Vehicle behavior control apparatus
First Claim
1. A vehicle behavior control apparatus for controlling a behavior of a vehicle including a plurality of wheels having respective tires externally mounted thereon, the vehicle behavior control apparatus comprising:
- a vehicle behavior estimation controller configured to estimate a turning state of the vehicle;
a tire load calculator configured to calculate tire load factors of each of the wheels; and
a vehicle-load controller configured to control, when the vehicle behavior estimation controller estimates that the vehicle is in the turning state, a load applied to each of the wheels based on calculated values of tire load factors indicating a ratio of tire force to maximum friction force of each of the wheels calculated by the tire load calculator, so as to increase a load applied to one of the wheels having a larger one of the tire load factors and to decrease a load applied to one of the wheels having a smaller one of the tire load factors, so that the tire load factors of the respective wheels are equalized,wherein a wheel in which the load is increased by the vehicle-load controller at a time of entering a turn is different from a wheel in which the load is increased by the vehicle-load controller at a time of exiting the turn.
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Accused Products
Abstract
A tire load calculation section of a controller calculates tire load factors of the respective wheels. A target tire load-factor calculation section calculates a tire load factor average value (ηave) obtained by averaging the tire load factors (ηi) of the respective wheels as a target tire load factor. A target tire vertical-load calculation section calculates target tire vertical loads (Fzrefi) for the respective wheels so that the tire load factors of the respective wheels become equal to the tire load factor average value. A vertical-load control section and a suspension control section control thrusts of electromagnetic dampers for the respective wheels so as to achieve the target tire vertical loads.
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Citations
13 Claims
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1. A vehicle behavior control apparatus for controlling a behavior of a vehicle including a plurality of wheels having respective tires externally mounted thereon, the vehicle behavior control apparatus comprising:
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a vehicle behavior estimation controller configured to estimate a turning state of the vehicle; a tire load calculator configured to calculate tire load factors of each of the wheels; and a vehicle-load controller configured to control, when the vehicle behavior estimation controller estimates that the vehicle is in the turning state, a load applied to each of the wheels based on calculated values of tire load factors indicating a ratio of tire force to maximum friction force of each of the wheels calculated by the tire load calculator, so as to increase a load applied to one of the wheels having a larger one of the tire load factors and to decrease a load applied to one of the wheels having a smaller one of the tire load factors, so that the tire load factors of the respective wheels are equalized, wherein a wheel in which the load is increased by the vehicle-load controller at a time of entering a turn is different from a wheel in which the load is increased by the vehicle-load controller at a time of exiting the turn. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicle behavior control apparatus for controlling a behavior of a vehicle including a plurality of wheels having respective tires externally mounted thereon, the vehicle behavior control apparatus comprising:
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a device configured to increase and decrease a vertical load acting on each of the wheels; an estimation controller configured to estimate a turning state of the vehicle; a calculator configured to calculate tire load factors of each of the wheels; and a vertical load controller configured to control the device, when the estimation controller estimates that the vehicle is in the turning state, so as to decrease a load applied on one of the wheels having a smaller one of the tire load factors, and to increase a load applied on one of the wheels having a larger one of the tire load factors, based on calculated values of the tire load factors indicating a ratio of tire force to maximum friction force of each of the wheels calculated by the calculation, so that the tire load factors of the respective wheels are equalized, wherein a wheel in which the load is increased by the vertical load controller at a time of entering a turn is different from a wheel in which the load is increased by the vertical load controller at a time of exiting the turn. - View Dependent Claims (10, 11, 12, 13)
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Specification