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US Patent 12077054 Vehicle main contactor weld detection system

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Contents

Is a
Patent
Patent
0

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
120770540
Patent Inventor Names
Benjamin A. Tabatowski-Bush0
Baojin Wang0
Wesley Edward Burkman0
John Paul Gibeau0
Date of Patent
September 3, 2024
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Patent Application Number
173318360
Date Filed
May 27, 2021
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Patent Citations
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US Patent 9260015 Method and system for contactor weld detection
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US Patent 9500691 Apparatus and method for detecting disconnnection of lamps
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US Patent 9513681 Systems and methods for controlling inrush electrical currents using a virtual miller capacitor and a metal-oxide-semiconductor field-effect transistor (MOSFET)
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US Patent 9796288 Bus pre-charge with vehicle power converter
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US Patent 10516189 High voltage bus contactor fault detection
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US Patent 10639998 Service disconnect notification strategy
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US Patent 11299056 System and method for charger contactor double weld detection
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US Patent 10967754 Electrified vehicle contactor status
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...
Patent Primary Examiner
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M Baye Diao
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CPC Code
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B60L 2260/44
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Y02T 10/70
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B60L 3/0023
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B60L 3/04
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B60L 3/0046
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B60L 3/12
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B60L 15/22
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Patent abstract

A vehicle includes a controller that, responsive to data indicating a voltage associated with an inrush current through a main contactor exceeds a first threshold, commands the main contactor to open and inhibits the vehicle from being driven, and responsive to data indicating the voltage exceeds a second threshold less than the first threshold, commands the main contactor to sequentially open and then close.

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