Connection And Communication

Vehicles without telematics functionality 

The Vehicle Connectivity Module (VCM) is a CAN master and connected to the Telematics Module (TEM) via USB. The control module also acts as a router for broadband connection via the Telematics Module (TEM).

The Vehicle Connectivity Module (VCM) consists of two processors:

1. The router CPU (RCPU) communicates with all the IP-networks that the VCM is connected to, for example when the connection takes place via Diagnostics over IP (DoIP) or between the Infotainment Head Unit (IHU), Audio Module (AUD), and Vehicle Connectivity Module (VCM).

   The RCPU also manages the WiFi functionality, the connectivity part in the VCM, and the internet traffic for all connection sources except Bluetooth (which is handled by the IHU).

2. The vehicle CPU (VCPU) is connected to the FlexRay, Body CAN and Propulsion/Diagnostic CAN and manages all the gateway functionality in the Vehicle Connectivity Module (VCM).

Vehicles Connectivity Module (VCM) with built-in telematics functionality 

The telematics functionality is integrated in the Vehicle Connectivity Module (VCM). The control module is connected to the Infotainment Head Unit (IHU) via Ethernet.

The Vehicle Connectivity Module (VCM) is an upstart control module on the FlexRay network.

The Vehicle Connectivity Module (VCM) consists of three processors:

1. The router CPU (RCPU) communicates with all the IP-networks that the VCM is connected to, for example when the connection takes place via Diagnostics over IP (DoIP) or between the Infotainment Head Unit (IHU), Audio Module (AUD), and Vehicle Connectivity Module (VCM).

   The RCPU also manages the WiFi functionality, the connectivity part in the VCM, and the internet traffic for all connection sources except Bluetooth (which is handled by the IHU).

2. The vehicle CPU (VCPU) is connected to the FlexRay, Body CAN and Propulsion/Diagnostic CAN and manages all the gateway functionality in the Vehicle Connectivity Module (VCM).
3. The telematics CPU (TCPU) handles all telematics related functions, such as Volvo On Call (VOC). The Telematics CPU (TCPU) is connected to the modem in the Vehicle Connectivity Module (VCM).