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31.发明申请公开(公告)号：US20210028925A1
公开(公告)日：2021-01-28
申请号：US17036470
申请日：2020-09-29
Inventor： Yoshihiro UJIIE , Jun ANZAI , Yoshihiko KITAMURA , Masato TANABE , Takeshi KISHIKAWA
IPC: H04L9/08 , H04L29/06 , B60R16/023
Abstract: A key management method serves as an electronic control unit (ECU) in an onboard network system having a plurality of ECUs that perform communication by frames via a network. The method includes storing a shared key and executing encryption processing based on the shared key. The method further includes executing inspection of a security state of the shared key stored in a case where a vehicle is in at least one of the following particular states: the vehicle is not driving and is an accessory-on state; a fuel cap of the vehicle is open, and the vehicle is not driving and is fueling; the vehicle is parked, which is indicated by the gearshift; the vehicle is in a stopped state before driving, which is indicated by the gearshift; and a charging plug is connected to the vehicle, and the vehicle is electrically charging.
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32.发明申请公开(公告)号：US20200007567A1
公开(公告)日：2020-01-02
申请号：US16566269
申请日：2019-09-10
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Tomoyuki HAGA , Manabu MAEDA , Yuji UNAGAMI , Takeshi KISHIKAWA
Abstract: A method for use in a network communication system including a plurality of electronic controllers that communicate with each other via a bus in accordance with a Controller Area Network (CAN) protocol determines whether or not content of a predetermined field in a frame which has started to be transmitted meets a predetermined condition indicating fraud. In a case where the content of the predetermined field meets the predetermined condition, an error frame is transmitted before an end of the frame is transmitted. A number of times the error frame is transmitted is recorded for each identifier (ID) represented by content of an ID field included in a plurality of frames which has been transmitted. A malicious electronic controller is determined in accordance with the number of times recorded for each ID.
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公开(公告)号：US20190294783A1
公开(公告)日：2019-09-26
申请号：US16431002
申请日：2019-06-04
Inventor： Yoshihiro UJIIE , Hideki Matsushima , Tomoyuki Haga , Yuji Unagami , Takeshi Kishikawa
Abstract: A method for a fraud detecting controller connected to networks for communication by a plurality of controllers, includes, storing fraud detection rules, determining whether a message transmitted on the network connected to the fraud detecting controller conforms to the rules, receiving data including updated fraud detection rules and network type information indicating one network type to which the updated fraud detection rules are to be applied; and determining whether a vehicle having an on-board network is running, the on-board network including the plurality of controllers. When the vehicle is running, additionally determining whether the network type information indicates a drive network which is connected to a controller related to vehicle travel, when the network type information indicates the drive network, not updating to the updated fraud detection rules, and when the network type information does not indicate the drive network, updating to the updated fraud detection rules.
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公开(公告)号：US20180126954A1
公开(公告)日：2018-05-10
申请号：US15868663
申请日：2018-01-11
Inventor： Tomoyuki HAGA , Hideki MATSUSHIMA , Manabu MAEDA , Yuji UNAGAMI , Yoshihiro UJIIE , Takeshi KISHIKAWA
CPC classification number: B60R25/307 , B60R2325/108 , H04L9/0891 , H04L9/3242 , H04L67/12 , H04L2209/84
Abstract: An anti-fraud method for use in an in-vehicle network system including a plurality of electronic control units that exchange, in an in-vehicle network, data frames, each having added thereto a message authentication code (MAC). The method includes generating a first MAC by using a MAC key and a value of a counter that counts a number of times a data frame having added thereto a MAC is transmitted to the in-vehicle network. The method also includes performing verification that the data frame received has added thereto the generated first MAC and incrementing a number of error occurrences when the verification has failed for the data frame, the data frame including a predetermined ID. When the number of error occurrences exceeds a predetermined threshold, a process associated in advance with the predetermined ID is executed.
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公开(公告)号：US20240177603A1
公开(公告)日：2024-05-30
申请号：US18428888
申请日：2024-01-31
Inventor： Yoshihiro UJIIE
IPC: G08G1/0968 , G08G1/01
CPC classification number: G08G1/0968 , G08G1/0145
Abstract: A first vehicle is an unmanned ground vehicle and holds a first digital certificate according to at least one of a vehicle purpose of the first vehicle and a service of the first vehicle, and a second vehicle holds a second digital certificate according to at least one of a vehicle purpose of the second vehicle and a service of the second vehicle. A travel determination method includes obtaining the first digital certificate and the second digital certificate, and determining whether to prioritize travel of the first vehicle or the second vehicle, based on the first digital certificate and the second digital certificate obtained, when each of the first vehicle and the second vehicle travels on a corresponding transport route.
