发明名称 |
A CONTROL UNIT HAVING A DISTURBANCE PREDICTOR, A SYSTEM CONTROLLED BY SUCH A CONTROL UNIT, AN ELECTRICAL ACTUATOR CONTROLLED BY SUCH A CONTROL UNIT, AND A THROTTLE DEVICE PROVIDED WITH SUCH AN ACTUATOR |
摘要 |
A control unit (75) for controlling a first state variable of a system, for example an angle of rotation phi of a throttle valve (7) in a throttle device for use in an internal-combustion engine, the system being influenced by a disturbance variable during operation, for example an oscillating loading torque caused by air-flow fluctuations in the throttle device. The control unit includes a disturbance observer (125) for calculating a value of the disturbance variable at a first point in time on the basis of a mathematical model of the system, and a disturbance predictor (128) for predicting a value of the disturbance variable at a second point in time which follows the first point in time by a predetermined time interval. In this manner, a phase shift between the disturbance variable actually influencing the system and the compensation provided by the system for the disturbance variable is prevented at high frequencies of the disturbance variable. |
申请公布号 |
EP0847547(B1) |
申请公布日期 |
2002.07.10 |
申请号 |
EP19970917371 |
申请日期 |
1997.04.30 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;PHILIPS NORDEN AB |
发明人 |
SCHOLTEN, LUTZ;TRACHT, RUDOLF |
分类号 |
F02D45/00;F02D11/10;F02D35/00;F02D41/14;G05B11/36;G05B13/02;H02P23/00 |
主分类号 |
F02D45/00 |
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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