Electric Motor Gear Ratio

Understanding Inertia Ratio And Its Effect On Machine Performance
High load-to-motor inertia ratios push resonance and anti-resonance peaks to lower frequencies, shrinking the operating bandwidth of the machine. Gearboxes can reduce the inertia ratio,enabling higher-speed operation and/or the use of smaller, cheaper motors. ... Doc Retrieval

SPECIFICATION 3000 V DC 5400 RAIL HP ELECTRIC LOCOMOTIVE ...
The electric locomotive covered by this specification is designed to operate on 56-1/2 inch gage track from 3000-volt direct-current power supplied through an overhead contact wire. ... Content Retrieval

Gearmotors & Speed Reducers - Baldor.com
Gearmotors & Speed Reducers. b www.baldor.com Worm Gear Reducers Ratio Multipliers Inline Helical Standard finish Washdown poxy Washdown stainless steel Universal Series. wwwb.com 1 NOTE: Vertical motor below gearhead not recommended. Avoiding those positions where the high speed oil ... Read Full Source

DC Motor / Propeller Matching - MIT
Motor Parameters The behavior of an electric motor is fairly accurately described by the equivalent circuit model shown in Figure 1. The internal back-EMF vm is proportional to the rotation rate Ω via the motor speed constant Kv. Applying the usual circuit equations, together with ... Fetch Content

Thus, a DC motor can be used at a voltage lower than the rat-ed voltage. But, below 1000 rpm, the speed becomes unstable, and the motor will not run smoothly. Speed reduction by means of a gear box results in increased torque. The reduction/increase is determined by the gear ratio and ef-ficiency of the gear box. ... Retrieve Full Source

Use Of A Continuously Variable Transmission To Optimize ...
Drive motor (related by a fixed gear ratio from sprockets or other gearing). An electric vehicle powertrain is not unlike a conventional automotive internal combustion engine powertrain; that is, the individual components and complete system have different efficiencies and performance characteristics at different motor speeds and load conditions. ... Retrieve Document

O Matter What Car You Have, Or Whether You Have The Latest
That getting your car's gear ratio right will go a long way to resolving them. We should define the term "gear ratio" right from the start. In its simplest form, it defines the relationship between any two gears. Usually this will be the "pinion" gear (found on a motor in electric cars and on the clutch bell of a nitro car) and the "spur" gear ... Get Content Here

Transmission (mechanics) - Wikipedia
Reversing can be incorporated by setting the epicyclic gear ratio somewhat higher than the lowest ratio of the CVT, providing a range of reverse ratios. Electric variable. The Electric Variable Transmission (EVT) combines a transmission with an electric motor to provide the illusion of a single CVT. ... Read Article

Bicycle Gearing - Wikipedia
Bicycle gearing is the aspect of a bicycle drivetrain that determines the relation between the cadence, the rate at which the rider pedals, and the rate at which the drive wheel turns.. On some bicycles, there is only one gear and the gear ratio is fixed.Many contemporary bicycles have multiple gears and thus multiple gear ratios. ... Read Article

MODELING, SIMULATION AND CONTROL OF HYBRID ELECTRIC VEHICLE ...
A high level modeling and simulation approach for vehicle and motor drive was taken to focus on motor operation and gear ratios from the electric to the mechanical drive system. Vehicle battery being the limiting factor in the range of the HEV vehicle, the energy usage ... Access This Document

GENERAL ELECTRIC COMPANY AMERICAN LOCOMOTIVE COMPANY
The diesel-electric system, all controlled by a single throttle, is inherently simple : an engine drives a generator which sends current to electric motors that are geared to the wheels. General Electric has issued this manual to help the operator by explaining how to operate the locomotive and how it operates. ... Fetch Doc

Gear Ratios & Torque - University Of Washington
A worm gear rotates one turn of the input shaft for each gear tooth of the output shaft. It can’t be back driven, which may be useful for a robot arm lifting something. It also has higher friction than other types of gears. The “Input” shaft is the one you are turning with the engine, a hand crank, an electric motor, or the steering wheel. ... Read More

