Vehicle control device

Patent metadata

Field	Value
Publication number	US-10220842-B2
Application number	US-201715411186-A
Country	US
Kind code	B2
Filing date	Jan 20, 2017
Priority date	Feb 12, 2016
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

When an own vehicle V 1 crosses an opposite traffic lane R 2 at an intersection to make a right turn, an ECU 20 such as a vehicle control device detects a presence of a crossing person P crossing a crosswalk CW existing near the intersection on a road R 3 which the vehicle V 1 is directed to enter by making the right turn, detects a size of a space between the crosswalk SP on which the detected crossing person P crosses and the opposite traffic lane, and when performing a control for braking the vehicle V 1 so as to avoid a collision of at least the vehicle V 1 with the crossing person P, changes a timing to perform the control for braking the vehicle V 1 based on the detected size of the space SP up to the crosswalk CW.

First claim

What is claimed is:

1. A vehicle control device, comprising:
a brake which applies a braking force to a vehicle; and
a controller which is configured to control the brake for braking the vehicle,
wherein the controller is configure to:
when the vehicle crosses an opposite traffic lane at an intersection to make a right or left turn, detect a presence of a crossing person crossing a crosswalk existing near the intersection and on a road to which the vehicle is directed to enter by making the right or left turn;
when the presence of the crossing person crossing the crosswalk is detected, detect a size of a space between the crosswalk and the opposite traffic lane, wherein the size of the space is a length of the space along the road to which the vehicle is directed to enter by making the right or left turn; and
perform a control for braking the vehicle by controlling the brake in order to avoid a collision of the vehicle with the crossing person,
wherein, when the length of the space is shorter than a longitudinal length of the vehicle, the controller is configured to set a timing for performing the control for braking the vehicle so that the vehicle can be stopped within an own lane before reaching the opposite traffic lane by performing the control for braking the vehicle, and
wherein, when the length of the space is longer than the longitudinal length, the controller is configured to set the timing for performing the control for braking the vehicle so that the vehicle can be stopped within the space by performing the control for braking the vehicle.

2. The vehicle control device according to claim 1 , wherein, when the length of the space is shorter than the longitudinal length, the controller is configured to make a timing for starting the control for braking the vehicle earlier than when the length of the space is longer than the longitudinal length.

3. The vehicle control device according to claim 2 ,
wherein the controller is configured to determine a Time to Collision of the vehicle with respect to the crossing person, based on a distance from the vehicle to the crossing person and a relative speed of the vehicle with respect to the crossing person, in order to start the control for braking the vehicle when the Time to Collision becomes equal to or smaller than a predetermined threshold value, and
wherein, when the length of the space is shorter than the longitudinal length, the controller is configured to set the threshold value larger than when the length of the space is longer than the longitudinal length, in order to make the timing for starting the control earlier.

4. The vehicle control device according to claim 1 ,
wherein, when the vehicle crosses the opposite traffic lane to make the right or left turn, the controller is configured to determine a possibility of the vehicle colliding with another vehicle approaching on the opposite traffic lane, and
wherein, when it is determined that there is no possibility of the vehicle colliding with another vehicle, the controller is configured to inhibit execution of the control for braking the vehicle, and to provide an alarm to a driver.

Assignees

• Mazda Motor

Inventors

• Moritani Takayuki
• Yamashita Takeharu
• Kojima Kouichi

Classifications

• B60W2554/00

  Input parameters relating to objects · CPC title

• B60T2201/022

  Collision avoidance systems · CPC title

• B60T7/22 Primary

  initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle {, or by means of contactless obstacle detectors mounted on the vehicle} · CPC title

• B60T2210/32

  Vehicle surroundings · CPC title

• B60W30/09 Primary

  Taking automatic action to avoid collision, e.g. braking and steering · CPC title