Anti-locking Brake Systems (ABS) - introduced 1978 by Bosch - have become a familiar feature in today''s automobiles the Electronic Stability Program (ESP) will capture tomorrow''s markets. Although today''s braking systems are fairly efficient, improvements in performance, comfort, assembly and maintenance is still possible. Brake-by-wire systems - the future in braking - meet these criteria best, as they have no mechanical or hydraulic connection between braking pedal and braking actuators. To be applicable fault-tolerant systems (e.g. safe power line and communication system) will be absolutely necessary. Infineon is an active member of several associations that define new standards for x-by-wire technologies and is working on solutions that comply with the requirements regarding fail-safe and fault-tolerant systems. COMPONENTS Based on advanced smart power technologies combining bipolar, CMOS and DMOS on the same chip, Infineon offers full-scale integration of the analog and power building blocks of an ABS/VSC ECU (Vehicle Stability Control, Electronic Control Unit). Other designs, e.g. with discrete power switches are possible, too. 8-bit or 16-bit microcontrollers of the C50x and C16x family are used as main or fail-safe controllers. The TriCore family combines microcontroller, microprocessor, and digital signal processing (DSP) capabilities and is well suited to the increasing requirements of CPU performance.

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