Patent ID: 6641230
Filing Date: 2003-11-04
Classification: B60T,F16K,Y10S

Abstract:
An anti-locking brake system for a land vehicle, which is set up for traction control and vehicle dynamics control in such a way that a pump for actuating a wheel brake removes brake fluid from a brake pressure generating unit and supplies it to the wheel brake, whereina first valve arrangement is disposed in a connection between the brake pressure generating unit and an input connection of the pump which in a non-actuated (normal) position blocks the connection between the brake pressure generating unit and the input connection of the pump and, in at least one actuated position establishes a primary flow connection directly between the brake pressure generating unit and the input connection of the pump, a first electromagnetic valve is arranged in a connection between an output connection of the pump and the brake pressure generating unit, which, in a non-actuated (normal) position, establishes the connection between the output connection of the pump and the brake pressure generating unit and blocks it in an actuated position, a second electromagnetic valve is arranged in a direct connection to the wheel brake and is also connected to the wheel brake and the input connection of the pump, which, in a non-actuated (normal) position blocks the connection between the wheel brake and the input connection of the pump and establishes it in an actuated position, a third electromagnetic valve is arranged in a connection between the output connection of the pump and the wheel brake, which establishes the connection between the output connection of the pump and the wheel brake in a non-actuated position and blocks it in an actuated position, wherein during a pressure maintaining phase of operation the first valve arrangement is in the non-actuated position, the first electromagnetic valve is in the actuated position, the second electromagnetic valve is in the non-actuated position, the third electromagnetic valve is in the actuated position, and during a pressure reduction phase of operation the first valve arrangement is in the non-actuated position and the first, second and third electromagnetic valves are in the actuated position each, characterized in that the brake fluid flows only into the temporary store.