Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Indication or control of braking – acceleration – or deceleration
Reexamination Certificate
2007-03-05
2009-10-06
Nguyen, Cuong H (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Indication or control of braking, acceleration, or deceleration
C701S037000, C701S038000, C702S150000, C702S151000, C267S002000, C267S188000, C267S195000, C267S228000
Reexamination Certificate
active
07599779
ABSTRACT:
In an acceleration estimation device for estimating acceleration of a vehicle, a Karman filter for constant speed estimates x-direction acceleration offset and z-direction acceleration offset when a motorcycle is stopped and is traveling at a constant speed. An offset corrector corrects an x-direction acceleration and a z-direction acceleration on the basis of an x-direction acceleration offset estimated value and a z-direction acceleration offset estimated value when the motorcycle is accelerated and decelerated. A Karman filter for acceleration/deceleration estimates the pitch angle of a vehicle body on the basis of a wheel speed and the corrected x-direction acceleration and z-direction acceleration when the motorcycle is accelerated and decelerated. An acceleration corrector obtains an X-direction acceleration and a Z-direction acceleration on the basis of the estimated pitch angle and the corrected x-direction acceleration and z-direction acceleration. A vehicle speed operation unit integrates over time the X-direction acceleration to calculate an X-direction speed.
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Official communication issued in the counterpart European Applic
Nishiike Yoshinobu
Nishiike, legal representative Yoshitaka
Watanabe Hiroto
Keating & Bennett LLP
Nguyen Cuong H
Yamaha Hatsudoki Kabushiki Kaisha
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