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This commit is contained in:
rusEfi 2014-12-05 15:03:30 -06:00
parent debb9e8def
commit 1a06f11c44
3 changed files with 42 additions and 1 deletions
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6
firmware/controllers/algo/engine_configuration.cpp
View File

@ -331,6 +331,12 @@ void setDefaultConfiguration(engine_configuration_s *engineConfiguration, board_
engineConfiguration->isWaveAnalyzerEnabled = true;
engineConfiguration->isIdleThreadEnabled = true;
engineConfiguration->acIdleRpmBump = 200;
engineConfiguration->knockDetectionWindowStart = 35;
engineConfiguration->knockDetectionWindowEnd = 135;
/**
* this is RPM. 10000 rpm is only 166Hz, 800 rpm is 13Hz
*/

5
firmware/controllers/algo/engine_configuration.h
View File

@ -524,7 +524,10 @@ typedef struct {
adc_channel_e vRefAdcChannel;
int unused3[87];
float knockDetectionWindowStart;
float knockDetectionWindowEnd;
int unused3[85];
} engine_configuration_s;

32
firmware/hw_layer/HIP9011.cpp
View File

@ -86,6 +86,38 @@ static msg_t ivThread(int param) {
EXTERN_ENGINE
;
#define INT_TIME_COUNT 32
/**
* These are HIP9011 magic values - integrator time constants in uS
*/
static const int integratorValues[INT_TIME_COUNT] = { 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100, 110, 120, 130, 140,
150, 160, 180, 200, 220, 240, 260, 280, 300, 320, 360, 400, 440, 480, 520, 560, 600 };
#define PIF 3.14159f
static float rpmLookup[INT_TIME_COUNT];
/**
* 'TC is typically TINT/(2*Pi*VOUT)'
* Knock Sensor Training TPIC8101, page 24
*
* We know the set of possible integration times, we know the knock detection window width
*
* 2.2 volts should
*
*/
#define DESIRED_OUTPUT_VALUE 2.2f
static void prepareRpmLookup(engine_configuration_s *engineConfiguration) {
for (int i = 0; i < INT_TIME_COUNT; i++) {
float windowWidthMult = (engineConfiguration->knockDetectionWindowEnd
- engineConfiguration->knockDetectionWindowStart) / 360.0f;
// '60000000' because revolutions per MINUTE in uS conversion
rpmLookup[i] = 60000000.0f / (integratorValues[i] * 2 * PIF * DESIRED_OUTPUT_VALUE * windowWidthMult);
}
}
void initHip9011(void) {
if (!boardConfiguration->isHip9011Enabled)
return;