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Title:
TRAVELING CONTROL DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2004255999
Kind Code:
A
Abstract:

To reduce influence of an erroneous detection, etc. of a road surface on a traveling control device at a low cost without providing a complicated mechanism.

This device is provided with an inter-vehicle distance sensor 12 for detecting a distance up to an object in front of a present vehicle and relative speed and an inter-vehicle distance control part 20 for controlling at least one of braking and driving of the present vehicle based on the inter-vehicle distance and relative speed detected by the inter-vehicle distance sensor 12. The device is provided with an optical axis vertical fluctuation detecting part 21 for calculating pitch angle speed, vertical displacement speed of the inter-vehicle distance sensor 12 and a gradient angle rate of change of the road surface based on vertical acceleration of a vertical acceleration sensor for detecting a vertical motion of the present vehicle, the inter-vehicle distance and the relative speed, and a road surface detection judging part 22 for estimating an erroneous detection object based on the pitch angle speed calculated by the optical axis vertical fluctuation detecting part 21, the vertical displacement speed of the inter-vehicle distance sensor 12 and the gradient angle rate of change of the road surface. The device is provided with an inter-vehicle distance control characteristic varying part 23 for changing a control characteristic of the inter-vehicle distance control part 20 according to the erroneous characteristic detection object estimated by the road surface detection judging part 22.


Inventors:
Yamamura, Yoshinori
Seto, Yoji
Application Number:
JP2003000048767
Publication Date:
September 16, 2004
Filing Date:
February 26, 2003
Export Citation:
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Assignee:
NISSAN MOTOR CO LTD
International Classes:
B60R21/00; B60K31/00; B60T7/12; B60W10/04; B60W10/06; B60W10/18; B60W10/188; B60W30/00; B60W50/02; F02D29/02; G08G1/16; (IPC1-7): B60K31/00; B60K41/00; B60K41/20; B60R21/00; B60T7/12; F02D29/02; G08G1/16
Attorney, Agent or Firm:
森 哲也
内藤 嘉昭
崔 秀▲てつ▼