KR100324823B1 - Electronic device control unit in car - Google Patents

Abstract

The present invention provides a single hybrid integrated circuit having an identical pin structure for an electronic device control unit in a vehicle, and more particularly, a master side interface module mounted in a vehicle master control unit and a slave side interface module mounted in a vehicle slave control unit. The present invention relates to an in-vehicle electronic device control unit which reduces the size of each control unit and enables mutual exchange. According to the in-vehicle electronic device control unit according to the present invention, the control unit is mounted in a master control unit of the vehicle. By implementing the master interface module and the slave interface module mounted in the slave control unit of the vehicle as a single hybrid integrated circuit having the same pin structure, respectively, the size of each control unit is reduced, thereby facilitating the implementation of the interface circuit. Due to the same pin structure Since it enables interchange between master / slave, it has an excellent effect of providing convenience for the operator.

Description

In-vehicle electronic control unit {ELECTRONIC DEVICE CONTROL UNIT IN CAR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic control unit in a vehicle, and more particularly, to a master side interface module mounted in a master control unit of a vehicle and a slave control unit of a vehicle. Slave-side interface modules installed in the control unit are implemented as a single hybrid integrated chip (IC) each having the same pin structure, which reduces the size of each control unit and enables mutual interchange. An electronic device control unit in a vehicle.

As is well known, vehicles being developed are becoming more and more electronic, and the necessity of communication between the electronic device control modules becomes important.

Here, looking at the types of electronic devices currently used in the vehicle, first of all, in terms of function, the engine control electronics, the power transmission control electronics, the brake control electronics, the suspension control electronics, the steering control electronics, Instrument Control Electronics, Equalizer Control Electronics, Passenger Protection Device Control Electronics, Comfort Convenience Electronics, Telecommunication Control Electronics, Power / Wire Harness Electronics, and Power / Wire Harness Diagnosis Systems Can be divided into

In this case, the engine control electronics may include gasoline engine control, diesel engine control, cooling fan control, and starting start circuit, and the power transmission control electronics may include automatic transmission, electronic clutch control, and 4. Wheel drive hydraulic control, and the like, and the brake control electronic device includes an antilock brake system (ABS), a drive wheel idle prevention control, and the like.

The suspension control electronics may include shock absorber damping force control, air suspension control, active suspension, and height control. The steering device control electronics may include 4WS (4 Wheel Steering) and power steering. Instrument control electronics include speed meters, tachometers, and monitor / warning devices.

On the other hand, the electronic device for controlling the equalizing device includes a headlight, a headlight leveling day time running light, a light disconnection detection, a flasher, a wiper / washer, a headlight washer, a door mirror cleaner, a shift lock (key interlock), a cruise control, and the like. The electronic device for controlling the passenger protection device includes an automatic seat belt, a seat belt pretensioner, an airbag, a head-up display, multi information, a trip meter, an audio system, an antenna, air conditioning, a rear window thermistor control, and a door (lock, unlock). Locks), remote doors (lock / unlock), and illuminated entries.

The comfort conformal electronic device may include a power seat, a steering wheel, a shoulder belt anchorage, a door mirror, a driving position memory, a wave window, a sunroof, a liquid crystal display mirror, a proximity warning, a vehicle distance warning, a rear monitoring device, a security system, Tire pressure drop detection, electric winch, and the like, and the information communication control electronic devices include automobile telephone, facsimile, and navigation.

The power / wire harness electronics may include a voltage regulator, a multiplex, and a constant voltage power supply, and the power / wire harness diagnosing electronics may include a 12V / 24V power system, an onboard diagnosis, and an offboard diamond. Gnosys.

On the other hand, the above-mentioned electronic devices mostly communicate with each other using a three-wire synchronous communication method, in order to enable this, all the electronic devices have an interface module.

However, in the related art, when the operator implements the interface module of each electronic device control unit of the vehicle, the circuit pattern is designed on the printed circuit board and the components are mounted according to the design pattern to configure the interface module. Due to the large volume, not only the size of the electronic device control unit is increased, but also due to this, it is difficult to implement the interface circuit of each control unit.

In addition, the interface module of each of the above-described conventional electronic device control unit design the circuit configuration of the master control unit and the slave control unit differently when the operator performs the circuit design work, so that the interchange between the master and the slave is impossible, There were many problems with discomfort.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a master side interface module mounted in a master control unit of a vehicle and a slave side interface module mounted in a slave control unit of a vehicle, respectively. By implementing a single hybrid integrated circuit having the same pin structure, to reduce the size of each control unit and to provide an in-vehicle electronic control unit to enable interchange.

In order to achieve the above object, the in-vehicle electronic device control unit of the present invention includes a master-side CPU for outputting a control signal for controlling various electronic devices in a vehicle and a time synchronization clock for synchronizing time with a slave control unit; And a master control unit having a master side interface module which is responsible for the interface between the slave control unit and the master side CPU. A slave side CPU which receives various electronic device control signals and a time synchronous clock outputted from the master control unit, generates a control response signal, and outputs the control response signal in synchronization with the time synchronous clock; An in-vehicle electronic device control unit comprising a plurality of slave control units each having a slave-side interface module for managing an interface between the master control units, and controlling various electronic devices of the vehicle,

The master interface module includes: a control signal transmitter which receives a control signal for controlling various electronic devices in the vehicle from the master CPU, adjusts the voltage to a transmission voltage level, and transmits the control signal to the slave control unit;

A time synchronous clock transmitter which receives a time synchronous clock for synchronizing time with the slave control unit at the master CPU, adjusts the voltage to a transmission voltage level, and transmits the same to the slave control unit; And

A control response signal receiving unit receives a control response signal from the slave control unit, adjusts the control response signal to the internal voltage level of the master CPU, and outputs the control response signal to the master CPU. Composed,

The plurality of slave side interface modules receive various electronic device control signals from the master control unit, and control the various electronic device control signals to internal voltage levels of the slave CPU, and then output the control signals to the slave CPU. Receiving unit;

A time synchronous clock receiver which receives the time synchronous clock from the master control unit, adjusts the time synchronous clock to the internal voltage level of the slave CPU, and outputs the clock to the slave CPU; And

The control response signal output from the slave CPU receives the control response signal transmitting unit for adjusting the voltage level for transmission and transmitting to the master control unit, characterized in that each configured as a single hybrid integrated circuit do.

1 is a functional block diagram showing a configuration of an in-vehicle electronic device control unit according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating a master-side interface module and a plurality of slave-side interface modules implemented in a single hybrid integrated circuit in the in-vehicle electronic device control unit according to FIG. 1.

<Explanation of symbols for the main parts of the drawings>

1000: master control unit 1100: master side CPU

1200: master interface module 1210: control signal transmission unit

1211: first voltage distribution circuit portion 1212: first transistor

1213: second voltage distribution circuit portion 1214: second transistor

1215: noise canceling and matching circuit unit 1220: time synchronous clock transmitter

1221: first voltage distribution circuit unit 1222: third transistor

1223: second voltage distribution circuit portion 1224: fourth transistor

1225: noise canceling and matching circuit unit 1230: control response signal receiver

1231: noise reduction and voltage level distribution circuit

1232: voltage level controller 2000: slave control unit

2100: slave side CPU 2200: slave side interface module

2210: control signal receiver

2211: noise reduction and voltage level distribution circuit

2212: voltage level controller 2220: time synchronous clock receiver

2221: noise reduction and voltage level distribution circuit

2222: voltage level controller 2230: control response signal transmitter

2231: first voltage distribution circuit section 2232: fifth transistor

2233: second voltage division circuit unit 2234: sixth transistor

2235: Noise canceling and matching circuit

C1, C2, C3, C4, C5, C6, C7, C8, C9: Condenser

D1, D2, D3, D4, D5, D6: Diode

R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16,

R17, R18, R19, R20, R21, R22, R23, R24: Resistor

Hereinafter, an in-vehicle electronic device control unit according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a functional block diagram of an in-vehicle electronic device control unit according to an embodiment of the present invention. The in-vehicle electronic device control unit according to an embodiment of the present invention includes a master side CPU 1100 and a master side interface module ( A master control unit 1000 having 1200; And a plurality of slave control units 2000 each having a slave side CPU 2100 and a slave side interface module 2200.

The master side central processor unit (hereinafter referred to as CPU) 1100 mounted in the master control unit 1000 is a time signal with a control signal and a slave control unit for controlling various electronic devices in the vehicle. It outputs a time synchronous clock (Clock) for matching to the master interface module 1200.

In addition, the master interface module 1200 mounted in the master control unit 1000 is responsible for the interface between the slave control unit 2000 and the master CPU 1100, the control signal transmitter 1210 , A time synchronous clock transmitter 1220, and a control response signal receiver 1230.

At this time, the control signal transmitter 1210 mounted in the master interface module 1200 receives 5V of various electronic device control signals output from the master CPU 1100 and adjusts the control voltage to 12V which is a transmission voltage level. And transmits to the slave control unit 2000 through an external data bus, and includes a first voltage division circuit unit 1211, a first transistor 1212, a second voltage division circuit unit 1213, and a second voltage division circuit unit 1213. And a transistor 1214 and a noise canceling and matching circuit portion 1215.

In the first voltage distribution circuit unit 1211 mounted in the control signal transmitter 1210 of the master interface module 1200, resistors R1 and R2 are connected in parallel to the signal output terminal of the master CPU 1100. After receiving various electronic device control signals output from the master CPU 1100, the signal level is divided to an appropriate level and outputted to the first transistor 1212.

In addition, in the first transistor 1212 mounted in the control signal transmitter 1210, a base terminal is connected to the first voltage distribution circuit unit 1211, and an emitter terminal is grounded. When the electronic device control signal is input from the first voltage distribution circuit unit 1211, the electronic device is turned on to serve as a switch for passing the various electronic device control signals to the second transistor 1214.

