Multifunctional brake system hardware-in-the-loop test bench

The invention discloses a multifunctional brake system hardware-in-the-loop test bench, which comprises a bench basic frame and a bench control system; the bench basic frame comprises a bench body, an accurate control automatic test device, a tested brake system, an independent vacuum source and a sensor group; the tested braking system is a traditional braking system of an original target vehicle model; according to the invention, firstly, the working table is built by adopting aluminum profiles, the wheel distance and the axle distance can be adjusted according to actual vehicle requirements, arrangement and installation of pipeline systems of different vehicle types are achieved, expandability is high, and then through installation detection of a plurality of sensors, a main cylinder and wheel cylinder pressure buildup curve, a pedal force-pedal travel curve, a pedal force-deceleration curve, a braking distance, a vacuum degree of a vacuum booster and pedal feeling subjective evaluation (static) are collec