DRIVING ASSISTANCE DEVICE

• US 20120277955A1
• Filed: 12/28/2009
• Published: 11/01/2012
• Est. Priority Date: 12/28/2009
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Irie, Yoshiaki
• Application Number:
  US13/376,601
• Publication Number:
  US 20120277955A1
• Time in Patent Office: Days
• US Class Current: 701/41
• CPC Class Codes: B60W 2552/30 Road curve radius
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 30/02 Control of vehicle driving stability
• CPC Class Codes: B60W 30/146 Speed limiting
• CPC Class Codes: B60W 30/18145 Cornering
• CPC Class Codes: B60W 50/0097 Predicting future conditions

Abstract

Based on a requested target input by the driver using input means 14 (such as a destination, a travel method to the destination, for example, whether time is a priority or a fuel consumption is a priority), the driver plan creating ECU 1 selects the travel path based on the map information stored in map DB 13 and the current positional information of the vehicle obtained by the GPS 12. Additionally, the path information of the selected path is obtained, and the target track of the vehicle on the selected path is calculated. The variable area which is variable range of the calculated tracking based on the path information is obtained. The driving control ECU 2 uses the variable area information at the time of vehicle control.

Claims

1-7. -7. (canceled)

8. A driving assistance device comprising:

path target acquisition means for obtaining a driver requested target at the time of travel path setting;

path selection means for selecting a travel path according to the acquired target;

path information acquisition means for obtaining path information of the selected path;

target track computation means for calculating a target track of a vehicle on the selected path;

variable area calculation means for determining a passable area of the vehicle on the path based on the path information and obtaining a variable area, a range in which change is allowed, of the track calculated based on the passable area;

driver'"'"'s intention estimation means for estimating intention of travel based on a driver'"'"'s manipulation state;

modification means for modifying the target track or a support manipulation depending on the obtained variable area based on the estimated driver'"'"'s intention of manipulation when a path movement support is performed based on the established target track.

9. The driving assistance device according to claim 8, wherein the target track is modified using the modification means by changing a curvature in the track.

10. The driving assistance device according to claim 8, further comprising vehicle behavior control means for controlling the vehicle behavior, wherein the modification means changes the control intervention ratio by the vehicle behavior control means based on the estimated driver manipulation volition and the obtained variable range.

11. The driving assistance device according to claim 10, wherein the vehicle behavior control means is steering property change means for changing the steering property.

12. The driving assistance device according to claim 8, further comprising:

vehicle behavior control means for controlling vehicle behavior;

anticipated curvature calculation means for obtaining an anticipated curvature of a travel path based on the detected driver volition; and

curvature comparison means for comparing the obtained anticipated curvature and a curvature of the path obtained by the path information acquisition means,

wherein a control condition is changed by the vehicle behavior control means based on the comparison result.