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: 250
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: 251
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: 48
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: 53
Introduction. Act of drawing or state of being drawn propulsion of vehicle is called tractions. There are various systems of traction prevailing in our country such as steam engine drive, electric drive.
Date added: May 3, 2013 - Views: 54
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: 26
Motors are the "work horses" of Hybrid Electric Vehicle drive systems. The electric traction motor drives the wheels of the vehicle. Unlike a traditional vehicle, where the engine must "ramp up" before full torque can be provided, an electric motor provides full torque at low speeds.
Date added: January 17, 2014 - Views: 14
... -effective electric vehicles today by utilizing our advanced propulsion systems in our own line of affordably-priced battery electric vehicles ... Green Vehicles and Dahl-Beck Electric will expand traction motor manufacturing operations building a major U.S. source for the next ...
Date added: September 12, 2011 - Views: 66
Tri-Service Power Expo 16 July 2003 Scott Doudna HE HMMWV Engineer PM Light ... 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: 32
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: 85
Evolution of U.S. Intra-Urban Transport Eras of Change Four Eras of Intra-Metro Growth and Transport Development I Walking-Horsecar Era (1800-1890) ... Invention of electric traction motor stimulated growth of electric trolleys 2.
Date added: October 30, 2011 - Views: 19
... is a synchronous electric motor which is powered by direct-current electricity (DC) and which has an ... high efficiency over a wide speed range, and simplicity in control. These drives are suitable for electric vehicles, electric traction applications, automotive applications ...
Date added: November 10, 2011 - Views: 214
A traction motor is an electric motor used to rotate drive wheels and propel the ... Presentation PowerPoint Presentation PowerPoint Presentation PowerPoint Presentation CLASSIFICATIONS OF HYBRID-ELECTRIC VEHICLES Figure 2–4 This diagram shows the components included in a typical series ...
Date added: October 17, 2013 - Views: 17
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
The ultimate application is electric traction (but it is not really the most important!). Why 42 V? When electricity is used to power ... Major Applications Electric power steering. Two forms: assist pump and direct electric. The assist pump uses an electric motor to drive a conventional ...
Date added: June 20, 2013 - Views: 25
Regenerative braking systems reclaim and storing the kinetic energy in a reusable manner Many modern electric ... 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 ...
Date added: March 13, 2013 - Views: 182
Mechanical, electric and electronic losses are proportional to torque or current flow. ... Discussion History Otis Patent 1861 History Otis DC Elevator Motor Circa 1889 History Otis No. 1 Geared DC Machine with DC Motor Otis Gearless DC Machine M-G Set Controls (Otis ...
Date added: September 19, 2011 - Views: 119
Evidence Opposing Hydrogen Power Requires an input of energy just to create hydrogen Hydrogen is not readily available Hydrogen is normally a gas hard to handle More ... using that to be power an electric traction motor http://en.wikipedia.org/wiki/Hydrogen _economy Environmental ...
Date added: February 27, 2012 - Views: 28
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
The centerpiece of the current braking systems is a hydraulic assembly under the hood of the vehicle that brings ... Control of the electric motor actuator is performed by the ... thus enabling simpler integration of higher-level functions,such as traction control and vehicle ...
Date added: April 17, 2013 - Views: 37
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: 13
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: 16
... 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: 128
SPM and IPM synchronous motors have been thoroughly compared, for application to electric traction: The SPM motor has concentrated windings and a . simpler . construction. With equal active parts size and cooling . the two motors give the same continuous .
Date added: December 28, 2013 - Views: 7
The main applications of multi-phase machines are in electric traction, electric vehicles, ... 2005 pp30-37  Gao Yuan and Parsa L., Modified Direct Torque Control of Fie-phase Permanent Magnet Synchronous motor Drives, Applied Power Electronics Conference APEC 2007 pp1428-1437  ...
Date added: October 21, 2011 - Views: 37
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: 116
In this section relating traction motor all maintenance including bearing and armature maintenance is carried out. ... Electric Traction Railways (Sir Philip Dawson’s) THANK YOU. Author: swmi Created Date: 03/26/2013 09:30:39 Title: A Training Report on
Date added: July 24, 2014 - Views: 1
Primary Power Electronics Content Main traction drive inverter (bidirectional) ... 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. Generator power on the order of 40 kW.
Date added: October 10, 2011 - Views: 76
... 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
Importance Basics Drive Types Resources Traction Mobility Speed Timing Importance The best drive train… is more important than anything else on the robot meets your strategy goals can be built with your resources rarely needs maintenance can be fixed within 4 minutes is more important than ...
