battery 21, and first, second, and third loads 32, 34, 36, and first, second, and third control modules 42, 44. And 46 are each composed of a controller and a driver.

In FIG. 2, the first, second and third loads 32, 34, 36 are each a device for operating an electronic system located in the engine compartment area, the instrument panel area and the trunk area, for example a head lamp, a direction. Lamps and the like, motors for operating the power window, and the like, and dotted lines represent communication lines. The communication line may consist of a single wire, a twisted pair wire, an optical cable, or the like.

The function of each of the blocks shown in FIG. 2 is as follows.

The first, second, and third input units 12, 14, and 16 are configured by a sensor or a switch, and the like, and input signals IN1 and IN2 respectively in response to a state of a specific component or in response to a user's manipulation. , IN3). For example, in the case of the second input unit 14 in the instrument panel region, the second input unit 14 may be configured of various switches for turning on and off the indoor and outdoor lighting, switches for opening and closing the power window, and the like. Therefore, the input signal IN2 is output. In the case of the third input unit 16 in the trunk area, the sensor may be configured to detect whether the trunk is opened or closed, a sensor that detects the opening or closing of the fuel inlet, and the like. Outputs the corresponding input signal IN3.

The first control module 42 operates by receiving power from the battery 21, and supplies the power back to the second and third control modules 44 and 46. Although not shown, in general, when the power is supplied to the second and third control modules 44 and 46, an overcurrent is prevented from being supplied by using a fuse or the like. In addition, in response to the input signal IN1 input from the first input unit 12 and the input information transmitted through the communication line, the driving signals CON1 for operating the first load 32 located in the engine room area are output. And transmits the input information to the second and / or third control modules 44 and 46 through the communication line in response to the input signal IN1 input from the first input unit 12. In addition, although not shown, in general, when the first control module 42 outputs the driving signals CON1, the first load 32 and / or the driving signals CON1 are transmitted by overcurrent. An overcurrent prevention means for preventing an overcurrent, such as a fuse, is provided to prevent damage to the wiring or the like.

The second and third control modules 44 and 46 are respectively instrument panel regions in response to input signals IN2 and IN3 input from the second or third input units 14 and 16 and input information transmitted through a communication line, respectively. Outputs drive signals CON2 and CON3 for operating the second load 34 in the vehicle, or the third load 36 in the trunk area, and also the second or third inputs 14 and 16, respectively. The input information is transmitted to another control module through a communication line in response to the input signals IN2 and IN3 input from the communication line. Although not shown, in general, when the second and third control modules 44 and 46 output the driving signals CON2 and CON3, the second and third loads 34 and 36 may be caused by overcurrent. And / or overcurrent preventing means for preventing overcurrent, such as a fuse, in order to prevent damage to a wiring or the like from which the driving signals CON2 and CON3 are output.

The control unit of the first, second, and third control modules 42, 44, and 46 controls input signals IN1, IN2, and IN3 input from the first, second, or third input units 12, 14, and 16, respectively. And a control signal in response to the input information transmitted through the communication line, and input signals IN1, IN2, and IN3 input from the first, second, or third input units 12, 14, and 16, respectively. In response to), the input information is transmitted to the other control module through the communication line.

The driving units of the first, second, and third control modules 42, 44, and 46 respectively output driving signals CON1, CON2, and CON3 for driving the corresponding loads in response to the control signals. . The driving unit may be configured as a relay switch or the like. In addition, the driving unit of the first control module 42 serves to transfer power to the driving units of the second and third control modules 44 and 46. Although not shown, generally, a fuse or the like is provided inside the driving unit of the first control module 42 to prevent an overcurrent from flowing to the driving units of the second and third control modules 44 and 46. Also, in general, when the driving unit in the first, second, and third control modules 42, 44, and 46 outputs the driving signals CON1, CON2, and CON3, the first load may be caused by an overcurrent. 32) and / or overcurrent preventing means for preventing overcurrent such as a fuse in order to prevent damage to a wiring or the like from which the driving signals CON1 are output.

That is, in the electronic control system of the present invention shown in FIG. 2, the first load 32 in the engine room area is the first control module 42 disposed in the engine room area, and the second load 34 in the dashboard area is the instrument panel. The second control module 44 arranged in the area is controlled by the third control module 46 arranged in the trunk area by the third load 36 of the trunk area.

In addition, the input signals IN1 output from the first input unit 12 located in the engine room area are input to the first control module 42 disposed in the engine room area, and the second input unit ( Input signals IN2 output from 14 are input to the second control module 44 disposed in the instrument panel region, and input signals IN3 output from the third input unit 16 positioned in the trunk region are trunks. Input to the third control module disposed in the area. In addition, each of the control modules 42, 44, and 46 may provide information about the input signals IN1, IN2, and IN3 input from the first, second, and third input units 12, 14, and 16 through a communication line. Will be shared.

