FPGA design and verification in mechatronic applications

FPGA devices are already heavily used in aerospace applications. The widespread use of FPGA devices in automotive applications, however, has not yet arrived—but trends reported by mainstream automotive suppliers indicate that the potential advantages of these devices have not gone unnoticed¹. The capacity of these devices to implement and integrate both software and digital-hardware functionality—on a single component—is very attractive. Certain challenges remain, such as ensuring that these devices are compatible with harsh automotive environments and are compliant with the exacting reliability requirements of the industry. The biggest challenge in utilizing FPGA devices, however, may be one of methodology.

Design methodologies for automotive and aerospace applications must consider the complexities of mechatronic² systems. Even something as simple as an electronic throttle control system (see Figure 1) is a sophisticated combination of feedback control systems, analog and digital circuitry, multi-physics sensors and actuators—all controlling an electromechanical physical device (an engine throttle body in this example). The importance of unambiguous, verifiable system requirements to the success of these electronic products cannot be overemphasized.

Figure 1. Electronic throttle control system (click on image to enlarge).