公开(公告)号：US20240022992A1

公开(公告)日：2024-01-18

申请号：US18474508

申请日：2023-09-26

Applicant: DENSO CORPORATION

Inventor： Masayuki HOSHINO ,  Keisuke IKUSHIMA

IPC: H04W40/22

CPC classification number: H04W40/22

Abstract: Each of a first communication device and a second communication device is capable of performing vehicle-to-vehicle communication and cellular communication. The first communication device issues a proxy request to the second communication device for communication with an application server. When the second communication device receives proxy communication, the second communication device acquires an unused port number from the first communication device, notifies a relay server of the port number as the number of the port for proxy communication, and then performs the proxy communication.

公开(公告)号：US20180180447A1

公开(公告)日：2018-06-28

申请号：US15754658

申请日：2016-08-22

Applicant: DENSO CORPORATION

Inventor： Keisuke IKUSHIMA ,  Toshiro ISHIHARA

IPC: G01D3/08 ,  G01R31/28 ,  H02H3/08

CPC classification number: G01D3/08 ,  G01R31/026 ,  G01R31/2829 ,  G01R31/382 ,  H02H3/085

Abstract: A disconnection detector includes: a plurality of energizing circuits that supply a constant current from a direct current power supply to a plurality of loads through resistor elements, respectively, the resistor elements each having a predetermined resistance value; a plurality of voltage detectors that are respectively arranged at the plurality of energizing circuits, and that are respectively configured to detect a voltage of a corresponding one of the resistor elements at a load side; and a control circuit that determines, for each of the plurality of energizing circuits, a disconnected state of an energizing path to a corresponding one of the plurality of loads, based on voltages respectively detected by the plurality of voltage detectors.

公开(公告)号：US20250071187A1

公开(公告)日：2025-02-27

申请号：US18943313

申请日：2024-11-11

Applicant: DENSO CORPORATION

Inventor： Keisuke IKUSHIMA

IPC: H04L67/55 ,  G06F1/329 ,  H04L67/12

Abstract: An in-vehicle communication device transmits, to an in-vehicle electronic control unit, push data in response to receiving the push data from a push server. The push server transmits the push data in response to reception of a transmission request of the push data from an application server. The in-vehicle communication device includes a notification monitoring unit monitoring notification of startup request transmitted from the push server using a first communication method, and a reception control unit receiving the push data transmitted from the push server using a second communication method. The first communication method requires a lower standby power consumption than the second communication method, and the second communication method allows a longer data length of push data than the first communication method.

公开(公告)号：US20240038003A1

公开(公告)日：2024-02-01

申请号：US18483508

申请日：2023-10-09

Applicant: DENSO CORPORATION

Inventor： Toshiro ISHIHARA ,  Keisuke IKUSHIMA

IPC: G07C5/08 ,  B60R16/023 ,  B60R16/033 ,  B60Q1/52

CPC classification number: G07C5/0825 ,  B60R16/023 ,  B60R16/033 ,  B60Q1/52

Abstract: An in-vehicle device having a function of detecting an anomaly in an in-vehicle system and an interface device having an LED for notifying an occupant of a vehicle of an anomaly state are connected via a communication path for transmitting an alternating current signal. The cathode of the LED is connected to the vehicle body ground, and the anode is connected to the communication line of the communication path via the inductor. When the in-vehicle device detects an anomaly in the in-vehicle system, the in-vehicle device notifies the occupant of the vehicle of the anomaly by applying a direct current drive signal to the communication line to drive the LED.

公开(公告)号：US20230401123A1

公开(公告)日：2023-12-14

申请号：US18457585

申请日：2023-08-29

Applicant: DENSO CORPORATION

Inventor： Keisuke IKUSHIMA

IPC: G06F11/07 ,  G07C5/00 ,  G07C5/08

CPC classification number: G06F11/079 ,  G06F11/0739 ,  G07C5/008 ,  G07C5/085

Abstract: By a vehicle device for a vehicle, a server, or a communication management method, a log of an exchange is centrally managed, and a failure is detected in a communication establishment process, and a log estimated to be related to the failure is output when the monitoring unit has detected the failure.

