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| author | Patrick Venture <venture@google.com> | 2018-03-08 08:21:38 -0800 |
|---|---|---|
| committer | Patrick Venture <venture@google.com> | 2018-03-08 08:23:45 -0800 |
| commit | d80121817bb771b305f1db6aacc3ad71611a3e58 (patch) | |
| tree | 1cd48911f32fa665185cd3f6c32f0da565c514a7 /pid/README | |
| parent | a788899e4747960914ed850fa7155981b9cb9de7 (diff) | |
| download | phosphor-pid-control-d80121817bb771b305f1db6aacc3ad71611a3e58.tar.gz phosphor-pid-control-d80121817bb771b305f1db6aacc3ad71611a3e58.zip | |
PID Objects & Algo
These are the PID controller implementations for fans,
and thermals. This also includes the PID algorithm used.
Change-Id: I30471fbf7a8a7ed65f78bf105970d62815fedc56
Signed-off-by: Patrick Venture <venture@google.com>
Diffstat (limited to 'pid/README')
| -rw-r--r-- | pid/README | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/pid/README b/pid/README new file mode 100644 index 0000000..93e48f3 --- /dev/null +++ b/pid/README @@ -0,0 +1,11 @@ +ThermalControllers and FanControllers are derived objects from a common PID +Controller object. The design implemented in this structure is a facsimile of +what was published in the Chrome OS source. + +One has any number of ThermalControllers that run through a PID step to +generate a set-point RPM to reach its thermal set-point. The maximum ouput +from the set of ThermalControllers is taken as the input to all the +FanController PID loops. + +Each group of these controllers is managed within a zone. A PIDZone object +helps manage them by providing a sensor value cache and overall execution. |