On the other hand, in the second voltage distribution circuit unit 1213 mounted in the control signal transmitter 1210, the resistors R3 and R4 are connected in parallel to the collector terminal of the first transistor 1212, and the battery is battery. ) After inputting the voltage, the battery voltage is divided into a proper level and output to the second transistor 1214.

The second transistor 1214 mounted in the control signal transmitter 1210 has a base terminal connected to the second voltage distribution circuit 1213 and an emitter terminal connected to a battery voltage applying unit. After receiving the various control signals of the electronic device of 5V passing through the transistor 1212 to amplify to 12V, the transmission voltage level, and serves to output to the noise removing and matching circuit unit 1215.

The noise canceling and matching circuit unit 1215 mounted in the control signal transmitter 1210 has a resistor R5 and a capacitor C1 connected in parallel to the collector terminal of the second transistor 1214. A diode D1 is connected in parallel to the resistor R5 to receive various electronic device control signals amplified to a 12V voltage level through the second transistor 1214 to remove noise after removing noise. It outputs to the slave control unit 2000 using a data bus.

On the other hand, the time synchronization clock transmitter 1220 mounted in the master interface module 1200 receives the 5V time synchronization clock output from the master CPU 1100, and adjusts it to 12V which is a voltage level for transmission. It transmits to the slave control unit 2000 through an external clock bus, and includes a first voltage divider circuit 1221, a third transistor 1222, a second voltage divider circuit 1223, and a fourth transistor 1224. And a noise canceling and matching circuit portion 1225.

At this time, the first voltage distribution circuit 1221 mounted in the time synchronous clock transmitter 1220 of the master side interface module 1200 has the resistors R6 and R7 parallel to the signal output terminal of the master CPU 1100. After receiving the time-synchronized clock outputted from the master CPU 1100, the signal level is divided to an appropriate level and output to the third transistor 1222.

In addition, the third transistor 1222 mounted in the time synchronous clock transmitter 1220 has a base terminal connected to the first voltage divider circuit 1221 and an emitter terminal grounded so that the first voltage divider circuit unit ( When the time synchronization clock is input from 1221, the time synchronization clock is turned on, and thus serves as a switch for passing the time synchronization clock to the fourth transistor 1224.

On the other hand, the second voltage distribution circuit unit 1223 mounted in the time synchronous clock transmitter 1220 has resistors R8 and R9 connected to the collector terminals of the third transistor 1222 in parallel to receive the battery voltage. Thereafter, the battery voltage is distributed to an appropriate level to output the fourth transistor 1224.

The fourth transistor 1224 mounted in the time synchronous clock transmitter 1220 has a base terminal connected to the second voltage divider circuit 1223 and an emitter terminal connected to a battery voltage applying unit. It receives a 5V time-synchronized clock that has passed through the three transistors 1222 and amplifies it to 12V, which is a transmission voltage level, and outputs the noise to the matching circuit unit 1225.

The noise canceling and matching circuit unit 1225 mounted in the time synchronous clock transmitter 1220 has a resistor (R10) and a capacitor (C2) connected in parallel to the collector terminal of the fourth transistor 1224 and at the same time a resistor ( A diode D2 is connected in parallel to R10 to receive a time-synchronized clock amplified to a 12V voltage level through the fourth transistor 1224, remove noise, and use the external clock bus to remove the noise. 2000).

On the other hand, the control response signal receiver 1230 mounted in the master interface module 1200 receives the control response signal from the slave control unit 2000, and adjusts to the internal voltage level of the master CPU 1100. The control response signal is then outputted to the master CPU 1100. The control response signal includes a noise canceling and voltage level distribution circuit 1231 and a voltage level adjusting unit 1232.

In this case, the noise canceling and voltage level distribution circuit unit 1231 mounted in the control response signal receiving unit 1230 of the master interface module 1200 may include a capacitor C3 and a resistor (C3) and a resistor () at the signal output terminal of the slave control unit 2000. R11 is connected in parallel and a resistor R12 is connected in parallel with the resistor R11, and a capacitor C4 and a resistor R13 are connected in parallel with the resistor R12. And removes the noise of the control response signal transmitted from the control panel), and adjusts the level of the control response signal to an appropriate level and then outputs the voltage to the voltage level controller 1232.

In addition, the voltage level adjusting unit 1232 mounted in the control response signal receiving unit 1230 has a diode having a cathode connected to a 5V voltage applying unit and an anode connected to the noise removing and voltage level distribution circuit unit 1231. D3), and adjusts the voltage level of the control response signal output from the noise canceling and voltage level distribution circuit unit 1231 to 5V, the internal voltage level of the master-side CPU 1100, and then the master-side CPU 1100. It prints in).

Meanwhile, each slave side CPU 2100 mounted in the plurality of slave control units 2000 receives various electronic device control signals and time synchronization clocks output from the slave side interface module 2200 and generates a control response signal. After that, the control response signal is synchronized with the time synchronization clock to output the slave side interface module 2200.

