This type of controller has been
used in many modern vehicles to control the electronic features stable in any
vehicle. Through this feature if there is any defect in the vehicle can be
recovered easily without any difficulty. This system also helps the driver to
avoid any kind of crashes and also reduce the crash on the road. If the driver
loses his control due to over speeding of any other factor so that through this
controller, he can easily avoid crashes (Marek, 2010).
There is a lot of research has
been on this controller to check the efficiency of the controller and make if
more reliable for the driver. For this many researchers were able to reduce
some important risks like crashing of single car by 20%, crashing of any car on
the road and driver is injured 28%. The researchers are working on installing
some important sensors in these cars so that they can easily able to reduce
damage up to 75%. The working of this controller is quite simple and valuable.
The reason is that the driver can easily able to refrain from many huge
accidents on the road so that accidents can be reduced. Through this controller
there will be improved traction can be seen on slippery tracks. This technology
has been used in all latest hybrid and automatic vehicles. This technology was
started by the Australians but not it is popular in all over the world (Tjonnas & Johansen, 2010).
Components
of ESP control of Simulate Vehicle Dynamics and Analysis the Simulation
There are three main components
that are attached in series. The first component is wheel speed sensor that is
attached with control module and the next component is follow up with the
steering angle sensors. The raw rate sensor is present with the steering angle
that is involved in pointing the exact position of the car. Then after this
steering angle sensor is active and determine the position of vehicle front
wheel. Then the accelerator was involved in detection of sliding of the
vehicle. The wheel speed sensor showing the rpm of the wheels. Then this
information is transferred to the control module that is involved in detecting
discrepancy between actual and intended path. Then the control module communicate
with the steering angle sensor and discrepancy is monitor by raw rate sensor.
In over steering condition this
control module will apply brakes on the front wheels and make the vehicle tire
under control. The hydraulic unit of the vehicle will apply pressure that
decreases the speed of the wheel.
Control
strategies of Simulate Vehicle Dynamics and Analysis the Simulation
Traction
Controller in vehicle of Simulate Vehicle Dynamics and Analysis the
Simulation
This controller is also has been
used in most of the automatic vehicles. This technology was able to control the
slip factor the tire so that during acceleration it was able to keep track on
the road. This technology is more powerful than electronic stability control.
This is because through this the driver is able to control the vehicle in
proper way. In the past many research has been done on this traction controller
because many accidents were happening during winter season. Then after this
many research has been done on this controller to make the car stable on the
road in better way during this period. This controller also able to control the
speed of the vehicle and also able to eliminate the wheel slip (Nam, Hori, & Lee., 2015).
There are many cars that are
using this controller in their vehicles so that they can easily able to refrain
accidents on slippery tracks. The researchers were able to work on this feature
on detail so that the driver is able to maintain speed without any slip. The
best part of this technology is that through traction control system the
vehicle is able to maintain its speed on the road that is employed by antilock
braking system (Nam, Hori, & Lee., 2015) .
Whenever on the road if the
traction controller sense that one tire is spinning faster then it will
automatically apply brakes to slow down the speed of the vehicle. There are
some problems in that controller, one of them is that during antilock brake
system there is some effect on the engine can be seen. For this drawback many
researchers are working to reduce it for the betterment of the system (Mathew A Boesch, 2011).
Traction
Controller mechanism of Simulate Vehicle Dynamics and Analysis the Simulation
In the first step the traction
results occur only when caliper presses against piston, then this piston was
involved in applying the brakes. Then after this, friction of the wheel will
help the vehicle to slow down. Then the vehicle is stop and there is no kinetic
energy that will move the vehicle forward. In the last the tire will apply the
traction on the road and slow down the momentum of the car. This traction on
the tire will allow the vehicle to stay on the road and avoid sliding whenever
the car is parked or moving on sliding surface.
Introduction
of Simulate Vehicle Dynamics and Analysis the Simulation
In this report there is complete
design of the dynamic of the vehicle. For there is requirement of Simulink
model that has been provided. In that model the speed of the vehicle will be
checked in on the visualization board. This is the complete simulation of the
vehicle is presented that will give proper dynamics of this vehicle in arranged
manner. The main inputs of the systems are acceleration, deceleration steering
movement of the vehicle and also other parameters of the vehicle. The vehicle will
be controlled through the help of different control strategies. The starting
value of the velocity is taken as 70 according to the given file. By evaluating
the given design a different dynamic control design will be presented.
