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=== PID correction ceiling === '''Brief description''': BMWtchdiag_pct_WgPLo_M '''Dimension''': 2D, table '''Categories''': Boost, WGDC '''Unit info''': hPa, - --> % '''Breakpoints''': PID correction ceiling X (autogen) vs PID correction ceiling Y (autogen) '''Example''': 0 100 200 300 1.0 12.103 11.551 10.449 -0.003 1.4 11.551 10.449 3.299 -0.003 1.6 10.449 3.299 1.099 -0.003 1.8 -0.003 -0.003 -0.003 -0.003 '''Notes''': This is the max upward percentage correction to the boost setpoint (i.e. to the pressure ratio). The x-axis is the amount of ''underboost'' hPa (300 hPa is about 4psi). It is important to note the sign, since it is counterintuitive (a -ve boost deviation is overboost and +ve one is underboost). The y-axis here is claimed to be the current boost setpoint. This is confusing or questionable. The floor and ceiling table y axes form a continuous set of values from 0.4 to 1.8. The correction floor table axis runs from 0.4 to 1.0 while the ceiling table from 1.0 to 1.8. So the ceiling table takes off where floor table stops. It's not clear why that would be. These questions need not hinder progress because valid values are -100% across the entire correction floor table and +99% across the entire correction ceiling table.
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