SENSOR OPERATED HYDRAULIC BRAKING SYSTEM

Abstract

The aim of this project was to create a physical model to demonstrate the transfer of forces from the mechanical domain to the hydraulic domain, and back to the mechanical domain. To do this, a spinning wheel was designed to be stopped using a hand brake connected hydraulically to a set of calipers and a brake rotor. A wheel on a dead axle was spun up via a motor and once the wheel was at speed, mechanical force was applied to the hand brake to bring the wheel to a stop. Calculations for the model were made to determine flexure, stress concentrations, natural frequency and the mechanical advantage of the braking system. The calculations showed that under normal operating conditions, the whole assembly will not have any noticeable flexure, the stress concentrations in the axle will not lead to catastrophic failure, the natural frequency of the rotating wheel on a simply supported axle is far above that of the operating frequency, and the hydraulic brake has ample mechanical advantage to safely bring the wheel to a stop. Once all these calculations ensured that the model would not fail during operation, a physical model was constructed. Testing and operation of the physical model showed that the calculations were accurate. The final model successfully shows the transfer of mechanical force (the user squeezing the handle) to hydraulic force (moving a piston) to mechanical force, which generates friction between the calipers and the brake rotor to stop a rotating wheel. The main objective of this project is to fabricate button operated hydraulic braking system. In this project the user can apply brake through leg and also with the help of hand. This will be very useful to handicapped also. This will be highly reliable to the user.

Existing System

Proposed System

Architecture

BLOCK DIAGRAM

LINE DIAGRAM