1 |
The degradation of friction materialsMoran, D. January 1973 (has links)
No description available.
|
2 |
Energy transformation at the friction interface of a brakeDay, Andrew J. January 1983 (has links)
Energy transformation at the friction interface of a brake has been studied in a system where resin bonded composite friction material is applied to a metal mating body. A time-step simulation of braking friction was developed using finite element techniques, based upon the PAFEC 75 program, combining calculations of interface contact, pressure and friction force distributions with transient temperature analysis. Only compressive normal forces and tangential friction forces are transmitted across the interface, and these were assumed to be related by Amontons' Laws; the coefficient of friction so defined being considered constant for the purposes of the analyses presented.
|
3 |
Intelligent power module for variable speed AC motor drivesAllaith, Noori A. January 1997 (has links)
No description available.
|
4 |
Selecting a topology for safety-critical real-time control systemsNicholson, Mark January 1998 (has links)
No description available.
|
5 |
A comprehensive electrical analysis of branched rail traction systemsCai, Yan January 1995 (has links)
No description available.
|
6 |
The friction and wear characteristics of a sintered metal motorcycle friction braking material, under wet and dry conditionsFlitcroft, S. M. January 1990 (has links)
No description available.
|
7 |
Car Automatic Braking System : based on original reverse warning systemRonghong, Xiao, Hai, Wang January 2012 (has links)
An original ultrasonic reverse warning system is a new system that can assist drivers while car is braking. It is includes ultrasonic emitter and receiver that can producing and receiving the ultrasonic waves to determine the distance between car and obstacle. But it is not good enough for the safety of cars, in this paper, we are meant to design a system that can help drivers stop the car automatically, an electronic circuit was constructed. According to this circuit we design, a signal was produced to the braking system of car based on the distance between car and obstacle for a safe braking purpose. Error is also discussed and during the experiment, the improvement for the original system has also achieved.
|
8 |
Classification of Articulated hauler braking behavioursThamel, Prasadini January 2019 (has links)
This study is performed to identify the customer braking behaviors of Articulated haulers. The data files from the different customer sites are used to analyses the data. The braking definition for the braking event was created to identify the braking events by using of output braking pressure. Also the statistical features related to the vehicle were calculated for identified braking events. Furthermore the braking events were classified according to the classification rules which were created based on calculated statistical features.The final results ( classification) motivates and satisfies with the aim of the project.
|
9 |
Development of a Novel Air Hybrid EngineFazeli, Amir January 2011 (has links)
An air hybrid vehicle is an alternative to the electric hybrid vehicle that stores the kinetic
energy of the vehicle during braking in the form of pressurized air. In this thesis, a novel
compression strategy for an air hybrid engine is developed that increases the efficiency of
conventional air hybrid engines significantly. The new air hybrid engine utilizes a new
compression process in which two air tanks are used to increase the air pressure during the
engine compressor mode. To develop the new engine, its mathematical model is derived and
validated using GT-Power software. An experimental setup has also been designed to test the
performance of the proposed system. The experimental results show the superiority of the
new configuration over conventional single-tank system in storing energy.
In addition, a new switchable cam-based valvetrain and cylinder head is proposed to
eliminate the need for a fully flexible valve system in air hybrid engines. The cam-based
valvetrain can be used both for the conventional and the proposed double-tank air hybrid
engines. To control the engine braking torque using this valvetrain, the same throttle that
controls the traction torque is used. Model-based and model-free control methods are adopted
to develop a controller for the engine braking torque. The new throttle-based air hybrid
engine torque control is modeled and validated by simulation and experiments. The fuel
economy obtained in a drive cycle by a double-tank air hybrid vehicle is evaluated and
compared to that of a single-tank air hybrid vehicle.
|
10 |
Development of a Novel Air Hybrid EngineFazeli, Amir January 2011 (has links)
An air hybrid vehicle is an alternative to the electric hybrid vehicle that stores the kinetic
energy of the vehicle during braking in the form of pressurized air. In this thesis, a novel
compression strategy for an air hybrid engine is developed that increases the efficiency of
conventional air hybrid engines significantly. The new air hybrid engine utilizes a new
compression process in which two air tanks are used to increase the air pressure during the
engine compressor mode. To develop the new engine, its mathematical model is derived and
validated using GT-Power software. An experimental setup has also been designed to test the
performance of the proposed system. The experimental results show the superiority of the
new configuration over conventional single-tank system in storing energy.
In addition, a new switchable cam-based valvetrain and cylinder head is proposed to
eliminate the need for a fully flexible valve system in air hybrid engines. The cam-based
valvetrain can be used both for the conventional and the proposed double-tank air hybrid
engines. To control the engine braking torque using this valvetrain, the same throttle that
controls the traction torque is used. Model-based and model-free control methods are adopted
to develop a controller for the engine braking torque. The new throttle-based air hybrid
engine torque control is modeled and validated by simulation and experiments. The fuel
economy obtained in a drive cycle by a double-tank air hybrid vehicle is evaluated and
compared to that of a single-tank air hybrid vehicle.
|
Page generated in 0.0544 seconds