Apple inc. (20250085765). Prevention of Unexpected Shutdown

Prevention of Unexpected Shutdown

Organization Name

apple inc.

Inventor(s)

Chee Lim Nge of Cupertino CA (US)

Peter Hyungrok Sung of Santa Clara CA (US)

Douglas A. Mackay of San Mateo CA (US)

Diwakar N. Tundlam of Saratoga CA (US)

Jun Hou of San Jose CA (US)

Tu Le of Los Gatos CA (US)

Vishal Gupta of Sunnyvale CA (US)

Ning Tian of San Jose CA (US)

Daniele Perretta of Redwood City CA (US)

Bo Zhou of Santa Clara CA (US)

Michael Eng of San Jose CA (US)

Prevention of Unexpected Shutdown

This abstract first appeared for US patent application 20250085765 titled 'Prevention of Unexpected Shutdown

Original Abstract Submitted

systems and methods are disclosed for allocating and distributing power management budgets for subsystems of a computer system. for each of a plurality of subsystems, a power management system may generate a long-term power budget and a closed-loop power budget, and then determine a final power budget to provide to the subsystem, e.g., by applying a min function, a weighted sum, or some other function to the long-term power budget and the closed-loop power budget. the closed-loop power budget is determined based on observations of power draw over a past period of time, and therefore cannot respond immediately to large changes in power. the long-term power budget is generated based on a prediction of battery capability over an upcoming window of time, and may therefore provide a power cap before the system is under duress.