Method for estimating coefficient of friction of a hydraulic brake system
AssigneeAudi AG
InventorMatthias Geuß
Life of this patent
Estimating the term…
Abstract
A system and a method for estimating the coefficient of friction of a hydraulic brake system with axle-individual pressure buildup of a motor vehicle. In addition, a system and to a method for setting the target braking torque of a hydraulic braking system with axle-individual buildup of a motor vehicle in order to obtain a desired actual braking torque.
Claims9
A system for estimating a coefficient of friction of a hydraulic brake system, provided with an axle-individual pressure buildup of a motor vehicle, comprising:
- at least one hydraulic brake system with axle-individual pressure buildup, which acts on a wheel or an axle of a motor vehicle;
- at least one other actuator system, which can apply a braking torque to the wheel or to the axle with a higher actuating precision than the hydraulic brake system with axle-individual pressure buildup;
- at least one sensor;
- and a unit for calculating an estimated coefficient of friction from data received from the sensor.
A system for setting a target braking torque of a hydraulic braking system with axle-individual pressure buildup of a motor vehicle to a desired actual braking torque, comprising:
- at least one hydraulic brake system with axle-individual pressure buildup, which acts on a wheel or an axle of the motor vehicle,
- at least one other actuator system, which can apply a braking torque to a wheel or to an axle with a higher actuating precision;
- at least one sensor;
- a unit for calculating an actual braking torque from data received from the sensor;
- and
- a unit for changing the target braking torque of the hydraulic brake system.
Dependencies are inferred from the claim text.