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公开(公告)号：US20220057475A1
公开(公告)日：2022-02-24
申请号：US17453978
申请日：2021-11-08
Applicant: DENSO CORPORATION
Inventor： Kazuhiro NAKASHIMA , Kenichirou SANJI
Abstract: A distance data between the portable device and the vehicle-side transmission and reception device is acquired. A movement speed of the portable device is calculated based on a change between a current distance data and a previous distance data. A position estimation distance for estimating the position of the portable device with respect to the vehicle is updated when the movement speed is less than a first speed. The position estimation distance is not updated when the movement speed is equal to or larger than the first speed. The position of the portable device is estimated according to the position estimation distance.
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公开(公告)号：US20210358236A1
公开(公告)日：2021-11-18
申请号：US17387443
申请日：2021-07-28
Applicant: DENSO CORPORATION
Inventor： Youhei SEKIYA , Kenichiro SANJI , Kazuhiro NAKASHIMA , Takashi SHINODA
IPC: G07C5/08 , G07C5/00 , H04B17/318 , H04W4/48
Abstract: A vehicular position estimation system estimates a portable terminal position with respect to a vehicle. Each of three or more in-vehicle communication devices is attached at a different position of the vehicle. Each of the multiple in-vehicle communication devices generates distance information indicating a distance from the in-vehicle communication device to the portable terminal. The vehicular position estimation system includes a position coordinate calculation portion that calculates a position coordinate of the portable terminal, and an area inside-outside determination portion that determines whether the portable terminal is inside the system actuation area.
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公开(公告)号：US20210026347A1
公开(公告)日：2021-01-28
申请号：US17067937
申请日：2020-10-12
Applicant: DENSO CORPORATION
Inventor： Kazuhiro NAKASHIMA
Abstract: A vehicle remote operation system includes: a communication device that performs wireless communication with a mobile device; a position determination portion that determines whether the mobile device exists in an activation area; a remote operation acceptance portion that accepts a remote operation as a user instruction operation to move the vehicle; a control execution portion that performs control corresponding to a content of the remote operation; and a notification processor that notifies a user that a position of the mobile device changes from an inside of the activation area to an outside of the activation area.
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公开(公告)号：US20210356555A1
公开(公告)日：2021-11-18
申请号：US17387227
申请日：2021-07-28
Applicant: DENSO CORPORATION
Inventor： Kenichiro SANJI , Youhei SEKIYA , Takashi SHINODA , Kazuhiro NAKASHIMA
Abstract: A vehicular position estimation system determines a portable terminal position by causing multiple in-vehicle communication devices placed at different positions on a vehicle to wirelessly communicate with a potable terminal, and includes: a distance index value acquisition portion that acquires a distance index value indicating a distance between the multiple in-vehicle communication devices; a normal range storage portion that stores data indicating a normal range of the distance index value; and a communication device diagnosis portion that determines whether the in-vehicle communication device is normal. When the distance index value between a diagnosis target device and at least one different device is in a normal range, the communication device diagnosis portion determines that a failure does not occur in the diagnosis target device.
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