Duty of Real I. C. Engines As an Automotive Prime Mover

Slides:

Advertisements

Similar presentations

Motion and Force A. Motion 1. Motion is a change in position

Advertisements

Engine Geometry BC L TC l VC s a q B

Vehicle Dynamics CEE 320 Steve Muench.

Effect of Piston Dwell on Engine Performance P M V Subbarao Professor Mechanical Engineering Department Sufficiency of time to Execute a Process…..

© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois.

Geometric & Kinematic Models for An I.C. Engine P M V Subbarao Professor Mechanical Engineering Department Creation of Infrastructure to Facilitate Thermodynamic.

Kinematic Analysis for A Conventional I.C. Engine P M V Subbarao Professor Mechanical Engineering Department Creation of Instantaneous Volume, Surface.

Energy Consumption & Power Requirements of A Vehicle

1 Q0 A skydiver jumps off a plane at 3000m. He falls with his belly “facing down” to 1000m altitude before opening up his parachute. Which is the qualitatively.

Cylinder Kinematics : A Thinking Process of Artificial Animals P M V Subbarao Professor Mechanical Engineering Department Means to Control Displacement,

Real I. C. Engines Vs Ideal Models P M V Subbarao Professor Mechanical Engineering Department Ideal Cycles Set Performance Limits !!! Real Engines are.

PERFORMANCES IN ELECTRIC AUTOMOBILES Department of Mechanical Engineering University of Zaragoza 1 ANALYSIS OF PERFORMANCES IN ELECTRIC AUTOMOBILES PROF.

Resistance Forces on A Vehicle P M V Subbarao Professor Mechanical Engineering Department Estimation of Vehicle Demands ….

Dynamics of a car/airplane and fuel economy. Energy in Transportation All transportation systems need energy to –accelerate up to speed. –Make up for.

Engine Size and Measurements

Physics and Astronomy Outreach Program at the University of British Columbia Physics and Astronomy Outreach Program at the University of British Columbia.

12. TRACTIVE EFFORT AND TRACTIVE RESISTANCE

CEE 320 Spring 2008 Vehicle Dynamics Example Problems.

Selection of Geometric Ratios for I.C. Engines P M V Subbarao Professor Mechanical Engineering Department Control of Micro Actions through Macro Features…..

TRANSMISSION SYSTEM (GEAR BOX)

Work Distribution Analysis of I.C. Engine Cycles P M V Subbarao Professor Mechanical Engineering Department Find true Scope for Development….

CEE 320 Fall 2008 Road Vehicle Performance CEE 320 Anne Goodchild.

PRODUCT ORIENTATION MODULE. DEFINITION OF TECHNICAL TERMS Kilometer Per Hour (KPH) - unit measurement of velocity which indicates the number of kilometers.

PERFORMANCES IN ELECTRIC AUTOMOBILES Department of Mechanical Engineering University of Zaragoza 1 ANALYSIS OF PERFORMANCES IN ELECTRIC AUTOMOBILES (II)

Vehicle Dynamics Example Problems

Measuring Engine Performance

Physics and Astronomy Outreach Program at the University of British Columbia Physics and Astronomy Outreach Program at the University of British Columbia.

Strategies for Complete Expansion in I.C. Engine P M V Subbarao Professor Mechanical Engineering Department Achieve Maximum Work Output….

Matching of Turbo-charger with I.C. Engine

Clues for Improvements in I. C. Engine Design

TRACTOR MECHANICS (Ch. 3)

Phenomenological Modeling of Internal Combustion Engines P M V Subbarao Professor Mechanical Engineering Department A method of inquiry based on the premise.

Vehicle Dynamics Term Project Driveline Modelling

What is the unit of force in the metric system? A) kilogram B) gram C) newton D) meter/second.

Resistance Forces on A Vehicle P M V Subbarao Professor Mechanical Engineering Department Estimation of Vehicle Demands ….

Power Requirements of A Vehicle P M V Subbarao Professor Mechanical Engineering Department Match the Horse to theCart ….

