Seamless Solution Hermann Kern Infineon Technologies Kern 15
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In-Vehicle Networks
Seamless Solution
Hermann Kern Infineon Technologies
Kern 15-Mrz-01 Page
System Engineering Automotive
Automotive Systems Automotive Systems
Comfort speed, dual wire kBaud) 11519 CAN-single wire kBaud) high speed 11898 (<125kBaud)
Diagnostic Diagnostic
Diagnostic (ISO 9141) Powertrain MBaud dual wire 11898
Left Door Left Door Module Module
Light Light Module Module
Right Door Right Door Module Module
Engine Engine Control Control
Gear Gear
Gateway Gateway
Seat Seat Control Control Climate Climate Control Control Radio Radio HIFI HIFI
Infotainment speed, dual wire 125kBaud) 11519
Chassis Safety MBaud dual wire 11898
Mobil Mobil Phone Phone Multi Funct. Multi Funct. Display Display Multi Media Multi Media Module Module
Sensor Sensor
Subbus very speed kBaud) single wire
Communication (MOST, D2B)
Kern 15-Mrz-01 Page
Motor Motor
Actuator/ Sensor
System Engineering Automotive
Today`s Body System Architecture
Comfort
speed, dual wire kBaud) 11519 CAN-single wire kBaud) high speed 11898 (<125kBaud)
Door Module
Universal Panel Turn Signal Heating
Flap x-Axis y-Axis
Power Window
Door Lock Deadbolt
Inter-system communication
high number sensors actuators wiring harness scalability
based high complexibility high amount analog communication channels
Kern 15-Mrz-01 Page
System Engineering Automotive
Distributed Body Systems using
Comfort
speed, dual wire kBaud) 11519 CAN-single wire kBaud) high speed 11898 (<125kBaud)
Universal Panel
Subbus
Door Module
Mirror
speed, singlel wire 20kBaud)
Window Flap x-Axis y-Axis
Lock
Power Window
Door Lock Deadbolt
Turn Signal Heating
Intra-system communication based supports mechatronic solutions
Kern 15-Mrz-01 Page
high system scalability enhanced diagnosis capability
supports smart actuator/sensor nodes
System Engineering Automotive
overcomes major issues when decentralizing system
targets needs intra-system communication
deterministic single wire single master approach simplified error handling
cost sub-node implementation
utilizes common UART/SCI
cost ratio between transceiver approx. slave node need high precision clock source
provides more scalability
extended composability
Kern 15-Mrz-01 Page
easy system extension
System Engineering Automotive
Seamless Solution
Building Blocks Local Interconnect Network (LIN)
Microcontroller
Transceiver Software Driver
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System Engineering Automotive
Software Driver Structure
C16x Application Software
Application Software
Protocol Handling
Software Driver
Stream Generation
Timer
Transceiver
TLE6258 TLE6259
Kern 15-Mrz-01 Page
System Engineering Automotive
Software Driver Workflow Configuration
Protocol specific settings:
Baudrate Configuration Master Slave Node Declaration Messages allocation send, Header-File: receive LIN_initNode.h transport messages)
Hex-File
Compiler Linker
PC-Software
Configuration
User Application LIN-DRIVER
Application specific setting:
Allocation Timer resources Allocation resources Allocation interrupt priorities
Kern 15-Mrz-01 Page
System Engineering Automotive
Software Driver Properties
Software Driver provides defined Software Driver allows application specific configuration software driver application code elements data sections strictly separated interrupt handling under control user e.g. supports RTOS supports gateway functions
Kern 15-Mrz-01 Page
System Engineering Automotive
Software Driver Services
driver initialization Message filtering Message transmission Message reception Connect/disconnect node Sending ,,go sleep mode" command Sending ,,wake command Error detection message scheduler
Kern 15-Mrz-01 Page
System Engineering Automotive
Software Driver Hardware Resources
ASC: Timer channel: receive interrupt: Timer interrupt: stream generation timing monitoring interrupt driven protocol engine error detection, timing monitoring 3000 Byte Byte
Code Memory: Data Memory:
Kern 15-Mrz-01 Page
System Engineering Automotive
Software Driver Resources
Master task: Send Synch Break
load
Master Task
Slave Task
Baudarte 19200 message with data bytes
Receive Synch Break send Synch Field Receive Synch Field create send ID-Field Slave task:
Master Task Slave Task
Receive ID-Field (message filtering) call send first Data-Byte Receive Data-Byte send next Receive last Data-Byte calculate send Checksum-Field Receive Checksum
load: (fcpu MHz)
Kern 15-Mrz-01 Page
worst case: 4,5% typical
System Engineering Automotive
Transceiver 6258/59G
Lowest Lowest stand-by stand-by current <50µA current <50mA optimized optimised with passive with passive wave shaping wave shapping symmetric symmetric slopes slopes slew rate, slew rate, timing timing Short circuit Short circuit overtemp. prot. overtemp. prot. propagation propagation delay delay
feature 6259G
Inhibit P-DSO8 Output package P-DSO8 P-DSO8 package package Compatible Compatible 9141 9141 functions functions
Mode control Mode control unit unit
single wire LINtransceiver
6258/59
Internal Internal termination termination
Kern 15-Mrz-01 Page
Transmission Transmission rate rate 20kBaud 20kBaud
System Engineering Automotive
Block Diagram 6258/59G
Output Stage
Driver Temp.Protection
Mode Control
Receiver
6259
Kern 15-Mrz-01 Page
System Engineering Automotive
Application Example
Vbat
master node
6259
C16x
e.g. 4263
Kern 15-Mrz-01 Page
System Engineering Automotive
Seamless Solution
Building Blocks Local Interconnect Network (LIN) provided Infineon Technologies C16x powerful 16bit microcontroller family
Transceiver Family TLE6258G TLE6259G
Microcontroller
Transceiver Software Driver
Application Note Software Driver
Kern 15-Mrz-01 Page
System Engineering Automotive
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