Abstract: To achieve a compactly designed, simple and robust control valve for a hydrodynamic torque generator which is linear over a wide adjustment range, the control channel (12) of the control valve is formed in such a way that a substantially linear relationship between valve position (?) and flow ({dot over (V)}) is achieved by rotating the valve body (6) between a first valve position (?1), which differs from the closed position, and a second valve position (?2) with a larger flow ({dot over (V)}) than in the first position (?1).

Abstract: The invention relates to a method for testing a brake system (B) of a vehicle (F), wherein simulation results are used for the adaptation of a test on a test stand (P). The object of the invention is to provide a method for improving the test of the brake system (B). In accordance with the invention, this is achieved by creating a first flow simulation model (S1) of the vehicle (F) from geometric data (G) and by creating a second flow simulation model (S2) of the test stand (P), and a first simulation result is calculated with at least one first input variable by using the first flow simulation model (S1), and a change (?) of at least one second input variable in the second simulation model (S2) is carried out until a second simulation result of the second simulation model (S2) is achieved which corresponds essentially to the first simulation result.

Abstract: To achieve a compactly designed, simple and robust control valve for a hydrodynamic torque generator which is linear over a wide adjustment range, the control channel (12) of the control valve is formed in such a way that a substantially linear relationship between valve position (?) and flow ({dot over (V)}) is achieved by rotating the valve body (6) between a first valve position (?1), which differs from the closed position, and a second valve position (?2) with a larger flow ({dot over (V)}) than in the first position (?1).