公开(公告)号：US20240031905A1

公开(公告)日：2024-01-25

申请号：US18479664

申请日：2023-10-02

Applicant: DENSO CORPORATION

Inventor： Keisuke IKUSHIMA

IPC: H04W36/32 ,  H04W36/00

CPC classification number: H04W36/324 ,  H04W36/0022

Abstract: A technique for data communication between an in-vehicle device and an information processor outside a vehicle includes detecting that the vehicle is be parked, determining whether the data communication using short-range communication is available at a parked point, receiving a communication stat request for start of the data communication from the in-vehicle device or the information processor, stopping a short-range communication unit based on detection of the vehicle being parked, and restarting the short-range communication unit based on receiving the communication start request in a state where the vehicle is parked and the data communication using short-range communication is available.

公开(公告)号：US20230300226A1

公开(公告)日：2023-09-21

申请号：US18325282

申请日：2023-05-30

Applicant: DENSO CORPORATION

Inventor： Masayuki HOSHINO ,  Keisuke IKUSHIMA

IPC: H04L69/22 ,  H04L69/16 ,  H04L61/2514

CPC classification number: H04L69/22 ,  H04L69/16 ,  H04L61/2514

Abstract: A communication control device: transmits, from an application to a wireless communication device used in a vehicle, a start request of data communication between the application and an external device; acquire a communication condition related to the data communication between the application and the external device from the application; determines whether the data communication satisfying the communication condition is possible; sets a communication path from the application to the external device and sets a source port number to the request source when the data communication is determined to be possible; notifies the application of path information including the source port number; and performs the data communication between the application and the external device using the source port number.

公开(公告)号：US20230300213A1

公开(公告)日：2023-09-21

申请号：US18325426

申请日：2023-05-30

Applicant: DENSO CORPORATION

Inventor： Keisuke IKUSHIMA

IPC: H04L67/55 ,  H04W4/40 ,  G07C5/00 ,  B60W50/14

CPC classification number: H04L67/55 ,  H04W4/40 ,  G07C5/008 ,  B60W50/14

Abstract: By an information transmission method or a communication device, push information is received from a transmission source positioned in the outside, electronic control unit information related to the in-vehicle electronic control unit to be a notification destination of the push information is grasped, and notification of the push information according to the grasped electronic control unit information is performed. By the information transmission method, a wireless communication device is specified, and the push information is transmitted to the wireless communication device.

公开(公告)号：US20250055922A1

公开(公告)日：2025-02-13

申请号：US18929015

申请日：2024-10-28

Applicant: DENSO CORPORATION

Inventor： Keisuke IKUSHIMA

IPC: H04L67/142 ,  H04L67/12 ,  H04L67/55

Abstract: When a push server receives a transmission request of push data from an application server, the push server transmits the push data to an in-vehicle communication device, and the in-vehicle communication device transmits the received push data to an in-vehicle ECU. The in-vehicle communication device includes a reset execution determination unit determining whether a reset of the in-vehicle communication device is executable and a reset state information notification unit notifying, in response to determining that the reset of the in-vehicle communication device is executable, the push server of reset state information indicating that the in-vehicle communication device is in a reset state, in association with device identification information of the in-vehicle communication device before starting the reset of the in-vehicle communication device. The device identification information enables identifying of the in-vehicle communication device.

公开(公告)号：US20240047768A1

公开(公告)日：2024-02-08

申请号：US18485428

申请日：2023-10-12

Applicant: DENSO CORPORATION

Inventor： Toshiro ISHIHARA ,  Keisuke IKUSHIMA

IPC: H01M10/42 ,  B60R16/033 ,  H01M10/48 ,  H01M10/44

CPC classification number: H01M10/425 ,  B60R16/033 ,  H01M10/48 ,  H01M10/44 ,  H01M2220/20 ,  H01M2010/4278

Abstract: A control method of vehicle power source includes: acquiring a predetermined power amount measured by a power amount measurement unit of the vehicle; monitoring a decrease in battery remaining power amount based on the predetermined power amount in response to turning off of a main switch of the vehicle; calculating a standby period based on a decreasing tendency of the battery remaining power amount; continuing a power supply state from a power source unit of the vehicle to a wireless communication unit of the vehicle in response to turning off of the main switch; and terminating the power supply state in response to elapse of the standby period.