mirror of https://github.com/rusefi/rusefi-1.git
26 lines
777 B
C++
26 lines
777 B
C++
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/**
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* @file hip9011_lookup.cpp
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*
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* @date Jan 4, 2015
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* @author Andrey Belomutskiy, (c) 2012-2014
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*/
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#include "hip9011_lookup.h"
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/**
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* These are HIP9011 magic values - integrator time constants in uS
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*/
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const int integratorValues[INT_LOOKUP_SIZE] = { 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100, 110, 120, 130, 140, 150,
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160, 180, 200, 220, 240, 260, 280, 300, 320, 360, 400, 440, 480, 520, 560, 600 };
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/**
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* 'TC is typically TINT/(2*Pi*VOUT)'
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* Knock Sensor Training TPIC8101, page 24
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*/
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float getRpmByAngleWindowAndTimeUs(int timeUs, float angleWindowWidth) {
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float windowWidthMult = angleWindowWidth / 360.0f;
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// '60000000' because revolutions per MINUTE in uS conversion
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return 60000000.0f / (timeUs * 2 * PIF * DESIRED_OUTPUT_VALUE * windowWidthMult);
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}
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