WO2022153862A1 - Dispositif embarqué - Google Patents

Dispositif embarqué Download PDF

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Publication number
WO2022153862A1
WO2022153862A1 PCT/JP2021/048671 JP2021048671W WO2022153862A1 WO 2022153862 A1 WO2022153862 A1 WO 2022153862A1 JP 2021048671 W JP2021048671 W JP 2021048671W WO 2022153862 A1 WO2022153862 A1 WO 2022153862A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
lamp body
lamp
power supply
light
Prior art date
Application number
PCT/JP2021/048671
Other languages
English (en)
Japanese (ja)
Inventor
博光 池田
真二 青山
Original Assignee
住友電装株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友電装株式会社 filed Critical 住友電装株式会社
Publication of WO2022153862A1 publication Critical patent/WO2022153862A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
    • B60Q1/38—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters

Definitions

  • the present disclosure relates to an in-vehicle device.
  • This application claims priority based on Japanese Application No. 2021-005147 filed on January 15, 2021, and incorporates all the contents described in the Japanese application.
  • the vehicle is equipped with, for example, a body ECU which is an in-vehicle ECU that controls body-related devices such as a wiper drive device, lighting devices inside and outside the vehicle, a door lock device, and a power window (for example, Patent Document 1). ..
  • the wiper drive device of Patent Document 1 includes an in-vehicle ECU and is driven by a control program applied to the in-vehicle ECU.
  • the in-vehicle device is an in-vehicle device mounted on a vehicle and controlling the drive of a lamp body including a front light body and a rear light body, and is connected to a power supply device mounted on the vehicle.
  • the front lamp body is connected by a communication line and a power supply line for distributing the power output from the power supply device
  • the rear lamp body is connected by the communication line or the power supply line.
  • FIG. 1 It is a schematic diagram which illustrates the structure of the vehicle-mounted system including the vehicle-mounted device (lamp ECU) according to the first embodiment. It is a block diagram which illustrates the internal structure of an in-vehicle device. It is a flowchart which illustrates the process of the control part of an in-vehicle device. It is a schematic diagram which illustrates the structure of the vehicle-mounted system including the vehicle-mounted device (light body ECU) and the like according to the second embodiment (side lamp body).
  • the drive device of Patent Document 1 has a problem that cables and the like related to communication and power supply to the light body device mounted on the vehicle are integrated, and consideration is not given to efficient arrangement for the light body device.
  • An object of the present disclosure is to provide an in-vehicle device capable of efficiently arranging a lamp body device mounted on a vehicle.
  • the in-vehicle device is an in-vehicle device mounted on a vehicle and controlling the drive of a lamp device including a front lamp body and a rear lamp body, and is a power supply device mounted on the vehicle. Is connected to the front lamp body by a communication line and a power supply line for distributing the electric power output from the power supply device, and is connected to the rear lamp body by the communication line or the power supply line. Will be done.
  • the in-vehicle device and all the lamp bodies included in the lamp body device are connected by a communication line or a power supply line. That is, the in-vehicle device once aggregates the communication lines or the power supply lines connected to each of the lamp bodies included in the lamp body device.
  • the wiring (communication line or power line) integrated by the in-vehicle device is arranged (extended) from the in-vehicle device to the front lamp body and the rear lamp body included in the lamp body device. Therefore, when arranging the communication line and the power supply line for the lamp body device mounted on the vehicle, these wirings can be integrated into the in-vehicle device and rectified, and the arrangement can be efficiently performed.
  • the in-vehicle device and the front lamp body and the rear lamp body may be connected by both a communication line and a power supply line.
  • the in-vehicle device is centered on the own device by connecting the own device, the front lamp body, and the rear lamp body by the communication line or the power supply line.
  • a star-shaped network topology is formed.
  • the vehicle-mounted device and the front lamp body and the rear lamp body included in the lamp body device are connected by a communication line or a power supply device to form a star-shaped network topology centered on the vehicle-mounted device.
  • the lamp body device includes a side lamp body, and the front lamp body, the rear lamp body, and the side lamp body included in the lamp body device are each included. And the power output from the power supply device is distributed to the front lamp body, the rear lamp body, and the lamp body connected by the power supply line in the side lamp body. do.
  • the lamp body device further includes a side lamp body in addition to the front lamp body and the rear lamp body.
