23-06-2014, 11:26 AM
ELECTRO HYDRAULIC BRAKE SYSTEM
ELECTRO HYDRAULIC.ppt (Size: 959 KB / Downloads: 49)
INTRODUCTION
Electrohydraulic brake systems are the combination of electronics and hydraulics to create a more versatile brake system.
The electronics provide control flexibility, while the hydraulics supply the power.
In the true sense of the definition, any EHB vehicle may be braked with an electrical “joystick” completely independent of the traditional brake pedal.
The system is also a hydraulic Brake by Wire system.
This system senses the driver's will of braking through the pedal simulator and controls the braking pressures to each wheels.
Hydraulic fluid is used to transmit energy from the actuator to the wheel brakes.
Pressure Sensor
Pressure sensors are used for control and monitoring in thousands of everyday applications
Advantages
An electrohydraulic braking or "brake-by-wire" system is a braking system that replaces the control elements of the traditional braking system such as pumps, cylinders, hoses, belts and braking fluids, with electronic components activated by an electronic control device.
Such systems are increasingly being used in aircraft as well as the automotive industry due to several advantages they offer over traditional braking systems
CONCLUSION
EHB design allows system flexibility, inherent accumulator precharge isolation, and the ability to tune for optimum failed system stopping performance for all vehicle classes.
A carefully designed and implemented EHB system holds the promise of enabling the new brake-by-wire features while still reliably performing the everyday task of stopping the vehicle.