| 摘要 |
<p>A combine harvester comprising an engine, a traction drive transmission (31), a header (12), and a threshing and separating mechanism (9), the combine harvester further comprising a machine throughput control system. This system is comprising a machine loading control loop (37,62,61, 38,39, 41, 31) operable to produce a signal representative of machine loading, a grain loss control loop (44, 45, 36, 38, 39, 41,31) operable to produce a signal representative of grain. A grain loss controller (46) is continuously operable to establish a causal relationship between machine loading and grain loss, the machine loading signal, the causal relationship current with that machine loading signal, and a reference loss signal being applied to the grain loss controller (46) to derive a reference machine loading signal therefrom. Means (38) are provided for algebraically summing the representative machine loading signal and the reference machine loading signal to produce a machine loading error signal which is used to control machine throughput.</p> |
