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A Contactless Surface-Effect Sensor for All-Electric Power Steering
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English
Abstract
This paper describes a contactless differential torque sensor for use in a steering column of a vehicle having an all-electric power steering assist system. The basic concept of an eddy current surface-effect phase shift sensor is described along with its equivalent electrical circuit. A configuration giving low drift and good linearity is proposed. One low-cost method of exciting the sensor and demodulating the signal is shown. Characteristics, a block diagram of an overall electric assist steering system using the sensor and potential advantages of electric power steering are provided.
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Citation
Kelledes, W. and O'Neil, W., "A Contactless Surface-Effect Sensor for All-Electric Power Steering," SAE Technical Paper 840305, 1984, https://doi.org/10.4271/840305.Also In
References
- “A Technique for Noncontact Position Sensing,” SAE 1984 Meeting Anderson Sokalski O'Neil