Power steering apparatus having failure detection device for rotation angle sensors

A power steering apparatus has a steering power assisting system (100) coupled to tire wheels (FW1, FW2) and a variable gear transfer system (200) coupled to a steering wheel (10). The steering power assisting system (100) includes a torsion bar rotation sensor (34) and a first actuator rotation sen...

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Bibliographische Detailangaben
Hauptverfasser:	KOJO, TAKAHIRO, LIMPIBUNTERNG, THEERAWAT, MAKINO, NOBUHIKO, HIDAKA, KENICHIROU
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS TRAILERS TRANSPORTING
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A power steering apparatus has a steering power assisting system (100) coupled to tire wheels (FW1, FW2) and a variable gear transfer system (200) coupled to a steering wheel (10). The steering power assisting system (100) includes a torsion bar rotation sensor (34) and a first actuator rotation sensor (62) to calculate a first pinion angle and a second pinion angle based on the detected rotation angles, respectively. The variable gear transfer system (200) includes a steering sensor (70) and a second actuator rotation sensor (72) to calculate a third pinion angle based on the detected rotation angles. Sensor failure is detected by comparing the calculated first, second and third pinion angles.