Method and brake system for controlling the braking process in a motor vehicle
AssigneePacifica Group Technologies Pty Ltd.
InventorArmin Arnold
Life of this patent
Estimating the term…
Abstract
A wheelslip is calculated from wheel speed, recorded by speed sensors (6), by a controller (8). A pre-set value for the wheelslip is regulated by means of a proportional controller. Parallel thereto, a set brake pressure for the wheel brakes (3) is fixed, which is determined by the controller (8), by means of the instantaneous wheel torque (Mmomentan) transferred to the ground by the particular wheel (2).
Claims17
A method for controlling a braking process in a motor vehicle, which comprises:
- converting brake actuation signals into brake application forces;
- transmitting wheel speeds of at least some of the wheels of the motor vehicle to a control system;
- calculating a wheel slip from the wheel speeds, and setting a predefined value for the wheel slip by a proportional control and a setpoint brake pressure defined in parallel therewith;
- and
- setting the control to a longitudinal slip above a maximum of a coefficient of static friction, to thereby reduce a lateral guiding force of the wheel and to thereby stabilize a driving behavior of the motor vehicle.
A brake system with control of the braking process in a motor vehicle, comprising:
- wheel speed sensors for sensing respective speeds of the wheels of the motor vehicle and generating sensor signals representing wheel speeds;
- a control system configured to receive the sensor signals, to evaluate the sensor signals, and to calculate values for a wheel slip of individual wheels;
- said control system including a proportional controller and setting a predefined value for the wheel slip by a proportional control and a setpoint brake pressure defined in parallel therewith;
- said control system performing an adjustment in generating control signals for the wheel brakes, said control system determining a setpoint brake pressure and using the setpoint brake pressure, in addition to the adjustment, to set a brake pressure at the wheel brakes for braking the wheels;
- and
- brake actuators connected to receive the control signals and to activate the wheel brakes in accordance therewith.
A method for controlling a braking process in a motor vehicle, which comprises the steps of:
- converting brake actuation signals into brake application forces;
- transmitting signals representing wheel speeds of at least some of the wheels to a control system;
- calculating a wheel slip by the control system from the wheel speeds;
- and
- setting a predefined value for a wheel slip by a proportional control and a setpoint brake pressure defined in parallel therewith.
Dependencies are inferred from the claim text.