  • the in-vehicle device is a front light body, a rear light body, and a side light included in the light body device based on the aggregated light body drive information for the light body device including the front light body, the rear light body, and the side light body. Since the drive of the body is individually controlled and the electric power is distributed (relayed) to these lamps, it is possible to comprehensively control the lamp device mounted on the vehicle.
  • the light body device includes an in-vehicle light body such as an illumination light or a room light
  • the in-vehicle device includes a front light body, a rear light body, and a side light. It may be a device that comprehensively controls a lighting device including a body and an in-vehicle lighting body.
  • the in-vehicle device is connected to the power supply device via an indoor electric box or an outdoor electric box, and is connected to either the indoor electric box or the outdoor electric box.
  • a fuse whose characteristics are determined according to the lamp device connected via the electric box is provided.
  • each electric box (indoor electricity)
  • the power lines extending from the box can be integrated by connecting to the in-vehicle device.
  • the indoor electric box is, for example, an electric box placed in a floor area or an instrument panel area below the floor panel of a vehicle.
  • the outdoor electric box is, for example, an electric box placed in the engine room area of a vehicle.
  • the in-vehicle device includes a communication unit for communicating with an in-vehicle ECU mounted on the vehicle, an input unit for inputting a signal from a switch connected to the own device, and the above-mentioned.
  • the control unit includes a control unit that controls the drive of the lamp body device, and the control unit collects lamp body drive information regarding a drive request of the lamp body device via the communication unit or the input unit.
  • the control unit of the in-vehicle device relates to a drive request of the lamp body device via, for example, a communication unit corresponding to CAN or Ethernet (registered trademark) or an input unit composed of an input / output I / F (interface).
  • the lamp drive information is aggregated.
  • the control unit of the in-vehicle device individually controls the drive of the front lamp body and the rear lamp body included in the lamp body device based on the aggregated lamp body drive information. That is, the in-vehicle device has a collection of functions for controlling all the lamp bodies included in the lamp body device, such as the front lamp body and the rear lamp body, and the vehicle-mounted device is a lamp that controls the lamp body device.
  • FIG. 1 is a schematic view illustrating the configuration of an in-vehicle system S including an in-vehicle device 1 (lamp ECU) and the like according to the first embodiment.
  • FIG. 2 is a block diagram illustrating the internal configuration of the vehicle-mounted device 1.
  • the vehicle-mounted system S includes a lamp body device 2 and an vehicle-mounted device 1 that controls the drive of the lamp body device 2, and the lamp body device 2 and the vehicle-mounted device 1 are connected by a power line and a communication line 5.
  • the in-vehicle device 1 relates to a switch 101 (lamp switch) for turning on or off the lamp body device 2, and lamp body drive information (related to a drive request of the lamp body device 2) based on the behavior of the vehicle C or the surrounding environment of the vehicle C. It is communicably connected to the vehicle-mounted ECU 3 that outputs information).
  • Various functions for comprehensively controlling the lamp body device 2 are integrated and mounted on the in-vehicle device 1, and the in-vehicle device 1 outputs a signal output from the switch 101 and an output from the in-vehicle ECU 3. All lamp drive information consisting of information (messages) is acquired and aggregated.
  • the in-vehicle device 1 functions as a lamp ECU that individually controls the drive of all lamps included in the lamp device 2, such as the front lamp 21 and the rear lamp 22, based on the aggregated lamp drive information (equivalent). )do.
  • the in-vehicle device 1 is connected to the power supply device 4 by a power supply line 41 via an indoor electric box 42 and an outdoor electric box 43.
  • the indoor electric box 42 and the outdoor electric box 43 include fuses (semiconductor fuses, molten fuses) whose fusing or breaking characteristics are determined based on the power consumption (rated current value) of the connected lamp device 2.
  • the in-vehicle device 1 functions as an electric distribution box by distributing (relaying) the electric power output from the power supply device 4 to each lamp body of the lamp body device 2.
  • the in-vehicle device 1 (light ECU) includes a control unit 11, a storage unit 12, a communication unit 13, and an input / output I / F 14.
  • a switch 101 such as a lamp switch operated by the operator of the vehicle C is connected to the input / output I / F 14 so as to be able to communicate with the communication line 5.
  • the front lamp body 21 and the rear lamp body 22 included in the lamp body device 2 are communicably connected to the input / output I / F 14 by the communication line 5.
  • the control unit 11 is composed of a CPU (Central Processing Unit), an MPU (Micro Processing Unit), or the like, and reads and executes programs and data stored in the storage unit 12 to perform control processing and the like.
  • CPU Central Processing Unit
  • MPU Micro Processing Unit
  • the storage unit 12 is composed of a volatile memory element such as a RAM (RandomAccessMemory) or a non-volatile memory element such as a ROM (ReadOnlyMemory), an EEPROM (Electrically ErasableProgrammableROM) or a flash memory.
  • the storage unit 12 stores the program and data for executing the program.
  • These programs and the like may store programs and the like read from a recording medium that can be read by the in-vehicle device 1. Further, these programs or the like may be downloaded from an external computer (not shown) connected to a communication network (not shown) and stored in the storage unit 12.
  • the storage unit 12 stores a program for exerting all control functions for all the lamps included in the lamp device 2. Therefore, all the control functions for the lamp body device 2 are integrated in the in-vehicle device 1, and the control functions include, for example, AHB (Active High Beam) control, ADB (adaptive driving beam) control, and DRL (Daytime Running Lamps). ) Control and ESS (Emergency Signal System) control are included.
  • the AHB control is a function that detects the headlights of an oncoming vehicle and the rear lamp of the preceding vehicle C based on an image captured by a COMS camera or the like, and controls the front lamp body 21 to switch from a high beam to a low beam.
  • the ADB control is a function of controlling the light distribution according to the presence status of an oncoming vehicle or a preceding vehicle based on a light distribution mode in which the front lamp body 21 is a high beam.
  • the DRL control is a function of reducing the illuminance of the front lamp body 21 in order to improve the visibility of the vehicle C (own vehicle) even during the daytime.
  • the ESS control is a function that automatically blinks a lamp such as a hazard lamp at high speed when a sudden brake is applied during traveling.
  • the in-vehicle ECU 3 In performing control based on the functions of these driving support systems, the in-vehicle ECU 3 provides information on the behavior of the vehicle such as sudden braking or information on the oncoming vehicle based on the sensor value or image output from the sensor or the COMS camera or the like. Information on the surrounding environment of the vehicle such as presence / absence is extracted, and lamp drive information is generated and output based on the extracted information.
  • the program stored in the storage unit 12 and executed by the control unit 11 includes a module group corresponding to all control functions for all the lamp bodies included in the lamp body device 2. Therefore, the functions for controlling the lamp body device 2 can be integrated into the vehicle-mounted device 1 (lamp body ECU), and the lamp body device 2 mounted on the vehicle C can be efficiently controlled.
  • the communication unit 13 is, for example, a CAN transceiver corresponding to the CAN protocol or an Ethernet PHY unit corresponding to a TCP / IP packet transmitted on the communication line 5 by an Ethernet cable.
  • a communication line 5 such as a CAN bus or an Ethernet cable is connected to the communication unit 13 according to the protocol used for communication.
  • the input / output I / F 14 is a communication interface for directly connecting to the in-vehicle device 1 (own device) by, for example, serial communication.
  • a communication line 5 composed of a wire harness such as a serial cable is connected to the input / output I / F 14, and the control signal generated by the control unit 11 is transmitted to the input / output I / F 14 via the input / output I / F 14 and the signal line. It is output to any of the lamp bodies (front lamp body 21, rear lamp body 22) included in the device 2.
  • one or more switches 101 are connected to the input / output I / F 14 by a communication line 5 composed of a wire harness such as a serial cable, and the control unit 11 is connected to the input / output I / O I / O.
  • the signal output from the switch 101 is acquired via / F14.
  • the input / output I / F 14 configured in this way corresponds to an input unit into which a signal from the switch 101 directly connected to the vehicle-mounted device 1 (own device) is input.
  • the switch 101 is directly connected to the in-vehicle device 1 (lamp ECU) via the input / output I / F 14, but the present invention is not limited to this.
  • the switch 101 such as a lamp switch is directly connected to, for example, an in-vehicle ECU 3 such as a body ECU, and the in-vehicle device 1 (lamp ECU) is output from the switch 101 (lamp switch) via the body ECU. It may be the one that acquires a signal.
  • the communication unit 13 corresponds to an input unit into which a signal from the switch 101 indirectly connected to the in-vehicle device 1 (own device) is input.
  • the lamp body device 2 includes a front lamp body 21 and a rear lamp body 22.
  • the front light body 21 is, for example, left and right front headlights and fog lamps provided in the front portion of the vehicle C.
