Torque detection system and electric power steering apparatus

A torque detection system that is less likely to affect external equipment is provided. A sensor IC (70) in a torque detection device (40) includes: a magnetic detection element (81) with its output voltage changing in magnitude in accordance with the amount of twist of a torsion bar; and a processi...

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Bibliographische Detailangaben
1. Verfasser:	KANAME AOKI
Format:	Patent
Sprache:	eng
Schlagworte:	LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MOTOR VEHICLES PERFORMING OPERATIONS PHYSICS TESTING TRAILERS TRANSPORTING
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Beschreibung
Zusammenfassung:	A torque detection system that is less likely to affect external equipment is provided. A sensor IC (70) in a torque detection device (40) includes: a magnetic detection element (81) with its output voltage changing in magnitude in accordance with the amount of twist of a torsion bar; and a processing device (85) that converts the output voltage into an output signal switched between a low level L and a high level H. The processing device includes a signal generation device (87) that forms inflection points P1 to P4 in order to reduce a change speed during a rising period T1 when the output signal is switched from the low level L to the high level H or a change speed during a falling period T3 when the output signal is switched from the high level H to the low level L.