JP5696637B2 - In-vehicle device control system - Google Patents

Description

  The present invention enables communication between a plurality of in-vehicle devices mounted on a vehicle and a control device that outputs an operation instruction signal for operating the plurality of in-vehicle devices via an in-vehicle local area network (in-vehicle LAN). The present invention relates to a connected in-vehicle device control system.

  For example, Patent Document 1 discloses a multiplex communication system that multiplexes transmission and reception of information between a switch display terminal in which an input switch and an information display unit are integrated and an external device. In this multiplex communication system, the external device includes various loads (lamps, etc.) and actuators (motors, solenoids, relays, etc.), as well as sensors and switches that detect abnormal conditions. In such a configuration, when the switch display terminal detects a switch input for instructing the operation of the external device, the instruction signal is transmitted to the external device by multiplex communication. On the other hand, when an abnormal state is detected by the sensor and the switch in the external device, the detection signal is transmitted to the switch display terminal, and a screen is displayed when the abnormal state occurs at the switch display terminal. As described above, in the multiplex communication system disclosed in Patent Document 1, multiplex communication is performed between the switch display terminal and the external device, thereby reducing the number of wire harnesses and saving space.

  It is also known that a control device controls in-vehicle devices including various actuators mounted on a vehicle using a multiplex communication network technology such as LIN. In this case, the control device and each in-vehicle device are individually connected to the multiplex communication network and given a unique ID number. And a control apparatus gives an operation instruction | indication with respect to a desired vehicle equipment by specifying the communication object which transmits / receives information using this ID number. Then, in response to receiving the operation instruction transmitted from the control device, the in-vehicle device returns a response signal indicating that the operation instruction has been received to the control device. Thereby, the control apparatus can recognize that the operation instruction has been transmitted to the desired in-vehicle device.

JP-A-62-2658

  As described above, when the control device and each in-vehicle device are individually connected to the multiplex communication network, the control device confirms that the operation instruction is definitely transmitted to the desired in-vehicle device. Returns a response signal. For this reason, each in-vehicle device is provided with a transmission circuit for in-vehicle LAN.

  However, the in-vehicle device including the load and the actuator has a basic role to operate in a mode according to the operation instruction signal from the control device, and usually some instruction is output from the in-vehicle device to other devices. Do not mean. That is, it is no exaggeration to say that the transmission circuit of the in-vehicle device including the load and the actuator is provided only for returning the response signal to the control device. Therefore, if the control device can confirm whether the operation instruction signal is correctly received by the desired in-vehicle device to be operated by any method other than receiving the response signal, the transmission circuit of each in-vehicle device Can be abolished and can contribute to cost reduction of the entire system.

  The present invention has been made in view of the above points. When a configuration in which the control device and each in-vehicle device are individually connected to the multiplex communication network is adopted, the control device is based on a response signal from each in-vehicle device. Therefore, an object of the present invention is to provide an in-vehicle device control system capable of confirming whether an operation instruction signal is correctly received by a desired in-vehicle device.

In order to achieve the above object, an in-vehicle device control system according to claim 1 includes a plurality of in-vehicle devices mounted on a vehicle, and a control device that outputs an operation instruction signal for operating the plurality of in-vehicle devices. Is connected to be communicable via the in-car local area network.
A power source that supplies power required when a plurality of in-vehicle devices operate;
Current detection means for detecting the magnitude of current flowing from a power source to a plurality of in-vehicle devices,
When a plurality of in-vehicle devices receive an operation instruction signal from the control device, they start operation according to the operation instruction signal after different times have passed,
From the time from when the control device outputs an operation instruction signal for operating a desired in-vehicle device to when the in-vehicle device starts to operate and the magnitude of the current detected by the current detecting means changes. It is characterized in that it is detected whether or not a desired in-vehicle device to be operated is correctly operated.

Thus, in-vehicle device control system according to claim 1, a plurality of vehicle equipment receives the operation instruction signal from the control device starts the operation in response to the actuation instruction signal after the elapse of different times Is set to For this reason, the control device outputs an operation instruction signal for operating a desired in-vehicle device, and from the time until the magnitude of the current changes after the in-vehicle device starts to operate, The device can be specified. Therefore, even if there is no response signal from the in-vehicle device, the control device can detect whether or not the desired in-vehicle device to be operated operates correctly.

