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Fuel injection WIP - map only suitable for warm idle

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Steve Howes
2018-09-15 15:38:27 +01:00
parent 8c08af2458
commit 23293422cc
9 changed files with 125 additions and 26 deletions
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ECU.ino
+10
View File
@@ -19,6 +19,16 @@ void setup() {
digitalWrite(pin_coil1, LOW); digitalWrite(pin_coil1, LOW);
digitalWrite(pin_coil2, LOW); digitalWrite(pin_coil2, LOW);
pinMode(pin_injector1, OUTPUT);
pinMode(pin_injector2, OUTPUT);
pinMode(pin_injector3, OUTPUT);
pinMode(pin_injector4, OUTPUT);
digitalWrite(pin_injector1, LOW);
digitalWrite(pin_injector2, LOW);
digitalWrite(pin_injector3, LOW);
digitalWrite(pin_injector4, LOW);
// Set up serial speed etc and do intro output // Set up serial speed etc and do intro output
debug_setup(); debug_setup();
battery.ino
+1 -1
View File
@@ -8,7 +8,7 @@ void battery_init()
{ {
Serial.println("ERR: Battery low"); Serial.println("ERR: Battery low");
} }
else if(battery_voltage_value > 14) else if(battery_voltage_value > 15)
{ {
Serial.println("ERR: Battery high"); Serial.println("ERR: Battery high");
} }
cas.ino
+20
View File
@@ -69,6 +69,7 @@ void cas_process()
// If we're out of sync, we kill ignition for a bit for now. Same if we're at crazy RPM // If we're out of sync, we kill ignition for a bit for now. Same if we're at crazy RPM
if((cas_sync_fail == 0) && (rpm_limited == 0)) if((cas_sync_fail == 0) && (rpm_limited == 0))
{ {
// Igntion
if((cylinder_next_fire == 1) || (cylinder_next_fire == 4)) if((cylinder_next_fire == 1) || (cylinder_next_fire == 4))
{ {
task_coil1_fire = micros() + (usec_per_degree * (180 + ignition_offset - table_ignition[rpm_current_index + (map_current_index << 4)])); task_coil1_fire = micros() + (usec_per_degree * (180 + ignition_offset - table_ignition[rpm_current_index + (map_current_index << 4)]));
@@ -78,6 +79,25 @@ void cas_process()
task_coil2_fire = micros() + (usec_per_degree * (180 + ignition_offset - table_ignition[rpm_current_index + (map_current_index << 4)])); task_coil2_fire = micros() + (usec_per_degree * (180 + ignition_offset - table_ignition[rpm_current_index + (map_current_index << 4)]));
task_coil2_charge = task_coil2_fire - (coil_dwell + table_dwell_voltage[battery_voltage_index] + table_dwell_rpm[rpm_current_index]); task_coil2_charge = task_coil2_fire - (coil_dwell + table_dwell_voltage[battery_voltage_index] + table_dwell_rpm[rpm_current_index]);
} }
// Injection
if(cylinder_next_fire == 1)
{
task_injector1_close = micros() + (usec_per_degree * (360 + ignition_offset + 130));
task_injector1_open = task_injector1_close - table_pulsewidth[rpm_current_index + (map_current_index << 4)];
}else if(cylinder_next_fire == 2)
{
task_injector2_close = micros() + (usec_per_degree * (360 + ignition_offset + 130));
task_injector2_open = task_injector2_close - table_pulsewidth[rpm_current_index + (map_current_index << 4)];
}else if(cylinder_next_fire == 3)
{
task_injector3_close = micros() + (usec_per_degree * (360 + ignition_offset + 130));
task_injector3_open = task_injector3_close - table_pulsewidth[rpm_current_index + (map_current_index << 4)];
}else if(cylinder_next_fire == 4)
{
task_injector4_close = micros() + (usec_per_degree * (360 + ignition_offset + 130));
task_injector4_open = task_injector4_close - table_pulsewidth[rpm_current_index + (map_current_index << 4)];
}
} }
} }
} }
data.h
+1 -2
View File
@@ -13,8 +13,7 @@ const int rpm_range_min = 0; // Index 0
const int rpm_range_max = 7200; // Index 15 const int rpm_range_max = 7200; // Index 15
byte rpm_current_index = 0; // Table index of current RPM byte rpm_current_index = 0; // Table index of current RPM
int rpm_current_value = 0; // Current engine RPM int rpm_current_value = 0; // Current engine RPM
int usec_per_degree = 0; // uSec per degree of rotation at current RPM unsigned long usec_per_degree = 0; // uSec per degree of rotation at current RPM
//unsigned long usec_per_degree = 0;
// Cam Angle Sensor // Cam Angle Sensor
unsigned long cas_sgt_lastrise = 0; // micros() of the last rise unsigned long cas_sgt_lastrise = 0; // micros() of the last rise
injection.ino
+10
View File
@@ -0,0 +1,10 @@
void task_injectorx_close_run(int pin)
{
digitalWrite(pin, LOW);
}
void task_injectorx_open_run(int pin)
{
digitalWrite(pin, HIGH);
}
pins.h
+4 -4
View File
@@ -12,10 +12,10 @@ const int pin_map = A3; // IN: Manifold absolute pressure
const int pin_batt = A4; // IN: Battery voltage const int pin_batt = A4; // IN: Battery voltage
//const int pin_o2 = A8; // IN: O2 sensor //const int pin_o2 = A8; // IN: O2 sensor
//const int pin_injector1 = 8; const int pin_injector1 = 8;
//const int pin_injector2 = 9; const int pin_injector2 = 9;
//const int pin_injector3 = 10; const int pin_injector3 = 10;
//const int pin_injector4 = 11; const int pin_injector4 = 11;
const int pin_coil1 = 47; const int pin_coil1 = 47;
const int pin_coil2 = 45; const int pin_coil2 = 45;
schedule.h
+10 -2
View File
@@ -17,7 +17,15 @@ unsigned long task_tach_high = 0; // Ilde
unsigned long task_tach_low = 0; // Idle unsigned long task_tach_low = 0; // Idle
unsigned long task_coil1_charge = 0; // Idle unsigned long task_coil1_charge = 0; // Idle
unsigned long task_coil1_fire = 0; // Idle unsigned long task_coil1_fire = 1; // Looks mad but stops us cooking coils
unsigned long task_coil2_charge = 0; // Idle unsigned long task_coil2_charge = 0; // Idle
unsigned long task_coil2_fire = 0; // Idle unsigned long task_coil2_fire = 1; // Looks mad but stops us cooking coils
unsigned long task_injector1_open = 0; // Idle
unsigned long task_injector1_close = 1; // Idle
unsigned long task_injector2_open = 0; // Idle
unsigned long task_injector2_close = 1; // Idle
unsigned long task_injector3_open = 0; // Idle
unsigned long task_injector3_close = 1; // Idle
unsigned long task_injector4_open = 0; // Idle
unsigned long task_injector4_close = 1; // Idle
schedule.ino
+52
View File
@@ -30,6 +30,58 @@ void schedule_process()
tasks++; tasks++;
} }
// Injector 1
if((task_injector1_close > 0) && (micros() > task_injector1_close))
{
task_injectorx_close_run(pin_injector1);
task_injector1_close = 0;
tasks++;
}else if((task_injector1_open > 0) && (micros() > task_injector1_open))
{
task_injectorx_open_run(pin_injector1);
task_injector1_open= 0;
tasks++;
}
// Injector 2
if((task_injector2_close > 0) && (micros() > task_injector2_close))
{
task_injectorx_close_run(pin_injector2);
task_injector2_close = 0;
tasks++;
}else if((task_injector2_open > 0) && (micros() > task_injector2_open))
{
task_injectorx_open_run(pin_injector2);
task_injector2_open= 0;
tasks++;
}
// Injector 3
if((task_injector3_close > 0) && (micros() > task_injector3_close))
{
task_injectorx_close_run(pin_injector3);
task_injector3_close = 0;
tasks++;
}else if((task_injector3_open > 0) && (micros() > task_injector3_open))
{
task_injectorx_open_run(pin_injector3);
task_injector3_open= 0;
tasks++;
}
// Injector 4
if((task_injector4_close > 0) && (micros() > task_injector4_close))
{
task_injectorx_close_run(pin_injector4);
task_injector4_close = 0;
tasks++;
}else if((task_injector4_open > 0) && (micros() > task_injector4_open))
{
task_injectorx_open_run(pin_injector4);
task_injector4_open= 0;
tasks++;
}
// Only carry on to the lower priority stuff if we did nothing else // Only carry on to the lower priority stuff if we did nothing else
if(tasks > 0) if(tasks > 0)
return; return;
tables.h
+17 -17
View File
@@ -2,23 +2,23 @@
// Y = kPA 250 - 20 // Y = kPA 250 - 20
// Index = [rpm_current_index + (map_current_index << 4)] // Index = [rpm_current_index + (map_current_index << 4)]
// Value = injector base pulse width // Value = injector base pulse width
byte table_pulsewidth[] = { int table_pulsewidth[] = {
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000, 2000
}; };
// X = RPM 0 - 7200 // X = RPM 0 - 7200