Date added: December 16, 2011 - Views: 57
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: 113
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: 8
Induction Motor Drive Why induction motor (IM)? Robust; No brushes. No contacts on rotor shaft ... Paper mills, Traction, Electric vehicles, Elevators, pulleys, Air-conditioning and any industrial process that requires variable-speed operation.
Date added: October 18, 2011 - Views: 133
0507 TRACTION MOTOR. 0508 SLIP-SLIDE CONTROL. 06 MECHANICAL BRAKE. 0601 BRAKE EQUIPMENT. 0602 FRICTION PARTS. ... 0.00 0.00 0.00 05 TRACTION. Including electric brake. 0503 I-----MAIN TRANSFORMER. 0.00 050301 I. I-----Transformer. 0.00 050302 ...
Date added: January 2, 2013 - Views: 70
Diesel/Electric Multiple Unit A Modern Light Rail Vehicle ... Direct coupled with AC Generator Power for propulsion: 625 HP (460 kW) Max. output power at 2100 rpm: 750 HP (550 kW) Traction Generator Unit: AC Synchronous generator, ... (motor car +motor car) Siemens DESIRO ...
Date added: September 8, 2011 - Views: 116
* AQ In addition to stimulating the economy through electric plant expansion, ... 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 ...
Date added: February 11, 2014 - Views: 2
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: 11
Summarize why electric and electronic devices have replaced many mechanical devices in ... Glossary Starting motor An electric motor that uses a gear drive to crank (start ... Glossary Traction control system A computer-controlled system that prevents the vehicle’s wheels from spinning and ...
Date added: November 27, 2012 - Views: 363
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: 37
... RECHARGABLE Lithium-ion batteries are also an option for hybrids Apply the brake ---- Car’s electronics switch Electric Traction Motor to a generator Wheel ... transfer the gas tanks and the fuel cell to the car chassis Connect the banana plugs from the motor to the fuel cell ...
Date added: July 10, 2013 - Views: 10
... Traction Sheave, Brake, and Encoder provided Nearly Maintenance Free ... 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 1.
Date added: October 8, 2011 - Views: 9
... but cannot do both simultaneously Parallel Hybrid Series/Parallel Hybrid Separate generator and traction motor(s) ... transfer engine and electric motor power through the drive train Series/Parallel ... Uses conventional 12-volt battery Maintains computer memory Provides low ...
Date added: December 1, 2013 - Views: 12
... the IGBT package (L and C) the cables and motor measurements and modeling Shielded & unshielded cable Ferrites Document ... Electronics: Converters, Applications and Design, New York: Wiley, 1989. Pak, T.T., “EMI Investigation of a Hybrid Electric Vehicle Traction Drive.” Masters ...
Date added: August 4, 2013 - Views: 19
The motor will then require less current to drive the load and thereby reduce I2R ... 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 Curve. Synchronous Reluctance ... Ecodesign of Electric Motors
Date added: March 1, 2014 - Views: 8
... of the various hybrid-specific control modules on hybrid vehicles Explain that the TCM adjusts contributions of the traction motor and ... Course Description Prerequisite Requirements Course Requirements Course Objectives Course Agenda History of Ford Electric and Hybrid ...
Date added: October 30, 2011 - Views: 60
... Wind Biomass Hydrogen fuel Geothermal Decentralized power systems Doing more with less Energy efficiency is the ... Fuel Combustion engine A Fuel tank B Electric motor C Battery bank D ... C Turbo compressor D Traction inverter E Electric motor / transaxle Fuel Cell Cars 1 ...
Date added: May 2, 2013 - Views: 19
The sheave is driven by an electric motor, either directly or through a geared trans- mission. ... A machine room-less elevator is a traction elevator system using special materials and improved electric motors that require little space, ...
Date added: December 28, 2013 - Views: 3
Parallel and serial hybrids In a parallel system the ICE and the electric motor can transmit the power to ... 16 sec Costs: Prototype: Field-test of 60 cars since 2002. GM´s Chevrolet Equinox Fuel Cell Electric traction: 73 kw 3-Phase asynchronous motor. 94 kw max. Nominal Torque 320 Nm. Fuel ...
Date added: May 8, 2012 - Views: 42
Electric motor: Traction drive provides additional power for passing and acceleration; excess energy recovered during braking is used to help power motor. Fuel Electricity Fig. 17-8, ...
Date added: June 12, 2012 - Views: 58
Introduction to EDF (Electric Ducted Fan) Model ... Larger 15+ lb. fiberglass/composite EDFs have also gained traction in the hobby – even rivaling ... With 10V going to the motor, the RPM would be 40,000. EDFs max out around 50-65k RPM. Must scale the motor and battery to match the EDF unit ...
Date added: January 28, 2012 - Views: 71