O SlideShare utiliza cookies para otimizar a funcionalidade e o desempenho do site, assim como para apresentar publicidade mais relevante aos nossos usuários. Se você continuar a navegar o site, você aceita o uso de cookies. Leia nosso Contrato do Usuário e nossa Política de Privacidade.
O SlideShare utiliza cookies para otimizar a funcionalidade e o desempenho do site, assim como para apresentar publicidade mais relevante aos nossos usuários. Se você continuar a utilizar o site, você aceita o uso de cookies. Leia nossa Política de Privacidade e nosso Contrato do Usuário para obter mais detalhes.
THE CENTRAL QUESTION
There are lots of people who don't know very much at all about electric vehicles. Sure they've heard the hype and they've listened to the criticism, but what are EVs anyway?
A discussion of the differences between electric vehicles (EVs) and internal combustion engine (ICE) vehicles is presented. The basic components of the ICE vehicle are discussed and the overall simplicity of EVs is emphasized. To obtain a copy of the EVU study guide for this and other available EVU courses, please complete the form on this page.
Hi. I’m Roger Pressman and I’ll be your guide as you begin your journey through Evannex University. Our goal is to help you learn about electric vehicles (EVs as they’re called) by presenting a series of mini-courses that touch on a variety of important aspects of EVs.
So … let’s begin.
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.
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.
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 century— better reliability, better fuel economy, lower emissions—and that’s 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.
If you believe some of the negative hype that’s out there,
>> EVs are unproven, >> scary, >> have too little range, >> and are really nothing more than a golf car.
They’re 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 can’t compete against ICE vehicles.
But is any of that true? Let’s see.
EVs are new tech, right?
>> EVs are high tech, nut they’re hardly new.
>> It might surprise you to learn that EVs have been around for over 100 years!
Here’s 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.
But by the 1920s, EVs had faded.
>> Why did ICE cars win out?
>> as roads improved, people wanted to drive further and EVs didn’t 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 cars—a 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.
So … EVs were big a hundred years ago, and now, they’re 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.
It’s really a very simple system, especially when you compare it to an ICE vehicle. Think about ICE for a moment – what’s Missing?
There are a lot of things that are missing when you compare an EV to an ICE car. In an EV there is no
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 …
The stuff that’s 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 consumables—means less continuing expense
>> But in addition to simplicity, you get >> More, not less, convenience You fill your EV at home—at night ,while your sleeping It’s “full” every morning, every day No more stops at a filling station >> Energy efficiency —means lower fueling costs, a lot lower! >> Environmentally friendly —means zero emissions
It’s a proven technology, not scary at all.
There’s much, much more to say about EVs, but we’ve done enough for a brief introduction. We hope you’ll explore other EVU mini-courses. Like this one, they’re short and to the point, focused on a specific aspect of EVs.
If you spend just a little time, you’ll be be better able to understand and evaluate EVs, and ultimately, purchase an electric vehicle, if you don’t already own one.
But before we finish this mini-course, let’s summarize.
>> EVs introduce a new jargon, and some new ideas >> But EVs aren’t new >> They were the dominant vehicle 100 years ago, and >> Today, they’re beginning to challenge ICE cars yet again
>> They’re compelling because they’re 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.
Electric Vehicle University - 101 Introduction
This course is presented as part of
Evannex University—a free, open
learning environment that presents
concise, video-based mini-courses for
those who have interest in electric
vehicles (EVs) …
Others incl Evs
• 99% of the marketplace
• Many improvements:
• better reliability
• better fuel economy
• lower emissions
• But EVs are coming on
• battery tech
• manufacturing tech
“… too little range”
“… a golf cart”
Too often, the image people have …
EVs—New Tech, Right?
EVs have been around for over 100
EVs were among the earliest
EVs held many land speed and
EVs out-sold gasoline-powered
Then why did ICE prevail?
ICE vehicles won out because:
The electric starter
Mass production made them
… simpler … a lot simpler …
Simple is Good
In addition …
More, not less, convenience
It’s proven, not scary.
EVs introduce a new jargon, new ideas
But EVs aren’t new
Dominant vehicle 100 years ago
Today, they’re beginning to challenge ICE cars yet
“Simplicity is the ultimate sophistication”
… 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,