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Clutch and
Transmisission
Actuator
EPS Motor
Brake Booster
Throttle Flap
Steering Torque
Brake Pedal
Steering Angle
Angle SensorsSwitches Linear Hall
ISO26262
Infineon Magnetic Position Sensors in Functional Safety Applications
ISO
26262 defines the development of electric and electronic automotive systems regard-
ing their functional safety. The aim of this standard is to reduce failures and malfunction
of such systems. Development process depends on the ASIL (Automotive Safety Integrity
Level) of the target application and can range from ASIL-A to ASIL-D. Applications like
steering or braking systems for example, are rated with the highest level ASIL-D. There, a
failure can lead to an uncontrollable vehicle and may cause fatal injuries.
All new Infineon Safety Sensors are developed in compliance with ISO
2
6262 standard,
thus allowing direct use in all safety applications. Sensors which are developed as a QM
part can nevertheless be used in ISO compliant systems as described in part 8 clause 13
of the standard. Infineon provides the necessary support for qualification of existing QM
products, as ISO
26262 ready and ISO 26262-compliant products.
Typical Applications Requiring Functional Safety
Steering systems: torque and angle sensing, Index counting,
EPS-motor rotor position sensors
Braking system: brake by wire, brake booster (actuator),
brake pedal switch (brake light)
Clutch and transmission systems (actuators)
E-gas (gas pedal and throttle)
Safety Key Features
Sensor Chip
Dedicated safety mechanisms
Built in self-test at start up
Cyclic checks of main blocks during
operation
Sensor Package
Dual-sensor package oers
redundancy and diversity
Interfaces
Chip status communication to ECU
Multiple digital and analog
interfaces available
Proven in Field
Mature GMR technology
(manufacturing > 10 years)
Mature Hall technology
(manufacturing > 20 years)
Zero defect quality
Safety Brief
www.infineon.com/sensors
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