Electric power steering apparatus and electricity supply system

Details Electric power steering apparatus and electricity supply system Electric power steering apparatus and electricity supply system

2007-02-13

2007-02-13

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Constant motor current, load and/or torque control

C318S139000

Reexamination Certificate

active

11252785

ABSTRACT:
A transformer section transforms a primary voltage and outputs secondary voltage. A control section inputs a first signal indicating a state of electricity supply of a primary power source through an in-vehicle network. The transformer section outputs a second signal indicating a state of electricity supply of the transformer section. When the input of the first signal is disrupted, the control section limits the driving electricity supplied to the steering motor based on at least one of a value of the secondary voltage and the electricity supply state of the transformer section indicated by the second signal. Accordingly, driving electricity is stably supplied with the steering motor with a simple configuration even if the input of the first signal is disrupted due to a failure in the in-vehicle network.

REFERENCES:
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patent: 6795756 (2004-09-01), Zhang et al.
patent: 6973992 (2005-12-01), Yoneda et al.
patent: 2004/0164560 (2004-08-01), Odahara et al.
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patent: 2005/0077867 (2005-04-01), Cawthorne et al.
patent: 1 322 028 (2003-06-01), None
patent: 2002-186120 (2002-06-01), None
patent: WO 03/004315 (2003-01-01), None

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