INTRODUCTION: The locomotion in which the driving force is obtained from electric motor is called the electric traction system. There are various system of electric traction existing such as electric train, trolley buses, diesel-electric vehicles and gas turbine electric vehicles
Date added: May 5, 2013 - Views: 263
Introduction Electric traction means a locomotion in which the driving force is obtained from electric motors. Electric traction will continue to play a dominant role in the Railway since it is an environmentally clean technology compared to diesel traction and also its running cost is low.
Date added: September 18, 2013 - Views: 36
www.technologyfuturae.com. INTRODUCTION. HEVs are gaining increased attention due to their higher efficiencies and lower emissions. HEV combines a smaller IC engine with a battery pack and an traction motor to drive the vehicle.
Date added: May 2, 2013 - Views: 49
Economies of TRACTION DIESEL VS ELECTRIC How Competitive are the Diesels ? Is there a need for further Electrification in Indian Railways ? Railway Electrification is justified on various Grounds Modernization Energy Efficiency Depleting Oil Reserves Savings in Foreign Exchange Marginally ...
Date added: September 7, 2011 - Views: 261
Traction Motors (DC Series Motor) The traction motor is a dc series motor, four pole or six pole, forced ventilated machine arranged for axle mounting on sleeve baring and supported on the opposite by the resilient suspension unit, ...
Date added: May 3, 2013 - Views: 58
TRACTION MOTOR : CONTROL AND APPLICATIONS Content : Introduction Requirements of a traction system Control of DC motors Electronic Speed Control Methods for DC Motors Pulse Width Modulation Braking operation in DC motors Conclusion References INTRODUCTION Traction motor refers to an electric ...
Date added: January 2, 2014 - Views: 66
HYBRID ELECTRIC (HE) HMMWV ... HMMWV ORD Modernization under HMMWV JMENS & Addenda Meet CSA Guidance to reduce Logistics Footprint 80kW Diesel Fueled Motor/Generator Electric Traction Motors - 1 per axle Auxiliary Power Distribution System (APDS) ...
Date added: September 14, 2011 - Views: 39
Invention of electric traction motor stimulated growth of electric trolleys 2. Most dramatic impact was swift development of urban fringes-radial trolley corridors 3. Quality of housing and prosperity of streetcar suburbs increased with distance from the central city line 4.
Date added: October 30, 2011 - Views: 21
INTRODUCTION. High mileage and low emission vehicle – HEV, EV. Motor for EV – Cost, Weight, Efficiency. Switched reluctance motors are a good choice for an electric vehicle
Date added: May 5, 2013 - Views: 88
... The Mechanical Aspect Vehicle has forward momentum The wheels are coupled to the rotors of electric traction motors in an EV Instead of a current being applied to the motor to turn the rotors, ...
Date added: March 13, 2013 - Views: 189
A traction motor is an electric motor used to rotate drive wheels and propel the vehicle, which moves as a result of traction between the wheel and the road surface. The controller allowed different voltages to be applied to the electric motor, ...
Date added: October 17, 2013 - Views: 20
Why Switched Reluctance Motors? Let’s Focus on 3 Motor Types AC Induction Brushless DC Switched Reluctance AC Induction Source: “AC, Brushless, Switched Reluctance Motor Comparisons” James R. Hendershot, Magna Physics Corporation Brushless DC Source: “AC, Brushless, Switched Reluctance ...
Date added: November 10, 2011 - Views: 223
Series HEVs Needs three machines: Engine Electric generator Electric traction motor The gasoline engine turns a generator, and the generator can either charge the batteries or power an electric motor that drives the transmission.
Date added: May 3, 2013 - Views: 57
... More Gearless Applications Energy Consumption Elevator Speed and Payload Frequency of Use Hoist Way Efficiency Motor Efficiency ... Worldwide DC Motors and Machines are in Good Working Order and Provide Excellent Ride Quality Otis 72 and 269 Types of Motor Drives For DC Motors M-G ...
Date added: September 19, 2011 - Views: 122
MOSFET attempts in the 1980s, expensive (GM Sunraycer) IGBTs since about 1990. Primary Power Electronics Content Main traction drive inverter ... If this is all electric: Requires about 500 A peak motor current for a 300 V bus. About 300 A for a 500 V bus.
Date added: October 10, 2011 - Views: 82
Define the system and its components Formulate the mathematical model and list the necessary assumptions Write the differential equations describing ... Models Example 2.8 Signal-Flow Graph Models Example 2.10 Signal-Flow Graph Models Design Examples Speed control of an electric traction motor.
