Opto-Electronic Torque, Absolute Angle and Rate Sensor for EPAS and EHPAS Steering Applications 1999-01-1035
This paper describes the attributes, performance and development status of a high performance opto-electronic sensor intended for use in electric and electrohydraulic steering systems. This sensor can be used in both underhood and in-cabin environments and provides a measurement of torque, absolute angle and angular velocity to a steering controller.
This device overcomes deficiencies of existing sensors that generally exhibit combinations of problems such as high cost, low stiffness, poor resolution, hysteresis, susceptibility to electromagnetic fields, drift from mechanical wear, overload or environmental extremes and other problems. It has been designed to eliminate the need for calibration during and after manufacture, and can be disassembled and reassembled without recalibration.
In addition the measurement of torque, absolute angle and angular velocity in a single transducer eliminates the need for additional sensors for other vehicle systems such as stability control or intelligent cruise control.
Citation: Eisenhauer, K., Andrew, J., Baxter, J., Boyton, D. et al., "Opto-Electronic Torque, Absolute Angle and Rate Sensor for EPAS and EHPAS Steering Applications," SAE Technical Paper 1999-01-1035, 1999, https://doi.org/10.4271/1999-01-1035. Download Citation
Author(s):
Karl Eisenhauer, James Andrew, John Baxter, Desmond Boyton, Stuart Robinson, Friedrich Heitger
Affiliated:
Bishop Innovation Pty Ltd, Centre Suisse d'Electronique et de Microtechnique SA
Pages: 9
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Electronic Steering and Suspension Systems-PT-77, Sensors and Transducers-PT-68, Sensors and Actuators 1999-SP-1443, SAE 1999 Transactions - Journal of Passenger Cars-V108-6
Related Topics:
Cruise control
Steering systems
Sensors and actuators
Electrohydraulics
Wear
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