Vehicle motion measurement apparatus, a vehicle abnormal motion prevention apparatus and a drive recorder

US8090492B2 · kind B2 · utility

Assignee

• NATIONAL UNIVERSITY ORPORATION TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGY · JP

Inventors

• Masao Nagai · Norcross, US
• Yohei Michitsuji · Hitachi, JP
• Pongsathorn Raksincharoensak · Fuchu, JP

Key dates

• Filing date: Feb 7, 2007
• Grant date: Jan 3, 2012
• Expiry date: Nov 19, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W40/101
• WIPO field: Transport
• WIPO sector: Mechanical engineering

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.