Date added: October 27, 2011 - Views: 133
Traction Motor. 102 HP (76 KW), 221 lb-ft (300 N-m) permanent magnet electric motor. Range: 100 Miles. Max. Speed: 50 mph (80 km/h) Battery Charger. On-Board Charger for Traction Battery. 220V Single Phase. Wheelbase: 142 in (3600 mm) GVWR:
Date added: June 29, 2013 - Views: 15
Unit costs of energy in Russia’s transport system. 1. Freight transport, kg of fuel equivalent/10,000 tkm. Rail transport (electric traction) Motor transport
Date added: January 6, 2014 - Views: 9
Two forms: assist pump and direct electric. The assist pump uses an electric motor to drive a conventional ... Additional Applications Mild Hybrids The key limitation of 42 V is that it really does not support electric traction power levels. As the promise of electric and hybrid ...
Date added: September 13, 2011 - Views: 119
... In fuel cell conversion engines, the hydrogen is reacted with water to form electricity, using that to be power an electric traction motor http://en.wikipedia.org/wiki/Hydrogen_economy Environmental Concerns Fossil fuel reforming (a way of hydrogen ...
Date added: February 27, 2012 - Views: 32
Unit I * * * * * * Motors are the "work horses" of HEV drive systems. In an HEV, an electric traction motor converts electrical energy from the energy storage unit to mechanical energy that drives the wheels of the vehicle.
Date added: March 9, 2014 - Views: 17
The Problems of Motor Drive and Generation Systems: Managed by UT-Battelle for the U.S. Department of Energy. Rare ... These magnets have operating temperature limitations. The cost of electric vehicle traction drive systems (motor + power electronics) is too high ($36.6/kW -- 2006 Camry versus ...
Date added: August 30, 2014 - Views: 1
Plug in Series Hybrid System Fig 1. Schematic of plug-in series HEV Electric Power Drive Power Traction motor Electric Motor Power Converter Generator
Date added: August 30, 2014 - Views: 1
Here wheels and traction motor are detached from bogie and send them to respective section, where overhauling of parts is done. ... In rewinding section winding of aux motors and traction motors field winding if damaged or burned are rewound or replaced.
Date added: July 24, 2014 - Views: 4
Promotion of Electric Vehicles in Korea Speaker : Yeol-San SEONG ... 1.350 kg Transmission Manual 5 speed Electric system Traction motor 15 kW Single Motor Pb-battery 120 V - 200 Ah 2. Status of EV : Leo Motors of Korea 2. Status of EV : Hyundai Motor Co. of Korea Toyota, ...
Date added: July 19, 2012 - Views: 13
Diesel/Electric Multiple Unit A Modern Light Rail Vehicle CAMDEN – TRENTON RIVER LINE Concept Developed by a Stadler & Bombardier consortium Manufactured and partially tested in Switzerland & Germany 70% low floor, double articulated LRV, with 3 carbody sections, and 3 trucks, End sections for ...
Date added: September 8, 2011 - Views: 128
AC Motor Learning objective At the completion of this lesson, the student will be able to: Understand the definition of an Electric Motor Identify components of an Electric Motor Explain Basic Electric Motor Operation Understand Electric Motor Issues AC Technology - Overview AC induction motor ...
Date added: December 10, 2013 - Views: 18
Interest in Multi-phase motor drives has considerably increased during last few years. The main applications of multi-phase machines are in electric traction, electric vehicles, and hybrid vehicles.
Date added: October 21, 2011 - Views: 39
SVE ‘s mission is to develop a new electric traction system that can be adapted to most vehicles. ... This version can also be used on “pure electric traction” mode. Thermal motor Electric motor + ...
Date added: February 3, 2012 - Views: 19
Induction Motor Drive Why induction motor (IM)? Robust; No brushes. No contacts on rotor shaft High Power/Weight, Lower Cost/Power ratios ... Roller table, Paper mills, Traction, Electric vehicles, Elevators, pulleys, Air-conditioning and any industrial process that requires variable-speed ...
Date added: October 18, 2011 - Views: 150
ELECTRIC VEHICLE TECHNOLOGY David Brandt, P.E. The Basics: EV: electric vehicle Are EV’s practical? Golf courses and airports have thought so for many years.
Date added: October 31, 2011 - Views: 123
protection against electric shock Heiko Mertens chairman of GRSP inf. group on electric ... equipped with one or more traction motor(s) operated by electric power and not permanently connected to the grid and the high voltage components and systems which are galvanically connected to the high ...
