INTRODUCTION The most important challenge facing car manufacturers today is to offer vehicles that deliver excellent fuel efficiency and superb performance while maintaining cleaner emissions and driving comfort. This seminar deals with i-VTEC (intelligent-Variable valve Timing and lift Electronic Control) engine technology which is one of the advanced technology in the IC engine. i-VTEC is the new trend in Honda ’s latest large capacity four cylinder petrol engine families. An internal combustion
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the input and outputs speeds and torques of gear boxes. • Calculate the holding torque on gear box cases It is assumed that the student is already familiar with the following concepts. • Angular motion. • Power transmission by a shaft. All these above may be found in the pre-requisite tutorials. © D.J.Dunn 1 1. INTRODUCTION A gear box is a device for converting the speed of a shaft from one speed to another. In the process the torque T is also changed. This can be done
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rod specimen: 1. To compare the experimental shear modulus (modulus of rigidity) with the tabulated values. 2. The maximum shear stress at the limit of proportionality or the proportional limit shear stress‚ 3. The general characteristics of the torque‚ angle of twist relationship. The proportional limit shear stress: the highest shear stress that the material can withstand and still return to its original geometry is at the limit of the proportional portion of the graph and is known as the proportional
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INTRODUCTION Electromagnetic clutches operate electrically‚ but transmit torque mechanically. This is why they used to be referred to as electromechanical clutches. Over the years EM became known as electromagnetic versus electro mechanical‚ referring more about their actuation method versus physical operation. Since the clutches started becoming popular over sixty years ago‚ the variety of applications and clutch designs has increased dramatically
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control‚ high starting torque‚ quick starting‚ stopping‚ reverse and acceleration and free from harmonics found in AC. Applications of DC motors include but are not limited to: Transportation such as electrical locomotives‚ rapid transit systems and trolley cars Cranes‚ hoists and in conveyers Rolling mills Constant speed lathes Centrifugal pumps‚ fans‚ blowers‚ reciprocal pumps and machine tools like drills. Elevators‚ heavy planers‚ air compressors and intermittent high torque loads The theory behind
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Introduction Chapter 3 Electromechanical Energy Conversion Topics to cover: 1. Introduction 3. Force and Torque 5. Friction 2. Electro-Motive Force (EMF) 4. Doubly-Excited Actuators 6. Mechanical Components Introduction (Cont.) For energy conversion between electrical and mechanical forms‚ electromechanical devices are developed. In general‚ electromechanical energy conversion devices can be divided into three categories: – Transducers (for measurement and control)‚ which transform
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magnetic field in the motor is rotating in a counterclockwise direction. With a rotating magnetic field present in the motor‚ the induction motor will develop a net torque in the direction of motion‚ and that torque will keep the rotor turning. If the motor’s rotor had originally been turned in a clockwise direction‚ the resulting torque would be clockwise and would again keep the rotor turning. Double Revolving Field Theory According to this theory‚ any alternating quantity can be resolved
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following parameters should be known * Current in rotor in case of Induction motor is “AC” and in case of synchronous it is “DC”[2] * Magnetization in case of Induction motor is induced while in Synchronous it is fed by external source[2] * Torque of Induction Motor is lower than synchronous motor[2] * An induction machine is an asynchronous machine that has a magnetic circuit interlinked with two electric circuits‚ or sets of circuits‚ rotating with respect to each other.[3] * Power
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Assessment Question Ali had an antique motorbike which he decided to sell. He parked the motorbike on his front lawn with a sign " For sale- RM20‚000". Ah Chong‚ who saw the sign‚ said to Ali that he would be prepared to buy the motorbike for RM15‚000. Ali replied that the price is too low and suggested RM18‚000. Ah Chong responded by asking if Ali would be prepared to accept payment of the RM18‚000 in three monthly instalments of RM6‚000 each. Ali replied that he would not. Ali then added‚" Anyway
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speed of motor. The speed regulator uses a PI controller in order to obtain the electromagnetic torque needed to reach the desired speed. Current controller controls the armature current by computing the appropriate thyristor firing angle or by using the firing gate angle. This generates the rectifier output voltage needed to obtain the desired armature current and thus the desired electromagnetic torque. This report also includes the work already completed and work planned for the next semester.
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