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Patent Agency Ranking
公开(公告)号：US20230353656A1
公开(公告)日：2023-11-02
申请号：US18220072
申请日：2023-07-10
Inventor： Takeshi KISHIKAWA , Yoshihiro UJIIE , Ryo HIRANO
IPC: H04L67/562 , H04L67/51 , H04L67/12
CPC classification number: H04L67/562 , H04L67/51 , H04L67/12
Abstract: A service broker that is connected to each of a server unit and a client unit in a service offer system for offering a service from the server unit to the client unit by way of a service oriented communication includes: a communication controller that receives a frame for use in offer of the service, from the server unit or the client unit; and a service manager that determines whether a combination of a service identifier included in the frame received by the communication controller, an identifier indicating one of a transmission source and a destination of the frame, and a type of the frame is appropriate, and provides output of a result of the determination.
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37.发明申请公开(公告)号：US20230089171A1
公开(公告)日：2023-03-23
申请号：US17991357
申请日：2022-11-21
Inventor： Tomoyuki HAGA , Hideki MATSUSHIMA , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: G08G1/00 , G08G1/16 , H04W4/46 , H04W12/12 , B60R16/023
Abstract: An anomaly handling method using a device installed outside of a vehicle is disclosed. The method includes receiving, from the vehicle, an anomaly detection notification, which includes level information indicating a level affecting safety, and a location of the vehicle. The method also includes obtaining a location of another vehicle and determining whether a distance between the location of the vehicle and the location of the other vehicle is within a predetermined range. When the distance is within the predetermined range and is shorter than a first predetermined distance, not changing the level information and transmitting the received anomaly detection information to the other vehicle. When the distance is within the predetermined range and is longer than or equal to the first predetermined distance, changing to decrement a level indicated by the level information, and transmitting changed anomaly detection information to the other vehicle.
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公开(公告)号：US20220286473A1
公开(公告)日：2022-09-08
申请号：US17825570
申请日：2022-05-26
Inventor： Yoshihiro UJIIE
Abstract: An anomaly detection system is a system in an in-vehicle network system that includes one or more ECUs mounted on a vehicle and in which the vehicle and a server are capable of communicating with each other through a plurality of communication routes. The anomaly detection system includes: an anomaly detector that detects an anomaly in the vehicle; a determiner that determines, out of the plurality of communication routes, a communication route for transmitting anomaly detection result information indicating a result of detection of the anomaly in the vehicle to the server, according to occurrence of a specific anomaly; and an anomaly detection result transmitter that transmits the anomaly detection result information to the server using the communication route determined.
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公开(公告)号：US20210349981A1
公开(公告)日：2021-11-11
申请号：US17381397
申请日：2021-07-21
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Makoto FUJIWARA
Abstract: An authentication method is used by an automated driving system that includes a vehicle and an external device, the external device communicating with the vehicle to cause the vehicle to implement automated driving. The vehicle holds a first certificate that certifies validity of the vehicle. The external device holds a second certificate that certifies validity of the external device. The authentication method includes: validating a third certificate that certifies validity of a combination of the vehicle and the external device, in accordance with a result of device authentication performed between the vehicle and the external device by reference to the first certificate and the second certificate.
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公开(公告)号：US20210349977A1
公开(公告)日：2021-11-11
申请号：US17380209
申请日：2021-07-20
Inventor： Takeshi KISHIKAWA , Ryo HIRANO , Yoshihiro UJIIE , Tomoyuki HAGA
Abstract: A vehicle surveillance device for an in-vehicle network system that includes one or more electronic control units includes: a frame transmitter and receiver that receives a frame flowing over the in-vehicle network system; and a score calculator that detects a suspicious behavior different from a normal driving behavior based on the frame received by the frame transmitter and receiver and vehicle data including information on one or more frames received by the frame transmitter and receiver prior to receiving the frame, and calculates, based on a detection result, a score indicating a likelihood that reverse engineering has been performed on a vehicle provided with the in-vehicle network system.
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