Driving the Future of Automotive Electronics Automotive Application Guide

Contents Challenges and Trends Safety Applications Body Applications Powertrain Applications Enhanced Communication Peripheral Highlights Embedded Software Automotive Excellence Program

Driving the Future of Automotive Electronics Infineon Technologies is a leading player and pioneer in automotive electronics. Our enduring success in this field is due to a clear strategic focus on automotive applications and standards, the understanding and insights that have emerged from almost 40 years of dedicated experience and our ability to continually innovate this market with a broad portfolio of outstanding quality. Our sensors, microcontrollers and power semiconductors help automotive manufacturers achieve their increasingly challenging safety, affordability and efficiency targets....

The demand for alternative, more energy-efficient forms of mobility is increasingly geared toward electromobility. Drivetrain electrification, whether in hybrid electric vehicles or – ultimately – fully electric vehicles, has the advantages of higher energy efficiency and zero tailpipe emissions. As the world leader in automotive and advanced power electronics, with ten years of experience in electromobility, Infineon delivers a broad suite of best-in-class microcontrollers, power semiconductors and sensors that are helping to solve today’s electromobility challenges. Fuel Efficiency As we transition...

Safety Applications Safety Applications Electronics play a key role in improving road safety. Nowadays, both customer demands and government legislation are pushing for greater traffic safety. Electric power steering is a good example of how greater safety dovetails with the pressure to increase fuel efficiency and reduce CO2 emissions. Infineon is one of the few broadband suppliers with a portfolio extending from intelligent sensors and microcontrollers through automotive power standard products and application-specific standard products (ASSPs) to highly integrated customized application-specific...

Safety Applications Typical Safety Configuration of CIC61508 Voltage Monitors Error State Monitor Opcode Test Sequencer Control Logic Reset Path Control OptiMOS™-T2 40V IPB 180N04S4-01 Appl. Main Switch Safety Path Control NVM Secured Supply for Actuators Opcode Test Sequence Cong Safety systems require an independent watchdog which implements a robust monitoring channel for main MCU supervision in ISO26262 and IEC61508-compliant safety applications. Thanks to its small footprint, the CIC61508 is a spacesaving and cost-effective option for supporting applications such as steering, braking, suspension,...

Airbag System (Basic) CAN Mechanical Switch On-board Sensors Safety Enable Lines Vlogic 4-Channel Power Supply DC Sensor Interface Buckle Switch TLE 4976 Buckle Switch TLE 4976 Warning Lamp System Benefits Infineon’s chipset for basic airbag systems Dedicated mixed-signal airbag ASSPs supports low-cost designs for emerging provide flexibility and scalability for up to performance at the cost of a 16-bit system Suggested Products Product Powerful 16/32-bit microcontroller family with dedicated safety features (PRO-SIL™) Airbag ASSP with integrated buck, boost supply, DC sensor interface, 4-loop...

Airbag System (Advanced) CAN Accel. Sensor Accel. Sensor Satellite Sensor Interface TLE 7729 Accel. Sensor On-board Sensors Accel. Sensor Power Supply Buck, 2 Boost, Linear, Watchdog, Reset, Buckle Switch IF TLE 8760 Buckle Switch TLE 4976 Buckle Switch TLE 4976 Warning Lamp Airbag O System Benefits Infineon’s broad product spectrum supports scalability and flexibility for building systems 16/32-bit microcontrollers with dedicated safety functions with 4 up to more than 20 firing loops The parts are optimized in terms of system Full range of airbag ASSPs ranging from interoperability as well...

Seatbelt Pretensioner Reversible Seatbelt Pretensioner +12V from Battery Current Sense/ Error Flag Vehicle Stability Control ECU System Benefits Seatbelts are still the primary safety feature Safety experts predict that reversible for protecting car passengers from severe seatbelt pretensioners will become Correct belt tension before a crash reduces This illustration shows the partitioning of an the severity of injuries while also increasing Infineon system solution for this application passenger comfort in normal use which includes supply, microcontroller, sensor, power and communication ICs...

Parking Brake Electric Parking Brake +12V from Battery Apply/Release Switch Current Sense/ Error Flag CAN Transceiver TLE 6250/51 TLE 7250 Vehicle Stability Control ECU Electric Parking Brake ECU System Benefits The electric parking brake provides many These convenience features are also more comfort and convenience features to safety-relevant, so they must be implemented drivers than the standard mechanical system using safety-capable hardware (according Hill hold, launch control, roll-away Suggested Products Product Powerful 16/32-bit microcontroller family with dedicated safety features (PRO-SIL™)...

Electric Power Steering (EPS) +12V from Battery Electric Power Steering ECU Power Supplies TLE 8366 (DC/DC) TLE 42754 TLE 425x Steering Angle Sensor Steering Angle Sensor or Sensor Interface Torque Sensor Wheel Speed Sensor Rotor Position iGMR Sensor TLE 5012 Current Sense (Shut Substitute) TLE 4990/97/98 Speed Vehicle Stability Control ECU Steering Angle OptiMOS™-T 40V 7x IPB 180N04S4-01 Rotor Position/Current Sense HS-CAN FlexRay-Bus System Benefits EPS increases fuel efficiency by approximately EPS is the steering technology needed to 3% while improving car handling and the enable advanced...

Electro Hydraulic Power Steering (EHPS) +12V from Battery Pressure Sensor Electro Hydraulic Power Steering ECU System Benefits EHPS substitutes the belt-drive of conven- tional hydraulic power steering systems with an electric pump motor EHPS generates fuel-efficiency benefits that are almost on a par with those of EPS, but at a minimum cost EHPS enables demand-controlled operation EHPS systems are therefore very attractive for of the steering system, therefore optimiz- the low-cost car segment, where advanced ing fuel efficiency and CO2 emissions by assist functionality is not mandatory approximately...