16-11-2012, 05:42 PM
Latest Trends in Suspension system
Latest Trends Suspension system.pptx (Size: 672.54 KB / Downloads: 70)
Suspension Purpose
Isolate passengers and
cargo from vibration
shock.
Improve mobility
Improve vehicle control
Latest Trends
Air Suspension
Hydraulic suspension
Hydrolastic Suspension
Hydragas Suspension
Hydro pneumatic Suspension
Digital Suspension Systems
Linear Electromagnetic Suspension
Air Suspension
Air suspension is a type of vehicle suspension powered by an engine driven or compressor. This pump pressurizes the air, using compressed air as a spring.
Air suspension replaces conventional steel springs.
The purpose of air suspension is to provide a smooth ride quality and in some cases self-leveling.
Working
The air springs shown are mounted on the front and rear axle. The atmospheric air first passes through the filter where the dirt is removed and passed on to the compressor.
Air is compressed here and the pressure of air is raised from atmospheric to about 250 Mpa.
This pressure is maintained by the accumulator tank. The safety relief valve is provided on the accumulator as a safety device and it opens when the pressure rises above 250 Mpa.
This air then moves to lift control valve and through leveling valves to the air springs as per the requirement.
Advantage
Air suspensions have a wide turning range and don't require the adjustments that steel springs would require to reach the same level of turning capacity
Air suspensions are also usually much better at carrying heavy loads while still providing a comfortable ride.
It gives smooth and comfort ride of the vehicle.
It helps to reduce the load while the vehicle in motion
Linear Electromagnetic Motor
A linear electromagnetic motor is installed at each wheel of a Bose equipped vehicle. Inside the linear electromagnetic motor are magnets and coils of wire.
When electrical power is applied to the coils, the motor retracts and extends, creating motion between the wheel and car body.
The motor has been designed for maximum strength in a small package, allowing it to put out enough force to prevent the car from rolling and pitching during aggressive driving maneuvers.
Working
The motors receive input through amplifier from sensors throughout the vehicle and react to bumps and potholes instantaneously.
Using downward force to extend the wheel into potholes while keeping the car level and the driver virtually unaware. As the wheel come back up onto the road, the suspension recaptures nearly all the energy expended.