  According to a second aspect of the present invention, when the magnitude of the current does not change within a predetermined time after the operation instruction signal is output to the desired vehicle-mounted device, the control device operates the desired vehicle-mounted device. It is preferable to output the operation instruction signal again, assuming that the instruction signal is not received.

  If the operation instruction signal is not normally received even though the control device has transmitted the operation instruction signal, the in-vehicle device does not start the operation, so that the magnitude of the current does not change. In other words, when the magnitude of the current does not change within a predetermined time from the output of the operation instruction signal, it can be considered that the operation instruction signal has not been received normally. Therefore, it is desirable that the control device outputs the same operation instruction signal again to operate a desired in-vehicle device.

  As described in claim 3, it is preferable that the predetermined time is set to be longer than the longest time among the time until the start of operation of the plurality of in-vehicle devices. As a result, when the magnitude of the current does not change until the predetermined time has elapsed, the operation instruction signal is not received by the desired in-vehicle device, and the operation instruction signal is transmitted to other in-vehicle devices. It can also be confirmed that the message has not been received in error.

  According to the fourth aspect of the present invention, the control device determines the desired time from the time until the magnitude of the current detected by the current detecting means changes after outputting the operation instruction signal to the desired in-vehicle device. When it is detected that an in-vehicle device other than the in-vehicle device is operated, it is desirable to output an operation instruction signal for returning the activated in-vehicle device to a state before the operation.

  The time from when each in-vehicle device receives the operation instruction signal to when the operation starts is different for each in-vehicle device. Therefore, the control device can detect which in-vehicle device is operated from the time from when the operation instruction signal is output until the magnitude of the current changes. When it is detected that an in-vehicle device other than the desired in-vehicle device has been operated, the operation is incorrect, so an operation instruction signal for returning to the state before the operation is sent to the operated in-vehicle device. Output.

  According to the fifth aspect of the present invention, when the magnitude of the current detected by the current detecting means changes, the control device takes into account the magnitude of the change, and the desired in-vehicle device to be operated correctly operates. It may be detected whether or not it has been done. This is because the current consumption in each in-vehicle device is known, so that the in-vehicle device that operates with higher accuracy can be identified by considering the magnitude of the detected change in current.

It is a block diagram which shows an example of a structure of the vehicle equipment control system by embodiment. It is a figure which shows the response time until it operates from the separate ID code defined with respect to each vehicle equipment, and each vehicle equipment after receiving an operation instruction signal. It is the block diagram which showed the internal structure of the master controller. It is the block diagram which showed the internal structure of the left front turn signal apparatus as an example of vehicle equipment. It is a flowchart which shows how each vehicle equipment is controlled by the master controller. The master controller transmits an operation instruction signal for instructing lighting to the left front turn signal device, and then transmits an operation instruction signal for instructing extinction, and further turns on the motor for the wiper device. When the operation instruction signal instructing the wiping operation by the wiper is transmitted at the speed, and then the operation instruction signal instructing the stop of the wiping operation by the wiper is transmitted by turning off the motor, each in-vehicle device receives the respective operation instruction. It is a time chart which shows the operation state of each vehicle equipment when it operates normally according to a signal and the malfunction of other vehicle equipment does not arise. Although the master controller has transmitted the operation instruction signal for instructing the left front turn signal device to turn on, not only the left front turn signal device but also the right front turn signal device 30 has been lit, so the right front turn signal device An operation instruction signal for instructing to turn off is transmitted to the right front turn signal device, and the operation instruction signal for instructing the right front turn signal device to turn off has caused the washer device motor to turn on and start operation. On the other hand, it is a time chart showing an example of malfunction that transmits an operation instruction signal instructing to turn off the motor and stop the operation. The master controller has sent an operation instruction signal for instructing lighting to the left front turn signal device, but the lighting operation has not been performed correctly. Therefore, the same operation instruction signal is retransmitted, and the operation instruction signal for instructing to turn off is also transmitted. It is a time chart which shows the example of the malfunction which transmitted the same operation instruction | indication signal since the light extinction operation | movement was not performed.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration diagram showing an example of the configuration of the in-vehicle device control system according to the present embodiment.

