Acceleration estimation device and vehicle

Details Acceleration estimation device and vehicle Acceleration estimation device and vehicle

2007-11-06

2007-11-06

Camby, Richard M. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

C701S091000

Reexamination Certificate

active

11682017

ABSTRACT:
In an acceleration estimation device for estimating acceleration of a vehicle, a Karman filter for a constant speed estimates x-direction acceleration offset and z-direction acceleration offset when a motorcycle is stopped and is traveling at constant speed. An offset storage stores an x-direction acceleration offset estimated value and a z-direction acceleration offset estimated value. An offset corrector corrects an x-direction acceleration and a z-direction acceleration on the basis of the x-direction acceleration offset estimated value and the 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 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. A vehicle speed operation unit integrates over time the X-direction acceleration to calculate an X-direction speed.

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Hiroto Watanabe et al.; “Acceleration Estimation Device and Vehicle”; filed Mar. 5, 2007.
Official communication issued in the counterpart European Application No. 07004454.0, mailed on Aug. 7, 2007.

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