Adaptive fan speed control for thermal management of a battery
AssigneeBaidu USA LLC
InventorsHuawei YANG, Shuai SHAO, Tianyi GAO
Life of this patent
Estimating the term…
Abstract
A method of controlling a fan speed for a battery unit includes determining power discharge and a current temperature of a battery unit and obtaining a relationship between fan speed for the battery unit and temperature of the battery unit based on the power discharge and the current temperature of the battery unit. The method further includes identifying a minimum fan speed based on the relationship between fan speed and temperature and a maximum operating temperature of the battery unit and controlling the fan by setting the speed of the fan to the minimum fan speed.
Claims20
A method of controlling a fan speed for a battery unit, the method comprising:
- determining power discharge and a current temperature of the battery unit;
- obtaining a relationship between fan speed of a fan for the battery unit and temperature of the battery unit based on the power discharge and the current temperature of the battery unit;
- identifying, by a processing device, a minimum fan speed based on the relationship between fan speed and temperature and a maximum operating temperature of the battery unit;
- and
- controlling the fan by setting the speed of the fan to the minimum fan speed.
A battery backup unit of a server rack comprising:
- a battery to be discharged upon determining that a main power supply is unavailable;
- a fan unit coupled to the battery, wherein the fan unit includes a fan and control logic configured to:
- determine power discharge and a current temperature of the battery;
- obtain a relationship between fan speed and temperature of the battery based on the power discharge and the current temperature of the battery;
- identify a minimum fan speed based on the relationship between fan speed and temperature and a maximum operating temperature of the battery;
- and
- control the fan by setting the fan to the minimum fan speed.
An electronic rack, comprising:
- a plurality of servers arranged in a stack, each server includes at least one processor;
- a main power supply configured to provide power to the servers;
- a battery to be discharged upon determining that the main power supply is unavailable;
- a fan unit coupled to the battery, wherein the fan unit includes a fan and control logic configured to:
- determine power discharge and a current temperature of the battery;
- obtain a relationship between fan speed and temperature of the battery based on the power discharge and the current temperature of the battery;
- identify a minimum fan speed based on the relationship between fan speed and temperature and a maximum operating temperature of the battery;
- and
- control the fan by setting the fan to the minimum fan speed.
Dependencies are inferred from the claim text.