Assistance control system

Patent metadata

Field	Value
Publication number	US-2021396531-A1
Application number	US-202117462688-A
Country	US
Kind code	A1
Filing date	Aug 31, 2021
Priority date	Oct 12, 2018
Publication date	Dec 23, 2021
Grant date	—

Abstract

An assistance control system performs assistance control for causing a moving object to move to a destination based on map information. The assistance control system includes an electronic control unit. The electronic control unit is configured to generate or update the map information based on input from a sensor mounted on the moving object, acquire a plurality of route candidates to the destination, evaluate certainty of the map information for each location or each section, and calculate a map information evaluation value, evaluate accuracy of the assistance control in the acquired route candidates based on the calculated map information evaluation value, and present a route candidate having the highest priority among the route candidates to an occupant of the moving object, or control the moving object along the route candidate having the highest priority.

First claim

What is claimed is:

1 . An assistance control system, which includes a map database storing map information, that performs assistance control for causing a moving object to move to a destination based on the map information, the assistance control system comprising:
an electronic control unit programmed to: generate or update the map information based on input from a sensor mounted on the moving object, acquire a plurality of route candidates to the destination, evaluate the route candidates based on a distance of a section included in an unsuitable section of the route candidates, wherein the unsuitable section is the section where the assistance control is not suitable to be performed, set a priority of a route candidate, which is evaluated lower among the route candidates, to be higher than priorities of other route candidates, and present a route candidate having the highest priority among the route candidates to an occupant of the moving object, or control the moving object along the route candidate having the highest priority.

2 . The assistance control system according to claim 1 , wherein the electronic control unit is programmed to set the priority of a route candidate having the longer unsuitable section distance to be higher in priority compared with the priority of a route candidate having the shorter unsuitable section distance among the route candidates.

3 . The assistance control system according to claim 1 , wherein the electronic control unit is programmed to set the priority of a route candidate based on a weighted distance of the unsuitable section.

4 . The assistance control system according to claim 3 , wherein the electronic control unit is programmed to weight the distance more greatly in a case where data needed to reliably perform predetermined driving assistance is less easily collected in the section set as the unsuitable section in the route candidate compared to a case where data needed to reliably perform predetermined driving assistance is more easily collected.

Assignees

• Toyota Motor Co Ltd
• Toyota Motor Co Ltd

Inventors

• Sakaguchi Eiji
• Takagi Yasuhiro
• Kamata Nobuhide
• Kawanai Taichi

Classifications

• G01C21/3896

  Transmission of map data from central databases · CPC title

• G01C21/3848

  Data obtained from both position sensors and additional sensors · CPC title

• G08G1/0969

  having a display in the form of a map · CPC title

• G01C21/3461

  Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types or segments such as motorways, toll roads or ferries · CPC title

• G01C21/367

  Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker · CPC title