JP2006290090A - On-vehicle communication device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle communication device and a method, capable of preventing abnormal operation of an on-vehicle unit. <P>SOLUTION: The vehicle-mounted units 1a-1n having ID, communication devices 2a-2n having ID and connected with the on-vehicle units 1a-1n, a gateway 3 which controls communication by the communication devices 2a-2n, an ID detection device 5, an input/output signal detection device 6 which detects an input/output signal to the communication devices 2a-2n, an abnormal operation judging device 7, an input/output signal processing/determining device 8 which changes the input/output signal for causing the abnormal operation of the on-vehicle-units 1a-1n to the signal for performing correct operation, and an input/output signal processing/indicating device 9 to the communication devices 2a-2n are provided, and the input/output signal processing/indicating device 9 processes the input/output signal at the stage before inputting/outputting the signal to the on-vehicle units 1a-1n when the signal for causing the abnormal operation is input/output to the communication devices 2a-2n. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an in-vehicle communication device and method mounted on a vehicle such as an automobile.

Conventional technologies include an in-vehicle control device and an in-vehicle control system for preventing delay in reading timing of transmission data from a local area network in a vehicle and achieving highly responsive control processing (Patent Document 1 below). reference).
In this prior art, when it is received by the reception buffer of the communication IC of the in-vehicle unit, an interrupt signal is immediately output from the communication IC to the CPU, and the CPU receives this and immediately starts reading from the reception buffer and calculating processing. So there was no traditional waiting time.

JP 7-279745 A

However, in the above prior art, when the load on the bus in the local area network is very high, there is no room for the interrupt signal to enter, and the signal a is transmitted to a certain unit A with a delay. In this case, when the signal b is transmitted from the other in-vehicle unit B to the unit A, the signals a and b may be transmitted to the unit A at the same time.
In this prior art, no particular consideration is given to a method for preventing such an operation in which the signals a and b are simultaneously transmitted. As a result, there is a problem that an unexpected operation may occur in the unit A.

  The present invention has been made to solve the above-described problems. The object of the present invention is to prevent unexpected operations from occurring in a unit even when a plurality of signals are transmitted to the unit at the same time. It is an object of the present invention to provide an in-vehicle communication device and method capable of performing the above.

  In order to solve the above problems, the present invention provides an in-vehicle unit that operates as a part of a vehicle and has a unique ID (identifier), a communication unit that is connected to the in-vehicle unit and has a unique ID, and the communication A gateway that controls communication by the means, an ID detection means, an input / output signal detection means that detects an input / output signal to the communication means, an abnormal operation determination means that determines that the in-vehicle unit causes an abnormal operation, and the in-vehicle Input / output signal processing determining means for determining to change the input / output signal that causes the unit to operate abnormally to a signal that causes the in-vehicle unit to perform correct operation, and the input / output signal processing determining means Input / output signal processing instruction means for instructing the communication means to reflect the input / output signal via the gateway, the input / output signal processing The indicating means is configured such that when a signal that causes an abnormal operation is input to or output from the communication means, the input / output signal is processed before the signal is input to or output from the in-vehicle unit. ing.

  According to the present invention, it is possible to provide an in-vehicle communication apparatus and method capable of performing processing that prevents an unexpected operation from occurring even when a plurality of signals are transmitted to a unit at the same time. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings described below, components having the same function are denoted by the same reference numerals, and repeated description thereof is omitted.
<< First Embodiment >>
Hereinafter, a first embodiment of the present invention will be described.
<Constitution>
First, the configuration of the in-vehicle communication device according to the present embodiment will be described. FIG. 1 is a diagram showing a configuration of an in-vehicle communication device according to the present embodiment.

As shown in FIG. 1, the in-vehicle communication device (vehicle network) includes in-vehicle units 1a to 1n, communication means (nodes) 2a to 2n, a gateway 3, and an input / output signal processing unit 4. The output signal processing unit 4 includes an ID detection unit 5, an input / output signal detection unit 6, an abnormal operation determination unit 7, an input / output signal processing determination unit 8, and an input / output signal processing instruction unit 9.
Specifically, at least IDs and input / output signals used to identify the types of the in-vehicle units 1a to 1n are detected, and signals that cause the in-vehicle units 1a to 1n to operate abnormally are communication means 2a to 2n. It is determined whether input / output is performed for 2n, the input / output signal is stopped, and an input / output signal that normalizes the operation of the in-vehicle units 1a to 1n is determined and reflected to each communication means 2a to 2n. A ROM (Read Only Memory) storing a program to be executed, and an ID detection means 5, an input / output signal detection means 6, an abnormal operation determination means 7, an input / output signal processing determination means by executing the program stored in the ROM 8. A CPU (Central Processing Unit) functioning as the input / output signal processing instruction means 9 and a RAM (Random Access Memory) functioning as an accessible storage device are provided.

  Note that each means in the present embodiment is physically arranged and connected separately. Specifically, the communication means 2a to 2n are wireless communication devices, such as an ID detection means 5, an input / output signal detection means 6, an abnormal operation determination means 7, an input / output signal processing determination means 8, and an input / output signal processing instruction means 9. Are configured as physically separate devices. In the present embodiment, the in-vehicle units 1a to 1n are safer for the user especially when an input / output signal to the communication means 2a to 2n that causes the in-vehicle units 1a to 1n to operate abnormally is detected. The input / output signals are changed to the communication means 2a to 2n that perform various operations.

Hereinafter, each structure of the vehicle-mounted communication apparatus of this Embodiment is demonstrated.
<Communication means 2a to 2n>
The communication means 2a to 2n are communication capable of transmitting and receiving at least IDs and input / output signals used for specifying the types of the in-vehicle units 1a to 1n, and input / output signals for normal operation of the in-vehicle units 1a to 1n. It has a function. The communication units 2 a to 2 n of the present embodiment are wireless communication terminal devices that perform wireless communication with the gateway 3. The transmission method used by the communication means 2a to 2n is not particularly limited, and may be a radio wave method, an infrared method, and other methods. Further, the communication band used by the communication units 2a to 2n is not particularly limited, and may be an 800 MHz band, a 1.5 GHz band, a 2 GHz band, and other bands. Specific examples of the communication means 2a to 2n include wireless LAN (802.11a, 802.11b, 802.11g), Bluetooth, ZigBee, UWB, millimeter wave, infrared, and the like. However, on the premise that the vehicle network is wireless, considering that the power source of the communication means 2a to 2n must have almost the same durability as the vehicle, the power consumption is ideally small and has directivity. It is desirable that there is no Bluetooth, ZigBee, UWB. The communication means 2a to 2n are incorporated in the circuits of the in-vehicle units 1a to 1n, or are wired such as RS-232C (serial interface) and USB (Universal Serial Bus), or Bluetooth, ZigBee, UWB, infrared, etc. It becomes the form added to the vehicle-mounted units 1a-1n by radio.

<In-vehicle units 1a to 1n>
The in-vehicle units 1a to 1n have IDs used for specifying the types of the in-vehicle units 1a to 1n including at least one of the names and types of the in-vehicle units 1a to 1n, and are IDs for the communication units 2a to 2n. And a function capable of inputting and outputting signals.

<ID detection means 5>
The ID detection means 5 has a function of detecting an ID used for specifying the type of the in-vehicle units 1a to 1n. The IDs of the in-vehicle units 1a to 1n acquired here are input / output signals described later. In order to correlate with the input / output signals of the communication means 2a to 2n detected by the detection means 6, or to instruct the gateway 3 to reflect the changed input / output signals by the input / output signal processing instruction means 9 described later. Used for. The ID detection means 5 of the present embodiment has an in-vehicle unit ID detection unit 51 and a communication means ID detection unit 52.

<Input / output signal detection means 6>
The input / output signal detection means 6 has a function of detecting the input / output signals of the communication means 2a to 2n, and the input / output signals of the communication means 2a to 2n acquired here are the on-vehicle units 1a described above. Associated with each ID used to identify the ~ 1n type.

<Abnormal operation determination means 7>
The abnormal operation determination means 7 illuminates the abnormal operation input / output signal list 71 that describes the relationship between the input / output signals in the current communication means 2a to 2n and the input / output signals that cause the in-vehicle units 1a to 1n to operate abnormally. By combining them, the vehicle-mounted units 1a to 1n have a function of determining whether or not a signal that causes an abnormal operation is input to or output from the communication units 2a to 2n. The abnormal operation determination means 7 of this embodiment has an abnormal operation input / output signal list 71 and an ID-input / output signal inquiry unit 72.

<Input / output signal processing determining means 8>
The input / output signal processing determining means 8 refers to the safe operation input / output signal list 81 describing the relationship of the input / output signals that allow the in-vehicle units 1a to 1n to perform a safer operation for the user. It is decided to change the input / output signals for the communication means 2a to 2n such that 1n causes an abnormal operation to the input / output signals for the communication means 2a to 2n so that the in-vehicle units 1a to 1n perform safer operations. It has a function. The input / output signal processing determining means 8 of the present embodiment has a safe operation input / output signal list 81.

<Input / output signal processing instruction means 9>
The input / output signal processing instructing unit 9 has a function of instructing the gateway 3 to change to the input / output signal determined above with respect to the communication units 2a to 2n. <Operation procedure>
Next, an operation procedure in the in-vehicle communication device and method of the present embodiment will be described based on the flowchart of FIG.
Here, the communication means 2a to 2n that stop the input / output signals for the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally and allow the user to perform safe operations with the in-vehicle units 1a to 1n. A control procedure for changing to an input / output signal will be described. This control procedure is divided into four parts, that is, the input / output signal processing unit 4, the gateway 3, the communication means 2a to 2n, and the in-vehicle units 1a to 1n shown in FIG. It is divided and described.
The control from S101 to S102 corresponds to the operation of grasping all the in-vehicle units 1a to 1n. The control described in S103 to S106 corresponds to the operation of detecting the IDs of the in-vehicle units 1a to 1n and the input / output signals for the communication means 2a to 2n. The control described in S107 to S108 corresponds to an operation of inquiring the IDs of the in-vehicle units 1a to 1n and the input / output signals for the current communication means 2a to 2n with the input / output signal list 71 during abnormal operation. The control described in S109 to S112 corresponds to the control for determining and reflecting the input / output signals for the communication units 2a to 2n with reference to the safe operation input / output signal list 81.

  The input / output signal processing unit 4 is configured to be able to detect the IDs of the in-vehicle units 1a to 1n and the input / output signals to the communication means 2a to 2n via the gateway 3. By referencing the abnormal operation input / output signal list 71 describing the input / output signals of the vehicle-mounted units 1a to 1n in such a configuration and abnormal operation, signals to the communication means 2a to 2n causing abnormal operation are input. Understand that it is output. At the same time, by referring to the safe operation input / output signal list 81 describing the input / output signals for the communication means 2a to 2n such that the in-vehicle units 1a to 1n perform safe operations for the user, the in-vehicle units 1a to 1n Input / output signals to the communication means 2a to 2n that operate abnormally are stopped. Thereby, it is possible for the user to input and output signals that allow the in-vehicle units 1a to 1n to perform safe operations with respect to the communication units 2a to 2n.

First, the ID detection means 5 makes a quantity grasp request for the communication means 2a to 2n (S101). The communication units 2a to 2n are connected to each of the vehicle units 1a to 1n, and the quantity of the vehicle units 1a to 1n can be grasped by calculating the number of the communication units 2a to 2n.
Since the communication means 2a to 2n are managed by the gateway 3, the number of the communication means 2a to 2n can be grasped by the gateway 3 (S102).

Next, the following processing is performed for the grasped quantity of the communication means 2a to 2n. In order to grasp the operation status of the in-vehicle units 1a to 1n, a request for detecting the ID of the in-vehicle units 1a to 1n and the input / output signals to the communication means 2a to 2n is issued (S103).
The gateway 3 detects the IDs of the vehicle units 1a to 1n and the input / output signals to the communication units 2a to 2n by grasping the state of the communication units 2a to 2n according to the issued request (S104).
The communication means 2a to 2n acquire the ID of the in-vehicle units 1a to 1n and the input / output signals for the communication means 2a to 2n, and the state in which the state can be grasped from the gateway 3 can be transferred. (S105). The following can be considered as an example of this series of operations. The IDs of the in-vehicle units 1a to 1n are required to be described in an area that can be used as a property of the communication means 2a to 2n at the time of factory shipment, and can be referred to later. As a result, the gateway 3 can detect the IDs of the in-vehicle units 1a to 1n and the input / output signals for the communication means 2a to 2n. As another example, the communication units 2a to 2n are input by the gateway 3 by inputting the IDs of the in-vehicle units 1a to 1n from terminals that can be exchanged separately from the input / output signals for the communication units 2a to 2n. It is possible to detect the IDs of the in-vehicle units 1a to 1n simultaneously with the input / output signal for. These operations are performed a plurality of times based on the quantity of the communication means 2a to 2n grasped in S102.
For all the in-vehicle units 1a to 1n, it is determined whether or not the detection of the input / output signals for the ID and the communication means 2a to 2n is completed (S106).

When completed, the IDs of the in-vehicle units 1a to 1n and the input / output signals for the communication means 2a to 2n are referred to the abnormal operation input / output signal list 71 (S107). If the above processing is not completed, the operations from S103 to S105 are performed again.
As a result of the inquiry in S107, it is determined whether or not the combination of the current IDs of the in-vehicle units 1a to 1n and the input / output signals for the communication means 2a to 2n matches the input / output signal list 71 during abnormal operation (S108).

When there is a match, the safe operation input / output signal list 81 is inquired regarding the combination of the IDs of the matched vehicle-mounted units 1a to 1n and the input / output signals for the communication means 2a to 2n, and the communication means 2a to 2n Input / output signals are determined (S109).
In order for the in-vehicle units 1a to 1n to perform a safe operation for the user, the input / output signals for the determined communication means 2a to 2n must be reflected to the in-vehicle units 1a to 1n. Therefore, an input / output signal reflection request for the communication means 2a to 2n is issued to the in-vehicle units 1a to 1n (S110).
This request is made via the gateway 3, and the determined input / output signal is reflected to each of the communication means 2a to 2n (S111).
In addition, when reflecting an input / output signal to each communication means 2a-2n via the gateway 3, ID of the communication means 2a-2n detected previously is utilized, and the vehicle-mounted units 1a-1n are connected. Identification of the communication means 2a to 2n is performed. The communication means 2a to 2n deliver the determined input / output signal to the connected in-vehicle units 1a to 1n (S112), and input / output signals to / from the in-vehicle units 1a to 1n. ~ 1n will perform safe operation for the user. In S108, if there is no combination of the current IDs of the in-vehicle units 1a to 1n and the input / output signals for the communication means 2a to 2n with the input / output signal list 71 during abnormal operation, all the in-vehicle units Since signals that allow the units 1a to 1n to operate normally are input / output, the current operation is continued without changing the input / output signals.

