Rotor Position Sensor for Hybrid Drives and Electric Drives New Generation Eddy Current Position Sensor

Brunel, Olivier; Moller, Rainer

doi:10.4271/2011-01-0441

Cited by 3 publications

(3 citation statements)

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“…An alternative to the resolver position sensor is the inductive sensor principle, also denoted as an eddy current position sensor [8]. This sensor principle comprises two main components; a metallic rotor that can be of copper or aluminum and a coil design, which is printed on a two-sided Printed Circuit Board (PCB).…”

Section: Inductive Position Sensormentioning

confidence: 99%

“…In other words, one bridge delivers a sine output signal, the other bridge a cosine signal. The calculation of the resulting voltage per bridge is given by Equation (8). Consequently, the position can be determined according to Equation (9).…”

Section: Magnetoresistive Position Sensormentioning

confidence: 99%

“…In today's electric powertrain development processes, the sensor specifications delivered by sensor manufacturers are taken into account [8], but these do not provide sufficient details about the sensor characteristics. This often leads to a challenge for the automotive industry when selecting an unbiased sensor.…”

Section: Introductionmentioning

confidence: 99%

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Benchmark of Rotor Position Sensor Technologies for Application in Automotive Electric Drive Trains

Datlinger

Hirz

2020

Electronics

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Rotor shaft position sensors are required to ensure the efficient and reliable control of Permanent Magnet Synchronous Machines (PMSM), which are often applied as traction motors in electrified automotive powertrains. In general, various sensor principles are available, e.g., resolvers and inductive- or magnetoresistive sensors. Each technology is characterized by strengths and weaknesses in terms of measurement accuracy, space demands, disturbing factors and costs, etc. Since the most frequently applied technology, the resolver, shows some weaknesses and is relatively costly, alternative technologies have been introduced during the past years. This paper investigates state-of-the-art position sensor technologies and compares their potentials for use in PMSM in automotive powertrain systems. The corresponding evaluation criteria are defined according to the typical requirements of automotive electric powertrains, and include the provided sensor accuracy under the influence of mechanical tolerances and deviations, integration size, and different electrical- and signal processing-related parameters. The study presents a mapping of the potentials of different rotor position sensor technologies with the target to support the selection of suitable sensor technologies for specified powertrain control applications, addressing both system design and components development.

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Section: Inductive Position Sensormentioning

confidence: 99%

Section: Magnetoresistive Position Sensormentioning

confidence: 99%