Management device, non-transitory computer-readable storage medium storing control program, and control method

Abstract

The invention relates to a management apparatus, a non-transitory computer-readable storage medium storing a control program, and a control method. A management device is applied to an in-vehicle network system provided with a plurality of electronic control devices. When the state of the vehicle is the first state, the management device supplies power to the electronic control devices included in the first group among the plurality of electronic control devices and does not supply power to the electronic control devices not included in the first group. When the state of the vehicle is a second state different from the first state, the management device supplies power to electronic control devices included in a second group different from the first group among the plurality of electronic control devices, and does not supply power to electronic control devices not included in the second group.

Description

Technical Field

[0001] The present disclosure relates to a management device, a non-transitory computer-readable storage medium storing a control program, and a control method. Background Art

[0002] Japanese Patent Application Publication No. 2021-011228 discloses an in-vehicle network system as a network system of a vehicle. The in-vehicle network system includes: a plurality of electronic control devices that communicate with each other and respectively perform processing to achieve specific functions, and a management device that activates each electronic control device. The management device activates the electronic control device by requesting activation using communication.

[0003] In the vehicle network system described in the above patent document, the management device supplies power to a plurality of electronic control devices to realize a specific function. However, the more the number of electronic control devices to which power is supplied increases, the greater the power consumption. Summary of the invention

[0004] According to one embodiment of the present disclosure, there is provided a management device, which is a management device of a network system of a vehicle having a plurality of electronic control devices constituting a plurality of groups, each of the plurality of groups including at least one of the plurality of electronic control devices, each of the first group and the second group being one of the plurality of groups, the first group and the second group being different from each other, the management device being configured such that, when the state of the vehicle is a first state, power is supplied to the at least one electronic control device included in the first group, while power is not supplied to at least one of the plurality of electronic control devices not included in the first group, and when the state of the vehicle is a second state different from the first state, power is supplied to the at least one electronic control device included in the second group, while power is not supplied to at least one of the plurality of electronic control devices not included in the second group.

[0005] According to one embodiment of the present disclosure, a non-temporary computer-readable storage medium is provided, storing a control program, wherein a network system of a vehicle comprises a plurality of electronic control devices and a management device constituting a plurality of groups, each of the plurality of groups comprising at least one of the plurality of electronic control devices, each of the first group and the second group being one of the plurality of groups, the first group being different from the second group, and the control program being configured to cause the management device to perform the following processing when executed by the management device: when the state of the vehicle is a first state, power is supplied to the at least one electronic control device included in the first group, while power is not supplied to at least one of the plurality of electronic control devices not included in the first group; and when the state of the vehicle is a second state different from the first state, power is supplied to the at least one electronic control device included in the second group, while power is not supplied to at least one of the plurality of electronic control devices not included in the second group.

[0006] According to one embodiment of the present disclosure, a control method is provided for controlling a network system of a vehicle having a plurality of electronic control devices constituting a plurality of groups, each of the plurality of groups including at least one of the plurality of electronic control devices, a first group and a second group each being one of the plurality of groups, the first group and the second group being different from each other, the control method comprising: when the state of the vehicle is a first state, a management device of the network system supplies power to the at least one electronic control device included in the first group, and does not supply power to at least one of the plurality of electronic control devices not included in the first group; and when the state of the vehicle is a second state different from the first state, the management device supplies power to the at least one electronic control device included in the second group, and does not supply power to at least one of the plurality of electronic control devices not included in the second group. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram showing the configuration of an in-vehicle network system including a management device according to one embodiment.

[0008] Figure 2 This is a table showing the relationship between the electronic control devices, groups, and clusters to which power is supplied according to the state of the vehicle in the in-vehicle network system of the embodiment.

[0009] Figure 3 This is a Venn diagram showing the relationship between groups, clusters, and sets of electronic control devices in the in-vehicle network system according to the embodiment.

[0010] Figure 4 This is a flowchart showing the flow of processing related to power supply to an electronic control device executed by a management device.

[0011] Figure 5 This is a flowchart showing the flow of processing related to activation of electronic control devices in a group executed by the management device.

[0012] Figure 6 This is a flowchart showing the flow of processing related to transition of electronic control devices in a group to a standby state, which is executed by the management device.

[0013] Figure 7 This is a schematic diagram for explaining the manner in which the management device activates the electronic control device in the first example.

[0014] Figure 8 This is a schematic diagram for explaining the manner in which the management device activates the electronic control device in the second example.

[0015] Fig. 9 This is a schematic diagram for explaining the manner in which the management device activates the electronic control device in the third example.

[0016] Fig.10 This is a schematic diagram for explaining the manner in which the management device supplies power to the electronic control device in the fourth example.

[0017] Fig.11 This is a flowchart showing the flow of processing related to power supply to an electronic control device executed by the management device according to the modified example.

[0018] Fig.12 This is a flowchart showing the flow of processing on the electronic control device in the operating state executed by the management device of the modification example when the state of the vehicle changes.

[0019] Fig.13 This is a table showing the relationship between the electronic control devices, groups, and clusters to which power is supplied according to the state of the vehicle in the in-vehicle network system of the embodiment of the modification example. DETAILED DESCRIPTION

[0020] Below, refer to Figures 1 to 10 An implementation of the management device will be described below.

[0021] <Configuration of the in-vehicle network system 100>

[0022] like Figure 1 As shown, the vehicle-mounted network system 100 as a network system of the vehicle includes a management device 10 and a plurality of electronic control devices (ECUs). Hereinafter, the electronic control device may be referred to as ECU in the drawings.

[0023] The management device 10 includes a processing device 11 and a storage device 12. The storage device 12 stores programs. The programs stored in the storage device 12 include control programs related to power supply and activation of multiple electronic control devices in the vehicle network system 100. The processing device 11 executes the programs stored in the storage device 12 to perform various processes. The processing device 11 includes a processor.

[0024] The electronic control device has three states: a rest state in which power is not supplied, a standby state in which power is supplied but the device stops operating to reduce power consumption, and an operating state in which power is supplied and processing can be executed.

[0025] The in-vehicle network system 100 includes a first ECU 21 , a second ECU 22 , a third ECU 23 , a fourth ECU 24 , a fifth ECU 25 , and a sixth ECU 26 as electronic control devices.

[0026] like Figure 1 As shown by the dotted lines, the management device 10 is connected to a plurality of electronic control devices via power lines. The management device 10 is connected to the first ECU 21 via the first power line 41. The management device 10 is connected to the second ECU 22 via the second power line 42. The management device 10 is connected to the third ECU 23 via the third power line 43. The management device 10 is connected to the fourth ECU 24 via the fourth power line 44. The management device 10 is connected to the fifth ECU 25 via the fifth power line 45. The management device 10 is connected to the sixth ECU 26 via the sixth power line 46.

[0027] The management device 10 is supplied with power from the power supply. The management device 10 supplies the power supplied from the power supply to the electronic control device through the power line. The management device 10 supplies power to the first ECU 21 through the first power line 41. The management device 10 supplies power to the second ECU 22 through the second power line 42. The management device 10 supplies power to the third ECU 23 through the third power line 43. The management device 10 supplies power to the fourth ECU 24 through the fourth power line 44. The management device 10 supplies power to the fifth ECU 25 through the fifth power line 45. The management device 10 supplies power to the sixth ECU 26 through the sixth power line 46.

