초록 ▼

A control system for an agricultural harvester having a frame and a header. The header attaches to a feeder which connects the header to the harvester, and header to feeder attaching point has a position which is adjustable relative to the frame. In at least one mode, when an operator raises the fee

A control system for an agricultural harvester having a frame and a header. The header attaches to a feeder which connects the header to the harvester, and header to feeder attaching point has a position which is adjustable relative to the frame. In at least one mode, when an operator raises the feeder above a predetermined height, the control system automatically levels the header to the frame of the harvester, even though the header was being operated manually in a lowered position. The control system includes a feeder housing limit switch that indicates when the operator raises the feeder above a predetermined height. When operating in the automatic centering mode, the header tilt control module compares the centering signal and the balance signal to automatically level the header relative to the frame of the harvester.

대표청구항 ▼

A control system for an agricultural harvester having a frame and a header. The header attaches to a feeder which connects the header to the harvester, and header to feeder attaching point has a position which is adjustable relative to the frame. In at least one mode, when an operator raises the fee

A control system for an agricultural harvester having a frame and a header. The header attaches to a feeder which connects the header to the harvester, and header to feeder attaching point has a position which is adjustable relative to the frame. In at least one mode, when an operator raises the feeder above a predetermined height, the control system automatically levels the header to the frame of the harvester, even though the header was being operated manually in a lowered position. The control system includes a feeder housing limit switch that indicates when the operator raises the feeder above a predetermined height. When operating in the automatic centering mode, the header tilt control module compares the centering signal and the balance signal to automatically level the header relative to the frame of the harvester. g a plurality of switching element configured to switch one of the reference voltages to a capacitor. 17. The filter of claim 12, wherein the first cascaded section is implemented by a digital SINC and a delay line with decimation. 18. The filter of claim 13, wherein the first cascaded section is a first order filter. 19. A filter for oversampling Sigma-Delta digital-to-analog converter circuits, comprising: a SINC filter that decimates a digital data input signal by a predetermined factor of an over-sampling ratio utilized by a Sigma-Delta modulator, the SINC filter being defined by a cascaded architecture that is defined by first and second cascaded sections having first and second constituent transfer functions H1(z) and H2(z), wherein: a switched-capacitor biquad filter having a programmable cut-off frequency, which tracks the over-sampling ratio.