<Power window operation>
Hereinafter, a specific example of the above processing operation will be described. FIG. 3 is a diagram showing combinations of input / output signals that cause abnormal operation of the power window motor and combinations of input / output signals that perform safe operation. (A) shows the vehicle-mounted unit 1c which is a power window switch, and the communication means 2c connected to it. (B) shows the vehicle-mounted unit 1d which is a power window motor module, and the communication means 2d connected to it. The in-vehicle unit 1d includes a power window motor 11d and a pinching prevention circuit 12d. (C) shows a part of the input / output signal list during abnormal operation, and (d) shows a part of the safe operation input / output signal list.

  Here, the pinching prevention function in the power window will be described. A recent vehicle has a function of automatically performing a power window DOWN operation by a specified amount (about 15 cm) when a user performs a power window UP operation and the user's arm is caught. Yes. This is called a pinching prevention function. In the present embodiment, the input / output signal to the communication means that operates abnormally is stopped, and the input / output processing operation of the signal to the communication means that allows the in-vehicle unit to perform a safe operation for the user is performed. The UP operation (in terms of input / output signals, “UP” terminal: HIGH, “DOWN” terminal: LOW) despite this pinching prevention function being operated (“Stucking prevention function operation state” terminal: ON) If is performed, it means that the device is operating abnormally. Therefore, by having the input / output signal relationship for realizing this abnormal operation as the abnormal operation input / output signal list 71 in the abnormal operation determination means 7, the input / output signals for the actual communication means are collated and the in-vehicle unit is abnormal. It can be determined that a signal that causes an operation is input to and output from the communication means. By the way, when the pinching prevention function is operating, the most dangerous operation is the UP operation of the power window. This is because, due to the pinching prevention function, although the power window DOWN operation is performed as a safe operation for the user, the safe operation for the user cannot be guaranteed by performing the UP operation of the power window. In view of this, the input / output signal relationship for realizing the safe operation is provided in the input / output signal processing determining means 8 as the safe operation input / output signal list 81, so that the in-vehicle unit can safely operate for the user. Can be determined. Regarding this pinching prevention function, the AUTO DOWN operation (in terms of input / output signals, “UP” terminal: LOW, “DOWN” terminal: HIGH, “AUTO” terminal: ON) is a safe operation for the in-vehicle unit. Become.

  In fact, while the anti-pinch function is in operation, the input / output signal of the communication means that the input / output signal to the communication means changes due to some influence such as noise or signal delay, and the anti-pinch function of the power window causes abnormal operation. First, the detected ID of the in-vehicle unit 1d (pinch prevention circuit 12d) and the input / output signal of the communication means 2d connected to the in-vehicle unit 1d are collated with the input / output signal list 71 during abnormal operation. Then, it is confirmed that a signal that causes an abnormal operation (UP operation of the power window) is input to and output from the communication means 2d ("UP" terminal: HIGH, "DOWN" terminal: LOW). Thereafter, the ID of the in-vehicle unit 1d detected earlier and the safe operation input / output signal list 81 are collated, and the input / output signal ("UP" terminal) for the communication means 2d that realizes the corresponding safe operation (DOWN operation of the power window). : LOW, “DOWN” terminal: HIGH). These input / output signals for the communication means 2d are instructed to the gateway 3 to be reflected in the in-vehicle unit 1d, and finally reflected in the in-vehicle unit 1d via the communication means 2d, and the AUTO DOWN operation of the power window. ("UP" terminal: LOW, "DOWN" terminal: HIGH, "AUTO" terminal: ON) is performed, and the safety of the user is ensured.

<Gear shift operation>
Next, another specific example of the above processing operation will be described. FIG. 4 is a diagram showing combinations of input / output signals that cause an abnormal operation of an automatic transmission and combinations of input / output signals that perform a safe operation. (A) shows the vehicle-mounted unit 1e which is an automatic shift gate, and the communication means 2e connected to it. (B) shows the in-vehicle unit 1f which is a transmission module and the communication means 2f connected thereto. The transmission module 1f includes a transmission 13f and an automatic control unit (A / TC / U) 14f. (C) shows an input / output signal list during abnormal operation, and (d) shows a safe operation input / output signal list.

  Here, regarding the shift state, the input / output signal is stopped so as to cause an abnormal operation, and the signal input / output processing operation is performed so that the in-vehicle unit performs a safe operation for the user. In a vehicle having an AT or CVT transmission, an optimum shift pattern is determined by the A / TC / U 14f according to the shift position selected by the A / T shift gate, and the transmission 13f is controlled. Here, although the shift position is “P (parking)” or “N (neutral)”, for some reason, “D (drive)”, “L (LOW)”, “R (reverse)” If the shift position signal is duplicated and sent to the A / TC / U 14f, the shift position signal input later is validated, so that the transmission 13f transmits the power, and the user's intention On the other hand, it is considered that the vehicle may travel. The abnormal operation in this case is that although a shift position signal at A / TC / U14f is currently input, other position signals are input at A / TC / U14f at the same time. The shift position is not changed. Further, the safe operation for the user is that the shift position signal input to the A / TC / U 14f is returned to the shift position signal input to the A / TC / U 14f so far, so that It is to return to the running state.

  As shown in FIG. 4, when the shift position is actually “P” (described in 1st), the communication means 2f that causes the transmission 13f to malfunction due to some influence such as noise or signal delay. First, the detected ID of the in-vehicle unit 1f (A / TC / U14f) and the input / output signal to the communication means 2f connected to the in-vehicle unit 1f are input / output during abnormal operation. A signal that is collated with the signal list 71 and causes an abnormal operation (simultaneous operation ("R" (described in 2nd) is input to the in-vehicle unit 1f at the same time as the above shift position)) is input to and output from the communication unit 2f. Make sure. Thereafter, the ID of the in-vehicle unit 1f confirmed earlier and the safe operation input / output signal list 81 are collated, and the corresponding safe operation (the shift position that has been input to the in-vehicle unit 1f so far, that is, “P” (described after the change). )) Is determined. These input / output signals are instructed to the gateway 3 to be reflected in the in-vehicle unit 1f, and finally reflected in the in-vehicle unit 1f via the communication means 2f, and the shift that has been input to the in-vehicle unit 1f so far. Returned to the position, the safety of the user is ensured.

  In the example of FIGS. 3 and 4 described above, input / output terminals corresponding to the number of functions are prepared in the in-vehicle units 1c to 1f, and by determining input / output signals for the terminals of the respective communication means 2c to 2f, The operation of the in-vehicle units 1c to 1f has been determined. However, depending on the vehicle-mounted unit, the number of terminals is less than the number of functions, and the function may be determined by a combination of signals (combination logic). The abnormal operation of the in-vehicle unit in such a case indicates a case where the signal has changed in an unintended cycle and an unintended number of times, and a switch or relay in the in-vehicle unit is chattering. Even in such a case, the processing to be performed is the same as in FIGS. 3 and 4, and the input / output signal is changed so that the in-vehicle unit realizes a safe operation.

  FIG. 5 shows an example of the abnormal operation input / output signal list 71 and the safe operation input / output signal list 81. An example shown here relates to a power window pinching prevention function and a shift state. In particular, regarding the shift state in the I / O signal list during abnormal operation, the transition from the input / output signal for the current communication means to the input / output signal for the current communication means is regarded as important. It is described in. Moreover, it is thought that it can describe similarly about another vehicle-mounted unit.

