| 摘要 |
<p>According to the present invention, a variable displacement transmission pump having a controller for adjusting a displaced volume, wherein the controller actuates corresponding adjuster actuators of an adjustable pump via a control valve, so that the pump can be adjusted from minimum to maximum displaced volume in order to achieve constant pump outlet pressure for supplying a hydraulically operated transmission, wherein for different operating points of both the adjustable pump and the transmission, the input variables of the controller are adjusted in such a way that, independently of the individual operating points, the overall damping of the control system comprising pump and transmission, and that is, using corresponding influence variables from these systems, can be maintained substantially constant under variable operating conditions by means of adjustable controller amplification.</p> |
