A Contactless Surface-Effect Sensor for All-Electric Power Steering 840305
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.
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. Download Citation
Author(s):
W. L. Kelledes, W. K. O'Neil
Affiliated:
Eaton Engineering & Research Center
Pages: 8
Event:
SAE International Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Sensors and Actuators-SP-0567
Related Topics:
Power steering
Steering systems
Electric power
Sensors and actuators
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »