公开(公告)号：US20240060782A1

公开(公告)日：2024-02-22

申请号：US18257971

申请日：2021-09-02

Applicant: HITACHI ASTEMO, LTD.

Inventor： Tomoaki WATAHIKI ,  Shinichi AMAYA

IPC: G01C21/34 ,  G01C21/32

CPC classification number: G01C21/3446 ,  G01C21/32

Abstract: The present disclosure provides a route conversion apparatus which enables, in a case where a first route based on first map data is converted into a second route based on second map data in a range which is narrower than a section of an electronic map, an error of the converted second route to be detected, and conversion into a correct second route to be performed. The route conversion apparatus 100 includes a route conversion unit 122a that generates a second route RT2 based on location reference information LRI of a first route RT1, a storage unit 121 that stores a route verification model RVM, and a route verification unit 122b that inputs the second map data MD2, the location reference information LRI, and the second route RT2 to the route verification model RVM to verify whether the second route RT2 is correct or incorrect.

公开(公告)号：US20230243657A1

公开(公告)日：2023-08-03

申请号：US17927096

申请日：2021-02-01

Applicant: Hitachi Astemo, Ltd.

Inventor： Masahiro KIYOHARA ,  Takeshi OGATA ,  Hiroki OTA ,  Shinichi AMAYA

IPC: G01C21/30 ,  G08G1/0968

CPC classification number: G01C21/30 ,  G08G1/0968

Abstract: An object of the present invention is to provide a vehicle control device and a host vehicle position estimation method capable of appropriately learning a correction amount of a host vehicle position estimated based on a global navigation satellite system (GNSS) according to an environmental change. Therefore, a host vehicle position estimation unit of the vehicle control device according to the present invention includes: an absolute position estimation unit that estimates a first vehicle position based on absolute position information acquired from a GNSS; a relative position estimation unit that estimates a second vehicle position based on relative position information acquired from an outside of the host vehicle; a traveling state determination unit that determines a change of a traveling state of the host vehicle based on vehicle information or satellite information; a difference computation unit that computes an amount of a difference between the first vehicle position and the second vehicle position in a state where time synchronization is performed; a learning unit that accumulates the amount of the difference as time-series data for each traveling state and learns a correction amount of the first vehicle position for each traveling state based on the accumulated time-series data; and a position correction unit that corrects the first vehicle position based on the correction amount calculated by the learning unit.