Aim of the
project of Simulate Vehicle Dynamics and Analysis the Simulation
The main aim of this project is
quite simple this is because in that project we will analyze in proper way what
are different parameters of the vehicle. What kind of feature that are present
in this vehicle. All of these things must be known for designing perfect
vehicle for the user. This is because if there is no improvement in the vehicle
that vehicle will be useless. This is the main job of the technical specialist
that is working in any vehicle tech cooperation. The main job of this person is
to improve some important feature of the vehicle, also he must have to solve
different problems that are present in the vehicle.
The simulation model of the
vehicle has been presented by the line manager, according to that design new
vehicle will be designed that will solve the problem of the line manager.
The main task of this report is
to make proper report on the performance of this vehicle through investing
different features of the vehicle in proper way. The controller will be added
to this system that will help to minimize the system at different speed.
of
Simulate Vehicle Dynamics and Analysis the Simulation
Distances of the front and rear axles from the centre of gravity of the car
of Simulate Vehicle Dynamics and Analysis the Simulation
Mass of the vehicle =1800 kg
The front wheel and rear axle
=1.8
The center of gravity =1.05 m
According to the given parameter
of the vehicle the mass of the vehicle is about 1800. The distance of the front
and rear axle can be found when the distance from center of gravity is given.
Wheel base
of the vehicle of Simulate Vehicle Dynamics and Analysis the Simulation
The force on the back wheel can
be calculated easily, according to these parameters it is about 5145. The front
wheel force can be calculated that is about 3675 N. the wheel base for this
vehicle is about 1.8 m
The wheelbase of the vehicle is
designed according to the parameters and weight of the vehicle so that it can
easily move from one place to another.
Maximum
rotational angle of steering hand wheel of Simulate Vehicle Dynamics and
Analysis the Simulation
This is one of the most important
parameter of the vehicle because it will save the vehicle during mishandling of
vehicle. When the vehicle is out of control if the rotational angle of the
vehicle is maximum it will help the vehicle to maintain on the road. For
extracting maximum rotational angle the most important part is set the
available wheel well space.
In the first step the center of
turning circle value is calculated then taking into account the width and
length of the car the steering angle can be calculated easily
Mass of the
vehicle of Simulate Vehicle Dynamics and Analysis the Simulation
The mass of the vehicle is set at
1800 kilograms.
of
Simulate Vehicle Dynamics and Analysis the Simulation
In this part the vehicle speed
will be constant at 30 miles per hour. According to that speed there are
different parameters that need to be overcome.
According to this scenario the
given slip angle is given by 2 degree. According to that slip angle the
movement of front and rear tire will be calculated. In this scenario the speed
of the vehicle will be varied but this type of cornering will be calculated
through steady state cornering. In this part the velocity and steering angle of
the vehicle will be constant. By setting this the simulations are performed at
any steering input. Through setting this configuration two conditions are
evaluated the first one is over steering and the next one is under-steering. This
can be done by changing the step steering angle of the vehicle from 0 to 2
degree only. From the results it can be seen that there is some increase in
turning radius of the vehicle by increasing the velocity of the vehicle.
Through this setting some important results has been verified like under
steering vehicle response is absolutely stable. This is just because of
increase in centrifugal force of the vehicle during change in slip angle
Calculation
for cornering stiffness of vehicle of Simulate Vehicle Dynamics and
Analysis the Simulation
The formula used for calculating
the stiffness of vehicle
References
of Simulate Vehicle Dynamics and Analysis the Simulation
Marek, J. (2010). MEMS for automotive and consumer
electronics. In 2010 IEEE International Solid-State Circuits Conference-.
Mathew
A Boesch. (2011). Traction and stability control system and method for a
vehicle with mechanically independent front and rear traction wheels. U.S.
Patent 8,061,464,.
Nam,
K., Hori, Y., & Lee., C. (2015). Wheel slip control for improving
traction-ability and energy efficiency of a personal electric vehicle. Energies
8, no. 7.
Tjonnas,
J., & Johansen, T. A. (2010). Stabilization of automotive vehicles using
active steering and adaptive brake control allocation. IEEE Transactions on
Control Systems Technology.