公开(公告)号：US10168748B2

公开(公告)日：2019-01-01

申请号：US15074396

申请日：2016-03-18

申请人： Dell Products L.P.

发明人： Hasnain Shabbir ,  Dominick A. Lovicott ,  Carlos G. Henry

IPC分类号： H05K7/20 ,  G06F1/20

摘要： A system may include a plurality of temperature sensors configured to sense temperatures at a plurality of locations associated with an information handling system, a cooling subsystem comprising at least one cooling fan configured to generate a cooling airflow in the information handling system, and a thermal manager communicatively coupled to the plurality of temperature sensors and the cooling subsystem. The thermal manager may be configured to, based on at least a power provided to a subsystem of the information handling system, estimate a thermal condition proximate to the subsystem and set a speed of the at least one cooling fan based on the estimated thermal condition and a required cubic airflow rate associated with the subsystem, wherein the required cubic airflow rate is determined based on a required linear airflow velocity associated with the subsystem and a net cross-sectional area through which the cooling airflow travels.

公开(公告)号：US10146190B2

公开(公告)日：2018-12-04

申请号：US15141475

申请日：2016-04-28

申请人： Dell Products L.P.

发明人： Dominick A. Lovicott ,  Carlos G. Henry

IPC分类号： G05B11/42 ,  G05D23/19 ,  G06F1/20

摘要： A method may include: (i) based on an error between a setpoint value and a measured process value, determining an integrated error indicative of a time-based integral of the error; (ii) based on the error, determining a differential error indicative of a time-based derivative of the error; (iii) based on the integrated error and the error, generating a proportional-integral output driving signal; (iv) based on the differential error and the error, generating a proportional-differential output driving signal; (v) determining whether the differential error is stable; (vi) responsive to determining that the differential error is stable, generating a driving signal for controlling a plant based on the proportional-differential output driving signal and independent of the proportional-integral output driving signal; (vii) responsive to determining that the differential error is unstable, generating the driving signal for controlling the plant based on the proportional-differential output driving signal and the proportional-integral output driving signal.

公开(公告)号：US20170273215A1

公开(公告)日：2017-09-21

申请号：US15074396

申请日：2016-03-18

申请人： Dell Products L.P.

发明人： Hasnain Shabbir ,  Dominick A. Lovicott ,  Carlos G. Henry

IPC分类号： H05K7/20

CPC分类号： G06F1/20 ,  G06F1/203 ,  H05K7/20836

摘要： A system may include a plurality of temperature sensors configured to sense temperatures at a plurality of locations associated with an information handling system, a cooling subsystem comprising at least one cooling fan configured to generate a cooling airflow in the information handling system, and a thermal manager communicatively coupled to the plurality of temperature sensors and the cooling subsystem. The thermal manager may be configured to, based on at least a power provided to a subsystem of the information handling system, estimate a thermal condition proximate to the subsystem and set a speed of the at least one cooling fan based on the estimated thermal condition and a required cubic airflow rate associated with the subsystem, wherein the required cubic airflow rate is determined based on a required linear airflow velocity associated with the subsystem and a net cross-sectional area through which the cooling airflow travels.