GPS Receiver Module

The GPS receiver module is also known as the HIP module (Host Independence Positioning).

Location and route of the vehicle are calculated in the navigation system with the data from the GPS receiver module.

This module was already integrated in the head unit with the CCC system. It has the task of converting the signals received from the GPS antenna together with the data from the DSC control unit and yaw rate sensor.

The following information is calculated in the GPS receiver module:

• Longitude
• Latitude
• Altitude above sea level
• Direction (bearing)
• Speed

This information is known as Almanac data and it is transferred to the navigation system for further processing. The Almanac data must be permanently stored for future reference. One of the reasons for this is that it takes a long time for data to be received again from satellites after switching to terminal 15 from terminal status ignition "OFF".

This Almanac data ensures the position of the vehicle is recognized immediately after starting the vehicle. Therefore the navigation system can also be used immediately.

Compared to the GPS receiver module of the Car Communication Computer the GPS receiver module in the CIC has been greatly reduced in size while maintaining the same functionality.

The graphic shows the size of the GPS receiver module compared to the main connection plug of the head unit.

Fig 1: CIC System's GPS Receiver Size Compared To Main Connector

Courtesy of BMW OF NORTH AMERICA, INC.