GPS Reception

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2014 Volvo XC90, 2013 Volvo XC90, 2012 Volvo XC90, 2011 Volvo XC90, and 2010 Volvo XC90. However, it is still accessible from the selected car via links, so may be relevant.

The GPS unit (option) has the task of receiving satellite signals for determining position. The antenna module (ATM) (16/110) transmits two different position signals on MOST:

a received signal from the GPS satellites. Used by the multimedia module (MMM) (16/108) and the phone module (PHM) (16/60)
a calculated signal. Used by the Phone Module (PHM) (16/60).

The calculated signal is obtained by dead reckoning. The antenna module (ATM) calculates the present position of the car based on the most recent GPS-signal. The control module receives information about direction and speed from the brake control module (BCM) and central electronic module (CEM) via the infotainment module (ICM) (16/1) to calculate the present position.