  • the rear lamp body 22 is, for example, left and right tail lamps provided at the rear portion of the vehicle C.
  • the light source of the front lamp body 21 and the rear lamp body 22 is composed of, for example, a halogen lamp, a HID (High Intensity Discharge) lamp, or an LED lamp.
  • a halogen lamp for example, a mercury-dode, a mercury-dode, or a mercury-dode.
  • HID High Intensity Discharge
  • LED lamp for example, when the light source of the front lamp body 21 is an LED lamp, the front lamp body 21 may include an LCM (Light Control Module) corresponding to the LED lamp.
  • LCM Light Control Module
  • the front lamp body 21 is configured with a halogen lamp as a light source or an LED lamp as a light source, depending on the vehicle type or vehicle class.
  • the program stored in the storage unit 12 has a module corresponding to a function of driving and controlling the front lamp body 21 using a halogen lamp as a light source and a function of performing a drive control of the front lamp body 21 using an LED lamp as a light source. include.
  • the module of the program executed by the control unit 11 is determined, for example, at the manufacturing stage of the vehicle C according to the light source type of the light source device 2, and the control unit 11 determines the front lamp body 21 according to the type of the light source. Drive can be controlled.
  • the in-vehicle device 1 can be configured as a standard component (standard component) that can be applied to any light source of the halogen lamp and the LED lamp.
  • the in-vehicle ECU 3 includes a control unit, a storage unit, a communication unit, and an input / output I / F as in the in-vehicle device 1 (lamp ECU), and the sensor 31 or the in-vehicle load 32 is a communication line in the input / output I / F. It is connected by 5.
  • the sensor 31 is, for example, a brake sensor, an illuminance sensor, a CMOS camera, a LiDAR (Light Detection and Ranging), or the like, and sensor values or images output from these sensors 31 or the like are directly connected to the sensor 31.
  • the in-vehicle ECU 3 Acquired by the in-vehicle ECU 3.
  • the in-vehicle ECU 3 outputs the acquired sensor value or the like or data obtained by processing the sensor value or the like to another in-vehicle ECU 3 or the in-vehicle device 1 (lamp ECU) via the communication line 5.
  • the in-vehicle load 32 is, for example, an actuator (ACT) such as a motor, and is controlled by an in-vehicle ECU 3 directly connected to itself.
  • ACT actuator
  • the in-vehicle ECU 3 generates lamp drive information according to the behavior of the vehicle C or the surrounding environment of the vehicle C based on the acquired sensor value or image, and outputs the lamp drive information to the in-vehicle device 1 (lamp ECU). do.
  • the in-vehicle ECU 3 to which the illuminance sensor is connected determines day and night based on the output value (illuminance value outside the vehicle) output from the illuminance sensor, and if it is nighttime, the light that requests the front lamp body 21 to be turned on.
  • the body drive information is output to the in-vehicle device 1 (lamp ECU).
  • the functions of the driving support system such as the AHB are mainly executed by the vehicle-mounted device 1 driving and controlling the lamp body device 2 based on the lamp body driving information output from the vehicle-mounted ECU 3.
  • the power supply device 4 is an all-solid-state battery or an alternator including a lead battery, and applies (outputs), for example, a DC voltage of 12 V.
  • the power supply device 4 may be a high-voltage power storage device such as a lithium ion battery connected via a DCDC converter that steps down to a predetermined voltage.
  • the indoor electric box 42 and the outdoor electric box 43 are a junction box including a housing and a fuse housed in the housing.
  • the fuse may be, for example, a semiconductor fuse composed of FETs or the like, or a molten fuse (mechanical fuse).
  • the outdoor electric box 43 includes a fuse connected to the front lamp body 21.
  • the indoor electric box 42 includes a fuse connected to the rear lamp body 22.
  • the indoor electric box 42 is, for example, an electric box placed in a floor area or an instrument panel area below the floor panel of the vehicle C.
  • the outdoor electric box 43 is, for example, an electric box placed in the engine room area of the vehicle C.
  • the in-vehicle device 1 is provided downstream of the indoor electric box 42 or the outdoor electric box 43 provided with the fuse in the current flow direction, and the electric power distributed by the in-vehicle device 1 is used as the lamp body device. It is supplied to each lamp body (front lamp body 21, rear lamp body 22) in 2.
  • each electric box (indoor electric box 42).
  • the power supply line 41 extending from the outdoor electric box 43) can be integrated by connecting to the in-vehicle device 1 (lamp ECU).
