
Industrial automation: Controller-plant testing, when stopping the production or assembly line to test control algorithms involves a huge amount of resources and business loss. Automotive: Vehicle dynamics and controls, where it is impractical to test the functionality on the road in the initial phases. Aerospace and defense: Flight simulators and flight dynamic control, where it is too complex to test the control algorithm on the actual aircraft. HIL is also being adopted in medical devices, communications, semiconductors, and other industries.
HIL simulation is widely used in the automotive, aerospace and defense, and industrial automation and machinery industries to test embedded designs.
HIL simulation is especially useful when testing your control algorithm on the real physical system is costly or dangerous.