  As shown in FIG. 1, in the in-vehicle device control system of the present embodiment, a plurality of winker devices including a winker lamp and a turn-on / off circuit for turning on / off the winker lamp are provided as the on-vehicle device. That is, the left front turn signal device 20 that turns on and off the turn signal installed at the left front portion of the vehicle, the right front turn signal device 30 that turns on and off the turn signal installed at the front right portion, and the right that turns on and off the turn signal installed on the right side surface. A side turn signal device 40 and a left side turn signal device 70 for turning on and off a turn signal installed on the left side surface are provided. The turn signal device further includes a right rear turn signal device that turns on and off a turn signal installed at the right rear portion, and a left rear turn signal device that turns on and off the turn signal installed at the left rear portion, but the illustration is omitted. .

  Furthermore, in the in-vehicle device control system according to the present embodiment, as the in-vehicle device, a wiper device 50 including a wiper and a drive unit including a wiper motor for wiping the wiper, and a washer device including a washer pump for injecting a washer liquid to the front window. 60 is provided.

  These turn signal devices 20, 30, 40, 70, wiper device 50 and washer device 60 are individually connected to a multiplex communication network 100 such as a LIN (Local Interconnect Network).

  The master controller 10 outputs an operation instruction signal to a corresponding in-vehicle device via the multiplex communication network 100 in response to an operation of a switch or the like by a user of the vehicle. For example, when the winker switch is operated so that the right turn signal blinks by the user, the master controller 10 blinks with respect to the right front turn signal device 20 and the right side turn signal device 40 based on a signal from the turn signal switch. The operation instruction signal is output as follows. When the wiper switch is operated, an operation instruction signal is output so that the wiper performs a wiping operation at a speed instructed by the switch operation. Further, when the washer liquid injection switch is operated, an operation instruction signal for instructing the injection of the washer liquid is output to the washer device 60.

  As described above, each turn signal device 20, 30, 40, 70 as the in-vehicle device is specified so that the master controller 10 can specify the desired in-vehicle device and issue an operation instruction to the specified in-vehicle device. As shown in FIG. 2, unique ID codes are individually defined for the wiper device 50 and the washer device 60. The master controller 10 transmits an operation instruction signal including this ID code via the multiplex communication network 100.

  Here, in the present embodiment, as shown in FIG. 2, when each of the in-vehicle devices 20 to 70 receives the operation instruction signal from the master controller 10, it operates after a different response time has elapsed since the reception. Is set to start. For example, the left front winker device 20 is set to start operation after a response time T11 has elapsed, and the right front winker device 30 is set to start operation after a response time T21 has elapsed. Hereinafter, similarly, response times T12, T22, T31, and T32 are given to the respective in-vehicle devices, and these response times T11, T12, T21, T22, T31, and T32 are all different from each other. ing.

  As will be described in detail later, the master controller 10 measures the time from when an operation instruction signal for operating a desired in-vehicle device is output until one of the in-vehicle devices actually starts operating. It has the composition of. For this reason, the master controller 10 can specify the in-vehicle apparatus which act | operated from the measured time. Therefore, the control device can detect whether or not a desired in-vehicle device to be operated has been operated correctly without a response signal from the in-vehicle device via the multiplex communication network 100.

  Below, the internal structure of the left front winker apparatus 20 is demonstrated using FIG.3 and FIG.4 as an example of the master controller 10 and vehicle equipment. The internal configurations of other in-vehicle devices are almost the same except for the actuator portion when the drive target is different.

  First, FIG. 3 is a configuration diagram showing the internal configuration of the master controller 10. As shown in FIG. 3, the master controller 10 includes a current detection circuit 14 that is connected to a power supply line that supplies operating power from the in-vehicle battery 15 to each in-vehicle device and detects a current in the power supply line. Each of the above-mentioned in-vehicle devices is connected to the power line, and when one of the in-vehicle devices starts to operate, the current consumption increases accordingly, and when any of the in-vehicle devices stops operating, The current consumption is reduced by that amount. Therefore, the master controller 10 can detect that the in-vehicle device has started operating or has stopped operating based on the change in the magnitude of the current detected by the current detecting circuit 14.

