Vehicular motion control apparatus and vehicular motion control method
First Claim
1. A vehicular motion control apparatus, comprising:
- a steering operator that is operated by a driver;
a steering angle sensor that detects a steering angle as an absolute rotational angle of the steering operator;
a detector that detects an actual vehicle state quantity; and
a controller that calculates a plurality of target vehicle state quantities on the basis of a plurality of steering angles estimated from the steering angle detected by the steering angle sensor if a reference rotational position of the steering angle sensor has not been determined, and that controls motion of a vehicle on the basis of a minimum difference between the actual vehicle state quantity and the target vehicle state quantities;
wherein the number of the target vehicle state quantities that are calculated is equal to the number of 360°
turns of the reference rotational position of the steering angle sensor within a rotatable angle range of the steering operator.
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Accused Products
Abstract
A vehicular motion control apparatus uses a steering angle detected by a steering angle sensor capable of detecting an absolute rotational angle. This control apparatus has a yaw rate sensor. If a reference rotational position of the steering angle sensor has not been determined, the control apparatus calculates a plurality of target yaw rates on the basis of a plurality of steering angles estimated from a steering angle detected by the steering angle sensor, and controls motion of a vehicle on the basis of the minimum one of differences between the target yaw rates and an actual yaw rate. The control apparatus determines a reference rotational position of the steering angle sensor on the basis of a steering angle corresponding to the minimum one of the differences, and then calculates a steering angle for motion control on the basis of the detected steering angle and the determined reference rotational position.
61 Citations
14 Claims
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1. A vehicular motion control apparatus, comprising:
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a steering operator that is operated by a driver; a steering angle sensor that detects a steering angle as an absolute rotational angle of the steering operator; a detector that detects an actual vehicle state quantity; and a controller that calculates a plurality of target vehicle state quantities on the basis of a plurality of steering angles estimated from the steering angle detected by the steering angle sensor if a reference rotational position of the steering angle sensor has not been determined, and that controls motion of a vehicle on the basis of a minimum difference between the actual vehicle state quantity and the target vehicle state quantities; wherein the number of the target vehicle state quantities that are calculated is equal to the number of 360°
turns of the reference rotational position of the steering angle sensor within a rotatable angle range of the steering operator. - View Dependent Claims (2, 3)
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4. A vehicular motion control apparatus, comprising:
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a steering operator that is operated by a driver; a steering angle sensor that detects a steering angle as an absolute rotational angle of the steering operator; a detector that detects an actual vehicle state quantity; and a controller that calculates a plurality of target vehicle state quantities on the basis of a plurality of steering angles estimated from the steering angle detected by the steering angle sensor, that determines a reference rotational position of the steering angle sensor on the basis of a steering angle corresponding to a minimum difference between the actual vehicle state quantity and the target vehicle state quantities, and that then calculates a steering angle for controlling motion of a vehicle on the basis of the steering angle detected by the steering angle sensor and the determined reference rotational position; wherein the number of the target vehicle state quantities that are calculated is equal to the number of 360°
turns of the reference rotational position of the steering angle sensor within a rotatable angle range of the steering operator. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. A vehicular motion control method, comprising:
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detecting a steering angle as an absolute rotational angle of a steering operator operated by a driver by means of a steering angle sensor; detecting an actual vehicle state quantity; calculating a plurality of target vehicle state quantities on the basis of a plurality of steering angles estimated from the detected steering angle; determining a reference rotational position of the steering angle sensor on the basis of a steering angle corresponding to a minimum difference between the actual vehicle state quantity and the target vehicle state quantities; and calculating a steering angle for controlling motion of the vehicle on the basis of the detected steering angle and the determined reference rotational position; wherein a target vehicle state quantity is determined for each 360°
rotational of the steering operator within a rotatable angle range of the steering operator. - View Dependent Claims (13)
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14. A vehicular motion control method, comprising:
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detecting a steering angle as an absolute rotational angle of a steering operator operated by a driver; detecting an actual vehicle state quantity; calculating a plurality of target vehicle state quantities on the basis of a plurality of steering angles estimated from the detected steering angle if a reference rotational position of the steering angle sensor has not been determined; and controlling motion of the vehicle on the basis of a minimum difference between the target vehicle state quantities and the actual vehicle state quantity; wherein a target vehicle state quantity is determined for each 360°
rotational of the steering operator within a rotatable angle range of the steering operator.
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Specification