The signal flows in the HILS program are demonstrated in Fig six
Then, since the automobile is composed of 1 carbody, two bogies and four wheelsets, its motion has a total of seventeen DOF.a fantastic read Main suspensions are put in among the bogies and the wheelsets, and secondary suspensions are put in among the carbody and the bogies. A components-in-the-loop simulation program for a brake device of a railway vehicle deemed in this analysis is composed of the dynamic design of the railway vehicle for actual-time simulations and of the hardware elements of the brake program, as proven in Fig five. The dynamic design of the genuine-time simulations is composed of the automobile dynamics, the wheel-rail make contact with design, and the different friction product of the disc and the pad, as described in earlier section. The hardware components of the brake method contain the brake caliper, the brake functioning unit , four WSP valves, four reservoirs for dummy volumes, the brake pressure sensors, the air strain sensors, the signal conditioners, the brake controller, and the pneumatic pipes. The brake controller is composed of an European and an ASCU whose capabilities are brake force manage utilizing brake control and wheel slip avoidance logic. The sign conditioners amplify and filter the Eu and the ASCU output alerts and send the alerts to the BOU. The BOU actuates pneumatic valves and then actuates the brake caliper. The piping perform was executed as carefully as achievable to the pneumatic program of the genuine provider train . The mechanical brake system in the created HILS program has the exact same structure with the schematics in Fig one, but the wheel is stationary. The movement of the car is executed by the true-time simulation part in the HILS. The HILS method is ready to provide genuine typical brake force on the brake disc. Then the friction power on the brake disc is calculated by the item of the calculated typical drive and the friction coefficient of the brake pad. Co-simulation making use of the dynamic types and the hardware factors calls for suitable data exchange among the hardware parts and the software program car versions. The application vehicle versions offer the simulated car speeds to the components factors, and then the BOU generates the braking power utilizing the brake caliper according to the brake command and the simulated car speeds. The braking pressure was calculated by the brake pressure sensor , and the measured braking power was fed back to the software program car product. For that reason, from the viewpoint of the hardware brake device, the brake device of the brake HILS technique receives comparable electrical signals with signals of the true practice.