Date added: December 10, 2013 - Views: 14
Electric Vehicles and . Economic Opportunity. Anne Fritzel, ... it is propelled by an electric motor powered by a battery charged from the grid when the vehicle is stationary. ... thereby further increasing the efficiency of electric traction. ...
Date added: June 25, 2012 - Views: 44
High efficiency motors typically contain about 20% more copper than standard ... The motor will then require less current to drive the load ... vacuum cleaners, vacuum pumps, HVAC, variable-speed drive systems, machine-tools, automation, traction, etc. T(N.m) n(rpm) ideal. a. b. c. Torque Speed ...
Date added: March 1, 2014 - Views: 12
... Models Example 2.8 Signal-Flow Graph Models Example 2.10 Signal-Flow Graph Models Design Examples Speed control of an electric traction motor.
Date added: September 19, 2013 - Views: 9
development and test of a kinetic accumulator of electric energy for an hybrid electrical vehicle r. bosch, e. frias & r. garrigosa departament d’enginyeria ... upc. fly wheel motor and generator control driver traction motor wheel ac generator hybrid series electrical vehicle acee 2.1.
Date added: July 18, 2013 - Views: 7
... RECHARGABLE Lithium-ion batteries are also an option for hybrids Apply the brake ---- Car’s electronics switch Electric Traction Motor to a generator Wheel spins – load applied (generates electricity to charge battery) Reverse torque applied to wheels ...
Date added: July 10, 2013 - Views: 14
Electric Motors Tier 2: Technology Module In order to create linear motion, rotational motion is often converted by means of rack and pinion systems or chain driven linear sliders.
Date added: October 6, 2011 - Views: 266
Title: Inverters and DC/DC Converters Subject: Hybrid/BEV Electrical Systems Author: Harold Davis Description: New material for 'Hybrid and Electric vehicles' course
Date added: August 24, 2014 - Views: 1
Principle of Operation of dc Machine ... n Torque, T T = ka a Vt = Ea + Ra Ia Ea = ka m Example 12-3 page 553 SERIES DC MOTOR Used in electric traction applications and overhead cranes , due to their high starting torque characteristics. Vt = Ea + ...
Date added: December 20, 2013 - Views: 21
... 2013 Engine Engine Oil Traction Motor Gearbox Battery Electric vs. Diesel Engine Components Fuel Systems Exhaust Systems Belts Alternator Retarder Lifetime Maintenance Costs for an Electric Bus Are Less than Diesel * US National Transit Database, ...
Date added: February 11, 2014 - Views: 2
Traction Motor. Traction motors are provided on the axles to give the final drive. These motors were traditionally DC. Fuel Tank. The fuel tank is normally under the loco frame and will have a capacity of 3000 lts. Air Reservoirs.
Date added: May 22, 2014 - Views: 4
... separate traction motors propel the vehicle No mechanical connection between the ... vehicle and drive the generator to change the battery pack at same time Power splitter is used to transfer engine and electric motor power through the drive train Series/Parallel Hybrid Hybrid ...
Date added: December 1, 2013 - Views: 17
Dealer Presented Training FBC15N, FBC18N, FBC18LN, FBC20N, FBC25N, FBC25EN, FBC25LN, FBC30N, FBC30LN Course Number 2333 Electric Motor Presentation Level 1
Date added: December 5, 2013 - Views: 6
(Electric Ducted Fan) Model Flying ... Larger 15+ lb. fiberglass/composite EDFs have also gained traction in the hobby – even rivaling ... Typical EDF Setup Fan unit (rotor, housing, collar, rotor plug) Brushless motor (size/KV depends on fan diameter) Brushless ESC - max amperage ...
Date added: January 28, 2012 - Views: 80
... Traction Sheave, Brake, ... Brake Solenoid Self-Cooling Motor Accessible Lifting Lugs Thermal Sensing Device 400 Series 500 Series 800 Series * Gearless AC PM Overview Top 10 Important Features about AC PM Technology ... and more actual mechanical work per kW/h of electricity consumed. 4.
Date added: October 8, 2011 - Views: 9
Because of electric motor assistance, the engine can run at peak efficiency more often. ... The onboard computer shifts power from the engine and to and from (using the traction battery’s power) the motor/generators, ...
Date added: August 16, 2011 - Views: 114
Glossary Traction control system A computer-controlled system that prevents the vehicle’s wheels from spinning and losing traction under hard acceleration. ... Glossary Starting motor An electric motor that uses a gear drive to crank (start) the engine.
Date added: November 27, 2012 - Views: 371