  Note that the current detection circuit 14 can be configured by, for example, a shunt resistor connected in series to the power supply line and an A / D converter that converts the voltage across the shunt resistor into a digital value.

  The master controller 10 also receives the above-described vehicle-mounted from the reception I / F circuit 12 for receiving data transmitted to the master controller 10 via the multiplex communication network (communication line) 100 and the master controller 10. An operation instruction signal for the device and a transmission I / F circuit 13 for transmitting data to other controllers and the like are provided.

  The microcomputer 11 executes various processes according to a control program stored in a memory (not shown) and controls the operation of the above-described on-vehicle device. More specifically, the microcomputer 11 outputs an operation instruction signal to the in-vehicle device to be operated via the multiplex communication network 100, or whether the in-vehicle device to be operated according to the operation instruction signal has started operation. If an in-vehicle device that should operate is not operating, or an in-vehicle device that should not operate is operating, the inappropriate operating state is corrected.

  In order to execute such control, the microcomputer 11 has an internal timer that measures an elapsed time from the time when the operation instruction signal is output to any one of the in-vehicle devices. Moreover, the response time of each vehicle-mounted device is stored in the memory described above in association with each vehicle-mounted device. Therefore, the microcomputer 11 refers to the elapsed time measured by the internal timer when the magnitude of the current detected by the current detection circuit 14 changes, so that any on-vehicle device starts (or stops). ) Can be detected. As a result, for example, when an operation instruction signal is transmitted, it is possible to detect whether or not the in-vehicle device that is to be operated by the operation instruction signal has started operation as instructed.

  Note that the operation instruction signal output from the master controller 10 includes an ID code for specifying a target in-vehicle device and a command for instructing an operation mode (for example, lighting or extinguishing).

  Next, the left front turn signal device 20 will be described. FIG. 4 is a configuration diagram showing an internal configuration of the left front winker device 20. As shown in FIG. 4, the left front turn signal device 20 has a turn signal lamp 21, and by turning on or off the turn signal lamp 21 by supplying a drive current to the turn signal lamp 21 or stopping the supply of the drive current. A lamp driver circuit 22 for switching the state is included. The lamp driver circuit 22 supplies a drive current to the blinker lamp 21 or stops the supply in accordance with a lighting instruction or a lighting instruction from the microcomputer 23.

  The reception I / F circuit 24 receives an operation instruction signal from the master controller 10 via the multiplex communication network 100. As shown in FIG. 4, the left front winker device 20 that is an in-vehicle device is not provided with a transmission I / F circuit for transmitting data via the multiplex communication network 100.

  The microcomputer 23 executes various processes in accordance with a control program stored in a memory (not shown), and controls the operation of the winker device 20 as a whole. For example, when the operation instruction signal is received by the reception I / F circuit 24, the microcomputer 23 is based on an ID code included in the operation instruction signal and whether or not the operation instruction signal is directed to itself. Determine. For this determination, an individual ID code assigned to the memory is stored in the memory.

  When the microcomputer 23 determines that the operation instruction signal is directed to itself based on the ID code, the microcomputer 23 performs an operation according to the command included in the operation instruction signal. Specifically, according to the command, the lamp driver circuit 22 is instructed to turn on or turn off the blinker lamp 21.

  The memory also stores the corresponding response time among the response times given to each in-vehicle device shown in FIG. 2, and when the microcomputer 23 receives the operation instruction signal, the response time has elapsed. At the timing, the execution of the operation according to the command included in the operation instruction signal is instructed. For this reason, when each vehicle-mounted device receives the operation instruction signal, the vehicle-mounted device starts operation after a different response time has elapsed since the reception.

  Next, how each in-vehicle device is controlled by the master controller 10 will be described with reference to the flowchart of FIG. The process shown in the flowchart of FIG. 5 is mainly executed by the microcomputer 11 of the master controller 10.