In addition, each slave side interface module 2200 mounted in the plurality of slave control units 2000 is responsible for the interface between the slave-side CPU 2100 and the master control unit 1000, the control signal receiving unit 2210, time synchronous clock receiver 2220, and control response signal transmitter 2230, respectively.

At this time, the control signal receiver 2210 mounted in the slave-side interface module 2200 receives various electronic device control signals from the master control unit 1000 and transmits the various electronic device control signals to the slave-side CPU 2100. After controlling to the internal voltage level of the control panel) and outputs to the slave-side CPU 2100, it is composed of a noise removing and voltage level distribution circuit unit 2211, voltage level control unit 2212.

The noise canceling and voltage level distribution circuit unit 2211 mounted in the control signal receiving unit 2210 of the slave interface module 2200 has a capacitor C5 and a resistor R14 at a signal output terminal of the master control unit 1000. Simultaneously connected in parallel, a resistor R15 is connected in parallel with the resistor R14, and a capacitor C6 and a resistor R16 are connected in parallel with the resistor R15, and are transmitted from the master control unit 1000. When various electronic device control signals are input through an external data bus, the noise of the various electronic device control signals is removed, the control signal level is adjusted to an appropriate level, and then output to the voltage level adjusting unit 2212. Play a role.

In addition, the voltage level adjusting unit 2212 mounted in the control signal receiving unit 2210 has a cathode connected to a 5V voltage applying unit and an anode connected to the noise removing and voltage level distribution circuit unit 2211. D4), and adjusts the voltage level of various electronic device control signals output from the noise canceling and voltage level distribution circuit unit 2212 to 5V, which is an internal voltage level of the slave-side CPU 2100, and then the slave-side CPU. It serves to output to (2100).

Meanwhile, the time synchronous clock receiver 2220 mounted in the slave side interface module 2200 receives the time synchronous clock from the master control unit 1000 and simultaneously receives the time synchronous clock of the slave side CPU 2100. After adjusting to the internal voltage level, and serves to output to the slave-side CPU (2100), it is composed of a noise removing and voltage level distribution circuit unit 2221, voltage level control unit 2222.

At this time, the noise canceling and voltage level distribution circuit unit 2221 mounted in the time synchronization clock receiving unit 2220 of the slave side interface module 2200 has a capacitor (C7) and a resistor ( R17 is connected in parallel and a resistor R18 is connected in parallel with the resistor R17, and a capacitor C8 and a resistor R19 are connected in parallel with the resistor R18, and the master control unit 1000 When the time synchronization clock signal transmitted from) is input through the external data bus, the noise of the time synchronization clock is removed, and the time synchronization clock level is adjusted to an appropriate level and then output to the voltage level controller 2222. Do it.

In addition, the voltage level adjusting unit 2222 mounted in the time synchronous clock receiving unit 2220 includes a cathode connected to a 5V voltage applying unit and an anode connected to the noise removing and voltage level distribution circuit unit 2221. And a voltage level of the time synchronization clock output from the noise canceling and voltage level distribution circuit unit 2221 to 5V, which is an internal voltage level of the slave-side CPU 2100, and then the slave-side CPU ( 2100).

On the other hand, the control response signal transmitter 2230 mounted in the slave side interface module 2200 receives a control response signal of 5V output from the slave side CPU 2100, and adjusts the voltage to a transmission voltage level of 12V. It transmits to the master control unit 1000 via an external data bus, and includes a first voltage division circuit unit 2231, a fifth transistor 2232, a second voltage division circuit unit 2333, and a sixth transistor 2234. And a noise canceling and matching circuit section 2235.

At this time, the first voltage distribution circuit 2223 mounted in the control response signal transmitter 2230 of the slave-side interface module 2200 has the resistors R20 and R21 parallel to the signal output terminal of the slave-side CPU 2100. The controller is connected to receive the control response signal output from the slave side CPU 2100, and then distributes the control response signal to an appropriate level to output to the fifth transistor 2232.

In addition, the fifth transistor 2232 mounted in the control response signal transmitter 2230 has a base terminal connected to the first voltage divider circuit 2223 and an emitter terminal is grounded, so that the first voltage divider circuit ( When the control response signal is input from 2231, the control response signal is turned on so that the control response signal passes through the sixth transistor 2234.

On the other hand, the second voltage distribution circuit unit 2333 mounted in the control response signal transmitter 2230 has resistors R22 and R23 connected in parallel to the collector terminals of the fifth transistor 2232 to receive the battery voltage. Thereafter, the battery voltage is distributed to an appropriate level to output the sixth transistor 2234.

In addition, in the sixth transistor 2234 mounted in the control response signal transmitter 2230, a base terminal is connected to the second voltage distribution circuit 2233, and an emitter terminal is connected to a battery voltage applying unit. A 5V control response signal passing through the transistor 2232 is input and amplified to a transmission voltage level of 12V, and then outputs the noise elimination and matching circuit unit 2235.

