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VSP-20 < SYSTEM DESCRIPTION > SYSTEM REVERSE SOUND The reverse sound is a function that operates when the selector lever is in the “R” position. Operation Description • The VCM transmits the following signals to the VSP control unit via CAN communication. - Shift position signal - READY to drive indicator lamp request signal • The VSP control unit judges that the reverse sound is necessary according to the signals received from the VCM. • When the VSP control unit judges that operation of the reverse sound is necessary, it transmits the VSP speaker signal to the VSP speaker. Operation Condition The reverse sound operates when all of the following conditions are met. Operation Stop Condition The reverse sound operation stops when any of the following conditions is met. Signal Path • The VSP control unit judges that the reverse sound is necessary according to the following signals, and operates the reverse sound. • When the VSP control unit judges that the reverse sound is necessary, it transmits the following signal. No. Description When accelerating, the driving sound operates up to approximately 30 km/h (19 MPH). When the speed is more than 30 km/h (19 MPH), the driving sound stops. When decelerating, the driving sound operates when the speed is approximately 25 km/h (16 MPH) or less. The driving sound stops when the vehicle is stopped (fades out and stops). Operation condition Selector lever “R” position READY to drive indicator ON Operation stop condition Selector lever Other than “R” position Signal name Signal path READY to drive indicator lamp request signal VCM VSP control unit Shift position signal VCM VSP control unit Signal name Signal path VSP speaker signal VSP control unit VSP speaker |