Add full automotive RTOS project
Add kernel (Cortex-M0/M3/M4, Tricore, S32K, RISC-V ports), drivers, middleware (CAN stack, diagnostics, safety), applications, board support, build/test tooling, and documentation.
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/**
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* @file engine_control.h
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* @brief Engine control module interface
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*/
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#ifndef ENGINE_CONTROL_H
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#define ENGINE_CONTROL_H
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#include "kernel.h"
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#include "engine_parameters.h"
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/* Engine Control Functions */
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KernelStatus_t engine_control_init(void);
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KernelStatus_t engine_control_start(void);
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KernelStatus_t engine_control_stop(void);
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KernelStatus_t engine_control_get_sensor_data(EngineSensorData_t* data);
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KernelStatus_t engine_control_get_actuator_data(EngineActuatorData_t* data);
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KernelStatus_t engine_control_set_actuator_data(const EngineActuatorData_t* data);
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EngineState_t engine_control_get_state(void);
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KernelStatus_t engine_control_get_faults(EngineFaultCode_t* faults,
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uint8_t* count);
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KernelStatus_t engine_control_clear_faults(void);
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void engine_control_task(void* parameters);
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void fuel_injection_task(void* parameters);
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void ignition_control_task(void* parameters);
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void sensor_reading_task(void* parameters);
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#endif /* ENGINE_CONTROL_H */
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/**
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* @file engine_parameters.h
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* @brief Engine control parameters and calibration data
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*/
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#ifndef ENGINE_PARAMETERS_H
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#define ENGINE_PARAMETERS_H
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#include <stdint.h>
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/* Engine Operating Parameters */
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#define ENGINE_MAX_RPM 6500
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#define ENGINE_IDLE_RPM 800
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#define ENGINE_REDLINE_RPM 6000
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#define ENGINE_MAX_TORQUE_RPM 4000
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#define ENGINE_MAX_POWER_RPM 5500
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/* Temperature Limits */
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#define ENGINE_MAX_COOLANT_TEMP 120 /* °C */
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#define ENGINE_MIN_COOLANT_TEMP -40 /* °C */
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#define ENGINE_OPTIMAL_TEMP 90 /* °C */
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#define ENGINE_MAX_OIL_TEMP 150 /* °C */
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#define ENGINE_MAX_INTAKE_TEMP 80 /* °C */
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/* Pressure Limits */
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#define ENGINE_MAX_MANIFOLD_PRESSURE 250 /* kPa */
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#define ENGINE_MIN_OIL_PRESSURE 100 /* kPa */
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#define ENGINE_MAX_FUEL_PRESSURE 500 /* kPa */
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/* Fuel System Parameters */
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#define FUEL_STOICHIOMETRIC_RATIO 14.7f
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#define FUEL_MAX_INJECTION_TIME 20.0f /* ms */
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#define FUEL_MIN_INJECTION_TIME 0.5f /* ms */
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#define FUEL_INJECTOR_FLOW_RATE 250.0f /* cc/min */
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/* Ignition Parameters */
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#define IGNITION_MAX_ADVANCE 45.0f /* degrees BTDC */
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#define IGNITION_MIN_ADVANCE -10.0f /* degrees ATDC */
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#define IGNITION_BASE_ADVANCE 10.0f /* degrees BTDC */
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#define IGNITION_DWELL_TIME 3.5f /* ms */
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/* Control Loop Parameters */
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#define ENGINE_CONTROL_PERIOD_MS 1 /* 1ms control loop */
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#define FUEL_CONTROL_PERIOD_MS 10 /* 10ms fuel update */
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#define IGNITION_CONTROL_PERIOD_MS 5 /* 5ms ignition update */
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#define SENSOR_READ_PERIOD_MS 2 /* 2ms sensor reading */
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/* PID Controller Gains */
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typedef struct {
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float kp;
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float ki;
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float kd;
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float integral_limit;
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float output_limit;
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} PidGains_t;
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/* Fuel Control PID */
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static const PidGains_t fuel_pid_gains = {
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.kp = 0.5f,
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.ki = 0.1f,
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.kd = 0.05f,
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.integral_limit = 100.0f,
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.output_limit = 100.0f
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};
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/* Idle Control PID */
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static const PidGains_t idle_pid_gains = {
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.kp = 0.8f,
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.ki = 0.2f,
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.kd = 0.1f,
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.integral_limit = 50.0f,
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.output_limit = 100.0f
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};
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/* Boost Control PID */
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static const PidGains_t boost_pid_gains = {
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.kp = 0.3f,
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.ki = 0.05f,
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.kd = 0.02f,
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.integral_limit = 200.0f,
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.output_limit = 250.0f
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};
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/* Engine State Enumeration */
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typedef enum {
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ENGINE_STATE_OFF = 0,
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ENGINE_STATE_CRANKING = 1,
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ENGINE_STATE_RUNNING = 2,
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ENGINE_STATE_IDLE = 3,
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ENGINE_STATE_ACCELERATING = 4,
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ENGINE_STATE_DECELERATING = 5,
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ENGINE_STATE_FAULT = 6,
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ENGINE_STATE_LIMP_HOME = 7
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} EngineState_t;
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/* Engine Sensor Data */
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typedef struct {
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uint16_t rpm;
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uint16_t vehicle_speed;
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int16_t coolant_temp;
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int16_t intake_air_temp;
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int16_t oil_temp;
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uint16_t manifold_pressure;
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uint16_t oil_pressure;
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uint16_t fuel_pressure;
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uint16_t throttle_position;
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uint16_t accelerator_pedal;
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float mass_air_flow;
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float lambda;
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float battery_voltage;
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} EngineSensorData_t;
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/* Engine Actuator Data */
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typedef struct {
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uint16_t injector_pulse_width;
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float ignition_advance;
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uint16_t idle_air_control;
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uint16_t boost_control;
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uint16_t fuel_pump_duty;
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uint16_t cooling_fan_duty;
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} EngineActuatorData_t;
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/* Engine Fault Codes */
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typedef enum {
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ENGINE_FAULT_NONE = 0,
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ENGINE_FAULT_COOLANT_TEMP_SENSOR = 1,
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ENGINE_FAULT_INTAKE_TEMP_SENSOR = 2,
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ENGINE_FAULT_MANIFOLD_PRESSURE_SENSOR = 3,
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ENGINE_FAULT_MAF_SENSOR = 4,
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ENGINE_FAULT_OXYGEN_SENSOR = 5,
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ENGINE_FAULT_KNOCK_SENSOR = 6,
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ENGINE_FAULT_CRANKSHAFT_SENSOR = 7,
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ENGINE_FAULT_CAMSHAFT_SENSOR = 8,
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ENGINE_FAULT_INJECTOR_1 = 9,
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ENGINE_FAULT_INJECTOR_2 = 10,
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ENGINE_FAULT_INJECTOR_3 = 11,
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ENGINE_FAULT_INJECTOR_4 = 12,
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ENGINE_FAULT_IGNITION_COIL = 13,
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ENGINE_FAULT_FUEL_PUMP = 14,
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ENGINE_FAULT_OVERHEAT = 15,
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ENGINE_FAULT_LOW_OIL_PRESSURE = 16
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} EngineFaultCode_t;
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/* Lookup Tables */
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typedef struct {
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const uint16_t* rpm_points;
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const uint16_t* load_points;
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const uint16_t* values;
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uint8_t rpm_count;
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uint8_t load_count;
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} LookupTable2D_t;
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/* Fuel Map (injection time in microseconds) */
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static const uint16_t fuel_map_rpm[] = {0, 500, 1000, 2000, 3000, 4000, 5000, 6000};
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static const uint16_t fuel_map_load[] = {0, 20, 40, 60, 80, 100};
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static const uint16_t fuel_map_values[][8] = {
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{0, 1000, 800, 700, 650, 600, 550, 500},
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{1000, 1500, 1300, 1200, 1100, 1000, 950, 900},
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{2000, 2500, 2200, 2000, 1800, 1700, 1600, 1500},
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{3000, 3500, 3200, 3000, 2800, 2600, 2400, 2200},
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{4000, 4500, 4200, 4000, 3800, 3600, 3400, 3200},
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{5000, 5500, 5200, 5000, 4800, 4600, 4400, 4200}
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};
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/* Ignition Advance Map (degrees BTDC) */
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static const uint16_t ignition_map_rpm[] = {0, 500, 1000, 2000, 3000, 4000, 5000, 6000};
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static const uint16_t ignition_map_load[] = {0, 20, 40, 60, 80, 100};
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static const int16_t ignition_map_values[][8] = {
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{10, 12, 15, 18, 20, 22, 25, 28},
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{10, 12, 15, 18, 20, 22, 25, 28},
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{8, 10, 13, 16, 18, 20, 23, 26},
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{6, 8, 11, 14, 16, 18, 21, 24},
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{4, 6, 9, 12, 14, 16, 19, 22},
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{2, 4, 7, 10, 12, 14, 17, 20}
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};
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#endif /* ENGINE_PARAMETERS_H */
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