Vehicle motion control system
First Claim
1. A vehicle motion control system for maintaining stability of an automotive vehicle when said vehicle in motion, by controlling a braking force applied to wheels of said vehicle, comprising:
- wheel brake cylinders operatively connected to said wheels for applying the braking force thereto;
pressure generating means for pressurizing a brake fluid in response to depression of a brake pedal and supplying a hydraulic braking pressure to each of said wheel brake cylinders;
pressure control means disposed in a hydraulic circuit communicating said pressure generating means with each of said wheel brake cylinders for controlling the hydraulic braking pressure in each of said wheel brake cylinders;
wheel speed detecting means for detecting a wheel speed of each of said wheels;
braking force control means for actuating said pressure control means in response to the wheel speed detected by said wheel speed detecting means to control the braking force applied to each of said wheels;
vehicle condition detecting means for detecting a condition of said vehicle in motion; and
specific initial control means for providing a predetermined pressure increasing characteristic for the hydraulic braking pressure discharged from said pressure control means on the basis of the output of said vehicle condition detecting means, when said braking force control means initiates the control of the braking force, said braking force control means controlling the hydraulic braking pressure supplied from said pressure control means to said wheel brake cylinders in accordance with the pressure increasing characteristic provided by said specific initial control means to maintain the stability of said vehicle.
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Accused Products
Abstract
The invention is directed to a vehicle motion control system for maintaining vehicle stability by controlling the braking force applied to each wheel, in response to a condition of the vehicle in motion. A predetermined pressure increasing characteristic is provided for the hydraulic braking pressure which is supplied from a pressure control apparatus to wheel brake cylinders, on the basis of the vehicle condition, when the braking force controller initiates the control of the braking force to actuate the pressure control apparatus. And, a predetermined pressure decreasing characteristic is provided for the hydraulic braking pressure, when the braking force controller terminates the control of the braking force. The braking force controller is arranged to control the hydraulic braking pressure supplied from the pressure control apparatus to each wheel brake cylinder in accordance with the pressure increasing characteristic and the pressure decreasing characteristic to maintain the stability of the vehicle.
10 Citations
11 Claims
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1. A vehicle motion control system for maintaining stability of an automotive vehicle when said vehicle in motion, by controlling a braking force applied to wheels of said vehicle, comprising:
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wheel brake cylinders operatively connected to said wheels for applying the braking force thereto; pressure generating means for pressurizing a brake fluid in response to depression of a brake pedal and supplying a hydraulic braking pressure to each of said wheel brake cylinders; pressure control means disposed in a hydraulic circuit communicating said pressure generating means with each of said wheel brake cylinders for controlling the hydraulic braking pressure in each of said wheel brake cylinders; wheel speed detecting means for detecting a wheel speed of each of said wheels; braking force control means for actuating said pressure control means in response to the wheel speed detected by said wheel speed detecting means to control the braking force applied to each of said wheels; vehicle condition detecting means for detecting a condition of said vehicle in motion; and specific initial control means for providing a predetermined pressure increasing characteristic for the hydraulic braking pressure discharged from said pressure control means on the basis of the output of said vehicle condition detecting means, when said braking force control means initiates the control of the braking force, said braking force control means controlling the hydraulic braking pressure supplied from said pressure control means to said wheel brake cylinders in accordance with the pressure increasing characteristic provided by said specific initial control means to maintain the stability of said vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification