US 7,925,415 B2Granted

Vehicle drive assist system

AssigneeFuji Jukogyo Kabushiki Kaisha

InventorShinya Kudo

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Abstract

In automatic steering control, when both a traveling lane and a preceding vehicle are detected, a target position on a first vehicle traveling path based on traveling lane information and a target position on a second vehicle traveling path based on preceding vehicle information are set as a first target position and a second target position, respectively. When the second target position is set farther than the first target position, the correction amount of the distance between the first target position and the second vehicle traveling path is set in accordance with the distance difference in the front-rear direction between the first and second target positions, and a third target position is set by correcting the first target position by the correction amount so as to become closer to the second vehicle traveling path. The steering control amount is calculated on the basis of the third target position.

Claims5

Dependent claims

A vehicle drive assist system comprising:

traveling-lane information detecting unit configured to detect information about a forward traveling lane;
preceding-vehicle information detecting unit configured to detect information about a preceding vehicle;
first-target-position setting unit configured to set a target position on a first vehicle traveling path based on the information about the forward traveling lane as a first target position;
second-target-position setting unit configured to set a target position on a second vehicle traveling path based on the information about the preceding vehicle as a second target position;
third-target-position setting unit configured to set a correction amount in accordance with a distance difference in a front-rear direction between the second target position and the first target position when the second target position is set farther than the first target position, and configured to set a third target position by performing correction by the correction amount so that the first target position becomes closer to the second vehicle traveling path;
and
steering-control-amount calculation unit configured to calculate a steering control amount on the basis of the third target position.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/289,033Filed 17 Oct 2008
Priority: JP 2007-27161218 Oct 2007
Published: US 2009/0125204 A114 May 2009
Granted: 12 Apr 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B62D 15/026
Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation: combined with automatic…
B60W 30/12
Path keeping: lane keeping
B60W 30/16
Adaptive cruise control: control of distance between vehicles, e.g. keeping a distance to preceding vehicle
B60W 60/00
Drive control systems specially adapted for autonomous road vehicles