[0028] The management device 10 includes a first relay unit 13 , a second relay unit 14 , and a third relay unit 15 .

[0029] The first relay unit 13 is connected to the first power line 41 and the second power line 42. The first relay unit 13 controls whether power is supplied to the first ECU 21 and the second ECU 22. When the first relay unit 13 closes the relay connected to the first power line 41, power is supplied to the first ECU 21 through the first power line 41. When the first relay unit 13 closes the relay connected to the second power line 42, power is supplied to the second ECU 22 through the second power line 42.

[0030] The second relay unit 14 is connected to the third power line 43 and the fourth power line 44. The second relay unit 14 controls whether power is supplied to the third ECU 23 and the fourth ECU 24. When the second relay unit 14 closes the relay connected to the third power line 43, power is supplied to the third ECU 23 through the third power line 43. When the second relay unit 14 closes the relay connected to the fourth power line 44, power is supplied to the fourth ECU 24 through the fourth power line 44.

[0031] The third relay unit 15 is connected to the fifth power line 45 and the sixth power line 46. The third relay unit 15 controls whether power is supplied to the fifth ECU 25 and the sixth ECU 26. When the third relay unit 15 closes the relay connected to the fifth power line 45, power is supplied to the fifth ECU 25 through the fifth power line 45. When the third relay unit 15 closes the relay connected to the sixth power line 46, power is supplied to the sixth ECU 26 through the sixth power line 46.

[0032] In this way, the management device 10 can supply power to a specific electronic control device. The electronic control device supplied with power shifts from the sleep state to the standby state.

[0033] The management device 10 is connected to a plurality of electronic control devices via communication lines. The management device 10 is connected to the first ECU 21 and the second ECU 22 via the first communication line 31. The management device 10 is connected to the third ECU 23 and the fourth ECU 24 via the second communication line 32. The management device 10 is connected to the fifth ECU 25 and the sixth ECU 26 via the third communication line 33.

[0034] The management device 10 sends a message including a signal requesting activation and the destination of the signal, i.e., identification information of the electronic control device, through the communication line. Specifically, the management device 10 sends a message to the first ECU 21 and the second ECU 22 through the first communication line 31. The management device 10 sends a message to the third ECU 23 and the fourth ECU 24 through the second communication line 32. The management device 10 sends a message to the fifth ECU 25 and the sixth ECU 26 through the third communication line 33.

[0035] When the electronic control device is transferred to the standby state, it can receive a message from the management device 10. The electronic control device that receives the message from the management device 10 confirms the information indicating the destination included in the received message. When the electronic control device determines that the message is a message sent to itself, it starts according to the received signal. That is, when the electronic control device in the standby state receives a message with itself as the destination, it transfers from the standby state to the operating state. On the other hand, when the electronic control device determines that the message is not a message sent to itself, it ignores the received signal. In this way, the management device 10 can start only a specific electronic control device by sending a message via the communication line.

[0036] The electronic control device that has shifted to the operating state communicates with other electronic control devices that have also shifted to the operating state, and each performs processing to realize a specific function. The specific function is realized by the electronic control device, so that the vehicle can provide the function to the user.

[0037] While the specific function is being performed, the electronic control device periodically transmits a signal requesting the management device 10 to continue the operation through the communication line. When the vehicle has completed providing the function, the electronic control device stops transmitting the signal requesting the operation to continue.

[0038] The management device 10 sends a message including a signal requesting start-up to the operating electronic control device through the communication line while receiving a signal requesting continuation of operation from the electronic control device. If the management device 10 no longer receives a signal requesting continuation of operation from the electronic control device, it stops sending the message.

[0039] The electronic control device activated by the management device 10 continues to operate for a certain period of time whenever it receives a message to itself including a signal requesting activation from the management device 10 via the communication line. If the state in which no message to itself including a signal requesting activation is received from the management device 10 via the communication line continues, the electronic control device executes a transition process for stopping the operation and transitioning to the standby state.

[0040] In the transfer process, the electronic control device stores data in the memory. During the transfer process, the electronic control device sends a signal indicating that the transfer process is being executed to the management device 10. Thus, the management device 10 can recognize the electronic control device that is executing the transfer process.

[0041] <Combination of electronic control devices for power supply and activation by the management device 10>

[0042] As described above, the management device 10 can supply power to a specific electronic control device through a power line. The management device 10 supplies power to the electronic control devices included in the group corresponding to the state according to the state of the vehicle. The group refers to a combination of electronic control devices to which the management device 10 supplies power according to the state of the vehicle. In addition, the state of the vehicle may also include a state where there is no group for power supply.

[0043] Figure 2 This is a table showing the relationship between the electronic control devices, groups, and clusters to which power is supplied according to the state of the vehicle.

[0044] like Figure 2 As shown, when the management device 10 determines that the state of the vehicle is parked and charging, power is supplied to the first ECU 21, the second ECU 22, the fourth ECU 24, and the sixth ECU 26. Hereinafter, the state in which the vehicle is parked and charging is referred to as the first state. In addition, the group to which power is supplied when the management device 10 determines that the state of the vehicle is the first state is referred to as the first group 51.

[0045] like Figure 2 As shown, when the management device 10 determines that the state of the vehicle is parked and not being charged, power is supplied to the first ECU 21, the third ECU 23, the fifth ECU 25, and the sixth ECU 26. Hereinafter, the state in which the vehicle is parked and not being charged is referred to as the second state. In addition, the group to which power is supplied when the management device 10 determines that the state of the vehicle is the second state is referred to as the second group 52.

[0046] As described above, the electronic control device communicates with other electronic control devices to implement specific functions. In each group, the electronic control devices that need to be in operation in order to provide the vehicle with a specific function constitute a cluster. That is, the electronic control devices included in the group constitute a cluster for each function to be implemented.

[0047] The management device 10 is requested to implement a specific function from other devices. For example, the management device 10 receives a signal requesting the vehicle to provide a specific function from an electronic control device that is connected to the vehicle for communication and can detect user operations. The management device 10 activates an electronic control device included in a cluster that implements the function from among the electronic control devices included in the group, according to the function to be provided by the vehicle.

[0048] like Figure 2 as well as Figure 3 As shown, in the first group 51, the first ECU 21 and the sixth ECU 26 constitute the first cluster 61. The first ECU 21 and the sixth ECU 26 can realize a specific function in the first group 51 by communicating with each other. Figure 2 as well as Figure 3 As shown, in the first group 51, the second ECU 22 and the fourth ECU 24 constitute the second cluster 62. Similarly, the second ECU 22 and the fourth ECU 24 can realize functions different from those of the first cluster 61 in the first group 51 by communicating with each other.

[0049] like Figure 1 As shown, the first ECU 21 is connected to the first communication line 31. In addition, the sixth ECU 26 is connected to the third communication line 33. That is, the first cluster 61 is composed of two ECUs connected to different communication lines. In this way, the cluster can be composed of a plurality of ECUs connected to different communication lines. In addition, the cluster can also be composed of a plurality of ECUs connected to the same communication line.

[0050] like Figure 2 as well as Figure 3 As shown, in the second group 52, the first ECU 21 and the third ECU 23 constitute a third cluster 63. The first ECU 21 and the third ECU 23 can realize a specific function in the second group 52 by communicating with each other. Figure 2 as well as Figure 3 As shown, in the second group 52, the fifth ECU 25 and the sixth ECU 26 form a fourth cluster 64. Similarly, the fifth ECU 25 and the sixth ECU 26 can realize a function different from that of the third cluster 63 in the second group 52 by communicating with each other.

[0051] like Figure 3 As shown, the first ECU 21 and the sixth ECU 26 are included in both the first group 51 and the second group 52. In this way, there are electronic control devices that belong to a plurality of groups. Also, there are electronic control devices that belong to a plurality of clusters in the same group.

[0052] The clusters existing in the group realize specific functions that the vehicle can provide in the state of the vehicle corresponding to the group. In other words, the group is composed of clusters corresponding to specific functions that the vehicle can provide in the state of the vehicle corresponding to the group.

[0053] The management device 10 activates the electronic control device for each cluster according to the functions provided in the same group. On the other hand, the management device 10 does not activate the cluster not included in the group corresponding to the state of the vehicle. Figure 3 As shown, when the state of the vehicle is the first state, the electronic control device included in the fourth cluster 64 is not activated.

[0054] <Flow of Processing Related to Power Supply to Electronic Control Device Executed by Processing Device 11>

[0055] Figure 4 1 shows a series of processes when the management device 10 supplies power to the group of electronic control devices. The series of processes are executed by the processing device 11 of the management device 10 performing processes according to the control program stored in the storage device 12 .

[0056] This series of processing is performed when the management device 10 detects that the state of the vehicle has changed to another state. Specifically, when it is detected that the user has plugged a charging plug into the vehicle while the vehicle is parked, the management device 10 detects that the state of the vehicle has changed from the parked and non-charging state to the parked and charging state.

[0057] In the process of step S10, the processing device 11 determines the state of the vehicle. Specifically, the management device 10 determines the state of the vehicle by determining whether the vehicle is stopped, whether a charging plug is inserted into the vehicle, and the like.

[0058] The management device 10 may include information such as whether a user is on board the vehicle in the vehicle state. The management device 10 may include a state determined by whether a predetermined time has passed since the operation of the user of the vehicle in the vehicle state.

[0059] In the next step S11, the processing device 11 determines the group of power supply objects. The storage device 12 stores Figure 2 The processing device 11 identifies the group corresponding to the state of the vehicle as the group to be powered based on the data stored in the storage device 12.

[0060] In the next step S12, the processing device 11 determines whether there is an electronic control device in the standby state or the operating state in the vehicle network system 100. Among the plurality of electronic control devices, the electronic control device included in the group corresponding to the state before the vehicle state transition is in the standby state or the operating state.

[0061] In the process of step S12 , when the processing device 11 determines that there is an electronic control device in the standby state or the operating state in the vehicle-mounted network system 100 (step S12 : Yes), the process proceeds to step S13 .

[0062] In the process of step S13, the processing device 11 stops the power supply to the electronic control device described below. The electronic control device to which the processing device 11 stops the power supply is an electronic control device included in the group corresponding to the state of the vehicle before the transfer and not included in the group corresponding to the state of the vehicle after the transfer. The electronic control device to which the power supply is stopped changes from the standby state or the operating state to the dormant state. The processing device 11 that has completed the process of step S13 proceeds to step S14.

[0063] In the process of step S12, when the processing device 11 determines that there is no electronic control device in the standby state or the operating state in the vehicle network system 100 (step S12: No), the process proceeds to step S14. That is, when the processing device 11 determines that there is no electronic control device in the standby state or the operating state in the vehicle network system 100, the process of step S13 is skipped. The case where there is no electronic control device in the standby state or the operating state in the vehicle network system 100 is, for example, a case where there is no group to be powered before the state transition of the vehicle.

[0064] In the process of step S14, the processing device 11 supplies power to the electronic control device through the power line. At this time, the electronic control device to which the processing device 11 supplies power is the electronic control device included in the group corresponding to the state of the vehicle determined in the process of step S11. In the process of step S13, the power supply is not stopped for the electronic control device included in the group corresponding to the state of the vehicle after the transfer. Therefore, in the process of step S14, the management device 10 supplies power to the electronic control device included in the group corresponding to the state of the vehicle after the transfer among the multiple electronic control devices to which the power supply is stopped. In addition, when there is no group corresponding to the state of the vehicle after the transfer, the processing device 11 does not supply power to the electronic control device. The processing device 11 that supplies power to the electronic control device thus ends the series of processes.

[0065] <Flow of Processing Related to Activation of Electronic Control Device Executed by Processing Device 11>

[0066] Figure 5 It shows that the management device 10 will be included in the use Figure 4 The series of processes shown is a series of processes when the electronic control device of the group powered on is started. The series of processes are executed by the processing device 11 of the management device 10 according to the control program stored in the storage device 12. The series of processes are executed when the management device 10 receives a request for the implementation of a specific function from other devices.

[0067] In the process of step S20, the processing device 11 determines a cluster to be activated from the clusters included in the group in the standby state. At this time, the processing device 11 determines a cluster that realizes a specific function requested by other devices as the cluster to be activated.

[0068] In the next step S21, the processing device 11 starts all the electronic control devices included in the cluster determined in the step S20. At this time, the processing device 11 sends a message to the electronic control device to be started through the communication line. The multiple electronic control devices that receive the message and start communicate with each other and perform processing to achieve specific functions.

[0069] The processing device 11 that has activated the electronic control device completes the series of processing.

[0070] <Flow of Processing Related to Transition of the Electronic Control Device to the Standby State Executed by the Processing Device 11>

[0071] Figure 6 The management device 10 is shown to include the use of Figure 5 The series of processes shown are a series of processes when the electronic control devices of the activated cluster shift from the operating state to the standby state. The series of processes are executed by the processing device 11 of the management device 10 performing processing according to the control program stored in the storage device 12 .

[0072] As described above, the electronic control device periodically sends a signal requesting the management device 10 to continue operation while the specific function is being realized. Furthermore, while receiving the signal requesting the continued operation, the management device 10 sends a message to the electronic control device in operation. This series of processing is performed when the management device 10 no longer receives such a signal requesting the continued operation from the electronic control device that has realized the specific function.

[0073] In the process of step S30, the processing device 11 stops sending messages to the electronic control device that has completed the specific function. The electronic control device that no longer receives the message starts the transition process to move to the standby state. Then, the electronic control device that has completed the transition process shifts from the operating state to the standby state.

[0074] The management device 10 that has stopped sending messages to the electronic control device ends the series of processing. In this way, the management device 10 stops sending messages to the electronic control device that has achieved a specific function, thereby changing the electronic control device from the operating state to the standby state.

[0075] <Function of this embodiment>

[0076] Figures 7-10 Each of these shows an example of the effect of the management device 10 executing the above-mentioned processing. Hereinafter, the effect of the management device 10 will be described by showing four specific examples, namely, the first example, the second example, the third example, and the fourth example.

[0077] Figure 7 The first example shows how the management device 10 performs power supply to the electronic control device and activation of the electronic control device. The first example assumes that when the vehicle is in the first state, another device requests a function that can be implemented by the electronic control device included in the first cluster 61.

[0078] In the first example, the state of the vehicle is the first state. Figure 2 As described above, in the first state, the management device 10 supplies power to the electronic control devices included in the first group 51 surrounded by the one-dot chain line.

[0079] like Figure 7 As shown, the management device 10 supplies power to the first ECU 21, which is an electronic control device included in the first group 51, through the first power line 41. Figure 7 As shown, the management device 10 supplies power to the second ECU 22, which is an electronic control device included in the first group 51, through the second power line 42. Figure 7 As shown, the management device 10 supplies power to the fourth ECU 24, which is an electronic control device included in the first group 51, through the fourth power line 44. Figure 7 As shown, the management device 10 supplies power to the sixth ECU 26, which is an electronic control device included in the first group 51, through the sixth power line 46. The first ECU 21, the second ECU 22, the fourth ECU 24, and the sixth ECU 26, which are thus powered, are transferred from the dormant state to the standby state. On the other hand, the third ECU 23 and the fifth ECU 25, which are not powered by the management device 10, are in the dormant state.

[0080] In the first example, the management device 10 performs Figure 5 The electronic control device included in the first cluster 61 is determined to be capable of implementing the function required by the other device through the process of step S20 .

[0081] Next, the management device 10 performs Figure 5 The electronic control device included in the first cluster 61 is activated by the process of step S21. Specifically, the management device 10 sends a message to the first ECU 21 through the first communication line 31 and sends a message to the sixth ECU 26 through the third communication line 33 to shift the first ECU 21 and the sixth ECU 26 from the standby state to the operating state.

[0082] Figure 8 The manner in which the management device 10 performs power supply to the electronic control device and activation of the electronic control device in the second example is shown. The second example is an example in which a scenario is assumed in which, after the first example and before the electronic control device included in the first cluster 61 performs a specific function, another device is requested to perform a function that can be performed by the electronic control device included in the second cluster 62 without changing the vehicle state. Therefore, in the second example, the vehicle state is the first state following the first example.

[0083] In the second example, the management device 10 performs Figure 5 The electronic control device included in the second cluster 62 is determined to be capable of implementing the function required by the other device through the process of step S20 .

[0084] Next, the management device 10 performs Figure 5 The electronic control device included in the second cluster 62 is activated by the process of step S21. Specifically, the management device 10 sends a message to the second ECU 22 through the first communication line 31 and sends a message to the fourth ECU 24 through the second communication line 32, thereby shifting the second ECU 22 and the fourth ECU 24 from the standby state to the operating state.

[0085] In the second example, the electronic control device included in the first cluster 61 has not yet fully realized a specific function. Therefore, the management device 10 sends a message to the first communication line 31 and the third communication line 33 to keep the electronic control device included in the first cluster 61 in operation.

[0086] Fig. 9The manner in which the management device 10 performs power supply to the electronic control device and activation of the electronic control device in the third case is shown. The third case is an example of a scenario in which the electronic control devices included in the first cluster 61 have completed their specific functions after the second case and when the electronic control devices included in the second cluster 62 have completed their specific functions. Therefore, in the third case, the state of the vehicle is the first state following the second case.

[0087] In the third example, the electronic control device included in the first cluster 61 stops sending the signal requesting the continuation of operation because the specific function has been achieved. Figure 6 In the process of step S30, the transmission of messages to the first ECU 21 and the sixth ECU 26 as the electronic control devices included in the first cluster 61 is stopped. Then, the first ECU 21 and the sixth ECU 26 as the electronic control devices included in the first cluster 61 are transferred from the operating state to the standby state through the transfer process.

[0088] In the third example, the electronic control device included in the second cluster 62 has not yet fully realized a specific function. Therefore, the management device 10 sends a message to the first communication line 31 and the second communication line 32 to keep the electronic control device included in the second cluster 62 in the operating state.

[0089] Fig.10 The fourth example shows how the management device 10 supplies power to the electronic control device. The fourth example assumes a scenario in which the vehicle state transitions from the first state to the second state after the third example and before the electronic control devices included in the second cluster 62 perform specific functions.

[0090] In the fourth example, the management device 10 detects that the state of the vehicle has changed to another state. Figure 4 The process of step S10 determines that the state of the vehicle after the transition is the second state.

[0091] Next, the management device 10 performs Figure 4 The group of power supply objects corresponding to the state of the vehicle after the transfer is determined by the processing of step S11. Figure 2 As described above, in the second state, the management device 10 supplies power to the electronic control device included in the second group 52 .

[0092] Next, the management device 10 performs Figure 4In the third example, since the electronic control devices included in the first cluster 61 are in the standby state and the electronic control devices included in the second cluster 62 are in the operating state, the management device 10 determines that there is an electronic control device in the standby state or the operating state.

[0093] Next, the management device 10 performs Figure 4 The processing of step S13 is performed. In the third example, the electronic control devices that are powered and not included in the second group 52 are the second ECU 22 and the fourth ECU 24. In the fourth example, the state of the vehicle is transferred to the second state before the electronic control devices included in the second cluster 62 realize a specific function. Therefore, the management device 10 stops powering the second ECU 22 and the fourth ECU 24 and changes the second ECU 22 and the fourth ECU 24 from the operating state to the dormant state. On the other hand, power is continued to be supplied to the first ECU 21 and the sixth ECU 26 in the standby state.

[0094] Next, the management device 10 performs Figure 4 The electronic control device included in the second group 52 is powered by the processing of step S14. Fig.10 As shown, the management device 10 supplies power to the third ECU 23, which is an electronic control device included in the second group 52, through the third power line 43. Fig.10 As shown, the management device 10 supplies power to the fifth ECU 25, which is an electronic control device included in the second group 52, through the fifth power line 45. The third ECU 23 and the fifth ECU 25, which are powered in this way, are transferred from the dormant state to the standby state. In addition, the first ECU 21 and the sixth ECU 26, which are continuously powered, maintain the standby state. On the other hand, the second ECU 22 and the fourth ECU 24, which are no longer powered by the management device 10, are in the dormant state.

[0095] In this way, the management device 10 puts a specific electronic control device into a dormant state according to the state of the vehicle.

[0096] <Effects of the present embodiment>

[0097] (1) The management device 10 communicates with the electronic control device to change the electronic control device from the standby state to the operating state. In order for the electronic control device to be in the operating state, it is necessary for the electronic control device to be in the standby state as a prerequisite. However, even if the electronic control device is in the standby state, it consumes electricity. Therefore, the more electronic control devices are in the standby state, the greater the power consumption. The management device 10 can suppress the power consumption caused by such electronic control devices in the standby state in the vehicle network system 100.

[0098] (2) The management device 10 can put the electronic control device into a standby state, which is a state where power is supplied and the operation is stopped, and an operating state where power is supplied and the operation is possible.

[0099] (3) The management device 10 is connected to a plurality of electronic control devices so as to be communicable. The management device 10 can shift the electronic control devices from the standby state to the operating state by communicating with the electronic control devices.

[0100] (4) The management device 10 communicates with the electronic control devices included in the first group 51 when the state of the vehicle is the first state and the vehicle provides the first function. By doing so, the management device 10 puts the electronic control devices included in the first cluster 61, which is a combination of some electronic control devices included in the first group 51, into an operating state. On the other hand, by doing so, the management device 10 puts the electronic control devices included in the first group 51 but not included in the first cluster 61 into a standby state. When the state of the vehicle is the first state and the vehicle provides a second function different from the first function, the management device 10 communicates with the electronic control devices included in the first group 51. By doing so, the management device 10 puts the electronic control devices included in the second cluster 62, which is a combination of some electronic control devices included in the first group 51 and different from the first cluster 61, into an operating state. On the other hand, by doing so, the management device 10 puts the electronic control devices included in the first group 51 but not included in the second cluster 62 into a standby state.

