Method and device for determining pick-up pressure of vehicle brakes applies a test pressure to brakes being examined by generating a test pressure indicator signal before and after generating test pressure.

摘要

Before and after generating test pressure a test pressure indicator signal is generated that comprises a linear combination of an acceleration signal and a signal for differences in speed. If both test pressure indicator signals match, showing 'brake non-pick up', then test pressure is increased and a new test pressure indicator signal is generated. If both test pressure indicator signals do not match, then available brake pressure is regarded as pick-up pressure.