DEVICE AND METHOD FOR ESTIMATING FRICTIONAL CONDITION OF GROUND CONTACT SURFACE OF WHEEL
First Claim
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1. Apparatus for estimating a gripping characteristic of a vehicle wheel of a vehicle on a ground contact surface, comprising:
- an input section configured to set an input representing a ratio of a wheel force acting on the vehicle wheel in the ground contact surface, and a wheel slipping degree of the vehicle wheel; and
an output section configured to determine, from the input, an output representing a grip characteristic parameter indicative of the gripping characteristic of the vehicle wheel.
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Abstract
Apparatus for estimating a ground contact surface gripping characteristic of a vehicle wheel of a vehicle comprises an input section and an output section. The input section sets an input representing a ratio of a wheel force acting on the vehicle wheel in the ground contact surface, and a wheel slipping degree of the vehicle wheel. The output section determines, from the input, an output representing a grip characteristic parameter indicative of the gripping characteristic of the vehicle wheel.
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Citations
67 Claims
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1. Apparatus for estimating a gripping characteristic of a vehicle wheel of a vehicle on a ground contact surface, comprising:
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an input section configured to set an input representing a ratio of a wheel force acting on the vehicle wheel in the ground contact surface, and a wheel slipping degree of the vehicle wheel; and an output section configured to determine, from the input, an output representing a grip characteristic parameter indicative of the gripping characteristic of the vehicle wheel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 62, 64, 65, 66, 67)
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55. A method for estimating a gripping characteristic of a vehicle wheel of a vehicle on a ground contact surface, comprising:
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an input step of setting an input representing a ratio of a wheel force acting on the vehicle wheel in the ground contact surface, and a wheel slipping degree of the vehicle wheel; and an output step of determining, from the input, an output representing a grip characteristic parameter indicative of the gripping characteristic of the vehicle wheel. - View Dependent Claims (56, 57, 58)
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- 59. Apparatus for estimating a vehicle state, comprising gripping characteristic estimating means for determining an output from an input according to a predetermined relationship between the input and the output, the input being a ratio of a wheel force acting on a vehicle wheel in a ground contact surface, and a wheel slipping degree of the vehicle wheel, the output being a grip characteristic parameter indicative of a margin to a road surface grip limit of the vehicle wheel.
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63. Apparatus for estimating a vehicle stability parameter representing a vehicle stability, comprising:
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an input section to set an input representing a ratio of a wheel force acting, in a ground contact surface, on the wheel and a wheel slipping degree of the wheel; and an output section to determine, from the input, an output representing a grip characteristic parameter indicative of a gripping characteristic of the wheel.
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Specification