[0101] When the vehicle is in the first state, power is supplied to the electronic control devices included in the first group 51. As a result, the electronic control devices included in the first group 51 are in a standby state in which they can all be transferred to an operating state. When the vehicle is in the first state, the management device 10 causes the electronic control devices included in the cluster corresponding to the function provided by the vehicle to be in an operating state from among the electronic control devices in the first group 51. As a result, when the vehicle provides a specific function, the management device 10 can quickly start the electronic control device that implements the specific function.

[0102] (5) Each cluster is composed of the above-mentioned electronic control devices that need to be in an operating state in order to provide the corresponding specific function. Moreover, the first group 51 is composed of clusters corresponding to specific functions that the vehicle may provide in the first state. The management device 10 supplies power only to electronic control devices related to functions that the vehicle may provide in the first state. On the other hand, the first group 51 does not include clusters corresponding to specific functions that the vehicle may not provide in the first state. Thus, the management device 10 can supply power to electronic control devices that may be activated in the first state without omission, while minimizing the number of electronic control devices to which power is supplied. That is, the management device 10 can effectively suppress the power consumption caused by the electronic control devices in the standby state in the vehicle network system 100.

[0103] (6) Each cluster is composed of the above-mentioned electronic control devices that need to be in an operating state in order to provide the corresponding specific function. Moreover, each group is composed of clusters corresponding to the specific functions that the vehicle may provide in the state of the vehicle corresponding to each group. Therefore, the management device 10 supplies power only to the electronic control devices related to the functions that the vehicle may provide in the state of the vehicle at that time, not only according to the first state, but also according to the state of the vehicle. Thus, the management device 10 can supply power to the electronic control devices that may be started in the state at that time without omission, while minimizing the number of electronic control devices to which power is supplied. That is, the management device 10 can effectively suppress the power consumption caused by the electronic control devices in the standby state in the vehicle network system 100.

[0104] (7) When the vehicle has provided a specific function, the management device 10 changes the electronic control device included in the cluster corresponding to the function from the operating state to the standby state. When the vehicle has provided a specific function, the management device 10 changes the electronic control device included in the cluster corresponding to the service from the operating state to the standby state. Thus, the management device 10 can reduce the power consumption of the electronic control device included in the cluster corresponding to the provided function.

[0105] (8) When the state of the vehicle is transferred to another state, the management device 10 stops the supply of power to the electronic control devices included in the group corresponding to the state of the vehicle before the transfer and not included in the group corresponding to the state of the vehicle after the transfer. When the state of the vehicle is transferred to another state, the management device 10 immediately stops the supply of power to the electronic control devices that do not need to operate in the state after the transfer. Therefore, the management device 10 can reduce the power consumption of the vehicle network system 100.

[0106] (9) When the state of the vehicle is the second state and the vehicle provides the third function, the management device 10 communicates with the electronic control device included in the second group 52. By doing so, the management device 10 can put the electronic control device included in the third cluster 63, which is a combination of a part of the electronic control devices included in the second group 52, into an operating state. On the other hand, by doing so, the management device 10 puts the electronic control device included in the second group 52 but not included in the third cluster 63 into a standby state. In addition, when the state of the vehicle is the second state and the vehicle provides a fourth function different from the third function, the management device 10 communicates with the electronic control device included in the second group 52. By doing so, the management device 10 puts the electronic control device included in the fourth cluster 64, which is a combination of a part of the electronic control devices included in the second group 52 and different from the third cluster 63, into an operating state. On the other hand, by doing so, the management device 10 puts the electronic control device included in the second group 52 but not included in the fourth cluster 64 into a standby state.

[0107] When the vehicle is in the second state, power is supplied to the electronic control devices included in the second group 52. Thus, all the electronic control devices included in the second group 52 are in a standby state capable of being transferred to an operating state. When the vehicle is in the second state, the management device 10 causes the electronic control devices included in the cluster corresponding to the function provided by the vehicle to be in an operating state from among the electronic control devices in the second group 52. Thus, when the vehicle provides a specific function, the management device 10 can quickly start the electronic control device that implements the specific function.

[0108] (10) The first state is a state where the vehicle is charging and parked, and the second state is a state where the vehicle is not charging and parked. When the vehicle is parked, the functions provided by the vehicle in the charging state and the non-charging state are different. Therefore, if the electronic control device that supplies power when the vehicle is charging and parked and when the vehicle is not charging and parked is divided into groups as described above, the management device 10 can effectively supply power.

[0109] (11) A control program is stored in a storage device 12 of a management device 10 in a vehicle network system 100 that is a network system of a vehicle having a plurality of electronic control devices. The control program causes the management device 10 to execute a process that supplies power to an electronic control device included in a first group 51, which is one of the groups including one or more electronic control devices, among the plurality of electronic control devices when the vehicle is in a first state. On the other hand, the control program causes the management device 10 to execute a process that does not supply power to an electronic control device that is not included in the first group 51 among the plurality of electronic control devices when the vehicle is in the first state. The control program causes the management device 10 to execute a process that supplies power to an electronic control device that is included in a second group 52 that is different from the first group 51 among the plurality of electronic control devices when the vehicle is in a second state that is different from the first state. On the other hand, the control program causes the management device 10 to execute a process that does not supply power to an electronic control device that is not included in the second group 52 among the plurality of electronic control devices when the vehicle is in a second state that is different from the first state.

[0110] The control program puts a specific electronic control device into a dormant state according to the state of the vehicle. Thus, the control program can suppress power consumption caused by the electronic control device in the standby state in the vehicle network system 100.

[0111] (12) The control program is executed by the management device 10 so that the electronic control device can be in a standby state, which is a state where power is supplied and the operation is stopped, and in an operating state where power is supplied and the operation is able to execute a process.

[0112] (13) The control program is executed by the management device 10 that is communicably connectable to a plurality of electronic control devices and causes the electronic control devices to shift from the standby state to the operating state by communicating with the electronic control devices.

[0113] (14) The control program causes the management device 10 to communicate with the electronic control devices included in the first group 51 when the state of the vehicle is the first state and the vehicle provides the first function. By doing so, the control program causes the management device 10 to perform the following processing: the electronic control devices included in the first cluster 61, which is a combination of some electronic control devices included in the first group 51, are put into operation. On the other hand, by doing so, the control program causes the management device 10 to perform the following processing: the electronic control devices included in the first group 51 but not included in the first cluster 61 are put into standby mode. The control program causes the management device 10 to communicate with the electronic control devices included in the first group 51 when the state of the vehicle is the first state and the vehicle provides a second function different from the first function. By doing so, the control program causes the management device 10 to perform the following processing: the electronic control devices included in the second cluster 62, which is a combination of some electronic control devices included in the first group 51 and different from the first cluster 61, are put into operation. On the other hand, by doing so, the control program causes the management device 10 to execute processing for placing the electronic control devices included in the first group 51 but not included in the second cluster 62 in the standby state.

[0114] When the vehicle is in the first state, power is supplied to the electronic control devices included in the first group 51. As a result, all the electronic control devices included in the first group 51 are in a standby state capable of being transferred to an operating state. When the vehicle is in the first state, the control program causes the electronic control devices included in the cluster corresponding to the function provided by the vehicle to be in an operating state from among the electronic control devices in the first group 51. As a result, when the vehicle provides a specific function, the control program can quickly start the electronic control device that implements the specific function.

