Bistable solenoid valve device, and method for monitoring it

• Main Authors: Goers, Andreas, Teichmann, Andreas
• Format: Patent
• Language: English
• Published: 22.02.2022
• Subjects: ACTUATING-FLOATS; BASIC ELECTRIC ELEMENTS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INDUCTANCES; LIGHTING; MAGNETS; MECHANICAL ENGINEERING; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TAPS; THERMAL INSULATION IN GENERAL; TRANSFORMERS; VALVES; WEAPONS

A bistable solenoid valve device for a fluid system is provided. The bistable solenoid valve device comprises a bistable solenoid valve. The bistable solenoid valve comprises a permanent magnet. The bistable solenoid valve further comprises an armature displaceable between a first armature position and a second armature position. The bistable solenoid valve further comprises a first switching coil for energization for a displacement of the armature into the first armature position. The bistable solenoid valve further comprises a second switching coil for energization for a displacement of the armature into the second armature position. The bistable solenoid valve further comprises an evaluation device adapted to measure an induced coil voltage, an induced coil current, or both the induced coil voltage and the induced coil current, at one or more of the non-energized switching coils. The evaluation device is further adapted to assess a switching behavior of the armature.