Adoption of an electronically controlled throttle valve has much potential for improving the performance of automobiles in view of such a valve's flexibility. One of the uses is optional tuning for the accelerator pedal sensitivity, which can be achieved by using two feedback signals, a speed signal and a torque signal, of the wheel axle. It is less expensive and therefore desirable to use a torque signal which does not require a hardware device. Therefore, control using the newly developed software torque meter was attempted in this research. The principle of the software torque meter depends upon a Lüders-Narenda-type adaptive observer. Experimental results showed its superior tuning ability as expected, indicating that the objective of saving costs was achieved. Moreover, it was found that the control achieved adopting the software torque meter is superior to that achieved adopting a hardware sensor, because of the characteristic of low-pass filter of the software torque meter.
Optional tuning of automobile accelerator pedal sensitivity with software torque meter
Optionale Einstellung der Gaspedalempfindlichkeit unter Verwendung eines Drehmomentbeobachters
1999
6 Seiten, 12 Bilder, 6 Quellen
Article (Journal)
English
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