[0115] (15) The control method is a control method for controlling a network system of a vehicle having a plurality of electronic control devices, namely, an in-vehicle network system 100. The control method includes a first step and a second step. In the first step, when the state of the vehicle is the first state, the management device 10 of the in-vehicle network system 100 supplies power to the electronic control device included in the first group 51. The first group 51 is one of the groups including one or more of the above-mentioned electronic control devices among the plurality of electronic control devices. On the other hand, in the first step, when the state of the vehicle is the first state, the management device 10 does not supply power to the electronic control device not included in the first group 51. In the second step, when the state of the vehicle is the second state different from the first state, the management device 10 supplies power to the electronic control device included in the second group 52 different from the first group 51 among the plurality of electronic control devices. On the other hand, in the second step, the management device 10 does not supply power to the electronic control device not included in the second group 52. The above-mentioned control method puts a specific electronic control device into a dormant state in accordance with the state of the vehicle. Thus, the above-described control method can suppress power consumption caused by the electronic control device in the standby state in the in-vehicle network system 100 .

[0116] (16) In the control method, the management device 10 that can put the electronic control device into a standby state, which is a state in which power is supplied and the operation is stopped, and an operating state in which power is supplied and the operation is capable of executing a process executes the first step and the second step.

[0117] (17) In the control method, the management device 10 which is communicably connected to a plurality of electronic control devices and can shift the electronic control devices from a standby state to an operating state by communicating with the electronic control devices executes the first step and the second step.

[0118] (18) The control method includes a third step and a fourth step. In the third step, when the state of the vehicle is the first state and the vehicle provides the first function, the management device 10 communicates with the electronic control device included in the first group 51. By doing so, the management device 10 puts the electronic control device included in the first cluster 61, which is a combination of a part of the electronic control devices included in the first group 51, into an operating state. On the other hand, by doing so, the management device 10 puts the electronic control device included in the first group 51 but not included in the first cluster 61 into a standby state. In the fourth step, when the state of the vehicle is the first state and the vehicle provides a second function different from the first function, the management device 10 communicates with the electronic control device included in the first group 51. By doing so, the management device 10 puts the electronic control device included in the second cluster 62, which is a combination of a part of the electronic control devices included in the first group 51 and different from the first cluster 61, into an operating state. On the other hand, by doing so, the management device 10 puts the electronic control device included in the first group 51 but not included in the second cluster 62 into a standby state.

[0119] When the vehicle is in the first state, power is supplied to the electronic control devices included in the first group 51. Thus, the electronic control devices included in the first group 51 are all in a standby state capable of being transferred to an operating state. When the vehicle is in the first state, the control method causes the electronic control devices included in the cluster corresponding to the function provided by the vehicle to be in an operating state from among the electronic control devices in the first group 51. Thus, when the vehicle provides a specific function, the control method can quickly start the electronic control device that implements the specific function.

[0120] <Change Example>

[0121] This embodiment can be implemented by modification as follows. This embodiment and the following modification examples can be implemented in combination with each other within the scope that there is no technical contradiction.

[0122] In the present embodiment, the management device 10 and the electronic control device are connected one-to-one via a power line. On the other hand, the management device 10 may be connected to a plurality of electronic control devices via one power line.

[0123] In the present embodiment, a group is composed of a plurality of electronic control devices connected to different communication lines. Alternatively, a group may be composed of a plurality of electronic control devices connected to the same communication line.

[0124] In this embodiment, each group is composed of clusters corresponding to specific functions that the vehicle may provide under the vehicle conditions corresponding to each group. Therefore, each group is composed only of electronic control devices related to the specific functions that the vehicle may provide under the vehicle conditions corresponding to each group. On the other hand, each group may also include electronic control devices that are not related to the specific functions that the vehicle may provide under the vehicle conditions corresponding to each group.

[0125] In the present embodiment, the management device 10 exchanges messages with the electronic control device via a communication line. Alternatively, the management device 10 may be connected to the electronic control device in a wireless communication manner and exchange messages via wireless communication.

[0126] At this time, the management device 10 cannot control the supply of power to the electronic control device that cannot communicate wirelessly with the management device 10 among the electronic control devices. Therefore, the electronic control device that cannot communicate wirelessly with the management device 10 is not the target of power supply by the management device 10. That is, the electronic control device that cannot communicate wirelessly with the management device 10 is not an electronic control device that constitutes the group to which the management device 10 supplies power.

[0127] In this embodiment, the management device 10 Figure 4 The management device 10 determines the state of the vehicle by itself in the process of step S10. On the other hand, the management device 10 may obtain information on the state from another device that determines the state of the vehicle.

[0128] In the present embodiment, two types of vehicle states, namely, a first state and a second state, are adopted. However, the number of vehicle states is not limited to two, and any number of states may be used as long as it is two or more.

[0129] ·In the present embodiment, the management device 10 sends a message to the electronic control device while receiving a signal requesting the continuation of operation from the started electronic control device. Furthermore, for the electronic control device, if the state in which no message sent to itself from the management device 10 is received continues, the operation is stopped and the device switches to a standby state. On the other hand, the management device 10 may also adopt a configuration in which, after starting the electronic control device, no message is sent even if a signal requesting the continuation of operation is received. In this case, the operating electronic control device continues the operation for a certain period of time whenever a signal requesting the continuation of operation is received from other electronic control devices included in the same cluster. Furthermore, if the state in which no signal requesting the continuation of operation is received from other electronic control devices included in the same cluster continues, the electronic control device stops the operation and switches to a standby state.

[0130] In the present embodiment, two clusters appear in each of the first group 51 and the second group 52. However, the number of clusters included in a group is not limited to two, and may be three or more.

[0131] In this embodiment, the second group 52 includes two clusters, the third cluster 63 and the fourth cluster 64. On the other hand, the second group 52 may have only one cluster, which is different from the first group 51. In this case, the management device 10 activates all the electronic control devices included in the second group 52 at the same time.

[0132] In this embodiment, when the state of the vehicle changes to another state, the management device 10 Figure 4 In the process of step S13, even if the electronic control device is in the operating state, the power supply is directly stopped. That is, in this embodiment, for the electronic control device for which the transfer process has not been completed, the management device 10 stops the power supply in the state in which the transfer process has not been completed. On the other hand, for the electronic control device for which the transfer process has not been completed, even if the state of the vehicle is transferred to another state, the management device 10 does not immediately put it into the dormant state, and stops the power supply after the transfer process is completed and transferred to the standby state.

[0133] Fig.11 as well as Fig.12 The following is a diagram showing the processing executed by the management device 10 in such a modification.

[0134] Fig.11 The processing shown replaces the processing in this embodiment Figure 4 The processing shown. Fig.11 In the process shown, step S40 is the same process as step S10, and step S41 is the same process as step S11.

[0135] In the process of step S42 , the processing device 11 determines whether or not there is an electronic control device in the on-vehicle network system 100 that is in a standby state.

[0136] In the process of step S42, when it is determined that there is an electronic control device in a standby state in the vehicle network system 100 (step S42: yes), the processing device 11 causes the process to proceed to step S43. In the process of step S43, the processing device 11 stops the power supply to the electronic control device. At this time, the electronic control device to which the processing device 11 stops supplying power is an electronic control device in a standby state that is included in the group corresponding to the state of the vehicle before the transfer and is not included in the group corresponding to the state of the vehicle after the transfer. The electronic control device to which the power supply is stopped changes from the standby state to the dormant state. The processing device 11 that has completed the process of step S43 causes the process to proceed to step S44.

