Torque sensor malfunction diagnostic system

Measuring and testing – Dynamometers – Responsive to torque

Reexamination Certificate

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Details

C073S862326, C073S862328, C073S862331, C073S862332

Reexamination Certificate

active

11032111

ABSTRACT:
A system to diagnose a malfunction of a torque sensor in a vehicle steering system includes a voltage difference generator that outputs a voltage difference by comparing a voltage of a contact part between a temperature correcting coil and a torque detecting coil in a torque sensor for a steering system and an offset voltage generated from an offset voltage generator, a malfunction determining part that determines a malfunction by comparing a reference voltage and an output voltage of said voltage difference generator, and a controller that executes a neutral steering when a malfunction is determined in said malfunction determining part.

REFERENCES:
patent: 5406834 (1995-04-01), Taniguchi
patent: 5497667 (1996-03-01), Nakaura
patent: 5811695 (1998-09-01), Satoh et al.
patent: 6704665 (2004-03-01), Ueno
patent: 7061229 (2006-06-01), Townsend et al.
patent: 2003/0040872 (2003-02-01), Ueno
patent: 8-68703 (1996-03-01), None
English Language Abstract of JP 8-68703.
U.S. Appl. No. 10/975,334, to Whang, filed Oct. 29, 2004.

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