The noise canceling and matching circuit unit 2235 mounted in the control response signal transmitting unit 2230 is connected to the collector terminal of the sixth transistor 2234 and the resistor R24 and the capacitor C9 in parallel with the resistor ( A diode D6 is connected to R24 in parallel, receives a control response signal amplified through the sixth transistor 2234, removes noise, and outputs the noise to the master control unit 1000 using an external data bus. Play a role.

Meanwhile, as illustrated in FIG. 2, the master side interface module 1200 mounted in the master control unit 1000 and the slave side interface module 2200 mounted in the plurality of slave control units 2000 are respectively shown in FIG. 2. Implemented as one single hybrid integrated circuit with the same pin structure to enable interchange

At this time, the pin structure of the master interface module 1200 implemented as a single hybrid integrated circuit is as shown in Table 1 below, pin 1 is used for the battery voltage application (Vbat), pin 2 is an empty pin Pin 3 is used for 5V voltage application (5V), Pin 4 is for connection between the signal output terminal of the control response signal receiving unit 1230 and the signal input terminal of the master CPU 1100 (SCI- IN-CPU), pin 5 is used as a connection between the signal input terminal of the control response signal receiver 1230 and an external data bus (SCI-IN-DATA BUS), and pins 6 and 11 are grounded. Pin 7 is used as a connection between the signal output terminal of the control signal transmitter 1210 and an external data bus (SCI-OUT-DATA BUS), and pin 8 is the control signal transmitter 1210. For signal connection between the signal input terminal and the signal output terminal of the CPU 1100 (SCI-OUT). Pin 9 is used as a connection between the signal input terminal of the time synchronization clock transmitter 1220 and the signal output terminal of the master CPU 1100 (SCK-OUT-CPU). The pin structure is set to be used as a connection between the signal output terminal of the time synchronous clock transmitter 1220 and an external data bus (SCK-OUT-DATA BUS).

Pin structure Integrated circuit of master side interface module Pin 1 Vbat Pin 2 Ball pin Pin 3 5 V 4 pin SCI-IN-CPU Pin 5 SCI-IN-DATA BUS Pin 6 GND Pin 7 SCI-OUT-DATA BUS Pin 8 SCI-OUT-CPU Pin 9 SCK-OUT-CPU Pin 10 SCK-OUT-DATA BUS Pin 11 GND

In addition, the pin structure of the slave-side interface module 2200 implemented as a single hybrid integrated circuit, as shown in Table 2 below, pin 1 is used for battery voltage application (Vbat), pin 2 is an empty pin. Pin 3 is used for 5V voltage application (5V), and pin 4 is for connection between the signal output terminal of the control signal receiver 2210 and the signal input terminal of the slave CPU 2100 (SCI-IN). -CPU), pin 5 is used as a connection between the signal input terminal of the control signal receiver 2210 and an external data bus (SCI-IN-DATA BUS), pins 6 and 11 are for ground Pin 7 is used as a connection between the signal output terminal of the control response signal transmitter 2230 and an external data bus (SCI-OUT-DATA BUS), and pin 8 is the control response signal transmitter (GCI). Between the signal input terminal of the 2230 and the signal output terminal of the slave CPU 2100 Pin 9 is used as a connection between the signal output terminal of the time synchronization clock receiving unit 2220 and the signal input terminal of the master CPU 1100 (SCK-IN-CPU). Pin 10 sets the pin structure to be used as a connection between the signal input terminal of the time synchronization clock receiver 2220 and an external data bus (SCK-IN-DATA BUS).

Pin structure Integrated circuit of slave side interface module Pin 1 Vbat Pin 2 Ball pin Pin 3 5 V 4 pin SCI-IN-CPU Pin 5 SCI-IN-DATA BUS Pin 6 GND Pin 7 SCI-OUT-DATA BUS Pin 8 SCI-OUT-CPU Pin 9 SCK-IN-CPU Pin 10 SCK-IN-DATA BUS Pin 11 GND

Next, an operation process of the in-vehicle electronic device control unit having the above configuration will be described with reference to FIG. 1.

First, the master side CPU 1100 mounted in the master control unit 1000 supplies a control signal for controlling various electronic devices in a vehicle and a time synchronization clock for synchronizing time with a slave control unit. Output at (1200).

Then, the control signal transmitter 1210 mounted in the master side interface module 1200 receives various electronic device control signals output from the master side CPU 1100 and receives corresponding slaves from the plurality of slave control units 2000. Output to the control unit 2000.

In this case, the electronic device control signal transmission operation of the control signal transmission unit 1210 described above will be described in more detail. First, the first voltage distribution circuit unit 1211 mounted in the control signal transmission unit 1210 is the master CPU. After receiving various electronic device control signals outputted at 1100, the signal levels are divided into appropriate levels and outputted to the first transistor 1212. Then, the first transistor 1212 is turned on by the various electronic device control signals output from the first voltage distribution circuit unit 1211, thereby passing the various electronic device control signals to the second transistor 1214. Subsequently, the second transistor 1214 is driven by a battery voltage output from the second voltage distribution circuit unit 1213 and receives and transmits various electronic control signals of 5V passing through the first transistor 1212. Amplify to 12V, the credit voltage level. The second transistor 1214 then outputs the various electronic device control signals amplified to 12V to the noise canceling and matching circuit unit 1215. Subsequently, the noise removing and matching circuit unit 1215 receives various electronic device control signals output from the second transistor 1214, removes noise, and transmits the noise to the corresponding slave control unit 2000 through an external data bus. .