As described above, the in-vehicle communication device of the present embodiment has a unique ID, and the in-vehicle units 1a to 1n that operate as a part of the vehicle, and the communication that has the unique ID and is connected to the in-vehicle units 1a to 1n. Means 2a-2n, gateway 3 for controlling communication by communication means 2a-2n, ID detection means 5, input / output signal detection means 6 for detecting input / output signals to communication means 2a-2n, and in-vehicle units 1a- When a signal that causes an abnormal operation of 1n is input / output to / from the communication means 2a to 2n, the abnormal operation determination means 7 that determines that the in-vehicle units 1a to 1n cause an abnormal operation, and the in-vehicle units 1a to 1n An input / output signal processing determining means 8 for determining an input / output signal that causes an abnormal operation to be changed to a signal that causes the in-vehicle units 1a to 1n to perform a correct operation; An in-vehicle communication device having an input / output signal processing instruction means 9 for instructing the communication means 2a to 2n to reflect the input / output signal determined by the signal processing determination means 8 via the gateway 3, The input / output signal processing instructing means 9 is an input / output signal at a stage prior to inputting / outputting the signals to / from the vehicle-mounted units 1a to 1n when a signal causing an abnormal operation is input / output to the communication means 2a to 2n. It is configured to perform the process.
Moreover, the vehicle-mounted communication method of this Embodiment has unique ID, the vehicle-mounted unit 1a-1n which operate | moves as a part of vehicle, and the communication means 2a which has unique ID and was connected to vehicle-mounted unit 1a-1n. ˜2n, gateway 3 that controls communication by communication means 2a to 2n, ID detection means 5, input / output signal detection means 6 for detecting input / output signals to communication means 2a to 2n, and in-vehicle units 1a to 1n When a signal that causes an abnormal operation is input / output to / from the communication units 2a to 2n, the abnormal operation determination unit 7 that determines that the in-vehicle units 1a to 1n cause an abnormal operation and the in-vehicle units 1a to 1n are abnormal. An input / output signal processing determining means 8 for determining an input / output signal that causes an operation to be changed to a signal that causes the in-vehicle units 1a to 1n to perform a correct operation; An in-vehicle communication method using an in-vehicle communication device having an input / output signal processing instruction means 9 for instructing the communication means 2a to 2n to reflect the input / output signal determined by the determination means 8 via the gateway 3 The input / output signal processing instructing means 9 is a pre-stage for inputting / outputting the signals to / from the in-vehicle units 1a to 1n when a signal causing an abnormal operation is input / output to the communication means 2a to 2n. In this configuration, input / output signals are processed.
According to such a configuration, when an abnormality occurs in the vehicle network in which the harness is wireless, and signals that cause the in-vehicle units 1a to 1n to operate abnormally are input / output to the communication units 2a to 2n. Since the input / output signal is processed, signals that normalize the operation of the in-vehicle units 1a to 1n can be input / output to / from the communication units 2a to 2n. In addition, even when a plurality of signals are transmitted to a certain in-vehicle unit 1a to 1n at the same time, it is possible to perform processing so that an unexpected operation does not occur in the in-vehicle units 1a to 1n.

  The ID detection means 5 includes an in-vehicle unit ID detection unit 51 that detects the IDs of the in-vehicle units 1a to 1n, and the abnormal operation determination unit 7 includes a vehicle signal detection unit 73 that detects a vehicle signal, and the in-vehicle unit 1a. The abnormal operation input / output signal list 71 describing the relationship between the IDs of the in-vehicle units 1a to 1n and the input / output signals when signals that cause abnormal operation of 1 to 1n are input / output to / from the communication means 2a to 2n. Then, referring to the IDs of the in-vehicle units 1a to 1n from the input / output signal list 71 at the time of abnormal operation, communication when the signals that cause the in-vehicle units 1a to 1n to operate abnormally are input / output to the communication means 2a to 2n. And an ID-input / output signal inquiry section 72 for inquiring input / output signals of the means 2a to 2n. Refer to the IDs and input / output signals of the in-vehicle units 1a to 1n and the vehicle signals. Queries and operation time of output signal list 71, the signal that causes the abnormal operation determines whether it is output to the communication unit 2 a to 2 n. According to such a configuration, reference is made to the abnormal operation input / output signal list 71 with reference to the IDs of the vehicle units 1a to 1n and the input / output signals of the communication means 2a to 2n connected to the vehicle units 1a to 1n. Therefore, it is possible to determine whether or not a signal that causes the in-vehicle units 1a to 1n to operate abnormally is input to or output from each of the communication units 2a to 2n.

  Also, the abnormal operation input / output signal list 71 describes a state in which contradictory signals are input or output simultaneously with the signals currently input or output to the communication means 2a to 2n. According to such a structure, it can avoid that such a signal is input / output with respect to in-vehicle unit 1a-1n, and it can prevent that in-vehicle unit 1a-1n raise | generates abnormal operation.

  Further, the abnormal operation input / output signal list 71 describes combinations of input / output signals that realize functions that are not used in the current running state of the vehicle. According to such a configuration, it is possible to prevent a function that is never used for the current traveling state of the vehicle from being realized.

  In the abnormal operation input / output signal list 71, a shift position is selected such that the vehicle is traveling backward when the vehicle is traveling forward, and a shift position is selected that is traveling forward when the vehicle is traveling backward. In at least one of the states in which the shift position is selected so that power is not transmitted in the running state and the running state of the vehicle. According to such a configuration, the current traveling state can be maintained without causing the vehicle to operate abnormally.

  Also, the input / output signal processing determining means 8 is a safe operation input / output signal that describes input / output signals that allow the in-vehicle units 1a to 1n to perform a safer operation for the user in the current travel scene or use scene of the vehicle. The list 81 has an input / output signal that causes the in-vehicle units 1a to 1n to operate abnormally to the communication means 2a to 2n, and the in-vehicle units 1a to 1n perform a safer operation for the user. Change to I / O signal. According to such a configuration, the input / output signals that cause the abnormal operation of the in-vehicle units 1a to 1n to the communication units 2a to 2n are stopped, and the operation of the in-vehicle units 1a to 1n is safer for the user. Can be performed.

<< Second Embodiment >>
FIG. 6 is a diagram illustrating a configuration of the in-vehicle communication device according to the present embodiment.
In the first embodiment, as shown in FIG. 1, the ID detection means 5 has an in-vehicle unit ID detection section 51 and a communication means ID detection section 52, whereas in the present embodiment, FIG. As shown in FIG. 4, the ID detection means 5 has only the communication means ID detection unit 52. Also, the abnormal operation input / output signal list 71 in the abnormal operation determination means 7 is configured to have a communication means ID → vehicle unit ID reference list 711. In the case of this configuration, instead of detecting the IDs of the vehicle units 1a to 1n, the IDs of the communication units 2a to 2n are detected, and this ID is changed to the IDs of the vehicle units 1a to 1n by the communication unit ID → the vehicle unit ID reference list 711. By converting, it is possible to realize the contents described above without exchanging the IDs of the in-vehicle units 1a to 1n via the communication units 2a to 2n.
FIG. 7 shows an example of the communication means ID → vehicle unit ID reference list 711.

