Vehicle driving support apparatus

• US 20060111831A1
• Filed: 11/18/2005
• Published: 05/25/2006
• Est. Priority Date: 11/19/2004
• Status: Active Grant

• Current Assignee: Fuji Jukogyo KK (Subaru Corp.)
• Original Assignee: Fuji Jukogyo KK (Subaru Corp.)
• Inventors: Sekiguchi, Mamoru
• Granted Patent: US 7,630,819 B2
• Time in Patent Office: Days
• US Class Current: 701/96
• CPC Class Codes: B60W 30/16 Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
• CPC Class Codes: G05D 1/0251 extracting 3D information from a plurality of images taken from different locations, e.g. stereo vision stereoscopic image analysis H04N13/00; depth recovery from images G06T7/593

Abstract

In an automatic follow-up control, a traveling control unit calculates and sets target intervehicular time on the basis of own vehicle velocity and calculates target acceleration on the basis of an intervehicular distance between an own vehicle and a preceding vehicle, preceding vehicle velocity, the own vehicle velocity, and the target intervehicular time to perform automatic brake control, automatic acceleration control, and the like. The target intervehicular time is calculated and set according to a function of the own vehicle velocity. The function is set as a function of a tendency that, as the own vehicle velocity increases, the target intervehicular time decreases. The function has at least a term in which a first set value and a second set value are defined in advance, the own vehicle velocity is raised to the power of the second value and then multiplied by the first set value.

Claims

1. A vehicle driving support apparatus comprising:

an own-vehicle-traveling-information detecting unit that detects traveling information of an own vehicle;

a leading-vehicle-information detecting unit that recognizes a leading vehicle and detects information on the leading vehicle;

a target-intervehicular-time setting unit that sets target intervehicular time as a function of own vehicle velocity detected by the own-vehicle-traveling-information detecting unit;

a target acceleration calculating unit that calculates target acceleration on the basis of the own vehicle traveling information, the leading vehicle information, and the target intervehicular time; and

an acceleration and deceleration control unit that performs acceleration and deceleration control on the basis of the target acceleration.

2. The vehicle driving support apparatus according to claim 1, wherein the function of the own vehicle velocity defining the target intervehicular time is a function of a tendency that, as the own vehicle velocity increases, the target intervehicular time decreases.

3. The vehicle driving support apparatus according to claim 2, wherein the function of the own vehicle velocity defining the target intervehicular time has at least a term in which a first set value and a second set value are defined in advance, the own vehicle velocity is raised to the power of the second value, and the own vehicle velocity raised to the power of the second value is multiplied by the first set value.

4. A driving support apparatus for a vehicle according to claim 3, wherein the second set value is set to a value larger than 0 and smaller than 1.

5. A driving support apparatus for a vehicle according to claim 3, wherein the first set value is set to a value larger than 0.

6. A driving support apparatus for a vehicle according to claim 4, wherein the second set value is set to a value larger than 0 and smaller than 1.