This paper uses data from a GPS/INS integrated device to investigate the feasibility of estimating vehicle states using a consumer grade GPS and INS. The GPS data is sampled at 1Hz to represent a consumer grade GPS. This data is then fused with INS data in a dual Kinematic Kalman Filter (KKF). The first KKF (yaw KKF) predicts heading angle, bias in gyroscope and sideslip angle. The second KKF (velocity KKF) predicts longitudinal and lateral velocities as well as the accelerometer biases. Due to the multirate sampling, discontinuities in the estimated states occur, hence, a line interpolation algorithm of two different orders (i.e. linear and quadratic) are implemented into the KKF. Results show that the algorithm is able to reduce the discontinuities in the velocity predictions but with an increase in error when the sideslip saturates.


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    Title :

    Ideal Vehicle Sideslip Estimation Using Consumer Grade GPS and INS


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE World Congress & Exhibition ; 2009



    Publication date :

    2009-04-20




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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