发明名称 |
Combine having a system estimator to automatically estimate and dynamically change a target control parameter in a control algorithm |
摘要 |
An agricultural combine includes a rotor drive system to which sensors are coupled to signal the rotational speed of a hydraulic motor and an engine. An electronic controller that contains a mathematical model of the system reads the sensors and using the model estimates additional parameters of the system. The estimated parameters include a gearbox's gear ratio and a planetary ring gear's speed. These estimated parameters and the sensor readings are used in a PID feedback control loop to control the speed of a planetary ring gear by controlling the speed of a hydraulic motor driving the sun gear. In this manner, the controller can drive the ring gear to a predetermined speed that reduces the difference in the input and output speeds of a hydraulic clutch and thereby engage that clutch while reducing shock to the clutch and other mechanical components of the combine.
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申请公布号 |
US2005085282(A1) |
申请公布日期 |
2005.04.21 |
申请号 |
US20040969398 |
申请日期 |
2004.10.20 |
申请人 |
HO YUN-REN;BUNDY JOHN E.;BROME JOHN G. |
发明人 |
HO YUN-REN;BUNDY JOHN E.;BROME JOHN G. |
分类号 |
A01D41/127;F16H59/68;F16H61/46;F16H61/47;(IPC1-7):A01D1/00 |
主分类号 |
A01D41/127 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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