As described above, in the present embodiment, the ID detection unit 5 includes the communication unit ID detection unit 52 that detects the IDs of the communication units 2a to 2n, and the abnormal operation determination unit 7 detects the vehicle signal. Unit 73 and the abnormal operation describing the relationship between the IDs of the in-vehicle units 1a to 1n and the input / output signals when signals that cause abnormal operation of the in-vehicle units 1a to 1n are input / output to / from the communication means From the input / output signal list 71 for abnormal operation and the input / output signal list 71 for abnormal operation, the IDs of the in-vehicle units 1a to 1n are referred to and signals that cause the in-vehicle units 1a to 1n to operate abnormally enter the communication means 2a to 2n. An ID-input / output signal inquiry unit that inquires the input / output signals of the communication means 2a to 2n when output, and the abnormal operation input / output signal list 71 includes the I / O of the communication means 2a to 2n. Communication unit ID describing the relationship between the IDs of the vehicle units 1a to 1n and the vehicle unit ID reference list 711, and the abnormal operation determination unit 7 determines the communication unit from the detected IDs of the communication units 2a to 2n. I / O signal patterns that cause the in-vehicle units 1a to 1n to malfunction by referring to the IDs of the in-vehicle units 1a to 1n connected to 2a to 2n and referring to the input / output signals of the communication means 2a to 2n An inquiry is made to determine whether a signal that causes an abnormal operation to the communication means 2a to 2n is input or output.
According to such a configuration, first, using the communication means ID → the in-vehicle unit ID reference list 711, the ID of the detected communication means 2a to 2n is changed to the ID of the in-vehicle units 1a to 1n connected thereto. Convert. Thereafter, referring to the input / output signals of the communication means 2a to 2n, the input / output signal patterns for the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally are referred, so that the communication means 2a to 2n Even if the IDs of the in-vehicle units 1a to 1n are not acquired and transmitted to the gateway 3, it is determined whether or not a signal that causes an abnormal operation is input to or output from each of the communication units 2a to 2n. can do.

  As described above, in the first and second embodiments, communication that causes abnormal operation when the in-vehicle units 1a to 1n input / output signals to the communication means 2a to 2n that cause abnormal operation. It recognizes that it is an input / output signal for means 2a-2n. Then, for the user, the input / output signal relationship that allows the in-vehicle units 1a to 1n to operate safely is selected, and the input / output signals are reflected to the in-vehicle units 1a to 1n. Therefore, it is possible for the user to change the in-vehicle units 1a to 1n so that they can perform safe operations instantly.

<< Third Embodiment >>
<Constitution>
FIG. 8 is a diagram showing the configuration of the in-vehicle communication device of the present embodiment.
As shown in FIG. 8, the input / output signal processing determination unit 8 includes a next sampling signal reflection unit 82. Further, as in the first embodiment, the ID detection unit 5 includes an in-vehicle unit ID detection unit 51 and a communication unit ID detection unit 52. Similarly to the second embodiment, the abnormal operation input / output signal list 71 in the abnormal operation determination unit 7 includes a communication unit ID → vehicle unit ID reference list 711.

  Except for these points, this embodiment is common to the first and second embodiments. A duplicate description of these common basic configurations will be avoided, and different points will be mainly described here. In the present embodiment, in particular, when signals that cause abnormal operation of the in-vehicle units 1a to 1n are input / output to / from the communication means 2a to 2n, the input / output signal detection means 6 In-vehicle units 1a-1n are detected by detecting input / output signals to / from communication means 2a-2n at the sampling timing and by inputting / outputting the signals to / from communication means 2a-2n and reflecting them in in-vehicle units 1a-1n. Is supposed to work properly.

Each configuration will be described below.
<Input / output signal processing determining means 8>
The input / output signal processing determining means 8 detects input / output signals for the communication means 2a to 2n at the next sampling timing, inputs / outputs the signals to / from the communication means 2a to 2n, and reflects them in the in-vehicle units 1a to 1n. It has the function to do. The input / output signal processing determining means 8 of the present embodiment has a next sampling signal reflecting unit 82.

<Operation procedure>
Next, the operation procedure of the present embodiment will be described based on the flowchart of FIG.
Here, the input / output signals to the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally are stopped, and the input / output signals to the communication means 2a to 2n detected at the next sampling time are sent to the communication means 2a. A control procedure for causing the in-vehicle units 1a to 1n to perform normal operations by inputting / outputting to ˜2n and reflecting the in-vehicle units 1a to 1n will be described. As in the first embodiment, this control procedure is divided into four parts, that is, the input / output signal processing unit 4, the gateway 3, the communication means 2a to 2n, and the vehicle units 1a to 1n shown in FIG. The flowchart of FIG. 9 is also described separately for these four operations. Note that the control described in S301 to S302 is an operation for detecting input / output signals to the communication means 2a to 2n at the next sampling timing and determining whether the input / output signals cause abnormal operation of the in-vehicle units 1a to 1n. Correspond.

  The input / output signal processing unit 4 is configured to detect the IDs of the in-vehicle units 1a to 1n and the input / output signals to the communication means 2a to 2n via the gateway 3 and the communication means 2a to 2n. By referring to this and the abnormal operation input / output signal list 71, it is understood that signals that cause the vehicle-mounted units 1a to 1n to operate abnormally are input to and output from the communication means 2a to 2n. At the same time, it is possible to input / output signals to / from the communication means 2a to 2n so that the in-vehicle units 1a to 1n perform normal operations by stopping the input / output of the signals.

Also in the flowchart, the redundant description of the basic operation common to the first embodiment is avoided, and here, different points will be mainly described. In the present embodiment, the IDs of the in-vehicle units 1a to 1n and the input / output signals for the communication means 2a to 2n are referred to the abnormal operation input / output signal list 71 (S107).
Then, it is determined whether there is a match (S108).

If there is a match, S103 to S106 similar to those in the first embodiment are executed (S201). Thereby, the input / output signal with respect to the communication means 2a-2n in the next sampling timing is detected.
It is determined whether or not the detected input / output signal has changed to an input / output signal not listed in the input / output signal list 71 during abnormal operation (S202).
FIG. 10 is a diagram showing reflection of input / output signals at the time of abnormal operation and input / output signals at the next sampling regarding the power window motor. (A) shows the vehicle-mounted unit 1c which is a power window switch, and the communication means 2c connected to it. (B) shows the vehicle-mounted unit 1d which is a power window motor module, and the communication means 2d connected to it. The in-vehicle unit 1d includes a power window motor 11d and a pinching prevention circuit 12d. (C) shows a part of the input / output signal list during abnormal operation. (D), (e) shows the time transition of the signal.

  As shown in the time transition of the signal in FIG. 10D, when the input / output signal is not described in the input / output signal list 71 during abnormal operation, the in-vehicle units 1c and 1d operate normally. By authorizing it as an input / output signal for the communication means 2c, 2d and reflecting the input / output signal to the communication means 2c, 2d, it is possible to input / output a signal that causes the vehicle-mounted units 1c, 1d to operate normally. It becomes possible. If the detected input / output signal for the communication means 2c, 2d remains the same as the input / output signal for the communication means 2c, 2d described in the abnormal operation input / output signal list, the in-vehicle unit 1c The operation of S201 is repeated until an input / output signal for the communication means 2c, 2d that 1d performs normal operation is detected. However, there may be a case where the input / output signals for the communication means 2c and 2d change at each sampling timing, and it cannot be determined which signal is the input / output signal for the communication means 2c and 2d that realizes normal operation. In such a case, as shown in the time transition of the signal in FIG. 10E, it is not described in the abnormal operation input / output signal list 71 continuously for a predetermined number of times (for example, three times). When the same input / output signal for the communication means 2c, 2d is confirmed, the input / output signal for the communication means 2c, 2d is used as the input / output signal for the communication means 2c, 2d so that the in-vehicle units 1c, 1d operate normally. Authorize as.

