ROUTE EVALUATION DEVICE

• US 20120072104A1
• Filed: 06/08/2010
• Published: 03/22/2012
• 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, Urano, Hiromitsu, Aso, Kazuaki, Harada, Masahiro, Kindo, Toshiki
• Granted Patent: US 9,109,906 B2
• Time in Patent Office: Days
• US Class Current: 701/400
• 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 route evaluation device comprising:

a route candidate generation unit that generates route candidates of a host-vehicle;

a route prediction unit that predicts routes of another mobile object;

a classification unit that classifies interference forms of the route candidates of the host-vehicle and the predicted routes of another mobile object into a plurality of interference forms;

and a route evaluation unit that evaluates the route candidates of the host-vehicle on the basis of the interference forms classified by the classification unit;

wherein the classification unit classifies the interference forms into at least an interference form in which the host-vehicle interferes with the route of another mobile object an interference form in which another mobile object interferes with the route of the host-vehicle, and

the route evaluation unit highly evaluates the state in which the host-vehicle interferes with the route of another mobile object as a route to be avoided compared to the form in which another mobile object interferes with the route of the host-vehicle.

2. The route evaluation device according to claim 1,

wherein the classification unit classifies the interference forms on the basis of the behaviors of the host-vehicle and another mobile object until interference occurs.

3. (canceled)

4. (canceled)

5. A route evaluation device comprising:

a route candidate generation unit that generates route candidates of a host-vehicle;

a route prediction unit that predicts routes of another mobile object;

an objectivization unit that expresses interference forms of the route candidates of the host-vehicle and the predicted routes of another mobile object by objective numerical values; and

a route evaluation unit that evaluates the route candidates of the host-vehicle on the basis of the numerical values expressed by the objectivization unit;

wherein the objectivization unit calculates an interference ratio representing a probability that the host-vehicle interferes with the route of the mobile object, and

the higher the interference ratio, the more highly the route evaluation unit evaluates the relevant route as a route to be avoided.

6. The route evaluation device according to claim 5,

wherein the objectivization unit expresses the interference forms by objective numerical values on the basis of the behaviors of the host-vehicle and another mobile object until interference occurs.

7. (canceled)

8. (canceled)