Sideslip angle estimation apparatus and method and automotive vehicle incorporating the same
First Claim
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1. A sideslip angle estimation apparatus for estimating a sideslip angle of a vehicle, comprising:
- an acceleration detection section operable to detect acceleration values in two different directions with respect to a vehicle body;
a first sideslip angle estimation section operable to estimate a first sideslip angle between a direction of centrifugal force acting on the vehicle body and a lateral direction of the vehicle body based on the acceleration values detected by the acceleration detection section; and
a sideslip angle calculation section operable to calculate the sideslip angle of the vehicle based on the first sideslip angle.
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Abstract
In order to enhance the accuracy of estimation of sideslip angle β, a sideslip angle estimation apparatus calculates a first sideslip angle β2 between the direction of centrifugal force acting on the vehicle body during cornering and the lateral direction of the vehicle body based on accelerations exerted on the vehicle body and acting in two different directions. A sideslip angle between the longitudinal direction of the vehicle body and the direction of travel of the vehicle is calculated based on the calculated first sideslip angle β2.
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Citations
20 Claims
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1. A sideslip angle estimation apparatus for estimating a sideslip angle of a vehicle, comprising:
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an acceleration detection section operable to detect acceleration values in two different directions with respect to a vehicle body; a first sideslip angle estimation section operable to estimate a first sideslip angle between a direction of centrifugal force acting on the vehicle body and a lateral direction of the vehicle body based on the acceleration values detected by the acceleration detection section; and a sideslip angle calculation section operable to calculate the sideslip angle of the vehicle based on the first sideslip angle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A sideslip angle estimation apparatus for estimating a sideslip angle of a vehicle, comprising:
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first means for detecting a first acceleration in a first direction with respect to a vehicle body; second means for detecting a second acceleration in a second direction with respect to the vehicle body; means for estimating a first sideslip angle between a direction of centrifugal force acting on the vehicle body and a lateral direction of the vehicle body based on the first acceleration and the second acceleration; and means for calculating the sideslip angle based on the first sideslip angle.
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17. A method of estimating a sideslip angle of a vehicle, comprising:
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detecting a first acceleration in a first direction with respect to a vehicle body; detecting a second acceleration in a second direction with respect to the vehicle body; estimating a first sideslip angle between a direction of centrifugal force acting on the vehicle body and a lateral direction of the vehicle body based on the first acceleration and the second acceleration; and calculating the sideslip angle based on the first sideslip angle. - View Dependent Claims (18, 19, 20)
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Specification