OICA CO 2 Impact through Weight Variation on Light duty Vehicles WLTP DTP6, Geneva OICA, Volkswagen WLTP-DTP-LabProcICE-076.

Engine Technology Gasoline Engine Work moving of an object against an opposing force by a push, pull or lift measured in terms of distance and force, or.

Energy Consumption & Power Requirements of A Vehicle

HEV Fundamentals Hybrid electric vehicles (HEVs) are vehicles that combine an internal combustion engine (ICE) with an electrical traction system. It usually.

Vehicle Dynamics.

Instantaneous Power Requirements of A Vehicle

C I Engines as Automotive Prime Movers & Clues for Improvements

12. TRACTIVE EFFORT AND TRACTIVE RESISTANCE

S I Engines as Automotive Prime Movers & Clues for Improvements

Forces and Motion

Strategies for Complete Expansion in I.C. Engine

Ideal but Practicable Cycles for I.C. Engines

Real I. C. Engines Vs Ideal Models

Mechanical Losses in An Engine

Electric Motors as Automotive Prime Movers

Performance of Electrical Vehicles

Transient Power of A Vehicle

Matching of Propulsion Systems for an Aircraft

Analysis of Rocket Propulsion

Introduction to Engine Parts, Operation and Function

POWERTRAINS By: Sunny Gharial.

Forces and Motion

Graphing Motion Walk Around

Creation of Cycles for Mobile Power Plants

Kinematics Formulae & Problems Day #1

Design & Performance of Components of Electrical Vehicles

P M V Subbarao Professor Mechanical Engineering Department

Electric Motors as Automotive Prime Movers

Hybrid Automotive Prime Movers

Japanese Fuel Efficiency Standard for Heavy Duty Vehicles

HDV CO2 Regulation in REPUBLIC OF KOREA

Ideal Otto Cycles for I.C. Engines

CO2 Dragster Vocabulary

Vehicle Dynamics.

Presentation transcript:

Duty of Real I. C. Engines As an Automotive Prime Mover P M V Subbarao Professor Mechanical Engineering Department Vehicle is Boss & Engine is the Servant!!!

Indian Urban Driving Cycle

Forces To be Overcome by an Automobile

Resistance Forces on A Vehicle The major components of the resisting forces to motion are comprised of : Acceleration forces (Faccel = ma & I forces) Aerodynamic loads (Faero) Gradeability requirements (Fgrade) Chassis losses (Froll resist ). The new A4 Sedan has the best drag coefficient in its class at 0.23, while Avant has cd 0.26. Its weight has been reduced by up to 120 kilograms.

Power Requirements Curves for An Accelerating vehicle 2.78m/s2 2.20m/s2 The A4 Sedan with quattro drive and 2.0 TFSI, the gasoline ultra model takes 7.3 seconds from 0 to 100 km/h 1.38m/s2 0.83m/s2

Vehicle Speed vs. Engine Speed = velocity , km/hr r wheel radius, m Ncrank crankshaft rpm i driveline slippage GO Overall gear reduction ratio

Characteristics of Real Engine at Maximum Fuel Consumption

Required Torque & Power at Wheels Tractive Effort demanded by a vehicle):

Calculation of Mileage of a Constant Speed Vehicle Cycle work to be provided by A Powering Engine: The speed of the vehicle in km/h is: Time required to travel 1 km distance by vehicle in hours: Work to be done by Engine for Unit Distance Travel by Vehicle Engine Fuel Consumption for Unit Distance Travel by Vehicle

Measure of fuel Economy In the NEDC (New European Driving Cycle), the 1.4 TFSI with S tronic consumes 4.9 liters per 100 kilometers. The Sedan with front-wheel drive and S tronic consumes 5.7 liters of fuel per 100 kilometers in the NEDC.

Displacement Work Devices for Execution of Macro Thermodynamic Operations Intake Stroke Combustion Products Exhaust Stroke Power Stroke Compression Stroke

Control System of A Conventional I.C. Engine Primary Thermodynamic Requirement: How to select other geometrical parameters?