  • the power supply line 41 integrated in the in-vehicle device 1 is extended to each of the lamp bodies (front lamp body 21 and rear lamp body 22) in the lamp body device 2 via the vehicle-mounted device 1. This makes it possible to rectify the power supply line 41 in the vehicle and efficiently arrange the power supply line 41.
  • the front lamp body 21 and the rear lamp body 22 are connected to the in-vehicle device 1 by the communication line 5 and the power supply line 41, but the present invention is not limited to this.
  • the in-vehicle device 1 and the front light body 21 and the rear light body 22 may be connected by either the communication line 5 or the power supply line 41.
  • the front light body 21 and the in-vehicle device 1 are connected by the communication line 5 and the power supply line 41, and are connected to the rear light body 22.
  • the in-vehicle device 1 may be connected by a communication line 5 or a power supply line 41.
  • the vehicle-mounted device 1 controls opening / closing (on / off) of a relay or the like connected (provided) to the power supply line 41. This may control the drive of the rear lamp body 22.
  • FIG. 3 is a flowchart illustrating the processing of the control unit 11 of the in-vehicle device 1.
  • the control unit 11 of the in-vehicle device 1 (light ECU) constantly performs the following processing in a start state (IG switch is on) or a stop state (IG switch is off) of the vehicle C, for example.
  • the control unit 11 of the in-vehicle device 1 aggregates the lamp body drive information (S101).
  • the control unit 11 constantly continues the process (standby process) of waiting for the signal output from the switch 101 via the input / output IF and the information (message) from the vehicle-mounted ECU 3 transmitted via the communication unit 13. ing.
  • These signals and information (messages) constitute the lamp drive information, and the control unit 11 acquires all the lamp drive information when the lamp drive information is output (transmitted).
  • all the lamp drive information output (transmitted) from the switch 101 and the vehicle-mounted ECU 3 is collected in the vehicle-mounted device 1.
  • the control unit 11 of the in-vehicle device 1 identifies the lamp body to be controlled based on the lamp body drive information (S102).
  • the control unit 11 identifies the lamp body (front lamp body 21, rear lamp body 22) to be controlled based on the signal pattern included in the lamp body drive information or the data stored in the payload of the message.
  • the control unit 11 of the in-vehicle device 1 generates a control signal in response to a drive request to the specified lamp body (S103).
  • the storage unit 12 of the vehicle-mounted device 1 stores a program for exerting a control function for all the lamp bodies included in the lamp body device 2, and the vehicle-mounted device 1 stores all the controls for the lamp body device 2. Functions are aggregated.
  • the control unit 11 responds to a drive request included in the lamp drive information output (transmitted) from the switch 101 or the vehicle-mounted ECU 3, for example, forward.
  • a control signal for instructing lighting, extinguishing, blinking, changing the illuminance, etc. of the lamp body 21 or the rear lamp body 22 is generated.
  • the control unit 11 of the in-vehicle device 1 outputs the generated control signal to the specified lamp body (S104).
  • the control unit 11 is attached to the front lamp body 21, the rear lamp body 22, or both lamp bodies, which are the lamp bodies that specify the generated control signal, for example, via the communication line 5 connected to the input / output I / F14. Output.
  • the front lamp body 21, the rear lamp body 22, or both lamp bodies that have received the control signal turn on or off a light source composed of a halogen lamp, an LED lamp, or the like based on the control signal.
  • the embodiments according to the present disclosure are exemplified in all respects, and a program executed by a control unit (computer) of an in-vehicle device (light ECU) is distributed and communicates on a single computer or across a plurality of computers. It may be deployed to run on multiple computers interconnected by a network.
  • FIG. 4 is a schematic view illustrating the configuration of the vehicle-mounted system S including the vehicle-mounted device 1 (light body ECU) and the like according to the second embodiment (side lamp body 23).
  • the lamp body device 2 further includes a side lamp body 23 and an in-vehicle lamp body 24 in addition to the front lamp body 21 and the rear lamp body 22.
  • the side lamp body 23 includes, for example, a winker or a hazard light.
  • the vehicle interior light body 24 includes, for example, an illumination light, a room light, and the like.
  • the fuses corresponding to (connected to) the side lamp body 23 and the vehicle interior lamp body 24 are housed in, for example, the indoor electric box 42.