In addition, the time synchronization clock transmitter 1220 mounted in the master interface module 1200 receives the time synchronization clock output from the master CPU 1100 to control a corresponding slave among the plurality of slave control units 2000. Output to the unit 2000.

In this case, the time synchronization clock transmission operation of the time synchronization clock transmitter 1220 will be described in more detail. First, the first voltage distribution circuit unit 1221 mounted in the time synchronization clock transmitter 1220 may be configured as the master CPU. After receiving the time-synchronized clock output from 1100, the signal level is divided into a proper level and output to the third transistor 1222. Then, the third transistor 1222 is turned on by the time synchronization clock output from the first voltage distribution circuit portion 1221, thereby passing the time synchronization clock to the fourth transistor 1224. Subsequently, the fourth transistor 1224 is driven by the battery voltage output from the second voltage distribution circuit unit 1223 and receives a 5V time synchronous clock which has passed through the third transistor 1222 and receives a transmission voltage. Amplify to 12V. Thereafter, the fourth transistor 1224 outputs the time synchronization clock to the noise canceling and matching circuit unit 1225. Subsequently, the noise removing and matching circuit unit 1225 receives the time synchronization clock output from the fourth transistor 1224, removes the noise, and transmits the noise to the corresponding slave control unit 2000 through an external data bus.

Then, the control signal receiver 2210 mounted in the slave side interface module 2200 of the slave control unit 2000 controls the various electronic devices transmitted from the control signal transmitter 1210 of the master side interface module 1200. The signal is received and output to the slave CPU 2100.

In this case, the operation of receiving the various electronic device control signals of the control signal receiver 2210 will be described in more detail. First, the noise canceling and voltage level distribution circuit unit 2211 mounted in the control signal receiver 2210 is the master. When various electronic device control signals transmitted from the control unit 1000 are input through an external data bus, noise is removed after receiving the various electronic device control signals. Thereafter, the noise canceling and voltage level distribution circuit unit 2211 adjusts the level of the various electronic device control signals to an appropriate level and then outputs it to the voltage level adjusting unit 2212. Then, the voltage level controller 2212 adjusts the voltage level of various electronic device control signals output from the noise canceling and voltage level distribution circuit unit 2212 to 5V, which is an internal voltage level of the slave-side CPU 2100. After that, it outputs to the slave side CPU 2100.

In addition, the time synchronization clock receiver 2220 mounted in the slave side interface module 2200 of the slave control unit 2000 transmits the time synchronization signal transmitted from the time synchronization clock transmitter 1220 of the master interface module 1200. The clock is received and output to the slave CPU 2100.

At this time, the time synchronization clock receiving operation of the time synchronization clock receiving unit 2220 will be described in more detail. First, the noise canceling and voltage level distribution circuit unit 2221 mounted in the time synchronization clock receiving unit 2220 is the master. When the time synchronization clock transmitted from the control unit 1000 is input through the external data bus, the noise of the time synchronization clock is removed. Thereafter, the noise canceling and voltage level distribution circuit unit 2221 adjusts the level of the time synchronization clock to an appropriate level, and then outputs it to the voltage level adjusting unit 2222. Subsequently, the voltage level adjusting unit 2222 adjusts the voltage level of the time synchronization clock output from the noise removing and voltage level distribution circuit unit 2221 to 5V, which is an internal voltage level of the slave-side CPU 2100. Output to slave side CPU 2100.

Then, each slave side CPU 2100 mounted in the plurality of slave control units 2000 may control various electronic device control signals and the time synchronous clock output from the control signal receiver 2210 of the slave side interface module 2200. After receiving the time-synchronized clock output from the receiver 2220, a control response signal corresponding to various electronic device control signals is generated. Thereafter, the slave side CPU 2100 synchronizes the control response signal with a time synchronization clock and outputs the control response signal to the control response signal transmitter 2230 in the slave interface module 2200.

Then, the control response signal transmitter 2230 in the slave interface module 2200 receives a 5V control response signal output from the slave CPU 2100, adjusts the voltage to a transmission voltage level of 12V, and then external data. It transmits to the master control unit 1000 via a bus.