[0137] In the process of step S42, when the processing device 11 determines that there is no electronic control device in the standby state in the vehicle network system 100 (step S42: No), the process proceeds to step S44. That is, when the processing device 11 determines that there is no electronic control device in the standby state in the vehicle network system 100, the process of step S43 is skipped.

[0138] There are two possible states where there is no electronic control device in the standby state in the vehicle network system 100. The first is a case where all the electronic control devices included in the group corresponding to the state before the vehicle state transition are in the operating state. The second is a case where there is no group that is the target of power supply in the state before the vehicle state transition.

[0139] Regarding the processing of the next step S44, Figure 4 The management device 10 that has executed the processing of step S44 uses Fig.11 The series of processing shown ends.

[0140] exist Fig.11 In the series of processing flow shown in Figure 4 The flow of the series of processes shown is different, and the power supply to the electronic control device that is in an operating state in the state of the vehicle before the transition is not stopped.

[0141] Fig.12 The processing shown in the figure shows the flow of a series of processing executed by the electronic control device in the operating state when the state of the vehicle is transferred to another state. Figure 4 as well as Fig.11 Likewise, this series of processing is executed when the management device 10 detects that the state of the vehicle has shifted to another state.

[0142] When the vehicle state is transferred to another state, the electronic control device in the running state stops implementing a specific function. Then, the electronic control device in the running state Figure 5 The transfer process is performed in step S30.

[0143] In the process of step S50, the processing device 11 determines whether the transfer process is completed for the electronic control device. As described above, the electronic control device sends a signal indicating that the transfer process is being executed until the transfer process is completed. Therefore, when the processing device 11 no longer receives a signal indicating that the transfer process is being executed from the electronic control device, it determines that the electronic control device has completed the transfer process.

[0144] In the process of step S50, if the processing device 11 determines that the electronic control device has not completed the transfer process (step S50: No), the processing of step S50 is repeated. In addition, in the process of step S50, if the processing device 11 determines that the electronic control device has completed the transfer process (step S50: Yes), the processing proceeds to step S51.

[0145] In the process of step S51 , the processing device 11 determines whether or not the electronic control device for which the transfer process has been completed is included in the group corresponding to the state of the vehicle after the transfer.

[0146] In the process of step S51, if the processing device 11 determines that the electronic control device that has completed the transfer process is not included in the group corresponding to the state of the vehicle after the transfer (step S51: No), the processing proceeds to step S52. In the process of step S52, the processing device 11 stops supplying power to the electronic control device that has completed the transfer process. That is, if the electronic control device that has completed the transfer process is not included in the group corresponding to the state of the vehicle after the transfer, the processing device 11 stops supplying power to the electronic control device. The processing device 11 that has stopped supplying power to the electronic control device Fig.12 A series of processing is completed.

[0147] In the process of step S51, when the processing device 11 determines that the electronic control device for which the transfer process has been completed is included in the group corresponding to the state of the vehicle after the transfer (step S51: Yes), Fig.12 That is, when the electronic control device that has completed the transfer process is included in the group corresponding to the state of the vehicle after the transfer, the processing device 11 continues to supply power to the electronic control device. Fig.12 A series of processing is completed.

[0148] When the state of the vehicle is transferred to another state, for the electronic control devices included in the group corresponding to the state of the vehicle before the transfer and not included in the group corresponding to the state of the vehicle after the transfer, before the transfer process performed when transferring from the operating state to the standby state is completed, the management device 10 stops the power supply after waiting for the transfer process to be completed and entering the standby state. In the case where the power supply to the electronic control device is stopped before the transfer process is completed, the data will not be stored in the memory, which will cause an undesirable situation such as the inability to flexibly use the data in the next control of the electronic control device. When the state of the vehicle is transferred to another state, for the electronic control device for which the transfer process has not been completed, the management device 10 stops the power supply after waiting for the transfer process to be completed. Thereby, the management device 10 can complete the transfer process and prevent the occurrence of undesirable conditions in the next control of the electronic control device.

[0149] In this embodiment, the first state is a state where the vehicle is being charged and parked, and the second state is a state where the vehicle is not being charged and parked. Fig.13 As shown, the first state may be a state where the vehicle is parked, and the second state may be a state where the vehicle is running. The functions provided by the vehicle are different in the parked state and the running state. Therefore, if the group of electronic control devices that supply power when the vehicle is parked and when it is running are distinguished as in the above configuration, the management device 10 can effectively supply power.

[0150] In the above-mentioned embodiment, the management device 10 includes a CPU, a RAM, and a ROM. The management device 10 executes software processing. However, this is merely an example. For example, the management device 10 may also include a dedicated hardware circuit (such as an ASIC, etc.) that processes at least a portion of the software processing executed in the above-mentioned embodiment. That is, each of the management devices 10 only needs to be configured as any one of the following (a) to (c). (a) The management device 10 includes a processing device that executes all processing according to a program and a program storage device such as a ROM that stores the program. That is, each of the management devices 10 includes a software execution device. (b) The management device 10 includes a processing device that executes a portion of processing according to a program and a program storage device. In addition, each of the management devices 10 includes a dedicated hardware circuit that executes the remaining processing. (c) The management device 10 includes a dedicated hardware circuit that executes all processing. Here, the software execution device and / or the dedicated hardware circuit may be multiple. That is, the above-mentioned processing can be executed by a processing circuit (processing circuitry) that includes at least one of a software execution device and a dedicated hardware circuit. There may be multiple software execution devices and dedicated hardware circuits included in the processing circuit. The program storage device, i.e., non-transitory computer-readable storage medium, includes all available media, i.e., storage devices, that can be accessed by general or special computers.

Claims

1. A management device for a network system of a vehicle including a plurality of electronic control devices forming a plurality of groups, wherein: Each of the plurality of groups includes at least one electronic control device among the plurality of electronic control devices, each of the first group and the second group is one of the plurality of groups, and the first group and the second group are different from each other. The management device is composed of: When the state of the vehicle is a first state, power is supplied to the one or more electronic control devices included in the first group, and power is not supplied to the one or more electronic control devices not included in the first group among the plurality of electronic control devices, When the state of the vehicle is a second state different from the first state, power is supplied to the one or more electronic control devices included in the second group, and power is not supplied to one or more electronic control devices not included in the second group among the plurality of electronic control devices.

2. The management device according to claim 1, wherein: The device is further configured to selectively switch a first electronic control device among the plurality of electronic control devices to a standby state and an operating state, When the first electronic control device is in the standby state, power is supplied to the first electronic control device and the first electronic control device stops operating. When the first electronic control device is in the operating state, power is supplied to the first electronic control device and the first electronic control device can execute a process.

3. The management device according to claim 2, wherein: The management device is connected to the plurality of electronic control devices so as to be communicable, The device is further configured to cause the first electronic control device to shift from the standby state to the operating state by communicating with the first electronic control device.