  As described above, according to the present embodiment, when signals are input / output to / from the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally, the in-vehicle units 1a to 1n operate abnormally from now on. Recognize that Thereafter, if the input / output signals for the communication means 2a to 2n detected at the next sampling timing are input / output signals for the communication means 2a to 2n so that the in-vehicle units 1a to 1n operate normally, the in-vehicle unit 1a. The signal is input / output to .about.1n. Therefore, the in-vehicle units 1a to 1n can perform normal operations without preparing a list of input / output signals for the communication means 2a to 2n so that the in-vehicle units 1a to 1n perform normal operations. .

  As described above, in the present embodiment, the input / output signal processing determining unit 8 determines that the input / output signals for the communication units 2a to 2n detected at the next timing to input / output signals are the ID-input / output signal inquiry unit 72. The next sampling signal reflecting unit for judging whether or not the combination is a normal signal for the in-vehicle units 1a to 1n and reflecting the detected input / output signal to the communication means 2a to 2n when the signal is a normal signal. 82, and input / output such that the in-vehicle units 1a to 1n perform normal operations with respect to the communication means 2a to 2n in which signals that cause abnormal operation of the in-vehicle units 1a to 1n are input / output. Change to signal. According to such a configuration, when the input / output signals detected at the next timing are correct signals, the input / output signals to the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally at present. In addition, the signal is reflected to the communication means 2a to 2n, and the input / output signal is changed to the communication means 2a to 2n so that the on-vehicle units 1a to 1n operate normally. The input / output signals that cause the operation can be stopped, and the normal on-vehicle units 1a to 1n can be operated.

<< Fourth Embodiment >>
<Constitution>
FIG. 11 is a diagram illustrating a configuration of the in-vehicle communication device according to the present embodiment.
As illustrated in FIG. 11, the input / output signal processing instruction unit 9 includes a signal processing order determination unit 91, and the signal processing order determination unit 91 includes a processing order definition list 911. Further, as in the first embodiment, the ID detection unit 5 includes an in-vehicle unit ID detection unit 51 and a communication unit ID detection unit 52. The input / output signal processing determining means 8 has a safe operation input / output signal list 81. Similarly to the second embodiment, the abnormal operation input / output signal list 71 in the abnormal operation determination unit 7 includes a communication unit ID → vehicle unit ID reference list 711. Similarly to the third embodiment, the input / output signal processing determination unit 8 includes a next sampling signal reflection unit 82.

Except for these points, this embodiment is common to the first, second, and third embodiments. A duplicate description of these common basic configurations will be avoided, and different points will be mainly described here. In the present embodiment, in particular, when signals are input / output to / from the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally, the first embodiment and the third embodiment are performed. In accordance with the method described in the embodiment, the input / output signal processing determining means 8 determines to change the input / output signals for the communication means 2a to 2n, and depending on the importance of the operation of the in-vehicle units 1a to 1n, the communication means 2a to A method of changing the input / output signals for 2n in the order determined by the input / output signal processing instruction means 9 will be described. <Input / output signal processing instruction means 9>
The input / output signal processing instruction means 9 determines the input / output signal processing order of the in-vehicle units 1a to 1n in the first embodiment and the third embodiment, and changes the order according to the determined order. It has a function of instructing the gateway 3. The input / output signal processing instructing means 9 of this embodiment has a signal processing order determining unit 91, and the signal processing order determining unit 91 further has a processing order definition list 911.

<Operation procedure>
Next, the operation procedure of the present embodiment will be described based on the flowchart of FIG.
Here, the communication means 2a-2n in which the in-vehicle units 1a-1n stop the input / output signals for the communication means 2a-2n causing the abnormal operation and the in-vehicle units 1a-1n perform a safer operation for the user. A control procedure for determining the order in which signals are input / output to or the order in which the input / output signals for the communication means 2a to 2n detected at the next sampling time are reflected will be described. Since this control procedure is divided into four parts, that is, the input / output signal processing unit 4, the gateway 3, the communication means 2a to 2n, and the in-vehicle units 1a to 1n, as in the first and third embodiments. The flowchart of FIG. 12 is also described separately for these four operations.

  The input / output signal processing unit 4 is configured to detect the IDs of the in-vehicle units 1a to 1n and the input / output signals to the communication means 2a to 2n via the gateway 3 and the communication means 2a to 2n. By referring to this and the abnormal operation input / output signal list 71, input / output signals to the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally are stopped. As a result, it is possible to input and output signals that allow the in-vehicle units 1a to 1n to operate normally.

Also in the flowchart, the overlapping description of the basic operation common to the first and third embodiments is avoided, and here, different points will be mainly described. In the present embodiment, the IDs of the in-vehicle units 1a to 1n and the input / output signals for the communication means 2a to 2n are referred to the abnormal operation input / output signal list 71 (S107).
Then, it is determined whether there is a match (S108).

  If there is a match, by executing S109 of the first embodiment or S201 to S202 of the third embodiment (S401), it is possible for the user as in the first embodiment. The input / output signals to the communication means 2a to 2n that the in-vehicle units 1a to 1n operate safely are determined, or the input / output signals to the communication means at the next sampling timing as in the third embodiment. Can be determined as an input / output signal for the communication means 2a to 2n such that the in-vehicle unit performs a normal operation. In the present embodiment, the order in which the input / output signals for the communication means 2a to 2n determined in this way are reflected is determined (S402).

  FIG. 13 is a diagram illustrating an example of the in-vehicle units 1a to 1n in the door. Here, a door unit as shown in FIG. 13 will be described as an example. The door unit includes an electric mirror 131, a power window main switch 132, a power window motor 133, a door lock actuator 134, a buzzer 135, speakers 136 and 137, a door antenna 138, a door request switch 139, and the like. It can be divided into parts related to running and operation and other parts.

  Among these, the door lock actuator 134 is an in-vehicle unit necessary for locking / unlocking the door, and is considered to be an important part related to the operation of the vehicle. On the contrary, the speakers 136 and 137 are in-vehicle units necessary for outputting audio sound, but are considered to be parts not related to the operation of the vehicle. Therefore, it can be said that the door lock actuator 134 is more important than the speakers 136 and 137 in terms of the importance of the in-vehicle unit.

  An example of the processing order definition list 911 is shown in FIG. For the above reason, the processing order definition list 911 is described in the form illustrated in FIG. 14 in consideration of the importance of the in-vehicle units 1a to 1n. Specifically, the door lock actuator 134 which is the most important vehicle unit in the door unit is described first in the processing order definition list 911, and the speakers 136 and 137 which are the most important vehicle units are considered. Is described at the end of the processing order definition list 911. In S302, the order in which the input / output signals are reflected to the communication units 2a to 2n is determined according to the processing order definition list 911. As a result, in the door unit, the input / output signal of the door lock actuator 134 is reflected to the communication means 2a to 2n with the highest priority, and finally the input / output signals of the speakers 136 and 137 to the communication means 2a to 2n. Is reflected.

  As described above, in the present embodiment, the input / output signal processing instructing unit 9 includes the signal processing order determining unit 91 that determines the order in which the input / output signals for the communication units 2a to 2n are changed. Based on the order determined by the signal processing order determination unit 91, the in-vehicle units 1a to 1n perform normal operations with respect to the communication units 2a to 2n in which signals that cause abnormal operation of .about.1n are input / output. Change to the input / output signal you want to As described above, input / output signals for the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally, and input / output signals to the communication means 2a to 2n that allow the in-vehicle units 1a to 1n to operate normally. Therefore, the input / output signals to the communication units 2a to 2n connected to the in-vehicle units 1a to 1n that cause the abnormal operation of the current in-vehicle units 1a to 1n are stopped based on the order. And normal operation | movement of the vehicle-mounted units 1a-1n can be performed.

