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US Patent 11959315 Latch assembly with hybrid backup energy source

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Contents

Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
119593151
Patent Inventor Names
Olivier Trescases1
Vishal Palaniappan1
Miad Fard1
Date of Patent
April 16, 2024
1
Patent Application Number
176048841
Date Filed
May 19, 2020
1
Patent Citations
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US Patent 10378251 Electronic latch of a motor-vehicle closure device, provided with an improved backup energy source
1
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US Patent 10480222 Door latching device and moving body mounted with same
1
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US Patent 11053714 Door latch power supply device, door latch power supply system, and vehicle using same
1
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US Patent 7287785 Side door latch pawl function augmentation
1
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US Patent 7642669 Electrical circuit arrangement
1
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US Patent 7791218 E-latch with microcontroller onboard latch and integrated backup sensor
1
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US Patent 8376416 Latch system for a door of an automobile
1
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US Patent 9518408 Alternate backup entry for vehicles
1
...
Patent Primary Examiner
‌
Nathan Cumar
1
CPC Code
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H02J 7/342
1
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H02J 9/00
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H02J 9/061
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H01G 11/00
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H01G 11/12
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H01M 10/00
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H01M 10/44
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H01M 10/441
1
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Patent abstract

A latch assembly for a closure panel and corresponding method of operation are provided. The assembly includes an actuation group to latch and unlatch the closure panel using power from a main power source during normal operation. A first backup energy source is selectively coupled to the actuation group and stores energy during normal operation and supplies the energy during a failure. A second backup energy source is selectively coupled to the first backup energy source and supplies energy thereto during the failure. A latch controller is coupled to the backup energy sources and detects latch operation and whether there is normal operation. The latch controller charges the first backup energy source using energy from the second backup energy source based on the detection of latch operation and the failure and disconnects the second backup energy source during normal operation to conserve energy stored in the second backup energy source.

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