Lesson 3 Understanding And Using DC Motor Specifications
Now we will consider the transmission gearing. The transmission (reduction) ratio is 19.7:1. Calculate the shaft speed by dividing the armature speed by the transmission ratio. This will yield the expected rotational speed of the Pittman gear head motor output shaft. RPM RPM Output Shaft Speed 257 19.7 5063.9 = = ... Access Full Source

DC Right Angle Gear Motor Series - Powerelectric.com
DC Right Angle Gear Motor Series Power Electric DC Geared Motors used in many applications 15300 25th Avenue North Plymouth, MN 55447 763-553-1090 ... Return Doc

XL Right Angle And Parallel Reducers And Gearmotors
XL Right Angle and Parallel Reducers and Gearmotors Contents 3. Output RPM and gear ratio. 4. Mounting position. 5. Any modifications or accessories. electric motor, 24 hours per day service and medium load classification). Equivalent load = 1500 in. lbs. ... Return Doc

THREE-SPEED TRANSMISSION SYSTEM FOR PURELY ELECTRIC VEHICLES
KEY WORDS :Electric vehicle, Transmission system, Motor efficiency, Gear ratio, Optimization 1. INTRODUCTION Purely electric vehicles (EVs) have become a highly popular topic in the last decade. EVs have attracted extensive attention from researchers in the fields of new energy and advanced automobile technology (Axsen and Kurani, 2008; Thomas ... Get Doc

Electric motor - Wikipedia
An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and winding currents to generate force in the form of rotation. ... Read Article

LEGO Mechanisms: Gears And Motors - Wellesley CS
Advances the meshed gear by a total of 24 teeth. Since the meshed gear has a total, it rotates exactly once. (We say this configuration has a 3:1 gear ratio.) Thus the 24-tooth gear rotates three times slower than the 8-tooth gear. Going from small gears to big gears lowers the speed of rotation by a factor equal to the gear ratio. ... Retrieve Here

HOW TO SET RC GEAR RATIOS - YouTube
Choosing a Brushless Motor for your RC Car Gear Mesh- How to Properly mesh RC Gears Electric Vehicles. How Your Gear Ratio Alters Speed & Acceleration on Racing Go Karts by ... View Video

Gear Motor TA Series Specifications - U.S. Tsubaki
Reduction ratio Lubricating method Shaft end key way Output shaft end Installation place Ambient temperature Ambient humidity Gear Motor TA Series Specifications GEAR MOTOR TA Series Special motor types (Applied to gear motors and gear motors with brakes) ... Read Content

2015 DOE Vehicle Technologies Office Annual Merit Review And ...
2015 DOE Vehicle Technologies Office Annual Merit • Close the performance gap with ICDVs by operating the motor at its peak efficiency region. Gear ratio sel., shift strategy. Business case, Concept development, trade off analysis. ... View Doc

Falk UltraMax Concentric Gear Drives - Rexnord
Falk Ultramax Concentric gear Drives Basic information momentary overloads for electric-motor-driven applications operating ten hours per gear Drive identification — Tables in this catalog identify gear drives by size, type and ratio . See Drive Nomenclature page 13 . ... Retrieve Content

One Motor Type Electric Vehicle Drive System - Ntnglobal.com
Ratio gear and the low reduction ratio gear, for either low or high speeds respectively, allows the maximum torque of the drive motor to be set at a lower value than that of a fixed-reduction-ratio motor without increasing the maximum motor rotational speed. This **EV System Division Driveline System Engineering Dept. ... Return Doc

STEP 1: Select The motor Size And gear ratio From The Torque
STEP 1: Select the motor size and gear ratio from the torque STEP 2: Confirm the permissible inertia J G of the motor selected is greater than load inertia J L (Watts) 1, 3 6 15 25 40 60, 90 200 ... Document Viewer