  The signal processing order determination unit 91 has a processing order definition list 911 that describes the order of changing the input / output signals for the communication means 2a to 2n, and is a signal that causes the in-vehicle units 1a to 1n to malfunction now. Is changed to an input / output signal such that the in-vehicle units 1a to 1n perform a normal operation based on the order described in the processing order definition list 911. As a result, when the operation as a vehicle is considered, the input / output signals are returned to the communication means 2a to 2n so that the normal on-vehicle units 1a to 1n are operated in preference to any communication means 2a to 2n. As for the in-vehicle units 1a to 1n that must be provided, the in-vehicle units 1a to 1n are stopped with priority given to current input / output signals that cause abnormal operation, and the in-vehicle units 1a to 1n perform normal operations. Input / output signals for the communication means 2a to 2n can be used. Moreover, the above processes can be performed in order for the in-vehicle units 1a to 1n defined as priorities after that.

  As described above, in this embodiment, when signals that cause abnormal operation of the in-vehicle units 1a to 1n are input / output to / from the communication means 2a to 2n, the in-vehicle units 1a to 1n operate abnormally from now on. Recognize that Thereafter, the user inputs / outputs signals to / from the communication means 2a to 2n so that the in-vehicle units 1a to 1n perform safer operations, or inputs / outputs signals to / from the communication means 2a to 2n detected at the next sampling timing. When reflected, the input / output signals for the communication means 2a to 2n are changed according to the order determined by the importance of the in-vehicle units 1a to 1n. Therefore, it is possible to preferentially operate important functions as a vehicle.

<< Fifth Embodiment >>
<Constitution>
FIG. 15 is a diagram illustrating a configuration of the in-vehicle communication device according to the present embodiment.
As shown in FIG. 15, the in-vehicle communication device of the present embodiment includes communication units 2 a to 2 n, in-vehicle units 1 a to 1 n, and a gateway 3, and the gateway 3 includes an ID detection unit 5 and an input unit. An output signal detection unit 6, an abnormal operation determination unit 7, an input / output signal processing determination unit 8, and an input / output signal processing instruction unit 9 are provided. That is, the gateway 3 has a function as the input / output signal processing unit 4 described in the first to fourth embodiments. Since the control procedure is the same as the control described in the first to fourth embodiments, description thereof is omitted.

As described above, in the present embodiment, the in-vehicle units 1a to 1n having a unique ID and operating as a part of the vehicle, and the communication means 2a to 2a having the unique ID and connected to the in-vehicle units 1a to 1n. 2n and an in-vehicle communication apparatus having a gateway 3 that controls communication by the communication means 2a to 2n, wherein the gateway 3 detects an input / output signal for the ID detection means 5 and the communication means 2a to 2n. Abnormal operation determination for determining that the in-vehicle units 1a to 1n cause an abnormal operation when a signal that causes the detection unit 6 and the in-vehicle units 1a to 1n to perform an abnormal operation is input to and output from the communication units 2a to 2n. Means 7 and input / output signals that cause the in-vehicle units 1a to 1n to operate abnormally are changed to signals that cause the in-vehicle units 1a to 1n to operate correctly. Input / output signal processing determining means 8 for performing the input / output signal processing instruction for instructing the communication means 2a to 2n to reflect the input / output signal determined by the input / output signal processing determining means 8 via the gateway 3 The input / output signal processing instructing means 9 inputs / outputs signals to / from the vehicle-mounted units 1a to 1n when signals that cause an abnormal operation to the communication means 2a to 2n are input / output. Input / output signal processing is performed in the previous stage. That is, when an abnormality occurs in the vehicle network in which the harness is wireless and signals are input / output to / from the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally, the input / output signals are processed. The gateway 3 has an input / output signal processing unit (4 in FIG. 1 and the like). As a result, input / output signals to the communication means 2a to 2n that cause the in-vehicle units 1a to 1n to operate abnormally are stopped, and input to the communication means 2a to 2n that allows the in-vehicle units 1a to 1n to perform normal operations. Compared with a unit having a function of generating an output signal as a unit other than the gateway 3 (4 in FIG. 1 and the like), the configuration can be simplified.
The embodiment described above is described in order to facilitate understanding of the present invention, and is not described in order to limit the present invention. Therefore, each element disclosed in the above embodiment includes all design changes and equivalents belonging to the technical scope of the present invention. Moreover, it is possible to combine and implement each component of each said embodiment.

It is a figure which shows the structure of the vehicle-mounted communication apparatus of the 1st Embodiment of this invention. It is a flowchart which shows the flow of operation | movement of the 1st Embodiment of this invention. It is a figure which shows the combination of the input / output signal which causes the power window motor in the 1st Embodiment of this invention to perform abnormal operation, and the input / output signal which performs safe operation | movement. It is a figure which shows the combination of the input / output signal which causes the abnormal operation | movement of the automatic transmission in the 1st Embodiment of this invention, and the combination of the input / output signal which performs safe operation | movement. An example of the abnormal operation input / output signal list and the safe operation input / output signal list in the first embodiment of the present invention is shown. It is a figure which shows the structure of the vehicle-mounted communication apparatus of the 2nd Embodiment of this invention. It is a figure which shows an example of communication means ID-> vehicle-mounted unit ID reference list in the 2nd Embodiment of this invention. It is a figure which shows the structure of the vehicle-mounted communication apparatus of the 3rd Embodiment of this invention. It is a flowchart which shows the flow of operation | movement of the 3rd Embodiment of this invention. It is a figure which shows reflection of the input / output signal at the time of abnormal operation regarding the power window motor in the 3rd Embodiment of this invention, and the input / output signal at the time of the next sampling. It is a figure which shows the structure of the vehicle-mounted communication apparatus of the 4th Embodiment of this invention. It is a flowchart which shows the flow of operation | movement of the 4th Embodiment of this invention. It is a figure which shows an example of the vehicle-mounted unit in the door of the 4th Embodiment of this invention. It is a figure which shows an example of the process order definition list | wrist in the 4th Embodiment of this invention. It is a figure which shows the structure of the vehicle-mounted communication apparatus of the 5th Embodiment of this invention.

Explanation of symbols

1a to 1n ... vehicle-mounted unit 1c ... power window switch 1d ... power window motor module 1e ... automatic shift gate 1f ... transmission module 2a-2n ... communication means 3 ... gateway 4 ... input / output signal processing unit 5 ... ID detection means 5 6 ... Input / output signal detection means 7 ... Abnormal operation determination means 8 ... Input / output signal processing determination means 9 ... Input / output signal processing instruction means 11d ... Power window motor 12d ... Anti-pinch circuit 13f ... Transmission 14f ... Automatic control unit 51 ... In-vehicle unit ID Detection unit 52 ... Communication means ID detection unit 71 ... Input / output signal list during abnormal operation 72 ... ID-input / output signal inquiry unit 73 ... Vehicle signal detection unit 81 ... Safe operation input / output signal list 82 ... Next sampling signal reflection unit 91 ... Signal processing Order determining unit 711 ... Communication means ID → Unit ID inquiry list 911 ... Processing order definition list

Claims (12)

An in-vehicle unit having a unique ID and operating as part of the vehicle;
A communication means having a unique ID and connected to the in-vehicle unit;
A gateway that supervises communication by the communication means;
ID detection means;
An input / output signal detection means for detecting an input / output signal for the communication means;
An abnormal operation determining means for determining that the in-vehicle unit causes an abnormal operation when a signal that causes the in-vehicle unit to perform an abnormal operation is input to and output from the communication unit;
Input / output signal processing determining means for determining to change the input / output signal that causes the in-vehicle unit to perform an abnormal operation to a signal that causes the in-vehicle unit to perform a correct operation;
An in-vehicle communication device having an input / output signal processing instruction means for instructing the communication means to reflect the input / output signal determined by the input / output signal processing determination means,
The input / output signal processing instructing means processes the input / output signal at a stage prior to inputting / outputting the signal to / from the in-vehicle unit when a signal causing an abnormal operation is input / output to / from the communication means. An in-vehicle communication device characterized by the above. An in-vehicle unit having a unique ID and operating as part of the vehicle;
A communication means having a unique ID and connected to the in-vehicle unit;
An in-vehicle communication device having a gateway that controls communication by the communication means,
The gateway is
ID detection means;
An input / output signal detection means for detecting an input / output signal for the communication means;
An abnormal operation determining means for determining that the in-vehicle unit causes an abnormal operation when a signal that causes the in-vehicle unit to perform an abnormal operation is input to and output from the communication unit;
Input / output signal processing determining means for determining to change the input / output signal that causes the in-vehicle unit to perform an abnormal operation to a signal that causes the in-vehicle unit to perform a correct operation;
An input / output signal processing instruction means for instructing the communication means to reflect the input / output signal determined by the input / output signal processing determination means;
The input / output signal processing instructing means processes the input / output signal at a stage prior to inputting / outputting the signal to / from the in-vehicle unit when a signal causing an abnormal operation is input / output to / from the communication means. An in-vehicle communication device characterized by the above. The ID detection means includes
An in-vehicle unit ID detection unit for detecting the ID of the in-vehicle unit;
The abnormal operation determination means includes
A vehicle signal detector for detecting the vehicle signal;
An abnormal operation input / output signal list that describes the relationship between the ID and input / output signal of the in-vehicle unit when a signal that causes the in-vehicle unit to operate abnormally is input / output to / from the communication means;
Refers to the ID of the in-vehicle unit from the abnormal operation input / output signal list, and inquires the input / output signal of the communication unit when a signal that causes the abnormal operation of the in-vehicle unit is input to or output from the communication unit. An ID-input / output signal inquiry unit
Referring to the in-vehicle unit ID, input / output signal, and vehicle signal, the input / output signal list at the time of abnormal operation is referred to and a signal that causes an abnormal operation to the communication means is input / output. The in-vehicle communication device according to claim 1, wherein the in-vehicle communication device is determined. The ID detection means includes
A communication means ID detecting unit for detecting an ID of the communication means;
The abnormal operation determination means includes
A vehicle signal detector for detecting a vehicle signal;
An abnormal operation input / output signal list that describes the relationship between the ID and input / output signal of the in-vehicle unit when a signal that causes the in-vehicle unit to operate abnormally is input / output to / from the communication means;
Refers to the ID of the in-vehicle unit from the abnormal operation input / output signal list, and inquires the input / output signal of the communication unit when a signal that causes the abnormal operation of the in-vehicle unit is input to or output from the communication unit. An ID-input / output signal inquiry unit
The abnormal operation input / output signal list is
The communication means ID describing the relationship between the ID of the communication means and the ID of the in-vehicle unit → the in-vehicle unit ID inquiry list,
The abnormal operation determination means includes
The ID of the in-vehicle unit connected to the communication means is inquired from the detected ID of the communication means, and the input / output signal of the communication means is referred to so that the in-vehicle unit causes an abnormal operation. The in-vehicle communication device according to claim 1 or 2, wherein an inquiry is made with an output signal pattern to determine whether or not a signal that causes an abnormal operation to the communication means is input / output. The abnormal operation input / output signal list is
The in-vehicle communication device according to claim 3 or 4, wherein a state in which a contradictory signal is input or output simultaneously with a signal currently input or output to the communication unit is described. The abnormal operation input / output signal list is
The in-vehicle communication device according to claim 3 or 4, wherein a combination of input and output signals for realizing a function that is not used in the current running state of the vehicle is described. The abnormal operation input / output signal list is
In a state where the vehicle is traveling forward, a shift position is selected such that the vehicle is traveling backwards.
In a state where the vehicle is traveling backward, a shift position is selected such that the vehicle is traveling forward.
The in-vehicle communication device according to claim 6, wherein at least one of a shift position in which power is not transmitted in the traveling state of the vehicle is selected. The input / output signal processing determining means includes:
In the current driving scene and usage scene of the vehicle, for the user, it has a safe operation input / output signal list that describes input / output signals such that the in-vehicle unit performs a safer operation,
The present invention is characterized in that an input / output signal that causes the in-vehicle unit to operate abnormally is changed to an input / output signal that allows the in-vehicle unit to perform a safer operation for the user. Item 3. The in-vehicle communication device according to item 1 or 2. The input / output signal processing determining means includes:
The input / output signal for the communication means detected at the next timing at which the signal should be input / output is determined by the ID-input / output signal inquiry unit to determine whether it is a normal signal combination for the in-vehicle unit. A second sampling signal reflecting unit for reflecting the detected input / output signal to the communication means,
The input / output signal is changed so that the in-vehicle unit performs a normal operation with respect to the communication means that is currently inputting / outputting a signal that causes the abnormal operation of the in-vehicle unit. The in-vehicle communication device according to 3 or 4. The input / output signal processing instruction means
A signal processing order determination unit for determining an order of changing input / output signals to the communication means;
Currently, the in-vehicle unit performs a normal operation based on the order determined by the signal processing order determination unit with respect to the communication means in which a signal that causes an abnormal operation of the in-vehicle unit is input / output. The in-vehicle communication device according to claim 1, wherein the input / output signal is changed to such an input / output signal. The signal processing order determination unit includes:
A processing order definition list that describes the order of changing the input / output signals for the communication means;
Based on the order described in the processing order definition list, the in-vehicle unit performs a normal operation with respect to the communication means that is currently inputting / outputting a signal that causes the in-vehicle unit to operate abnormally. The in-vehicle communication device according to claim 10, wherein the input / output signal is changed. An in-vehicle unit having a unique ID and operating as part of the vehicle;
A communication means having a unique ID and connected to the in-vehicle unit;
A gateway that supervises communication by the communication means;
ID detection means;
An input / output signal detection means for detecting an input / output signal for the communication means;
An abnormal operation determining means for determining that the in-vehicle unit causes an abnormal operation when a signal that causes the in-vehicle unit to perform an abnormal operation is input to and output from the communication unit;
Input / output signal processing determining means for determining to change the input / output signal that causes the in-vehicle unit to perform an abnormal operation to a signal that causes the in-vehicle unit to perform a correct operation;
In-vehicle communication using an in-vehicle communication apparatus having an input / output signal processing instruction means for instructing the communication means to reflect the input / output signal determined by the input / output signal processing determination means via the gateway A method,
The input / output signal processing instructing means processes the input / output signal at a stage prior to input / output of the signal to / from the in-vehicle unit when a signal that causes an abnormal operation to the communication means is input / output. An in-vehicle communication method characterized by the above.

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