Vehicle control system, specific object determination device, specific object determination method, and non-transitory storage medium storing specific object determination program

• US 9,129,531 B2
• Filed: 11/26/2012
• Issued: 09/08/2015
• Est. Priority Date: 11/28/2011
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Hayashi, Hideaki
• Primary Examiner(s): Edwards, Jerrah
• Assistant Examiner(s): WEBER, TAMARA L
• Application Number:
  US14/361,042
• Publication Number:
  US 20140350838A1
• Time in Patent Office: 1,016 Days
• US Class Current: 1/1
• CPC Class Codes: G01S 13/06 Systems determining position data of a target
• CPC Class Codes: G01S 13/931 of land vehicles
• CPC Class Codes: G01S 2013/9318 Controlling the steering
• CPC Class Codes: G01S 2013/93185 Controlling the brakes
• CPC Class Codes: G01S 2013/932 using own vehicle data, e.g. ground speed, steering wheel direction
• CPC Class Codes: G01S 2013/93271 in the front of the vehicles
• CPC Class Codes: G01S 7/02 of systems according to group G01S13/00
• CPC Class Codes: G08G 1/16 Anti-collision systems road vehicle drive control systems for predicting or avoiding probable or impending collision otherwise than by control of a particular sub-unit B60W30/08

Abstract

A vehicle control system includes: an anti-collision safety control unit executing anti-collision safety control for avoiding or alleviating a collision with an object including a reflection point on the basis of positional information about the reflection point, output from a positional information output unit; and a cancellation unit calculating an index value that increases with a duration of a state where a variation in a position of the reflection point in a direction perpendicular to a vehicle travelling direction is smaller than a predetermined amount and that, when the index value exceeds a threshold, issues a command such that the anti-collision safety control unit does not execute anti-collision safety control over the reflection point. When it is determined that the vehicle is travelling near a curve entrance, the cancellation unit increases the threshold as compared with when it is determined that the vehicle is not travelling near a curve entrance.

Claims

1. A vehicle control system comprising:

a radar unit that irradiates an electromagnetic wave to an area around a vehicle and that outputs information about a received reflected wave;

a positional information output unit that outputs positional information about a reflection point on the basis of the information about the reflected wave, output from the radar unit;

an anti-collision safety control unit that executes anti-collision safety control for avoiding or alleviating a collision with an object that includes the reflection point on the basis of the positional information about the reflection point, output from the positional information output unit;

a cancellation unit that calculates an index value that increases when a variation, over a predetermined period, in a position of the reflection point in a direction perpendicular to a travelling direction of the vehicle is smaller than a predetermined amount and, when the index value exceeds a threshold, issues a command to the anti-collision safety control unit such that the anti-collision safety control unit does not execute anti-collision safety control over the object that includes the reflection point; and

a travel route determination unit that determines whether the vehicle is travelling near an entrance of a curve, wherein

when the travel route determination unit determines that the vehicle is travelling near an entrance of a curve, the cancellation unit increases the threshold as compared with when the travel route determination unit determines that the vehicle is not travelling near an entrance of a curve.

2. The vehicle control system according to claim 1, further comprising:

a singular point determination unit that generates an intensity distribution of the reflected wave from the reflection point on the basis of the information about the reflected wave, output from the radar unit, and that determines whether there is a statistic singular point, wherein

the cancellation unit calculates the index value such that the index value increases with the duration of the state where a variation in the position of the reflection point in the direction perpendicular to the travelling direction of the vehicle is smaller than the predetermined amount when the determination unit determines that there is no statistic singular point in the intensity distribution of the reflected wave from the reflection point and the index value reduces when the determination unit determines that there is the statistic singular point in the intensity distribution of the reflected wave from the reflection point.

3. The vehicle control system according to claim 1, wherein the anti-collision safety control unit executes a plurality of anti-collision safety controls, and

the cancellation unit uses the threshold that is separately set in accordance with the anti-collision safety control.