Importance

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Abstract

An anti-locking brake system for a land vehicle, which is set up in particular for traction control and vehicle dynamics control, comprises a pump (42) for actuating a wheel brake (37) which removes brake fluid from a brake pressure generating unit (31) and supplies it to the wheel brake (37), wherein a first valve arrangement (1) blocks in a non-actuated (normal) position (1.1) the connection between the brake pressure generating unit (31) and an input connection (42e) of the pump (42) and in at least one actuated position (1.3) establishes a primary flow connection (A), a first electromagnetic valve (50) establishes in a non-actuated position (50.1) the connection between an output connection (42a) of the pump (42) and the brake pressure generating unit (31), and blocks it in an actuated position (50.2), a second electromagnetic valve (39) blocks the connection between the wheel brake (37) and the input connection (42e) of the pump (42) in a non-actuated position, and in an actuated position establishes it, and a third electromagnetic valve (38) establishes the connection between the output connection (42a) of the pump (42) and the wheel brake (37) in a non-actuated position (38.1) and blocks it in an actuated position (38.2). To generate a more accurate pressure modulation during the operating phase 'maintain pressure' (II), the third electromagnetic valve (38) is in the actuated position during said operating phase.

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First Claim