Vehicle motion control system
First Claim
1. A vehicle motion control system for maintaining stability of an automotive vehicle when said vehicle is in motion, by controlling a hydraulic braking pressure in each of wheel brake cylinders operatively mounted on wheels of said vehicle, respectively, to control a braking force applied thereto, comprising:
- a hydraulic braking pressure control apparatus for controlling the braking pressure in each of said wheel brake cylinders at least in response to depression of a brake pedal;
vehicle condition monitor means for monitoring a condition of said vehicle in motion;
steering control means for actuating said apparatus to increase and decrease the braking pressure in at least one of said wheel brake cylinders operatively mounted on at least one of said wheels to control the braking force applied thereto, on the basis of the output of said monitor means and irrespective of depression of said brake pedal;
anti-skid control means for actuating said apparatus to decrease and increase the braking pressure in at least one of said wheel brake cylinders operatively mounted on at least one of said wheels to control the braking force applied thereto, in response to a rotational condition thereof during braking, on the basis of the output of said monitor means; and
pressure increase compensating means for controlling a pressure increasing rate for increasing the braking pressure to a desired pressure which is set after the pressure decreasing operation made by said apparatus when the braking pressure with respect to said at least one of said wheels is controlled in accordance with the control performed by said steering control means and the control performed by said anti-skid control means simultaneously, to be greater than a pressure increasing rate for increasing the braking pressure to the desired pressure in accordance with the control performed only by said anti-skid control means.
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Accused Products
Abstract
The present invention is directed to a vehicle motion control system for maintaining stability of an automotive vehicle when the vehicle is in motion, by controlling a hydraulic braking pressure control apparatus to control a hydraulic braking pressure in each of wheel brake cylinders operatively mounted on each wheel of the vehicle to control a braking force applied thereto. A steering control unit and an anti-skid control unit are provided for actuating the apparatus to control the braking force applied to at least one of the wheels, respectively. A pressure increase compensating unit is provided for controlling a pressure increasing rate for increasing the braking pressure in at least one of the wheel brake cylinders to a desired pressure which is set after the pressure decreasing operation when the braking pressure with respect to at least one of the wheels is controlled in accordance with the control performed by the steering control unit and the control performed by the anti-skid control unit simultaneously, to be greater than a pressure increasing rate for increasing the braking pressure to the desired pressure in accordance with the control performed only by the anti-skid control unit.
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Citations
5 Claims
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1. A vehicle motion control system for maintaining stability of an automotive vehicle when said vehicle is in motion, by controlling a hydraulic braking pressure in each of wheel brake cylinders operatively mounted on wheels of said vehicle, respectively, to control a braking force applied thereto, comprising:
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a hydraulic braking pressure control apparatus for controlling the braking pressure in each of said wheel brake cylinders at least in response to depression of a brake pedal; vehicle condition monitor means for monitoring a condition of said vehicle in motion; steering control means for actuating said apparatus to increase and decrease the braking pressure in at least one of said wheel brake cylinders operatively mounted on at least one of said wheels to control the braking force applied thereto, on the basis of the output of said monitor means and irrespective of depression of said brake pedal; anti-skid control means for actuating said apparatus to decrease and increase the braking pressure in at least one of said wheel brake cylinders operatively mounted on at least one of said wheels to control the braking force applied thereto, in response to a rotational condition thereof during braking, on the basis of the output of said monitor means; and pressure increase compensating means for controlling a pressure increasing rate for increasing the braking pressure to a desired pressure which is set after the pressure decreasing operation made by said apparatus when the braking pressure with respect to said at least one of said wheels is controlled in accordance with the control performed by said steering control means and the control performed by said anti-skid control means simultaneously, to be greater than a pressure increasing rate for increasing the braking pressure to the desired pressure in accordance with the control performed only by said anti-skid control means. - View Dependent Claims (2, 3, 4, 5)
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Specification