HIL Based Services

Apart from Control System Design and Implementation, Pathway Technologies Inc provides HIL solutions for companies that want to reduce their embedded system design cycle times, decrease the costs associated with control system design and implementation and warranty issues. We can help setup a cost-effective, PC based, hardware in the loop (HIL) simulation and test environment for rapid testing of your control system designs in a software environment. We assemble and deliver PC architecture based HIL simulators which work with the xPC Target real-time kernel from The MathWorks. The xPC Target compatible real-time target hardware we provide features a wide variety of I/O interface modules (such as A/D, D/A, counters, DIO etc...) that will satisfy typical HIL testing needs. We also provide interface modules for our HIL simulator that are customized to your requirements so that you can interface your ECU with the PC based system simulaton. In addition, we also provide services for converting your non real-time system models into real-time models for execution in the HIL simulation environment.

Hardware-in-the-Loop Simulation

Embedded systems play a very important part in the control of various Mechanical, Aerospace, Chemical and other types of systems. A controller, intended for use in a production control system, needs to be tested as a part of the system. However, actual system hardware can be very expensive and/or not available for testing when required. As a consequence of such constraints, the system designers have to investigate alternate approaches to test the controller. Once such approach comprises testing of the controller against a real-time simulation model of the physical system. This methodology of testing control software performance against a system simulation is commonly referred to as Hardware-in-the-Loop (HIL) simulation in the industry. Today, HIL simulation test benched are routinely used for testing embedded control systems before deployment. Once the controller performs satisfactorily in the HIL simulation, the ECU is transferred to and tested on the actual system.

Hardware-in-the-Loop Testing

Before a new system is put together it is essential to test individually and make sure that all components and sub-systems perform as required. Hardware-in-the-Loop (HIL) applications are used by engineers to simulate, evaluate and validate such components and sub-systems during development of new systems. Rather than testing these components in complete system setups, HIL allows the testing of new components and prototypes while communicating with software models that simulate the rest of the system. The new components being tested (hardware) respond to the simulated signals (generated by the software models) as through they were operating in a real system. Replacing the rest of the system with computers running software simulations greatly reduces the size and complexity of applications. This type of an environment gives a test engineer much more flexibility and also allows him to run many different tests in a short time, thus increasing the productivity.