In a first brake circuit and a second brake circuit, a control valve (1) for a regulated output of the brake pressure corresponding to a desired brake operation, in particular as a major dual circuit brake signal transmitter in a compressed air brake system of a vehicle, The first valve system 10 and the lower housing area 2b of the control valve housing 2 are arranged in the upper housing area 2a and the middle housing area 2c of the valve housing 2 and can be actuated by a pedal, In the first valve system (10), the control valve housing (2) has a second valve system (11) which is arranged in the first valve system (10) and can be pneumatically and / A valve piston 3 is arranged which is axially movable by means of a tappet piston 8 against the force of the spring and which is connected to the tappet piston 8 of the first valve system 10, 3 ) Receiving device 14 is provided with an electric switch 17 for recording the start operation of the control valve 1 and / or a travel sensor for outputting an electric movement signal for recording the movement operation of the tappet piston 8 Wherein the electrical switch (17) and / or the travel sensor (18) are connected to the electronic and / or electromechanical measuring unit (13). In the case of such a control valve 1, the electronic and / or electromechanical measuring unit 13 is designed as a sub-unit of a specific purpose of the electronic control brake system and is arranged in a partially closed electronic housing 7, The housing 7 is provided to be interchangeably coupled to or within the receiving device 14 of the solenoid valve 1.
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