Vehicle motion control apparatus
First Claim
1. A vehicle motion control apparatus comprising:
- wheel brake cylinders operatively associated with wheels of a vehicle, respectively;
a master cylinder connected to said wheel brake cylinders through a dual hydraulic circuit with a pair of wheel brake cylinders included in each hydraulic circuit, said master cylinder discharging a hydraulic braking pressure into each hydraulic circuit in response to operation of a brake pedal;
hydraulic pressure regulating means disposed between said master cylinder and said pair of wheel brake cylinders, for regulating the hydraulic braking pressure supplied into each of said pair of wheel brake cylinders;
vehicle state monitor means for monitoring state variable of said vehicle;
turning determination means for determining whether a wheel out of said wheels of said vehicle operatively associated with said pair of wheel brake cylinders is located on the inside of a curve along which said vehicle is turning, or located on the outside of the curve;
road holding determination means for determining a state of road holding of said wheel determined by turning determination means to be located on the inside of the curve;
desired value setting means for setting a desired value for said wheel determined by turning determination means to be located on the outside of the curve, at least in response to the result determined by said road holding determination means; and
control means for controlling said pressure regulating means in response to a result of comparison between the desired value set by said desired value setting means and the state variable monitored by said vehicle state monitor means, to regulate the hydraulic braking pressure in said wheel brake cylinder operatively associated with said wheel located on the outside of the curve.
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Accused Products
Abstract
The present invention is directed to a vehicle motion control apparatus, which includes a hydraulic pressure regulating device disposed between a master cylinder and a pair of wheel brake cylinders included in each of a dual hydraulic circuit, and a monitor for monitoring state variable of the vehicle. It is determined whether a wheel out of the wheels operatively associated with the pair of wheel brake cylinders is located on the inside of a curve along which the vehicle is turning, or located on the outside of the curve. Also, a state of road holding of the wheel located on the inside of the curve is determined. A desired value for the wheel located on the outside of the curve is set at least on the basis of the road holding determination. And, the pressure regulating device is controlled in response to a result of comparison between the desired value and the monitored state variable, to regulate the hydraulic braking pressure in the wheel brake cylinder operatively associated with the wheel located on the outside of the curve, whereby the vehicle is decelerated smoothly, when the wheel located on the inside of the curve has come to be apart from the road.
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Citations
7 Claims
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1. A vehicle motion control apparatus comprising:
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wheel brake cylinders operatively associated with wheels of a vehicle, respectively;
a master cylinder connected to said wheel brake cylinders through a dual hydraulic circuit with a pair of wheel brake cylinders included in each hydraulic circuit, said master cylinder discharging a hydraulic braking pressure into each hydraulic circuit in response to operation of a brake pedal;
hydraulic pressure regulating means disposed between said master cylinder and said pair of wheel brake cylinders, for regulating the hydraulic braking pressure supplied into each of said pair of wheel brake cylinders;
vehicle state monitor means for monitoring state variable of said vehicle;
turning determination means for determining whether a wheel out of said wheels of said vehicle operatively associated with said pair of wheel brake cylinders is located on the inside of a curve along which said vehicle is turning, or located on the outside of the curve;
road holding determination means for determining a state of road holding of said wheel determined by turning determination means to be located on the inside of the curve;
desired value setting means for setting a desired value for said wheel determined by turning determination means to be located on the outside of the curve, at least in response to the result determined by said road holding determination means; and
control means for controlling said pressure regulating means in response to a result of comparison between the desired value set by said desired value setting means and the state variable monitored by said vehicle state monitor means, to regulate the hydraulic braking pressure in said wheel brake cylinder operatively associated with said wheel located on the outside of the curve. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification