Solenoid settings
Control enable
Specifies how the function is enabled.
•Always active - Closed-loop boost control is enabled at all times, regardless of engine RPM, target boost, or digital input. Use with cautio, intended only for advanced users or testing purposes, since it may cause the boost solenoid to operate even when the engine is off or no boost is requested.
•Always when engine is running - Closed-loop boost control is automatically enabled whenever the engine is considered running.
•target boost above 0 - This prevents the boost solenoid from being activated when no boost is requested, such as during idle, cruise, or off-throttle conditions. Helps avoid unnecessary solenoid activity and improves system stability..
•with digital input - Enables closed-loop boost control only when the Boost Control Enable digital input is active. This allows the user to externally control when closed-loop regulation is allowed, commonly used with a switch, button, or output from another control system. Useful for drag racing, launch control, or manual override strategies.
frequency/limits
Controls how solenoid duty is limited based on the current PWM frequency.
•fixed - Uses a single, static PWM frequency for the boost control solenoid.
•tables - The PWM frequency is dynamically selected from a table. Because solenoid behavior changes with frequency, the system uses corresponding duty limit tables to ensure reliable operation
This prevents the ECU from commanding duty cycles that are too low to move the solenoid (wasted output) or too high for safe operation at certain frequencies. Ensures stable and responsive boost control across a wide range of operating conditions.
Solenoid frequency
solenoid PWM frequency
Uses a single, static PWM frequency for the boost control solenoid.
solenoid deadtime
Compensates for the response delay (deadtime) in the boost control solenoid. Most solenoids require a minimum on-time to begin reacting. This delay is frequency-dependent and can lead to under-boost if not corrected.
Use this setting to improve low-duty response and maintain accurate boost control across all conditions.
Note: Deadtime compensation is disabled when using Predefined solenoid mode, change to user defined.
Solenoid duty
off below duty
Disables the solenoid completely if the calculated duty falls below a defined minimum threshold. Prevents the solenoid from being pulsed with very low duty cycles that have no effect or may cause noise or wear. Ensures the solenoid only operates when the output is strong enough to produce meaningful control.
max duty
Limits the maximum allowed duty cycle to the boost control solenoid. Prevents overdriving the solenoid, which could lead to mechanical stress, overheating, or excessive boost. This value acts as a safety cap to ensure the duty output stays within safe operating limits.