  First, in step S <b> 100, an operation instruction signal for a desired in-vehicle device to be operated is generated based on a switch operation or the like by a vehicle occupant and transmitted via the multiplex communication network 100.

  In the subsequent step S110, an elapsed time after transmitting the operation instruction signal is measured using an internal timer. In step S120, it is determined whether or not the magnitude of the current detected by the current detection circuit 14, that is, the magnitude of the current consumption by the in-vehicle device has changed. If it is determined in step S120 that the current consumption has changed, the process proceeds to step S130. If it is determined that there is no change, the process proceeds to step S150.

  In step S130, the in-vehicle device that has been operated is specified based on the elapsed time until the current change measured by the internal timer. In step S140, it is determined whether the elapsed time measured by the internal timer has reached a predetermined time. This predetermined time is set to be equal to or longer than the longest response time among the response times given to each in-vehicle device. Therefore, if it is determined in step S140 that the predetermined time has not yet elapsed, there is still a possibility that any in-vehicle device will start operating, and the process returns to step S110. On the other hand, if it is determined that the predetermined time has elapsed, the process proceeds to step S170.

  Also in step S150 executed when it is determined in step S120 that there is no change in current consumption, it is determined whether the elapsed time measured by the internal timer has reached a predetermined time as in step S140. At this time, if it is determined that the predetermined time has not elapsed, any of the in-vehicle devices may still start operating, and the process returns to step S110. On the other hand, if it is determined that the predetermined time has elapsed, the process proceeds to step S160.

  In step S160, it is determined whether there is an in-vehicle device that has been activated until a predetermined time has elapsed. That is, before the predetermined time elapses, the process of step S130 is executed, and it is determined whether or not the in-vehicle device that has started operation is specified. In this determination process, when it is determined that the in-vehicle device that has been activated is not specified, the process returns to step S100. That is, when the predetermined time has passed without changing the current consumption, it can be considered that the operation instruction signal has not been received by the in-vehicle device of the transmission destination for some reason, so the process returns to step S100 and the same operation is performed again. An instruction signal is transmitted. On the other hand, if it is determined that the in-vehicle device that has been operated is specified, the process proceeds to step S170.

  Note that, as described above, by using a time set to be longer than the longest response time among the response times given to each in-vehicle device as the predetermined time, the operation instruction signal is transmitted to the desired in-vehicle device to be transmitted. It is possible to confirm the occurrence of various malfunctions such as when the device has not received the operation instruction signal or the other vehicle-mounted device has erroneously received the operation instruction signal.

  In step S170, it is determined whether or not only the correct in-vehicle device has operated in response to the operation instruction signal. That is, it is determined whether only the vehicle-mounted device specified by the ID code included in the operation instruction signal has been operated. In addition, as a mode in which it is determined that only the correct in-vehicle device is not operating, the correct in-vehicle device does not operate and other in-vehicle devices are operated, or the correct in-vehicle device is operated, but other This includes cases where in-vehicle equipment has also been activated.

  If it is determined in the determination process of step S170 that only the correct in-vehicle device is not operating, the process proceeds to step S180, and the operation instruction signal for returning to the pre-operation state for the in-vehicle device that has operated in error. Generate and send. Thereafter, the process returns to step S100. At this time, if the correct in-vehicle device is not operating, the same operation instruction signal is transmitted again.

  In FIG. 6, the master controller 10 transmits an operation instruction signal for instructing lighting to the left front turn signal device 20, and thereafter transmits an operation instruction signal for instructing extinction, and further to the wiper device 50. When the motor is turned on, an operation instruction signal for instructing the wiping operation by the wiper is transmitted at a certain speed, and then the operation instruction signal for instructing to stop the wiping operation by the wiper is transmitted. The time chart which shows the operation state of each vehicle equipment when an apparatus (the left front inker apparatus 20, the wiper apparatus 50) operate | moves normally according to each operation | movement instruction signal, and the malfunction of other vehicle equipment has not arisen. is there.

  In this case, the operation instruction signal for instructing lighting transmitted from the master controller 10 to the left front turn signal device 20 is normally received by the left front turn signal device 20. Then, the left front turn signal device 20 operates so that the turn signal lamp 21 is turned on when a preset response time T11 has elapsed from the reception of the operation instruction signal.

