Roll increasing tendency estimation apparatus
First Claim
1. An apparatus for estimating a roll increasing tendency of a vehicle, comprising:
- roll input magnitude calculation means for calculating a state variable in response to magnitude of a rolling moment of said vehicle, to provide a roll input magnitude;
roll input velocity calculation means for calculating a state variable in response to variation in time of the rolling moment, to provide a roll input velocity; and
roll increasing tendency estimation means for estimating the roll increasing tendency of said vehicle, on the basis of a relationship between the roll input magnitude calculated by said roll input magnitude calculation means and the roll input velocity calculated by said roll input velocity calculation means.
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Accused Products
Abstract
According to a roll increasing tendency estimation apparatus, a state variable is calculated in response to magnitude of a rolling moment of the vehicle, to provide a roll input magnitude, and a state variable is calculated in response to variation in time of the rolling moment, to provide a roll input velocity. A roll increasing tendency of a vehicle is estimated on the basis of a relationship between the calculated roll input magnitude and the calculated roll input velocity. On the basis of a relationship between the roll input magnitude and roll input velocity, at least one of a braking force control and a driving force control may be performed, to restrain the roll increasing tendency of the vehicle.
12 Citations
14 Claims
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1. An apparatus for estimating a roll increasing tendency of a vehicle, comprising:
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roll input magnitude calculation means for calculating a state variable in response to magnitude of a rolling moment of said vehicle, to provide a roll input magnitude;
roll input velocity calculation means for calculating a state variable in response to variation in time of the rolling moment, to provide a roll input velocity; and
roll increasing tendency estimation means for estimating the roll increasing tendency of said vehicle, on the basis of a relationship between the roll input magnitude calculated by said roll input magnitude calculation means and the roll input velocity calculated by said roll input velocity calculation means. - View Dependent Claims (2, 3)
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4. A vehicle motion stability control apparatus for restraining a roll increasing tendency of a vehicle, comprising:
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roll input magnitude calculation means for calculating a state variable in response to magnitude of a rolling moment of said vehicle, to provide a roll input magnitude;
roll input velocity calculation means for calculating a state variable in response to variation in time of the rolling moment, to provide a roll input velocity; and
control means for performing at least one of a braking force control and a driving force control of said vehicle, on the basis of a relationship between the roll input magnitude calculated by said roll input magnitude calculation means and the roll input velocity calculated by said roll input velocity calculation means, to restrain the roll increasing tendency of said vehicle. - View Dependent Claims (5, 6, 7)
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8. A vehicle motion stability control apparatus for restraining a roll increasing tendency of a vehicle, comprising:
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reference setting means for setting a reference for estimating the roll increasing tendency of said vehicle;
roll input magnitude calculation means for calculating a state variable in response to magnitude of a rolling moment of said vehicle, to provide a roll input magnitude;
roll input velocity calculation means for calculating a state variable in response to variation in time of the rolling moment, to provide a roll input velocity;
actual roll state variable calculation means for calculating an actual roll state variable of said vehicle, with the roll input magnitude calculated by said roll input magnitude calculation means and the roll input velocity calculated by said roll input velocity calculation means being as state variables; and
control means for performing at least one of a braking force control and a driving force control of said vehicle, on the basis of a deviation between the actual roll state variable calculated by said actual roll state variable calculation means and the reference set by said reference setting means, to restrain the roll increasing tendency of said vehicle. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification