Simulation modeling of the automobile braking system performance

Abstract

Simulation model of the automobile braking system performance taking into account not only the wheel, brake pads, brake drum dynamics but the dynamics of the hydraulic brake system: the main hydraulic cylinder, the brake gear hydraulic cylinders has been presented. Effect of changing parameters of the braking system elements on the braking distance of the automobile has been considered. Road users’ safety relies heavily on effectiveness of vehicle braking system. Thus, braking system design is essential when designing a new vehicle. Modeling of the functionality of the designed system is one of the most important phases of design. Time and material expenses for imitational modeling are always less than actually producing models and conducting experiments on them. Experiments should prove theoretical abstracts stated while modeling. Thus, the imitational model should be well designed and adequate. Imitational model allows efficient operation of brake system with different system of control.

Considerations for the Design of a Wheelchair Dynamometer Concerning a Dedicated Braking System

“…The shift in the brake lever ( 13) is caused by the rotation of the electric engine (21) via the connector (18). The electric engine ( 21) is controlled by the control system (20). The control system (20) is supplied with pressure p from the liquid from the pressure sensor (15), which is installed between the hydraulic piston ( 14) and the brake piston (16).…”

“…The system utilizes an electric engine consisting of a TSP-202005 servomechanism (TSP-Racing, provided by Conrad LLC, Poland), which was selected based on the brake lever clamping force demand calculations. The electric engine ( 21) is equipped with an encoder (19) that measures the current angular position ϕ and simultaneously transmits this value to the control system (20). This constitutes the basis for the generation and correction of the set position ϕ of the electric engine (21).…”

“…The response rate of anti-lock braking systems [16][17][18] may also depend on the occurrence of hysteresis losses. Research is currently being carried out with the aim of modeling a braking system's operation in dynamic conditions for the purpose of optimizing its parameters and the control algorithm [19,20].…”