| 摘要 |
Device for regulating a variable quantity, in particular a pressure relating to an automatic gearbox electrohydraulic control, comprising a drive element (6) associated with a control element (7) which generates the variable quantity (8), the said variable quantity (8) being processed by a sensor (3) in order to give a measurement quantity (2) which is compared with a setpoint quantity (1) so that the possible error epsilon is processed by a regulator (5) of the proportional, integral and derivative type which acts on the drive element (6), characterised in that the said regulating device is provided with a table (10) in which the address of the chosen value is given by the setpoint quantity (1), the said chosen value being added to the given value by the regulator (5) and by the setpoint (1) in order to act on the drive element (6) by means of a convertor (13). The said table (10) is loaded continuously during the steady phases of the variable quantity (8) with the correction which it was necessary to make so that the variable quantity (8) corresponds to the setpoint quantity, so as to obtain a regulating device having comparable closed-loop and open-loop operation after a certain self-learning time. …<IMAGE>… |