In this case, the control response signal transmission operation of the control response signal transmission unit 2230 described above will be described in more detail. First, the first voltage distribution circuit unit 2231 mounted in the control response signal transmission unit 2230 is the slave CPU. After receiving the control response signal output from 2100, the control response signal is divided into voltages to an appropriate level and outputted to the fifth transistor 2232. Then, the fifth transistor 2232 receives the control response signal output from the first voltage distribution circuit unit 2231 and passes the control response signal to the sixth transistor 2234. Subsequently, the sixth transistor 2234 is driven by the battery voltage output from the second voltage distribution circuit section 2333 and receives a control response signal of 5V that has passed through the fifth transistor 2232. Amplify to 12V. Thereafter, the sixth transistor 2234 outputs the control response signal to the noise canceling and matching circuit unit 2235. Subsequently, the noise removing and matching circuit unit 2235 receives the control response signal output from the sixth transistor 2234, removes the noise, and transmits the noise to the master control unit 1000 through an external data bus.

Then, the control response signal receiver 1230 mounted in the master interface module 1200 receives the control response signal from the slave control unit 2000 and adjusts the internal response voltage level of the master CPU 1100. The control response signal is then output to the master CPU 1100.

At this time, the control response signal receiving operation of the control response signal receiving unit 1230 described above in more detail, first, the noise canceling and voltage level distribution circuit unit 1231 mounted in the control response signal receiving unit 1230 is a corresponding slave. The noise of the control response signal transmitted from the control unit 2000 is removed, and the level of the control response signal is adjusted to an appropriate level and then output to the voltage level adjusting unit 1232. Then, the voltage level adjusting unit 1232 adjusts the voltage level of the control response signal output from the noise removing and voltage level distribution circuit unit 1231 to 5V, which is an internal voltage level of the master CPU 1100, and then Output to the master side CPU 1100.

Therefore, the master control unit 1000 for controlling the various electronic devices and the plurality of slave control units 2000 perform data communication by the above-described operation process, and the interface module and the plurality of slaves in the master control unit 1000. The interface module in the control unit 2000 is implemented as a single hybrid integrated circuit having the same pin structure, respectively, so that the circuit can be easily implemented and the interchange between the master and the slave can be facilitated.

According to the in-vehicle electronic device control unit according to the present invention as described above, the master side interface module mounted in the master control unit of the vehicle and the slave side interface module mounted in the slave control unit of the vehicle each have a single pin structure. By implementing a hybrid integrated circuit, the size of each control unit can be reduced to facilitate the implementation of the interface circuit, and it also provides the user with convenience because it enables the interchange between master / slave due to the same pin structure. Excellent effect.

Claims (8)

