DRIVING ASSISTANCE APPARATUS

• US 20140236386A1
• Filed: 09/22/2011
• Published: 08/21/2014
• Est. Priority Date: 09/22/2011
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Yoshizawa, Shintaro, Okamura, Hiroki, Nguyen Van, Quy Hung, Kikuchi, Hirokazu, Yamanashi, Takuya
• Application Number:
  US14/346,502
• Publication Number:
  US 20140236386A1
• Time in Patent Office: Days
• US Class Current: 701/1
• CPC Class Codes: B60K 31/0008 including means for detecting potential obstacles in vehicle path
• CPC Class Codes: B60W 2050/0095 Automatic control mode change
• CPC Class Codes: B60W 2540/30 Driving style
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 30/08 Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
• CPC Class Codes: B60W 30/095 Predicting travel path or likelihood of collision
• CPC Class Codes: B60W 40/08 related to drivers or passengers
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

A driving assistance apparatus includes a plurality of model candidates that define a correspondence relationship between a driving operation performed by a driver and information indicating relative positions of a moving body detected on a periphery of a host vehicle and the host vehicle. The driving assistance apparatus determines a model to be used from among the plurality of model candidates on the basis of information relating to the detected moving body, and executes driving assistance on the basis of the determined model and a driving operation performed by the driver following detection of the moving body. Preferably, the determined model can be updated on the basis of the determined model and the driving operation performed by the driver following detection of the moving body.

Claims

1. A driving assistance apparatus, comprising:

a model database including a plurality of model candidates that define a correspondence relationship between a driving operation performed by a driver and information indicating relative positions of a moving body detected on a periphery of a host vehicle and the host vehicle,

a model determination unit configured to determine a model to be used from among the plurality of model candidates on the basis of information relating to the detected moving body, and

a driving assistance function unit configured to execute driving assistance on the basis of the determined model and the driving operation performed by the driver following detection of the moving body.

2. The driving assistance apparatus according to claim 1, further comprising a model update determination unit configured to perform updating processing on the determined model on the basis of the determined model and the driving operation performed by the driver following detection of the moving body.

3. The driving assistance apparatus according to claim 2, wherein the model update determination unit calculates a compatibility between the determined model and the driving operation performed by the driver following detection of the moving body on the basis of a predetermined number of samples of a correspondence relationship between the model and the driving operation, and updates the model when the compatibility is smaller than a set reference value.

4. The driving assistance apparatus according to claim 3, wherein the model update determination unit is configured to execute both a short-term update based on a short-term compatibility between the model and the driving operation performed by the driver following detection of the moving body, and a long-term update based on a long-term compatibility between the model and the driving operation performed by the driver following detection of the moving body.

5. The driving assistance apparatus according to claim 1, wherein the driving assistance function unit includes a driving behavior prediction determination unit that calculates a degree of deviation between the determined model and the driving operation performed by the driver following detection of the moving body, and executes the driving assistance on the basis of the degree of deviation.

6. The driving assistance apparatus according to claim 2, wherein the model update determination unit is configured to execute both a short-term update based on a short-term compatibility between the model and the driving operation performed by the driver following detection of the moving body, and a long-term update based on a long-term compatibility between the model and the driving operation performed by the driver following detection of the moving body.

7. The driving assistance apparatus according to claim 2, wherein the driving assistance function unit includes a driving behavior prediction determination unit that calculates a degree of deviation between the determined model and the driving operation performed by the driver following detection of the moving body, and executes the driving assistance on the basis of the degree of deviation.