A Low-Cost Current Transducer for Automotive Actuators

JN McNeill; SG Burrow; G Iordanidis; DMJ Holliday; PH Mellor

A Low-Cost Current Transducer for Automotive Actuators

JN McNeill
, SG Burrow
, G Iordanidis
, DMJ Holliday
, PH Mellor

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

Abstract

Electric actuators in automotive systems may require a current transducer for control purposes. A low-cost noninvasive transducer design based around a current transformer is described in this paper. The problem of droop in the output signal is addressed by controlling the current transformer's secondary terminal voltage in response to the rate of core flux change. This is detected using a tertiary flux-change sense winding. The circuit is suited for use in high-temperature automotive environments. The bandwidth of the circuit is high, allowing it to be used in peak current mode or hysteresis control schemes. Operation when sensing a 100A current pulse of 10 ms duration is demonstrated and shows good agreement with the simulated performance.

Translated title of the contribution	A Low-Cost Current Transducer for Automotive Actuators
Original language	English
Title of host publication	SAE 2006 World Congress & Exhibition, Detroit, USA, April 2006
Publisher	SAE International
Pages	990 - 997
Number of pages	8
ISBN (Print)	9780768018394
Publication status	Published - 1 Apr 2006

Bibliographical note

Conference Proceedings/Title of Journal: SAE 2006 Transactions Journal of Passenger Cars: Electronic and Electrical Systems
Conference Organiser: SAE
Other identifier: 2006-01-1594

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title = "A Low-Cost Current Transducer for Automotive Actuators",

abstract = "Electric actuators in automotive systems may require a current transducer for control purposes. A low-cost noninvasive transducer design based around a current transformer is described in this paper. The problem of droop in the output signal is addressed by controlling the current transformer's secondary terminal voltage in response to the rate of core flux change. This is detected using a tertiary flux-change sense winding. The circuit is suited for use in high-temperature automotive environments. The bandwidth of the circuit is high, allowing it to be used in peak current mode or hysteresis control schemes. Operation when sensing a 100A current pulse of 10 ms duration is demonstrated and shows good agreement with the simulated performance.",

author = "JN McNeill and SG Burrow and G Iordanidis and DMJ Holliday and PH Mellor",

note = "Conference Proceedings/Title of Journal: SAE 2006 Transactions Journal of Passenger Cars: Electronic and Electrical Systems Conference Organiser: SAE Other identifier: 2006-01-1594",

year = "2006",

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language = "English",

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T1 - A Low-Cost Current Transducer for Automotive Actuators

AU - McNeill, JN

AU - Burrow, SG

AU - Iordanidis, G

AU - Holliday, DMJ

AU - Mellor, PH

N1 - Conference Proceedings/Title of Journal: SAE 2006 Transactions Journal of Passenger Cars: Electronic and Electrical Systems Conference Organiser: SAE Other identifier: 2006-01-1594

PY - 2006/4/1

Y1 - 2006/4/1

N2 - Electric actuators in automotive systems may require a current transducer for control purposes. A low-cost noninvasive transducer design based around a current transformer is described in this paper. The problem of droop in the output signal is addressed by controlling the current transformer's secondary terminal voltage in response to the rate of core flux change. This is detected using a tertiary flux-change sense winding. The circuit is suited for use in high-temperature automotive environments. The bandwidth of the circuit is high, allowing it to be used in peak current mode or hysteresis control schemes. Operation when sensing a 100A current pulse of 10 ms duration is demonstrated and shows good agreement with the simulated performance.

AB - Electric actuators in automotive systems may require a current transducer for control purposes. A low-cost noninvasive transducer design based around a current transformer is described in this paper. The problem of droop in the output signal is addressed by controlling the current transformer's secondary terminal voltage in response to the rate of core flux change. This is detected using a tertiary flux-change sense winding. The circuit is suited for use in high-temperature automotive environments. The bandwidth of the circuit is high, allowing it to be used in peak current mode or hysteresis control schemes. Operation when sensing a 100A current pulse of 10 ms duration is demonstrated and shows good agreement with the simulated performance.

M3 - Conference Contribution (Conference Proceeding)

SN - 9780768018394

SP - 990

EP - 997

BT - SAE 2006 World Congress & Exhibition, Detroit, USA, April 2006

PB - SAE International

ER -

A Low-Cost Current Transducer for Automotive Actuators

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