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US20090276114: Vehicle Motion Measurement Apparatus, a Vehicle Abnormal Motion Prevention Apparatus and a Drive Recorder

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Filing Information

Inventor(s) Masao Nagai · Yohei Michitsuji · Pongsathorn Raksincharoensak ·
Assignee(s) National University Corporation Tokyo University of Agriculture and Technology ·
Correspondent KANESAKA BERNER AND PARTNERS LLP ·
Application Number US12223594
Filing date 02/07/2007
PCT 371 date 01/23/2009
Publication date 11/05/2009
Predicted expiration date 02/07/2027
U.S. Classifications 701/29  ·
International Classifications B60W3002  ·
Kind CodeA1
PCT Application Number WO20PCTJP2007052551 - 02/07/2007
Foreign Priority JP2006030342 - 02/07/2006 ·
6 Claims, 12 Drawings


Abstract

The apparatus comprises a measured signal detector 11, a vehicle parameter obtainer 12, a sideslip angle temporary estimator 13, a sideslip angle differential corresponding value computer 14 and a sideslip angle real estimator 15. A sideslip angle temporary estimate value is computed from one or plural vehicle parameters including at least the mass. A sideslip angle differential corresponding value is computed from a measured signal and the vehicle parameters including no mass. A sideslip angle is derived from the sideslip angle temporary estimate value and the sideslip angle differential corresponding value. A sideslip can be detected without a steering angle detection mechanism.

Independent Claims | See all claims (6)

  1. 1. A vehicle motion measurement apparatus comprising a driving state variable estimator for detecting plural measured signals other than a steering angle which change depending on the equipped condition of a vehicle; a vehicle parameter obtainer for obtaining at least one vehicle parameter that does not change by the driving condition of the vehicle; a sideslip angle temporary estimator for computing a sideslip angle temporary estimated value from a fist set of parameters selected from the plural measured signals and at least one vehicle parameters including the mass; a sideslip angle differential corresponding value computer for computing a sideslip angle differential corresponding value from a second set of signals selected from the plural measured signals and at least one vehicle parameter including no mass; and a sideslip angle combined estimator for performing a precise estimation of a sideslip angle from the sideslip angle temporary estimate value and the sideslip angle differential corresponding value.
  2. 6-13. (canceled)

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Document NumberAssigneeInventorsIssue/Pub Date
US8396623 --

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