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The objective of this paper is to examine the state-of-the-art technologies driving the development of advanced electronic chassis control systems. In addition, the paper provides an overview of how the future systems will function and reveals the benefits to the consumer by these advanced solutions. Advanced electronic chassis control systems naturally segment into several categories including advanced electronic braking systems, advanced electronic steering systems, electronic suspension systems, and collision warning / avoidance systems. Together, these intelligent, automated, vehicle control systems offer the consumer a safer driving experience with a higher performing, more fuel efficient, and environmentally friendly automobile.

The objective of this paper is to provide an introduction to the main features of the Time Triggered Protocol (TTP/C) multiplexed communications protocol for fault-tolerant automotive systems. In future generations of vehicles there is a requirement for systems which provide highly dependable operation. Brake-by-wire and Steer-by-wire systems are being developed which have no mechanical / hydraulic back-up functionality in the event of an electrical system failure condition. These systems will be required to tolerate a system failure and continue to operate without catastrophic effects. The Time Triggered Protocol is a multiplexed serial communications protocol which has been developed over the last fifteen years to help meet the requirements of such systems. This paper will discuss the principles of TTP/C and explain the key elements which make it suitable for such applications.