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 (75) comprises a disturbance observer (125) for calculating a value of the disturbance variable on the basis of a mathematical model of the system, and a disturbance predictor (128) for predicting a value of the disturbance variable for a second point in time which follows a first point in time at which said value in calculated by the disturbance observer (125) by a predetermined time interval. In this manner, a phase shift between the disturbance variable actually influencing the system and a compensation for the disturbance variable realized by the system is prevented at high frequencies of the disturbance variable. In a particular embodiment, the disturbance predictor (128) comprises an artificial neural network (207) having a learning phase and a test phase. In a further embodiment, the disturbance predictor (128) supplies a signal corresponding to the value of the disturbance variable calculated by the disturbance observer (125) when the neural network (207) is in the learning phase, and a signal corresponding to the value of the disturbance variable predicted for the second point in time when the neural network (207) is in the test phase. |
申请公布号 |
WO9745777(A2) |
申请公布日期 |
1997.12.04 |
申请号 |
WO1997IB00472 |
申请日期 |
1997.04.30 |
申请人 |
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 |
|
代理人 |
|
主权项 |
|
地址 |
|