EVsAn Introduction

EV-101

This course is presented as part of Evannex Universitya free, open learning environment that presents concise, video-based mini-courses for those who have interest in electric vehicles (EVs)

Welcome to Evannex University

Hi. Im Roger Pressman and Ill be your guide as you begin your journey through Evannex University. Our goal is to help you learn about electric vehicles (EVs as theyre called) by presenting a series of mini-courses that touch on a variety of important aspects of EVs.

So lets begin.

The Internal Combustion Engine (ICE)

It might seem odd to begin a curriculum about electric vehicles (Evs as we call them)

>> by talking about the internal combustion engine (often referred to as ICE)

But somehow the image on your screen seems appropriate.

The Internal Combustion Engine (ICE)

It might seem odd to begin a curriculum about electric vehicles (Evs as we call them) by talking about the internal combustion engine (often referred to as ICE)

But somehow the image on your screen seems appropriate.

ICE Vehicles

99% of the marketplace

Many improvements:better reliabilitybetter fuel economylower emissions

But EVs are coming onbattery techmanufacturing tech

Conventional, 20th century ICE vehicles are familiar.

>>They represent 99+ percent of the automotive marketplace world wide. Even if you're only in your mid-20s, it's likely that you've been driving an ICE car for more than a decade and doing it without giving a second thought to the technology under the hood.

>>To be sure, the internal combustion engine has improved dramatically in the past half centurybetter reliability, better fuel economy, lower emissionsand thats all good!

>> But EVs are coming on recent advances in >> battery technology, >> along with new manufacturing techniques and an emphasis on environmentally friendly vehicles, have opened the door for electric vehicles.

Electric Vehicles unproven! scary too little range a golf cart

Too often, the image people have

If you believe some of the negative hype thats out there,

>> EVs are unproven, >> scary, >> have too little range, >> and are really nothing more than a golf car.

Theyre just too different.

>> Until quite recently, too many people visualized something like the picture of your screen when the phrase electric vehicle was mentioned.

We we told EVs simply cant compete against ICE vehicles.

But is any of that true? Lets see.

EVsNew Tech, Right?Nope!EVs have been around for over 100 years!EVs were among the earliest automobilesEVs held many land speed and distance recordsEVs out-sold gasoline-powered vehicles.

EVs are new tech, right?

>> EVs are high tech, nut theyre hardly new.

>> It might surprise you to learn that EVs have been around for over 100 years!

Heres what Wikipedia has to say about early EVs: >> EVs were among the earliest automobiles >> In the early 1900s, EVs held many vehicle land speed and distance records >> and at one point in history, EVs out-sold gasoline-powered vehicles.

In fact, in 1900, 28 percent of the cars on the road in the USA were electric.

Then why did ICE prevail?ICE vehicles won out because:Improved roadsCheap gasolineThe electric starterThe mufflerMass production made them cheap

But by the 1920s, EVs had faded.

>> Why did ICE cars win out?

>> as roads improved, people wanted to drive further and EVs didnt have the range the people wanted>> the discovery of large oil reserves in TX, OK, and CA made gasoline cheap and ICE vehicles cheaper to operate

Surprisingly, 2 simple inventions gave ICE vehicles an advantage

>> the invention of the electric starter eliminated the need for hand cranking ICE carsa dangerous and difficult manuver>> and the invention of the muffler, reduce the deafeningl noise of early ICE cars

>> Finally, mass production of ICE vehicles by Henry Ford in 1913 gave ICE cars an price advantage.

EV BasicsBatteryElectric Motor(s)Control electronicsRegenerative braking

simpler a lot simpler

So EVs were big a hundred years ago, and now, theyre trying to be big again.

One thing was absolutely true in 1910 and continues to be true today : electric vehicles are considerably simpler than ICE vehicles.

In essence, the EV is composed of four major components:

>> a battery, always rechargable and most likley, lithium Ion >> one or more electric motors,>> control electronics that pass the power stored in the battery to the electric motor>> And something called regenerative breaking, a way to recapture energy from the motion of the car and use it to recharge the battery.

Its really a very simple system, especially when you compare it to an ICE vehicle. Think about ICE for a moment whats Missing?

Whats Missing?Crank shaft, pistons, cylinders, connecting rods, fuel injection system, exhaust system (manifold, pipes, muffler, tail pipe), transmission (!), radiator, alternator, oil pump, timing belt, Consumables: belts, engine oil, oil filter, antifreeze, air filter,

There are a lot of things that are missing when you compare an EV to an ICE car. In an EV there is no

>> Crank shaft, pistons, cylinders, connecting rods, fuel injection system, exhaust system (manifold, pipes, muffler, tail pipe), transmission (!), radiator, alternator, oil pump, timing belt, >> Consumables: belts, engine oil, oil filter, antifreeze, air filter,

In fact, for some Evs, the only consumable is your windshield washer fluid and the only regularly replaceable parts are your windshield wipers and tires

Simple is GoodFewer parts Fewer consumablesIn addition More, not less, convenienceEnergy efficientEnvironmentally friendlyIts proven, not scary.

The stuff thats missing from an EV indicates one very important thing. EVs are simple, and simple is good.

>> Fewer parts means fewer things than can break>> Fewer consumablesmeans less continuing expense

>> But in addition to simplicity, you get>> More, not less, convenienceYou fill your EV at homeat night ,while your sleepingIts full every morning, every dayNo more stops at a filling station>> Energy efficiency means lower fueling costs, a lot lower!>> Environmentally friendly means zero emissions

Its a proven technology, not scary at all.

SummaryEVs introduce a new jargon, new ideasBut EVs arent newDominant vehicle 100 years agoToday, theyre beginning to challenge ICE cars yet againSimplicity is the ultimate sophistication

Theres much, much more to say about EVs, but weve done enough for a brief introduction. We hope youll explore other EVU mini-courses. Like this one, theyre short and to the point, focused on a specific aspect of EVs.

If you spend just a little time, youll be be better able to understand and evaluate EVs, and ultimately, purchase an electric vehicle, if you dont already own one.

But before we finish this mini-course, lets summarize.

>> EVs introduce a new jargon, and some new ideas>> But EVs arent new>> They were the dominant vehicle 100 years ago, and>> Today, theyre beginning to challenge ICE cars yet again

>> Theyre compelling because theyre simple and as Leonardo said: Simplicity is the ultimate sophistication

Thanks for spending your time. We hope to see you in our other EVU mini-courses.

a free study guide for all EVU mini-courses is available for download from our website For a complete list of mini-courses and the study guide, visit: www.evannex.com

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