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Electric engine start with two motors and single motor drive



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Patent 7242105
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Document Number
US Patent 7242105
Issued Date
July 10, 2007
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Abstract
An electrical starter-generator system includes a first starter-generator and a second starter-generator. A single drive controls both the first starter-generator and the second starter-generator such that their electrical current and power inputs are minimized and balanced.
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Number of Claims:
11
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Published
July 10, 2007
Application Number
11/205,699
Filed
August 17, 2005
US Classification
290/36R   322/59
Int'l Classification
H02P   9/10   (20060101)  
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Attorney/Law Firm
USPTO Field of Search
290/36R  
Related Patents
7538501 - Power system comprising several synchronous machines synchronously self-controlled by a converter and control method for such a system - Owned by Airbus France (Toulouse,FR) Centre National de la Recherche Scientifique (Paris,FR)

A power system including at least two self-controlled synchronous machines operating in parallel synchronously, a central three-phase converter to which all these machines are connected in parallel, at least two rotor position sensors. The system also includes at least one control module that receives phase currents from each synchronous machine, signals output from position sensors, and a required reference torque value and that powers the three-phase central converter so as to slave the phase currents for each machine as a function of the required reference torque.

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Description
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