accumulator pressure control
Accumulator pressure control in an automatic gearbox regulates a dedicated solenoid that adjusts the accumulator damping during idle, low speed, and gearshifts.
At idle or normal driving, the solenoid runs at a set idle duty. If the output shaft speed is near zero, a separate zero-speed duty is applied to stabilize pressure when stationary.
During a shift event, a timer loads duty values from tables, temporarily overriding the baseline duty to control clutch fill and release characteristics. Once the timeout expires, control returns to idle or zero-speed duty.
The solenoid is always driven at a fixed PWM frequency defined in configuration.
Enable control
Enable or disables the accumulator pressure control.
solenoid frequency
Used solenoid frequency, specified in Hz.
solenoid idle duty
Solenoid duty whenever the moving, but not shifting.
solenoid zero speed duty
Solenoid duty when vehicle is stationary (below 1km/h).