  • the in-vehicle device 1 (lamp ECU) is connected to the front lamp 21, the rear lamp 22, the side lamp 23, and the vehicle interior lamp 24 included in the lamp device 2 by the power supply line 41 as in the first embodiment.
  • the power output from the power supply device 4 is distributed and supplied to the front lamp body 21, the rear lamp body 22, the side lamp body 23, and the vehicle interior lamp body 24.
  • the in-vehicle device 1 (light ECU) has the front light body 21, the rear light body 22, and the side lights included in the light body device 2 via the input / output I / F 14 and the communication line 5. It is communicatively connected to the body 23 and the vehicle interior light body 24.
  • each of the front lamp body 21, the rear lamp body 22, the side lamp body 23, and the vehicle interior lamp body 24 included in the lamp body device 2 centering on the in-vehicle device 1 (lamp body ECU) is concerned.
  • a star-shaped network topology is formed in which the in-vehicle device 1 (lamp ECU) is connected by the communication line 5 and the power supply line 41.
  • the program stored in the storage unit 12 of the in-vehicle device 1 (lamp ECU) and executed by the control unit 11 corresponds to all the control functions for all the lamps included in the lamp device 2 as in the first embodiment. Includes a group of modules. Therefore, the in-vehicle device 1 controls the control of the lamp body device 2 including the front lamp body 21, the rear lamp body 22, the side lamp body 23, and the vehicle interior lamp body 24, and controls each lamp body included in the lamp body device 2. It can be controlled comprehensively.
  • the front light body 21, the rear light body 22, the side light body 23, and the vehicle interior light body 24 are connected to the in-vehicle device 1 by the communication line 5 and the power supply line 41, but the present invention is limited to this. Not done.
  • the in-vehicle device 1 and the front light body 21, the rear light body 22, the side light body 23, and the vehicle interior light body 24 may be connected by either the communication line 5 or the power supply line 41.
  • the front light body 21 the rear light body 22, the side light body 23, and the vehicle interior light body 24 included in the light body device 2
  • the front light body 21 and the in-vehicle device 1 The rear light body 22, the side light body 23, and the in-vehicle light body 24, which are connected by the communication line 5 and the power supply line 41 and have fewer functions than the front light body 21, are mounted on the vehicle by the communication line 5 or the power supply line 41. It may be connected to the device 1.
  • the in-vehicle device 1 When the rear light body 22, the side light body 23, or the vehicle interior light body 24 is connected to the in-vehicle device 1 only by the power supply line 41, the in-vehicle device 1 is connected (provided) to the power supply line 41 or the like.
  • the opening / closing (on / off) of, the drive of the rear lamp body 22, the side lamp body 23, or the vehicle interior lamp body 24 may be controlled.
  • In-vehicle system 1 In-vehicle device (light ECU) 11 Control unit 12 Storage unit 13 Communication unit 14 Input / output I / F (input unit) 101 Switch 2 Light body device 21 Front light body 22 Rear light body 23 Side light body 24 In-vehicle light body 3 In-vehicle ECU 31 Sensor 32 In-vehicle load 4 Power supply unit 41 Power supply line 42 Indoor electric box 43 Outdoor electric box 5 Communication line

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un dispositif embarqué qui est monté sur un véhicule et commande l'entraînement d'un dispositif de corps d'éclairage comprenant des corps d'éclairage avant et des corps d'éclairage arrière. Ce dispositif embarqué est connecté à un dispositif d'alimentation électrique monté sur le véhicule, est connecté aux corps d'éclairage avant par l'intermédiaire de lignes d'alimentation électrique pour distribuer une puissance délivrée à partir du dispositif d'alimentation électrique et des lignes de communication, et est connecté aux corps d'éclairage arrière par l'intermédiaire des lignes d'alimentation électrique ou des lignes de communication.
PCT/JP2021/048671 2021-01-15 2021-12-27 Dispositif embarqué WO2022153862A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000016174A (ja) * 1998-07-03 2000-01-18 Hitachi Ltd 乗物用ランプ駆動装置及び駆動方法
JP2012076630A (ja) * 2010-10-01 2012-04-19 Autonetworks Technologies Ltd 車両用電子制御システム

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000016174A (ja) * 1998-07-03 2000-01-18 Hitachi Ltd 乗物用ランプ駆動装置及び駆動方法
JP2012076630A (ja) * 2010-10-01 2012-04-19 Autonetworks Technologies Ltd 車両用電子制御システム

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