| 摘要 |
Method for regulating hydraulic pressure using a flow demand from a pump (4), so as to recharge a pressure accumulator (6), this method using a measurement of the actual pressure in the circuit and a model estimating hydraulic leaks, calculates the derivative with respect to a variable time parameter of the discrepancy between the datum pressure and the measured pressure then uses an inverse accumulator model to obtain a flow prepositioning value that it adds to an estimate of the leaks, then calculates the discrepancy between this result and the leak rate estimate in order to input it to the accumulator model with the measured pressure in order to obtain a pressure derivative datum, then calculates the discrepancy between this datum and the measured pressure derivative in order, in a proportional-integral type regulator, to process it and then finally adds the corrected flow rate value obtained to the flow rate prepositioning value in order to obtain the flow regulation demand. |
