Vehicle system

Patent metadata

Field	Value
Publication number	US-2022221284-A1
Application number	US-202217571025-A
Country	US
Kind code	A1
Filing date	Jan 7, 2022
Priority date	Jan 12, 2021
Publication date	Jul 14, 2022
Grant date	—

Abstract

A vehicle system includes: a map processing unit that creates local map data based on high accuracy map data and a position of an own vehicle; an autonomous driving control unit that creates a travel plan based on the local map data and controls traveling of the own vehicle according to the travel plan; and a map guidance unit that, based on a set destination, sets a route to the destination. The map processing unit creates multiple pieces of transmission data by dividing the local map data so as to correspond to regions on a map, selects pieces of transmission data corresponding to regions located within a prescribed distance from the own vehicle and including the route to the destination as first transmission data, and transmits the first transmission data to the autonomous driving control unit with a higher priority than other pieces of transmission data.

First claim

1 . A vehicle system comprising:
a map processing unit that creates local map data based on high accuracy map data and a position of an own vehicle by extracting data of regions near the own vehicle from the high accuracy map data; an autonomous driving control unit that receives the local map data from the map processing unit, creates a travel plan for autonomous traveling of the own vehicle based on the local map data, and controls traveling of the own vehicle according to the travel plan; and a map guidance unit that, based on a set destination, sets a route to the destination, wherein the map processing unit creates multiple pieces of transmission data by dividing the created local map data so as to correspond to regions on a map, selects, from the multiple pieces of transmission data, pieces of transmission data corresponding to regions having a distance from the own vehicle less than or equal to a prescribed distance and including the route to the destination as first transmission data, and transmits the first transmission data to the autonomous driving control unit with a higher priority than other pieces of transmission data.

2 . The vehicle system according to claim 1 , wherein the map processing unit transmits the pieces of transmission data selected as the first transmission data to the autonomous driving control unit sequentially starting from a piece of transmission data corresponding to a region nearest to the own vehicle.

3 . The vehicle system according to claim 1 , wherein the map processing unit selects, from the multiple pieces of transmission data, pieces of transmission data corresponding to regions having a distance from the own vehicle less than or equal to the prescribed distance and including a branch route that branches off from the route to the destination as second transmission data, and transmits the second transmission data to the autonomous driving control unit with a higher priority than other transmission data excluding the first transmission data.

4 . The vehicle system according to claim 3 , wherein the map processing unit transmits the pieces of transmission data selected as the second transmission data to the autonomous driving control unit sequentially starting from a piece of transmission data corresponding to a region nearest to a branch point of the branch route from the route to the destination.

5 . The vehicle system according to claim 3 , wherein the map processing unit selects, from the multiple pieces of transmission data, pieces of transmission data corresponding to regions having a distance from the own vehicle less than or equal to the prescribed distance and including a merging route that merges with the route to the destination as third transmission data, and transmits the third transmission data to the autonomous driving control unit with a higher priority than other transmission data excluding the first transmission data and the second transmission data.

6 . The vehicle system according to claim 5 , wherein the map processing unit transmits the pieces of transmission data selected as the third transmission data to the autonomous driving control unit sequentially starting from a piece of transmission data corresponding to a region nearest to a merge point of the merging route with the route to the destination.

Assignees

• Honda Motor Co Ltd

Inventors

• Chikamori Hidetoshi
• Nakamura Kazumasa
• Konishi Hitoshi
• Harayama Takuji
• Masakawa Tomoaki
• Aso naofumi
• Matsuzawa Ryo
• Wang Zhaoqi

Classifications

• G01C21/32

  Structuring or formatting of map data · CPC title

• G01C21/3492

  employing speed data or traffic data, e.g. real-time or historical (traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968) · CPC title

• B60W60/001 Primary

  Planning or execution of driving tasks · CPC title

• G01C21/3889 Primary

  Transmission of selected map data, e.g. depending on route · CPC title

• B60W2556/50

  of positioning data, e.g. GPS [Global Positioning System] data · CPC title