ROUTE EVALUATION DEVICE

• US 20150307092A1
• Filed: 07/06/2015
• Published: 10/29/2015
• Est. Priority Date: 06/12/2009
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Sakai, Katsuhiro, Kindo, Toshiki, Urano, Hiromitsu, Aso, Kazuaki, Harada, Masahiro
• Granted Patent: US 9,731,718 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 2554/408 Traffic behavior, e.g. swarm
• CPC Class Codes: B60W 30/09 Taking automatic action to avoid collision, e.g. braking and steering
• CPC Class Codes: B60W 30/095 Predicting travel path or likelihood of collision
• CPC Class Codes: B60W 30/0953 the prediction being responsive to vehicle dynamic parameters
• CPC Class Codes: B60W 30/0956 the prediction being responsive to traffic or environmental parameters
• CPC Class Codes: B60W 30/10 Path keeping cruise control for automatically following a preceding vehicle B60W30/165
• CPC Class Codes: B60W 30/18 Propelling the vehicle
• CPC Class Codes: B60W 30/20 Reducing vibrations in the driveline
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G08G 1/096725 where the received information generates an automatic action on the vehicle control
• CPC Class Codes: G08G 1/09675 where a selection from the received information takes place in the vehicle
• CPC Class Codes: G08G 1/096791 where the origin of the information is another vehicle
• CPC Class Codes: G08G 1/162 event-triggered
• CPC Class Codes: G08G 1/163 involving continuous checking
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes
• CPC Class Codes: G08G 1/167 Driving aids for lane monitoring, lane changing, e.g. blind spot detection

Abstract

Disclosed is a route evaluation device that enables traveling along a route in consideration of an operation of the driver of another vehicle, and can realize a safer traffic environment. A route evaluation device includes a route candidate generation section that generates route candidates of a host-vehicle, a route prediction section that predicts routes of another vehicle, a classification section that classifies the interference states of the route candidates of the host-vehicle and the predicted routes of another vehicle into a plurality of interference forms, and a route evaluation section that evaluates the routes of the host-vehicle on the basis of the interference forms classified by the classification section.

Claims

1. A traveling assist device of a host vehicle, comprising;

a vehicle speed sensor that detects speed information of the host-vehicle;

a vehicle position sensor that detects position information of the host-vehicle; and

an electronic control unit that includes a central processing unit, the electronic control unit is operatively connected to the vehicle speed sensor, the vehicle position sensor, and the host-vehicle, the electronic control unit configured to;

acquire environmental situation information regarding a vicinity of the host-vehicle;

predict a future state of the host-vehicle based on the speed information, the position information of the host-vehicle and the environmental situation information;

generate a plurality of route candidates of the host-vehicle;

predict a future state of a mobile object in the vicinity of the host-vehicle based on the environmental situation information,

generate a plurality of route candidates of the mobile object so that the number of the route candidates of the mobile object becomes larger than that of the route candidates of the host-vehicle;

classify interference states of the route candidates of the host-vehicle and the route candidates of the mobile object into a plurality of interference forms stored in advance;

determine a route of the host-vehicle based on the classified results; and

control the traveling of the host-vehicle based on the determined route.

2. The travelling assist device according to claim 1 further comprising:

a display device,

wherein the electronic control unit is configured to classify the interference states of the route candidates of the host-vehicle and the route candidates of the mobile object into a first interference form in which the host-vehicle interferes with the route of the mobile object and a second interference form in which the mobile object interferes with the route of the host-vehicle; and

wherein the display device is configured to display the route classified as the first interference form and the route classified as the second interference form with different colors.

4. The travelling assist device according to claim 1,

wherein the electronic control unit is configured to classify the interference states of the route candidates of the host-vehicle and the route candidates of the mobile object into a first interference form in which the host-vehicle interferes with the route of the mobile object and a second interference form in which the mobile object interferes with the route of the host-vehicle;

and

wherein the display device is configured to display the route classified as the first interference form and the route classified as the second interference form with different colors.

3. A traveling assist device of a host vehicle, comprising;

a vehicle speed sensor that detects speed information of the host-vehicle;

a vehicle position sensor that detects position information of the host-vehicle;

a display device; and

an electronic control unit that includes a central processing unit, the electronic control unit is operatively connected to the vehicle speed sensor, the vehicle position sensor, and the display device, the electronic control unit configured to;

acquire environmental situation information regarding a vicinity of the host-vehicle;

predict a future state of the host-vehicle based on the speed information, the position information of the host-vehicle and the environmental situation information;

generate a plurality of route candidates of the host-vehicle;

predict a future state of a mobile object in the vicinity of the host-vehicle based on the environmental situation information,

generate a plurality of route candidates of the mobile object so that the number of the route candidates of the mobile object becomes larger than that of the route candidates of the host-vehicle;

classify interference states of the route candidates of the host-vehicle and the route candidates of the mobile object into a plurality of interference forms stored in advance; and

determine a route of the host-vehicle based on the classified results by the classification section;

the display device is configured to display the determine route.