Vehicle control device

Patent metadata

Field	Value
Publication number	US-2020348682-A1
Application number	US-202016930451-A
Country	US
Kind code	A1
Filing date	Jul 16, 2020
Priority date	Sep 8, 2017
Publication date	Nov 5, 2020
Grant date	—

Abstract

A vehicle control device includes a tracking unit estimating a motion of a moving object, a model selection unit selecting a motion model corresponding to a moving object type, an abnormality determination unit determining a presence or absence of an abnormality of the estimation of the motion of the moving object based on the estimated moving object motion and the motion indicated by the motion model, and a control unit. A control mode in which the control unit controls traveling of a host vehicle when the abnormality determination unit determines that the abnormality is present differs from a control mode in which the control unit controls the traveling of the host vehicle when the abnormality determination unit determines that the abnormality is absent.

First claim

What is claimed is:

1 . A vehicle control device controlling traveling of a host vehicle, the vehicle control device comprising:
a detection unit configured to detect a moving object around the host vehicle; a tracking unit configured to track the moving object based on a detection result of the detection unit and estimate a motion of the moving object; a type determination unit configured to determine a type of the moving object; a model storage unit configured to store a plurality of motion models determined in advance for each moving object type and indicating the motion of the moving object; a model selection unit configured to select the motion model corresponding to the moving object type determined by the type determination unit among the plurality of motion models stored in the model storage unit; an abnormality determination unit configured to determine a presence or absence of an abnormality of the estimation of the motion of the moving object by comparing the motion of the moving object estimated by the tracking unit and the motion indicated by the motion model selected by the model selection unit to each other for a predetermined time; and a control unit configured to control the traveling of the host vehicle, wherein a control mode in which the control unit is configured to control the traveling of the host vehicle when the abnormality determination unit determines that the abnormality is present differs from a control mode in which the control unit is configured to control the traveling of the host vehicle when the abnormality determination unit determines that the abnormality is absent.

2 . The vehicle control device according to claim 1 , further comprising a moving object position acquisition unit configured to acquire a position of the moving object on a map, wherein
the motion model is determined in advance with respect to each position on the map, and the model selection unit is configured to select the motion model corresponding to the position of the moving object acquired by the moving object position acquisition unit.

3 . The vehicle control device according to claim 1 , further comprising a traveling state recognition unit configured to recognize a traveling state of the host vehicle, wherein
the motion model is determined in advance for each traveling state of the moving object, and the model selection unit is configured to select the motion model corresponding to the traveling state of the host vehicle recognized by the traveling state recognition unit.

4 . The vehicle control device according to claim 1 , wherein
the motion model includes
a longitudinal direction parameter as an extension direction parameter of a road where the moving object is present, and
a lateral direction parameter as a width direction parameter of the road where the moving object is present,
the longitudinal direction parameter includes at least any one of a speed of the moving object in an extension direction of the road, an acceleration of the moving object in the extension direction of the road, and a position of the moving object in the extension direction of the road, and the lateral direction parameter includes at least any one of a speed of the moving object in a width direction of the road, an acceleration of the moving object in the width direction of the road, a position of the moving object in the width direction of the road, and a direction of the moving object.

5 . The vehicle control device according to claim 1 , further comprising a positional relationship recognition unit configured to recognize a positional relationship between the host vehicle and the moving object determined to have the motion estimation abnormality based on the detection result of the detection unit, wherein
the control unit is configured to determine the control mode for the control of the traveling of the host vehicle performed when the abnormality determination unit determines that the abnormality is present in accordance with the positional relationship recognized by the positional relationship recognition unit.

6 . The vehicle control device according to claim 5 , further comprising a notification unit configured to provide a notification with respect to a driver of the host vehicle, wherein
the control unit is configured to decelerate the host vehicle and the notification unit is configured to provide the notification for the driver of the host vehicle when the positional relationship recognition unit recognizes that the moving object determined to have the motion estimation abnormality is positioned in front of the host vehicle.

7 . The vehicle control device according to claim 5 , wherein the control unit is configured to allow the host vehicle to perform autonomous traveling in a lane change-prohibited state when the positional relationship recognition unit recognizes that the moving object determined to have the motion estimation abnormality is present at a parallel traveling position with respect to the host vehicle.

8 . The vehicle control device according to claim 5 , wherein,
when the positional relationship recognition unit recognizes that the moving object determined to have the motion estimation abnormality is positioned behind the host vehicle and another moving object is detected in front of the host vehicle by the detection unit, the control unit is configured to accelerate the host vehicle such that a distance between the host vehicle and the moving object in front does not become a predetermined distance or less and a speed of the host vehicle does not exceed a speed limit set on a road where the host vehicle travels, and when the positional relationship recognition unit recognizes that the moving object determined to have the motion estimation abnormality is positioned behind the host vehicle and no moving object is detected in front of the host vehicle by the detection unit, the control unit is configured to accelerate the host vehicle such that the speed of the host vehicle does not exceed the speed limit set on the road where the host vehicle travels.

Assignees

• Toyota Motor Co Ltd

Inventors

• Kamata Nobuhide

Classifications

• B60W50/029

  Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts · CPC title

• B60W60/001

  Planning or execution of driving tasks · CPC title

• G06T7/246 Primary

  using feature-based methods, e.g. the tracking of corners or segments · CPC title

• G06T7/0016

  involving temporal comparison · CPC title

• B60Q9/00

  Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 {, e.g. haptic signalling} · CPC title