Alerting apparatus

Patent metadata

Field	Value
Publication number	US-9514648-B2
Application number	US-201514939524-A
Country	US
Kind code	B2
Filing date	Nov 12, 2015
Priority date	Nov 14, 2014
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

An alerting apparatus issues an alert regarding a moving obstacle to a driver of a host vehicle when the host vehicle enters an intersection of a crossroad that is connected to a traveling road on which the host vehicle is traveling, and the traveling road, in a left-hand traffic jurisdiction. This alerting apparatus includes an ECU. The ECU is configured to issue the alert regarding the moving obstacle when it is determined that a path of the moving obstacle intersects with an intersect determination range, and set the intersect determination range to be shorter in length in a front-rear direction of the host vehicle when the traveling direction of the host vehicle is a left turn than when the traveling direction of the host vehicle is a right turn.

First claim

What is claimed is:

1. An alerting apparatus that issues an alert regarding a moving obstacle to a driver of a host vehicle, when the host vehicle enters an intersection of a crossroad that is connected to a traveling road on which the host vehicle is traveling, and the traveling road, in a left-hand traffic jurisdiction, the alerting apparatus comprising:
an ECU configured to
determine a traveling direction of the host vehicle entering the intersection;
set an intersect determination range that extends out in front of the host vehicle from the host vehicle, based on a result of the determination;
obtain position information of the moving obstacle;
estimate a path of the moving obstacle, based on the position information of the moving obstacle;
determine whether the path of the moving obstacle intersects with the intersect determination range;
issue the alert regarding the moving obstacle to the driver when it is determined that the path of the moving obstacle intersects with the intersect determination range; and
set the intersect determination range to be shorter in length in a front-rear direction of the host vehicle when the traveling direction of the host vehicle is a left turn than when the traveling direction of the host vehicle is a right turn.

2. The alerting apparatus according to claim 1 , wherein
the ECU is configured to set the intersect determination range to have a length in the front-rear direction that is equal to or less than one-half of a road width of the crossroad when the traveling direction of the host vehicle is a left turn.

3. An alerting apparatus that issues an alert regarding a moving obstacle to a driver of a host vehicle, when the host vehicle enters an intersection of a crossroad that is connected to a traveling road on which the host vehicle is traveling, and the traveling road, in a right-hand traffic jurisdiction, the alerting apparatus comprising:
an ECU configured to
determine a traveling direction of the host vehicle entering the intersection;
set an intersect determination range that extends out in front of the host vehicle from the host vehicle, based on a result of the determination;
obtain position information of the moving obstacle;
estimate a path of the moving obstacle, based on the position information of the moving obstacle;
determine whether the path of the moving obstacle intersects with the intersect determination range;
issue the alert regarding the moving obstacle to the driver when it is determined that the path of the moving obstacle intersects with the intersect determination range; and
set the intersect determination range shorter in length in a front-rear direction of the host vehicle when the traveling direction of the host vehicle is a right turn than when the traveling direction of the host vehicle is a left turn.

4. The alerting apparatus according to claim 3 , wherein
the ECU is configured to set the intersect determination range to have a length in the front-rear direction that is equal to or less than one-half of a road width of the crossroad when the traveling direction of the host vehicle is a right turn.

5. The alerting apparatus according to claim 1 , wherein
the ECU is configured to
set a timing of the alert regarding the moving obstacle to an earlier timing when the moving obstacle is positioned on a left side of the host vehicle than when the moving obstacle is positioned on a right side of the host vehicle, when the traveling direction of the host vehicle is a left turn; and
set the timing of the alert regarding the moving obstacle to an earlier timing when the moving obstacle is positioned on the right side of the host vehicle than when the moving obstacle is positioned on the left side of the host vehicle, when the traveling direction of the host vehicle is a right turn.

6. An alerting apparatus that issues an alert regarding a moving obstacle to a driver of a host vehicle, when the host vehicle enters an intersection of a crossroad that is connected to a traveling road on which the host vehicle is traveling, and the traveling road, the alerting apparatus comprising:
an ECU configured to
determine a traveling direction of the host vehicle entering the intersection;
obtain position information of the moving obstacle;
estimate a path of the moving obstacle, based on the position information of the moving obstacle;
determine whether the path of the moving obstacle intersects with a preset intersect determination range that extends out in front of the host vehicle from the host vehicle;
issue the alert regarding the moving obstacle to the driver when it is determined that the path of the moving obstacle intersects with the intersect determination range;
set a timing of the alert regarding the moving obstacle to an earlier timing when the moving obstacle is positioned on a left side of the host vehicle than when the moving obstacle is positioned on a right side of the host vehicle, when the traveling direction of the host vehicle is a left turn; and
set the timing of the alert regarding the moving obstacle to an earlier timing when the moving obstacle is positioned on the right side of the host vehicle than when the moving obstacle is positioned on the left side of the host vehicle, when the traveling direction of the host vehicle is a right turn.

Assignees

• Toyota Motor Co Ltd

Inventors

• Kawamata Shinya
• HANITA Kiyoto

Classifications

• B60W2552/05

  Type of road, e.g. motorways, local streets, paved or unpaved roads · CPC title

• B60W2552/00

  Input parameters relating to infrastructure · CPC title

• B60W2556/50

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

• B60W30/0953

  the prediction being responsive to vehicle dynamic parameters · CPC title

• B60W30/095

  Predicting travel path or likelihood of collision · CPC title