Control system for hydraulic or pneumatic cylinder units - updates data representative of state variations immediately in accordance with measured deviations from desired-value settings

摘要

The valve (6) co-operating with a piston-cylinder unit (4) is controlled (8) in accordance with measured actual values of physical quantities such as position, displacement, pressure, flow and temp. Monitored by intelligent microprocessor sensors (26). A combined input/output transmitter (28), replacing sepd. input and output transmitters (14,22), may be interfaced (28a) to a central bus (16) serving a computer (18) which addresses external transmitters (14,22,28), and a distributor (32) which may have an additional display function utilising an LED (34). USE/ADVANTAGE - In vehicular suspensions with shock and vibration dampers. Time delay in operation of the cylinder units is practically eliminated.