HYDRAULIC CONTROL DEVICE

The invention relates to a hydraulic control device (1) comprising: a cylinder body (2) provided with a borehole (3) defining a hydraulic chamber (5), and a piston assembly (4) mounted such that it slides in an axial direction (X) in the borehole of the cylinder body in order to modify a volume of the hydraulic chamber (5). The piston assembly comprises: a rigid piston body (15) having a front endportion facing the hydraulic chamber, an annular magnet (16) carried by the piston body so as to allow a magnetic detection of the axial position of the piston assembly in the borehole of the cylinder body, and an elastic body (18) arranged in a deformed state against an axial end surface and/or a radially inner surface of the annular magnet (16) in such a way as to exert an axially and/or radially oriented elastic load over the entire circumference of the annular magnet. 本发明涉及种液压控制装置(1)，其包括：缸体(2)，具有限定液压室(5)的镗孔(3)；以及活塞总成(4)，其安装成使得该活塞总成在缸体的镗孔中沿轴向方向(X)滑动，以便改变液压室(5)的体积。该活塞总成包括：刚性的活塞体(15)，其具有面向液压室的前端部分；环形磁体(16)，其由活塞体承载，以