4. The management device according to claim 3, wherein: A combination of two or more electronic control devices among the one or more electronic control devices included in the first group is a first cluster. The management device is configured to, when the state of the vehicle is the first state and the vehicle provides the first function, cause the two or more electronic control devices included in the first cluster to be in the operating state through communication, and cause the one or more electronic control devices included in the first group but not included in the first cluster to be in the standby state, A combination of two or more electronic control devices among the one or more electronic control devices included in the first group is a second cluster, and the first cluster and the second cluster are different from each other. The management device is configured to, when the state of the vehicle is the first state and the vehicle provides a second function different from the first function, cause the two or more electronic control devices included in the second cluster to be in the operating state through communication, and cause the one or more electronic control devices included in the first group but not included in the second cluster to be in the standby state.

5. The management device according to claim 4, wherein: The first group is composed of a plurality of clusters corresponding to a plurality of functions that the vehicle may provide in the first state, the plurality of clusters including the first cluster and the second cluster. The two or more electronic control devices included in the first cluster need to be in the operating state in order for the vehicle to provide the first function. The two or more electronic control devices included in the second cluster need to be in the operating state in order for the vehicle to provide the second function.

6. The management device according to claim 4 or 5, wherein: The management device is configured to change the two or more electronic control devices included in the first cluster from the operating state to the standby state when the vehicle has completed providing the first function.

7. The management device according to any one of claims 4 to 6, wherein: When the state of the vehicle is transferred to another state, the supply of electric power to the electronic control devices included in the group corresponding to the state of the vehicle before the transfer and not included in the group corresponding to the state of the vehicle after the transfer among the plurality of electronic control devices is stopped.

8. The management device according to any one of claims 4 to 7, wherein: The structure is to perform the following processing: When the state of the vehicle is transferred to another state, and at least one of the plurality of electronic control devices is included in the group corresponding to the state of the vehicle before the transfer and is not included in the group corresponding to the state of the vehicle after the transfer, and before completing the transfer process performed when transferring from the operating state to the standby state, waiting for the at least one electronic control device to complete the transfer process and enter the standby state; and After the at least one electronic control device completes the transfer process and enters the standby state, the supply of electric power is stopped.

9. The management device according to any one of claims 4 to 8, wherein: A combination of two or more electronic control devices among the one or more electronic control devices included in the second group is a third cluster. The management device is configured to, when the state of the vehicle is the second state and the vehicle provides a third function, cause the two or more electronic control devices included in the third cluster to be in the operating state and cause the one or more electronic control devices included in the second group but not included in the third cluster to be in the standby state through communication, a combination of two or more electronic control devices among the one or more electronic control devices included in the second group is a fourth cluster, the third cluster and the fourth cluster are different from each other, The management device is configured to, when the state of the vehicle is the second state and the vehicle provides a fourth function different from the third function, cause the two or more electronic control devices included in the fourth cluster to be in the operating state through communication, and cause the one or more electronic control devices included in the second group but not included in the fourth cluster to be in the standby state.

10. The management device according to any one of claims 1 to 9, wherein: The first state is a state in which the vehicle is being charged and parked. The second state is a state in which the vehicle is not being charged and is parked.

11. The management device according to any one of claims 1 to 9, wherein: The first state is a state where the vehicle is parked. The second state is a state in which the vehicle is traveling.

12. A non-transitory computer-readable storage medium storing a control program, wherein: A network system of a vehicle includes a plurality of electronic control devices and a management device constituting a plurality of groups, each of the plurality of groups including at least one electronic control device among the plurality of electronic control devices, each of a first group and a second group being one of the plurality of groups, the first group and the second group being different from each other, and the control program being configured to cause the management device to perform the following processing when executed by the management device: When the state of the vehicle is a first state, supplying power to the one or more electronic control devices included in the first group, and not supplying power to the one or more electronic control devices not included in the first group among the plurality of electronic control devices; and When the state of the vehicle is a second state different from the first state, power is supplied to the one or more electronic control devices included in the second group, and power is not supplied to one or more electronic control devices not included in the second group among the plurality of electronic control devices.

13. The non-transitory computer-readable storage medium of claim 12, wherein: The control program is further configured to cause the management device to execute the following processing: selectively shifting a first electronic control device among the plurality of electronic control devices to a standby state and an operating state; When the first electronic control device is in the standby state, power is supplied to the first electronic control device and the first electronic control device stops operating. When the first electronic control device is in the operating state, power is supplied to the first electronic control device and the first electronic control device can execute a process.

14. The non-transitory computer-readable storage medium of claim 13, wherein: The management device is connected to the plurality of electronic control devices so as to be communicable, The control program is further configured to cause the management device to execute a process of causing the first electronic control device to shift from the standby state to the operating state by communicating with the first electronic control device.

15. The non-transitory computer-readable storage medium of claim 14, wherein: A combination of two or more electronic control devices among the one or more electronic control devices included in the first group is a first cluster. The control program is configured to cause the management device to execute the following processing: when the state of the vehicle is the first state and the vehicle provides the first function, the two or more electronic control devices included in the first cluster are placed in the operating state through communication, and the one or more electronic control devices included in the first group but not included in the first cluster are placed in the standby state, A combination of two or more electronic control devices among the one or more electronic control devices included in the first group is a second cluster, and the first cluster and the second cluster are different from each other. The control program is configured to cause the management device to perform the following processing: when the state of the vehicle is the first state and the vehicle provides a second function different from the first function, the two or more electronic control devices included in the second cluster are put into the operating state through communication, and the one or more electronic control devices included in the first group but not included in the second cluster are put into the standby state.

16. A control method for controlling a network system of a vehicle having a plurality of electronic control devices forming a plurality of groups, wherein: Each of the plurality of groups includes at least one electronic control device among the plurality of electronic control devices, each of the first group and the second group is one of the plurality of groups, and the first group and the second group are different from each other. The control method comprises: When the state of the vehicle is a first state, the management device of the network system supplies power to the one or more electronic control devices included in the first group, and does not supply power to one or more electronic control devices among the plurality of electronic control devices that are not included in the first group; and When the state of the vehicle is a second state different from the first state, the management device supplies power to the one or more electronic control devices included in the second group, and does not supply power to one or more electronic control devices among the plurality of electronic control devices that are not included in the second group.

17. The control method according to claim 16, wherein: The control method further includes: the management device selectively shifting a first electronic control device among the plurality of electronic control devices to a standby state and an operating state, When the first electronic control device is in the standby state, power is supplied to the first electronic control device and the first electronic control device stops operating. When the first electronic control device is in the operating state, power is supplied to the first electronic control device and the first electronic control device can execute a process.

18. The control method according to claim 17, wherein: The management device is connected to the plurality of electronic control devices so as to be communicable, The control method further includes: the management device causing the first electronic control device to shift from the standby state to the operating state by communicating with the first electronic control device.

19. The control method according to claim 18, wherein: A combination of two or more electronic control devices among the one or more electronic control devices included in the first group is a first cluster. The control method includes: when the state of the vehicle is the first state and the vehicle provides the first function, the management device causes the two or more electronic control devices included in the first cluster to be in the operating state through communication, and causes the one or more electronic control devices included in the first group but not included in the first cluster to be in the standby state, A combination of two or more electronic control devices among the one or more electronic control devices included in the first group is a second cluster, and the first cluster and the second cluster are different from each other. The control method includes: when the state of the vehicle is the first state and the vehicle provides a second function different from the first function, the management device causes the two or more electronic control devices included in the second cluster to be in the operating state through communication, and causes the one or more electronic control devices included in the first group but not included in the second cluster to be in the standby state.

Images