A method for controlling a hydraulic retarder system, a control unit, a hydraulic retarder system, a vehicle, a computer program and a computer-readable medium

摘要

The invention relates to a method for controlling a hydraulic retarder system (10), comprising: a first valve unit (14) controlling a fluid pressure in a retarder (12); and a second and a third valve unit (16; 18), wherein the first valve unit (14) is controllable by an air pressure in an air conduit (20), the second and the third valve units (16, 18) are on/off valves, the second valve unit (16) being in communication with a supply pressure (P) and the third valve unit (18) being in communication with atmospheric pressure (P), the method comprising: determining a current air pressure in the air conduit (20); determining a requested air pressure in the air conduit (20); and controlling the second and/or third valve unit (16; 18) based on the requested air pressure in relation to; the current air pressure; the atmosphere pressure (P); the supply pressure (P); and an average pressure (P).