3 is a view for explaining an example in which the electronic control system of a vehicle of the present invention is mounted on a vehicle. In FIG. 3, IN1, IN2, and IN3 are respectively a first input unit 12, a second input unit 14, and The driving signals output from the first control module 42, the second control module 44, and the third control module 46 are input signals output from the third input unit 16 and CON1, CON2, and CON3, respectively. 21 represents a battery, and a dotted line represents a communication line.

Referring to Figure 3 when explaining the electronic control system of the vehicle of the present invention.

As described above, the first control module 42 is mounted in the engine compartment area, the second control module 44 is mounted in the instrument panel area, and the third control module 46 is mounted in the trunk area, respectively. And the third control modules 42, 44, 46 are connected via a communication line.

An example in which the electronic control system of the vehicle of the present invention operates with reference to FIGS. 2 and 3 is as follows.

For example, if the switch of the second input unit 14 is operated to turn on the tail light of the vehicle before operating the head lamp of the vehicle, the input signal IN2 is output from the second input unit 14 accordingly. . The control unit of the second control module 44 transmits the input information to the first control module 42 and the third control module 46 through the communication line in response to the input signal IN2, and the second control module ( A control signal is output to the drive unit of 44). The control unit of the first control module 42 and the third control module 46 outputs control signals to the driving units of the first control module 42 and the third control module 46 in response to the input information.

The driving units of the first, second, and third control modules 42, 44, and 46 output driving signals CON1, CON2, and CON3 in response to input control signals, respectively. That is, the driving unit of the first control module 42 generates a driving signal CON1 for turning on a vehicle headlight or the like located in front of the vehicle, and the driving unit of the second control module 44 includes a back light of the instrument panel. The driving signal CON2 for turning on the back is output, and the driving unit of the third control module 46 outputs the driving signal CON3 for turning on the taillight located at the rear of the vehicle.

As a result, in the electronic control system of the present invention, the communication line, the wiring from each input unit 12, 14, 16 to the closest control module 42, 44, 46, and each control module 42, 44, 46 Only the wiring from each to the adjacent loads is needed.

That is, the electronic control system of the present invention shown in Figs. 2 and 3 has to be installed to drive the loads by arranging the devices for operating the loads according to the positions of the loads to be operated rather than the functions, unlike the conventional systems. The wiring amount can be reduced. By sharing information on the signal input from each part of the vehicle through the communication line, the wiring can be simplified and the wiring amount can be reduced.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the present invention described in the claims below. It will be appreciated.

Therefore, the electronic control system of the inventive vehicle simplifies wiring by arranging devices for operating the loads according to the positions of the loads, and sharing information on the input signal input from each input unit through the communication line. The wiring amount can be reduced.

Claims (12)

A plurality of input units for outputting an input signal; And A plurality of control modules for transmitting input information through a communication line in response to the input signal, and outputting driving signals for operating a load in response to the input signal and the input information received through the communication line, The control module is an electronic control system of a vehicle, characterized in that connected via the communication line. The method of claim 1, wherein the plurality of control modules A controller configured to output the input information in response to the input signal, and output a control signal in response to the input signal and the input information; And And a driving unit for outputting the driving signal in response to the control signal. The method of claim 2, wherein the driving unit And an overcurrent preventing means for preventing overcurrent from flowing by the drive signal. The method of claim 1, wherein the plurality of input units A first input unit located in the engine room area; A second input unit positioned in the instrument panel region; And And a third input unit positioned in the trunk area. The method of claim 4, wherein the plurality of control modules A first control module located in the engine room area; A second control module located in the instrument panel region; And And a third control module located in the trunk area. The method of claim 5, wherein the first control module And an input signal output from the first input unit to drive loads located in the engine room region. The method of claim 5, wherein the second control module And an input signal output from the second input unit to drive loads located in the instrument panel region. The method of claim 5, wherein the third control module And an input signal output from the third input unit to drive loads located in the trunk area. A first input unit and a first control module located in the engine room area; A second input unit and a second control module positioned in the instrument panel region; And A third input unit and a third control module located in the trunk area; The first, second, and third control modules are connected to each other through a communication line, and output input information through the communication line in response to input signals input from the first, second, and third input units, respectively. Electronic control system of a vehicle, characterized in that. 10. The method of claim 9, wherein the first, second, and third control modules are A controller configured to output the input information in response to the input signal, and output a control signal in response to the input signal and the input information; And And a driving unit for outputting the driving signal in response to the control signal. The method of claim 10, wherein the driving unit And an overcurrent preventing means for preventing overcurrent from flowing by the drive signal. The apparatus of claim 10, wherein the first, second, and third control modules are An electronic control system for a vehicle, characterized by driving loads in an engine compartment region, an instrument panel region and a trunk region, respectively.