1. Evolution of Automotive In-Vehicle Networking
Marc Osajda
Global Automotive Segment Marketing Freescale Semiconductor

2. In-Vehicle Networking complexity
Immobilizer
Glow Plug
Cooling Fan
Lighting L
Steering Column
Rain Sensor
Flaps
Motors
Sunroof
Lighting R
Instrument Cluster
Temp
Wipers
RKE and TPMS Rx
Seat Modules
HVAC
Alarm
Rear Module
Rear Lighting
Door Module
Radio
Nav
Transmission
Fuel Pump
Airbag
Occupant Classification
Pass. Seat Belt Pretensioner
Driver Seat Belt Pretensioner
Sensor Cluster
Battery Management
SJB
4x4
Blind Spot Detection
Amplifier
Video
Display
Body Controller / Gateway
Chassis Management
Engine Management
Power Steering
Anti-lock Braking
Adaptive Cruise Control
Park Assist
Suspension
Active Steering
NOX
Blower
1996 Typical Vehicle: 6 ECUs
2009 High-End Vehicle: > 70 ECUs 2

3. Vehicle E/E Architecture Challenges
Too complex, too much energy consumption
Too many different networks
Too many ECUs
Too many cables
Too many connectors
Too much weight
Too many too many…
With further electrification of the vehicles,
A global rethinking of the vehicle E/E architecture is needed

4. New trends in In-Vehicle Networking Architecture
C2X
Vehicle
Diagnostic/Access
Central Switch/
Gateway
Ethernet
Main
Engine Controller
Main Chassis Controller
Main
ADAS Controller
Infotainment
Controller
Main
Body Controller
Transmission
Stability
Control
Reverse
Camera
HMI
Satellite
Body
Satellite 1
Energy
Management
Chassis
Satellite 1
Park Assist
Camera
Telephone
Body
Satellite 2
Chassis
Satellite 2
Infotainment
Satellite 1
CAN
Blind Spot
Detection
Body
Satellite 3
FlexRay
LDW
Ethernet/MOST
Body
Satellite 4
Ethernet
LIN
Higher ECU integration and emergence of domain controller will create new challenges in terms of functional safety (ISO26262)
CAN

5. Architectural Evolution – Ethernet in Automotive
Why Ethernet in Vehicles ?
Well known technology, Widespread knowledge, Wide availability of tools
Ethernet can handle future bandwidth requirements for multiple in-vehicle application
Unshielded twisted pair Ethernet based network significantly reduces cost
Unified Ethernet architecture eases diagnosis and maintenance
Ethernet AVB audio profiles can substitute synchronous MOST

6. Example: Ethernet Based High-End Infotainment Network Architecture
Ethernet AVB for Infotainment
Rear Seat Entertainment
Peripheral Functions and Upgrade Options (Trunk)
NAND flash
NAND flash
Comm/ Telematics
Nav Engine
USB/ IPOD
USB/ IPOD
MCU
MCU
Ethernet AVB
Ethernet AVB
Audio out
Infotainment MPU
Audio out
Audio Amp
Switch
Digital Radio/TV
MCU
MCU
Display
Display
Ethernet AVB
Ethernet AVB
Ethernet AVB
Ethernet
LVDS
Gateway: MCU
Multi-Stream Audio/Control
Dual-Stream Audio/Video
Raw Video
Car Network
Ethernet
Media Server/ Disc Player
Service & Control
Ethernet AVB
Multi-Stream Audio/Video
MCU
Ethernet
Switch
Ethernet
Ethernet AVB
MCU
Service & Control
Service & Control
MCU
SPI
GigE
Ethernet AVB
Cluster: MCU
ADAS: MPU
Infotainment: MPU
Switch
MCU
LVDS
Ethernet AVB
GigE
Raw Video
Dashboard
MCU
Head Unit
Ethernet AVB
MCU
Panorama View
Ethernet AVB
LVDS
Front-View Camera
Raw Video

7. Build on Power Architecture
Example of silicon implementation Freescale MPC5668G – Dedicated Gateway MCU
Build on Power Architecture

8. Objective of the ISO26262 Standard
Functional Safety
Objective of the ISO26262 Standard
Provides and automotive specific risk based approach for determining risk classes (ASIL)
Specify the necessary safety requirements for achieving an acceptable residual risk
Provides confirmation to ensure a sufficient level of safety is being achieved

9. Functional Safety / ISO26262
Functional safety is a key paradigm of next generation electronic vehicle systems
Safety standards are becoming the key enabler for the design of all new electronic application in the vehicle and associated semiconductor development

10. Freescale: No. 1 in Automotive Semiconductors
Freescale Leadership in Driving Standards
First semiconductor supplier to join the AUTOSAR development partnership
Co-founded FlexRayTM Consortium with BMW, DaimlerChrysler and Philips
Founding member of Local Interconnect Network LIN Consortium
Founding member of the DSI protocol, and associated member of the PSI5 consortium (Airbag)
Member of the GENIVI Consortium (Infotainment)
Active member of JASPAR supporting Japanese automotive electronics standardization 10 10 10 10