  Then, since the current consumption increases due to the turn-on of the turn signal lamp 21, the master controller 10 turns on the left front turn signal from the elapsed time from the time when the operation instruction signal is transmitted until the time when the change in the power consumption occurs. You can see what started.

  Then, when the turn-off timing of the turn signal lamp 21 is reached, an operation instruction signal for instructing turn-off is transmitted from the master controller 10 to the left front turn signal device 20, and the operation instruction signal is normally received by the left front turn signal device 20. When the response time T11 has elapsed since the reception, the left front turn signal device 20 operates to turn off the turn signal lamp 21. As a result, the current consumption is reduced, so that the master controller can grasp that the left front turn signal device 20 has been turned off from the time until the current consumption is reduced.

  The same applies to the wiper device 50. From the time until the current consumption increases or decreases, the master controller 10 grasps that the wiper device 50 has started the wiping operation and has stopped the wiping operation. Can do.

  Next, FIG. 7 shows that not only the left front turn signal device 20 but also the right front turn signal device 30 has been turned on even though the operation instruction signal for instructing lighting is transmitted to the left front turn signal device 20. 5 is a time chart showing an example in which an operation instruction signal for instructing to turn off is transmitted to the right front winker device 30. In the example shown in the time chart of FIG. 7, the motor of the washer device 60 is turned on by the operation instruction signal instructing to turn off the right front winker device, so that the operation is started. Also included is a situation in which an operation instruction signal for instructing to turn off the motor and stop the operation is transmitted.

  In the in-vehicle device control system according to the present embodiment, as described above, the time until each in-vehicle device starts to operate so that the time from when the in-vehicle device starts to operate after receiving the operation instruction signal is different. The response time is set. For this reason, in response to one operation instruction signal, not only the correct in-vehicle device that should operate originally, but also the other in-vehicle device has started to operate accidentally, the elapsed time when the current consumption has changed Therefore, it is possible to detect which in-vehicle device is erroneously activated. Therefore, the operation instruction signal for returning to the state before the operation start can be transmitted to the in-vehicle device that has started the operation by mistake.

  For example, since the current consumption increases when the response time T21 has elapsed from the output of the operation instruction signal that instructs the left front turn signal device 20 to turn on, the master controller 10 mistakenly determines that the right front turn signal device 30 It can be understood that the lighting has been activated. Therefore, the master controller 10 transmits an operation instruction signal for returning the light turn-off state before the operation to the right front winker device 30.

  Further, since the current consumption increases when the response time T32 has elapsed from the output of the operation instruction signal for instructing the right front turn signal device 30 to turn off, the master controller 10 erroneously operates the washer device 60. Can understand that has started. Therefore, the master controller 10 transmits an operation instruction signal for returning to the stop state before the operation to the washer device 60.

  Finally, in FIG. 8, the operation instruction signal for instructing lighting is transmitted to the left front winker device 20, but the lighting operation is not correctly performed. As for the instruction signal, the same operation instruction signal is retransmitted because the turn-off operation is not executed.

  As shown in FIG. 8, when the current consumption does not change in a predetermined response time, it can be assumed that the in-vehicle device to be transmitted has failed to receive the operation instruction signal for some reason. Therefore, in this case, the master controller 10 transmits the same operation instruction signal again. Thus, by repeating the transmission of the master controller 10 and the operation instruction signal, the vehicle-mounted device to be operated can be operated.

  However, even if the operation instruction signal is transmitted a predetermined number of times or more, if the in-vehicle device does not perform the instructed operation, there is a high possibility that the in-vehicle device or the like is broken. Therefore, in such a case, the transmission of the operation instruction signal may be stopped and a warning indicating that a failure has occurred may be given by an indicator or the like.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. .

  For example, in the above-described embodiment, the in-vehicle device that has been operated is specified only from the elapsed time from when the operation instruction signal is transmitted to when the current consumption changes. However, when the magnitude of the current detected by the current detection circuit 14 changes, the in-vehicle device that has been activated may be specified in consideration of the magnitude of the change. This is because the current consumption in each in-vehicle device is known, so that the in-vehicle device that operates with higher accuracy can be identified by considering the magnitude of the detected change in current.

