Amazon Technologies, Inc.

Atieva, Inc.

Martin Helliwell

Rakesh Kulangara

Cyrille Habis

Steven Diamond

Gabriel C Risk

Stanley Hu

Albert Shih-Young Liu

A battery pack management system adjusts the relative state-of-charge of respective battery blocks in a battery pack to equalize (i.e., align, balance or otherwise make similar) the peak battery block voltages (i.e., maximum or 'upper peak' battery block voltages when the battery pack is being charged and/or minimum or 'lower peak' battery block voltages when the battery is being discharged). Upon detecting an anomalous battery block that exhibits outlier upper and lower peak voltages, the battery pack management system adjusts the relative state of charge of respective battery blocks to center their respective upper and lower peak voltages between operating limits, thus maximizing the operating margin of the battery pack as a whole.

Battery state-of-charge estimation

A leak detection system may be configured to receive a plurality of memory use reports periodically from a user device. The memory use reports may include an indication of memory that may be used and/or allocated by/to a particular process, such as a process that may currently be running on the user device. The memory use report may further provide a relatively granular view of the allocation of memory associated with the process, such as by type of memory and/or category of memory associated with the process. The leak detection system may use the plurality of memory use reports to generate a memory profile associated with the process and particular memory types and/or categories of memory allocation. By analyzing the memory profiles, the leak detection system may be configured to identify a memory leak associated with the process on the user device.

Process level memory allocation by memory type

Memory leak detection

Growing community of inventors

Morgan Hill, CA, United States of America

Martin Helliwell