AUDIO AMPLIFIER [(TYPE-A)]
id1600000010a4
Purpose
Function
On-board diagnostic function
Active engine sound function
Operation
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Active engine sound function
1. When the ignition is switched ON (engine off or on), the PCM sends the engine information and the ignition condition, and the instrument cluster sends vehicle specification information to the audio amplifier via a CAN signal.
2. When the engine information and the specification information for the ignition condition and vehicle are received, the audio amplifier selects the equalizer built into the audio amplifier and sets the frequency output from the speaker.
3. The PCM sends the engine condition signal and acceleration pedal angle, the TCM sends the shift range position, and the instrument cluster sends a driver-side door latch switch on signal and rear door latch switch on signal to the audio amplifier via a CAN signal.
4. The audio amplifier analyzes the engine load conditions, calculates the range of insufficient engine sound, and produces a supplemental signal based on the signal received from the PCM, TCM and instrument cluster.
5. The audio amplifier sends the produced supplemental signal to the front door speaker and the front side speaker.
6. The front door speaker and the front side speaker output a sound for supplementing the engine sound based on the produced supplemental signal sent from the audio amplifier.
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Fail-safe