Smart Suspension
Shocks absorbers are used to damp oscillations by absorbing the energy contained in the springs or torsion bars when the wheels of an automobile move up and down. Conventional shock absorbers do not support vehicle weight. They reduce the dynamic wheel-load variations and prevent the wheels
Project Title
Smart Suspension
Project Area of Specialization
Project Summary
Shocks absorbers are used to damp oscillations by absorbing the energy contained in the springs or torsion bars when the wheels of an automobile move up and down.
Conventional shock absorbers do not support vehicle weight. They reduce the dynamic wheel-load variations and prevent the wheels from lifting off the road surface except on extremely rough surfaces and making possible much more precise steering and braking. The shock absorbers turn the kinetic energy of suspension movement into thermal energy or heat energy. With the advent of new technologies in transport, there is a greater need for technological advancements in damper systems as well.
The aim of the project is to create an adaptive active suspension for vehicles that changes its damping power in accordance with the road conditions. The project uses an electromagnetic to stiffen or harden itself depending on the obstacle is a pothole or a speed breaker. The damper will remain in its natural state and will have a set amount of damping force provided by two permanent magnets when a speed breaker is detected to smoothly glide over the raised obstacle, but when a pothole is detected, the electromagnet will activate giving the damper more shock absorption properties.
The shock absorber can be installed on any vehicle as the damper can be recreated to provide shock absorption for any kind of vehicle, whether small or big.
An Arduino Mega will be used as the controlling hub, interfacing the obstacle detection sensors to, with the electromagnet system. The Arduino will also be interfaced with the custom circuit used to supply current to the electromagnet when needed.
Project Objectives
| Objectives | Descriptions |
| Provide a good handling performance. | Obstacles cause a disbalance in the vehicle, with the coordination of suitable body frame and suspension, the vehicle is easier to handle than to a common suspension system. |
| To provide better suspension response. | By detecting the obstacle before crossing it, the suspension will respond in a much more efficient way than to a normal suspension. |
| To ensure that steering control is maintained during maneuvering. | By adjustable suspension, we will observe that the vehicle’s grip on the floor will be much greater than a normal one. |
| Detecting potholes and bumps and reacts accordingly. | The suspension will compress when it detects a bump or speed breaker and will stretch when detects any pothole. |
Objectives
Provide a good handling performance.
To provide better suspension response.
To ensure that steering control is maintained during maneuvering.
Detecting potholes and bumps and reacts accordingly.
Project Implementation Method
Firstly, Lidar and Sonar sensors monitoring the road will send data to Arduino. As soon as an anomaly is detected on the road by the sensor, the Arduino will send data to the custom current supplying circuit. If the anomaly is a speed breaker the circuit will not supply the current and the damper will remain in its original state of reduced damping power via the two permanent magnets. Since the two permanent magnets will be in the opposite direction, they will produce a repulsive force due to the magnetic repulsion phenomenon of two like magnetic poles. This will provide a certain amount of damping on the application of force. This will provide ample damping in normal conditions of speed breakers or other protruded obstacles. When a pothole is detected, the Arduino sends a signal to the custom current circuit to provide current in the ratio of the depth of the pothole, the current is used to energies the electromagnet that increases the electromagnetic repulsion force between the two magnets providing increased damping force when needed. The deeper the pothole, the higher the current and higher will be the damping force.
An accelerometer attached to the acrylic plate that holds the suspension is used to detect the response of the system under different road conditions, which is compared to responses from conventional dampers.
A structure is designed to hold the suspension model. The structure is going to support the suspension and will aid in demonstrating it in different scenarios. A path is created out of plaster, with various deformations to display the project on-site.
Benefits of the Project
Smoother Ride
The vehicle will provide much smoother travel than a normal one as the smart suspension is more reactive and adjustable according to the scenario.
Detection Beforehand
The sensor will detect the depth of the obstacle, whether it is a pothole or a bump. This will result in the suspension to maneuver itself and pass the obstacle smoothly.
Life of The Vehicle Extended
The long term result of this technology is the vehicle will have a long life as it’s traveling on the much smoother note than normal. It will pass obstacles almost like a normal path.
Revolution in Automotive World
This will completely revolutionize the automotive world as this technology takes us much closer to the ideal movement, which is traveling with no hurdles.
Technical Details of Final Deliverable
Damper System:
Casing:
- Brass Grade Ordinary
- 52mm diameter
- 2mm Thickness
- 12in length
The Casing is used to house the electromagnet and the permanent magnets in place.
Magnets:
- Neodymium Grade N42
- 50mm diameter
- 20mm radius
The permanent magnets are providing the initial damping force to the damper by opposing each other. The magnets will provide an initial damping force of 9.49lbs
Electromagnet:
- Copper Wire Grade ordinary
- 46mm diameter
- 117cm height
- 0.1mm diameter
- 1000 turns.
The electromagnet is used to provide the damping force depending on the current supplied. The electromagnet will provide an additional force of 10lbs when activated with 2amps of current.
Current Supply Circuit:
- N-Type Power MOSFET.
- Resistor.
- Two independent 24V Power sources.
- Printed Circuit Board.
The circuit will be used to supply current to the electromagnet depending on the input from Arduino.
Detection System:
- 2 Sonar sensors
- Lidar Sensor.
- Arduino Mega.
- Printed Circuit Board.
- 12V Adapter.
- Accelerometer
The sensors will be used to detect the road conditions and the Arduino will act as the main control unit of the whole system. The accelerometer will be used to obtain the system response of the damper. The difference in amplitude of the damper will tell us how much damping it produces.
Structure:
- Mild Steel Grade Ordinary.
- 1in Diameter Square Pipes.
- 2ft Length.
- 1ft Breadth.
- 1.5ft without height adjustment.
- +1ft with height adjustment.
- 10mm holes at 1in for height adjustment.
- 2ft by 1ft 3mm Acrylic Sheet.
The structure is used to display the project. The structure will hold the suspension and circuit in place to be demonstrated on various terrains and surfaces. The Acrylic sheet holds the damper in place and provides a view of the machination so of the system
Miscellaneous:
- Brass Fittings
- Brass connecting rods
Miscellaneous items needed to keep the structure together.
Final Deliverable of the Project
Core Industry
Other Industries
Core Technology
Other Technologies
Sustainable Development Goals
Required Resources
| Elapsed time in (days or weeks or month or quarter) since start of the project | Milestone | Deliverable |
|---|---|---|
| Month 1 | Data Collection for project | Literature review, market survey, analysis of project domain, project need and initial requirements |
| Month 2 | Designing | Initial 2D and 3D designing, material selection as per requirements, parts procurement and dimensioning |
| Month 3 | Structure of Damper | Selection of non magnetic material for damper. Aluminum and Brass parts created according to initial design. |
| Month 4 | Selection of Magnetic material | Selection and import of Magnets of grade N42 |
| Month 5 | Making of electromagnet | Selection of material for making an electromagnet. Iron core, copper winding and insulation material. |
| Month 6 | Circuitry | Designing a custom PCB for current delivery to the electromagnet |
| Month 7 | Parts selection for obstacle sensing | Selecting of sensors and controller for obstacle detection |
| Month 8 | Structure for demonstrating damper | Creating a structure to hold damper for demonstration and testing purposes |
| Month 9 | Assembly | Assembly of all parts of the damper into a single working piece. |
| Month 10 | Testing and iterations | Testing of damper to see if it works as desired and making iterations for to bring the damper in desired working conditions |
| Month 11 | Finalizing | Completing leftover work and finalization of the project. |
If you need this project, please contact me on contact@adikhanofficial.com
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