10 Master controller 20, 30, 40, 70 Blinker device 50 Wiper device 60 Washer device

Claims (5)

In an in-vehicle device control system in which a plurality of in-vehicle devices mounted on a vehicle and a control device that outputs an operation instruction signal for operating the plurality of in-vehicle devices are communicably connected via an in-vehicle local area network ,
A power supply for supplying power required when the plurality of in-vehicle devices operate;
Current detection means for detecting the magnitude of current flowing from the power source to the plurality of in-vehicle devices,
The plurality of in-vehicle devices, when receiving the operation instruction signal from the control device, starts an operation according to the operation instruction signal after each different response time,
The control device outputs an operation instruction signal for operating a desired in-vehicle device, and then the in-vehicle device starts to operate until the magnitude of the current detected by the current detection means changes. A vehicle-mounted device control system characterized by detecting whether or not a desired vehicle-mounted device to be operated is operated correctly from time. In an in-vehicle device control system in which a plurality of in-vehicle devices mounted on a vehicle and a control device that outputs an operation instruction signal for operating the plurality of in-vehicle devices are communicably connected via an in-vehicle local area network ,
A power supply for supplying power required when the plurality of in-vehicle devices operate;
Current detection means for detecting the magnitude of current flowing from the power source to the plurality of in-vehicle devices,
When the plurality of in-vehicle devices receive the operation instruction signal from the control device, each of the on-vehicle devices starts operation after a different response time has elapsed,
The control device outputs an operation instruction signal for operating a desired in-vehicle device, and from a time until the magnitude of the current detected by the current detection means changes, a desired operation is attempted. It detects whether or not the in-vehicle device has worked correctly,
If the magnitude of the current does not change within a predetermined time after outputting the operation instruction signal to the desired in-vehicle device, the control device receives the operation instruction signal. and regarded as missed was again car mounting device control systems that and outputs the operation instruction signal.   The in-vehicle device control system according to claim 2, wherein the predetermined time is set to be longer than the longest response time among the response times until the operation of the plurality of in-vehicle devices starts. In an in-vehicle device control system in which a plurality of in-vehicle devices mounted on a vehicle and a control device that outputs an operation instruction signal for operating the plurality of in-vehicle devices are communicably connected via an in-vehicle local area network ,
A power supply for supplying power required when the plurality of in-vehicle devices operate;
Current detection means for detecting the magnitude of current flowing from the power source to the plurality of in-vehicle devices,
When the plurality of in-vehicle devices receive the operation instruction signal from the control device, each of the on-vehicle devices starts operation after a different response time has elapsed,
The control device outputs an operation instruction signal for operating a desired in-vehicle device, and from a time until the magnitude of the current detected by the current detection means changes, a desired operation is attempted. It detects whether or not the in-vehicle device has worked correctly,
The control device outputs an operation instruction signal to the desired vehicle-mounted device, and from the time until the magnitude of the current detected by the current detection unit changes, the vehicle-mounted vehicle other than the desired vehicle-mounted device. If the device detects that it has operated, the car mounting device control system that is characterized in that for the actuated vehicle device, outputs an operation instruction signal for returning to the state prior to activation. In an in-vehicle device control system in which a plurality of in-vehicle devices mounted on a vehicle and a control device that outputs an operation instruction signal for operating the plurality of in-vehicle devices are communicably connected via an in-vehicle local area network ,
A power supply for supplying power required when the plurality of in-vehicle devices operate;
Current detection means for detecting the magnitude of current flowing from the power source to the plurality of in-vehicle devices,
When the plurality of in-vehicle devices receive the operation instruction signal from the control device, each of the on-vehicle devices starts operation after a different response time has elapsed,
The control device outputs an operation instruction signal for operating a desired in-vehicle device, and from a time until the magnitude of the current detected by the current detection means changes, a desired operation is attempted. It detects whether or not the in-vehicle device has worked correctly,
Wherein the controller, when the current is changed, in consideration of the magnitude of the change, the car mounting device control characterized in that the desired vehicle device that attempts to operate to detect whether or not work properly system.

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