During the past two decades, the automotive industry has been required to develop on-board health monitoring capabilities to meet legislated diagnostic requirements for engine management systems. Real-time diagnostics are presented which monitor the performance of an ETC (Electronic Throttle Control) system to detect and identify a suite of anomalies. The ETC system regulates the throttle plate angle using a DC (Direct Current) servo-motor to adjust the inlet airflow rate. The servo-motor is controlled by the applied armature voltage. The driver's commands and the throttle position feedback signal are processed by the ETC controller to regulate the servo-motor voltage. The ETC system is modeled and a parity diagnostic strategy is applied to detect the presence of faults. The specific nature of the fault is isolated using a parametric estimation methodology. Representative numerical results are presented and discussed to demonstrate the operational performance of the ETC System and health monitoring algorithms.
Diagnosis of automotive electronic throttle control systems
Fehlerdiagnose der elektronischen Drosselregelung bei Kraftfahrzeugen
Control Engineering Practice ; 12 , 1 ; 23-30
2004
8 Seiten, 8 Bilder, 2 Tabellen, 26 Quellen
Article (Journal)
English
Adaptive control of automotive electronic throttle
Tema Archive | 2006
|Tema Archive | 1991
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