Master side CPU for outputting control signals for controlling various electronic devices in the vehicle and time synchronization clock for synchronizing time with the slave control unit, and master side interface module for interfacing between the slave control unit and the master side CPU. A master control unit having a; A slave side CPU which receives various electronic device control signals and a time synchronous clock outputted from the master control unit, generates a control response signal, and outputs the control response signal in synchronization with the time synchronous clock; An in-vehicle electronic device control unit comprising a plurality of slave control units each having a slave-side interface module for managing an interface between the master control units, and controlling various electronic devices of the vehicle, The master interface module includes: a control signal transmitter which receives a control signal for controlling various electronic devices in the vehicle from the master CPU, adjusts the voltage to a transmission voltage level, and transmits the control signal to the slave control unit; A time synchronous clock transmitter which receives a time synchronous clock for synchronizing time with the slave control unit at the master CPU, adjusts the voltage to a transmission voltage level, and transmits the same to the slave control unit; And A control response signal receiving unit receives a control response signal from the slave control unit, adjusts the control response signal to the internal voltage level of the master CPU, and outputs the control response signal to the master CPU. Composed, The plurality of slave side interface modules receive various electronic device control signals from the master control unit, and control the various electronic device control signals to internal voltage levels of the slave CPU, and then output the control signals to the slave CPU. Receiving unit; A time synchronous clock receiver which receives the time synchronous clock from the master control unit, adjusts the time synchronous clock to the internal voltage level of the slave CPU, and outputs the clock to the slave CPU; And The control response signal output from the slave CPU receives the control response signal transmitting unit for adjusting the voltage level for transmission and transmitting to the master control unit, characterized in that each configured as a single hybrid integrated circuit In-vehicle electronic device control unit. The method of claim 1, The control data transmitter mounted in the master interface module has resistors R1 and R2 connected in parallel to the signal output terminal of the master CPU to receive various electronic device control signals output from the master CPU. A first voltage division circuit unit for dividing the signal level to an appropriate level and outputting the signal level; A first transistor connected to a base terminal of the first voltage divider circuit part and at the same time as an emitter terminal is grounded to receive various electronic device control signals from the first voltage divider circuit part to pass the various electronic device control signals; A second voltage dividing circuit unit having resistors R3 and R4 connected in parallel to the collector terminals of the first transistors, after receiving the battery voltages and dividing the battery voltages to an appropriate level; A base terminal is connected to the second voltage distribution circuit and an emitter terminal is connected to a battery voltage application unit. The controller receives a control signal of a variety of electronic devices that have passed through the first transistor, amplifies the signal to a transmission voltage level, and outputs the amplified voltage. A second transistor; And The resistor R5 and the capacitor C1 are connected in parallel to the collector terminal of the second transistor, and the diode D1 is connected in parallel to the resistor R5 to control various electronic devices amplified by the second transistor. And a noise removing and matching circuit unit configured to receive a signal, remove noise, and output the noise to the slave control unit. The method of claim 1, The time synchronization clock transmitter mounted in the master interface module has a resistor (R6, R7) connected in parallel to the signal output terminal of the master CPU, and receives the time synchronization clock output from the master CPU. A first voltage dividing circuit unit for dividing and outputting a level to an appropriate level; A third transistor connected to a base terminal of the first voltage dividing circuit part and grounded at an emitter terminal, and being turned on when the time synchronizing clock is input from the first voltage dividing circuit part to pass the time synchronizing clock; A second voltage distribution circuit unit having resistors R8 and R9 connected in parallel to the collector terminals of the third transistors, after receiving the battery voltages and dividing the battery voltages to appropriate levels; A fourth terminal configured to be connected to the base terminal of the second voltage distribution circuit and an emitter terminal of the battery voltage applying unit to receive the time-synchronized clock that has passed through the third transistor, amplify the voltage to a voltage level for transmission, and then output the fourth terminal; transistor; And A resistor R10 and a capacitor C2 are connected in parallel to the collector terminal of the fourth transistor, and a diode D2 is connected in parallel to the resistor R10 to obtain a time-synchronized clock amplified by the fourth transistor. In-vehicle electronic device control unit comprising a noise removing and matching circuit unit for receiving the input noise is removed and output to the slave control unit. The method of claim 1, The control response signal receiving unit mounted in the master side interface module has a capacitor C3 and a resistor R11 connected in parallel to the signal output terminal of the slave control unit, and a resistor R12 in parallel with the resistor R11. A capacitor C4 and a resistor R13 are connected in parallel to the resistor R12 to remove noise of the control response signal transmitted from the slave control unit and to adjust the level of the control response signal to an appropriate level. Noise elimination and voltage level distribution circuit for outputting after; And And a voltage level adjusting unit configured to adjust the voltage level of the control response signal output from the noise canceling and voltage level distribution circuit unit to the internal voltage level of the master CPU, and then output the voltage to the master CPU. In-vehicle electronic device control unit, characterized in that. The method of claim 1, A control signal receiving unit mounted in each of the plurality of slave side interface modules has a capacitor C5 and a resistor R14 connected in parallel to a signal output terminal of the master control unit, and a resistor R15 is connected to the resistor R14. A capacitor C6 and a resistor R16 are connected in parallel to the resistor R15 to remove noise of various electronic device control signals transmitted from the master control unit, and to adjust the level of the control signal. A noise removing and voltage level distribution circuit unit for outputting after adjusting to a level; And The voltage level of the diode D4 is adjusted to adjust the voltage level of various electronic device control signals output from the noise canceling and voltage level distribution circuit to the internal voltage level of the slave CPU. In-vehicle electronic device control unit, characterized in that consisting of. The method of claim 1, The time synchronous clock receivers respectively mounted in the plurality of slave side interface modules are connected to the signal output terminal of the master control unit with a capacitor C7 and a resistor R17 in parallel, and at the same time, a resistor R18 to the resistor R17. The capacitor R8 is connected in parallel and the capacitor C8 and the resistor R19 are connected in parallel to remove the noise of the time synchronization clock transmitted from the master control unit and to adjust the level of the time synchronization clock. A noise removing and voltage level distribution circuit unit for outputting after adjusting to a level; And And a voltage level adjusting unit configured to adjust the voltage level of the time synchronization clock output from the noise canceling and voltage level distribution circuit unit to the internal voltage level of the slave CPU, and then output the voltage to the slave CPU. In-vehicle electronic device control unit, characterized in that. The method of claim 1, The control response signal transmitters mounted in the plurality of slave side interface modules are connected to the signal output terminals of the slave CPUs in parallel to receive the control response signals output from the slave CPUs. A first voltage distribution circuit unit which divides and outputs the control response signal to an appropriate level; A fifth transistor connected to the first voltage distribution circuit part and grounded at the same time as the emitter terminal is grounded, and turned on when a control response signal is inputted from the first voltage distribution circuit part, thereby passing the control response signal; A second voltage dividing circuit unit having resistors R22 and R23 connected in parallel to the collector terminal of the fifth transistor to receive the battery voltage and divide and output the battery voltage to an appropriate level; A base terminal connected to the second voltage distribution circuit part and an emitter terminal connected to a battery voltage applying part, and receiving a control response signal passing through the fifth transistor, amplifying the signal to a transmission voltage level, and outputting the sixth output part; transistor; And A resistor R24 and a capacitor C9 are connected in parallel to the collector terminal of the sixth transistor, and a diode D6 is connected in parallel to the resistor R24 to output a control response signal amplified through the sixth transistor. In-vehicle electronic device control unit comprising a noise removing and matching circuit unit for receiving the input noise is removed and output to the master control unit. The method of claim 1, And a single hybrid integrated circuit of the master side interface module and a single hybrid integrated circuit of the plurality of slave interface modules are implemented in the same pin structure and interchangeable with each other.