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Unit 29,[object Object],Hybrid Electric Vehicles,[object Object]
Hybrids,[object Object]
Hybrid Electric Vehicles,[object Object],Hybrid Electric Vehicles are all the rage now.,[object Object],Higher gas prices following the boom of sales of gas-guzzling large SUV’s have caused Americans a lot of pain at the pump.,[object Object]
Hybrids Might Be For You IF….,[object Object],If you are interested in saving some money andreducing pollution and greenhouse gases…Hybrid Electric Vehicles might just be for you!,[object Object]
So, What is a Hybrid Anyways?,[object Object],Hybrid Electric Vehicles combine a small traditional gasoline powered engine with a battery-powered electric motor.,[object Object],Most of the driving uses the electric motor, especially while driving under normal conditions and at moderate speed.,[object Object],The energy comes from the ,[object Object],	battery.,[object Object]
So, Why a Gasoline Engine Too?,[object Object],The small 4-cylinder gasoline engine kicks in when the vehicle needs extra power.,[object Object],This includes accelerating rapidly (such as to pass someone), driving up steep hills, or driving at highway speeds above 55 mph.,[object Object]
How Does Battery Have Power?,[object Object],When the gasoline engine kicks on, it also turns a generator to generate electricity to recharge the battery.,[object Object],If your battery starts to get low, the gasoline engine will sometimes come on even under normal conditions to recharge the battery.,[object Object]
Getting Energy Back,[object Object],Hybrids can also generate electricity through regenerative breaking. Basically, you recover some of the energy of motion when you break and send it back to the battery.,[object Object]
Plug-in Hybrids,[object Object],Some newer hybrids can be plugged in at home to recharge the battery so you do not need use gasoline to do it.,[object Object],This makes it even more fuel efficient!,[object Object]
The Problem With Gasoline Engines,[object Object],Most cars have gasoline engines that are larger and less efficient than they need to be under normal conditions.,[object Object],That is because even if you usually drive 35 mph in a flat area, your car needs to be able to drive 75 mph up a mountain road, just in case.,[object Object]
Why Hybrids Help,[object Object],Hybrids on the other hand have small engines. Thus, they are more efficient at using the energy under normal conditions.,[object Object],It also only kicks in when it is needed.,[object Object],Thus, your fuel efficiency is significantly higher than a comparable gasoline only vehicle.,[object Object]
How much better are hybrids?,[object Object],A 2010 Toyota Prius gets 51 city/48 hwy mpg,[object Object],A 2010 Honda Civic gets 26 city / 34 hwy mpg,[object Object],That 25 mpg difference, if driven 15,000 mi/yr at around $3.20/gallon will save you $905/year in gas and saves 287 gallons of gas from being burned and polluting our air.,[object Object]
What’s up with better City and Hwy?,[object Object],You may have noticed that the hybrids get better gas mileage in the city than the highway, which is opposite of how gasoline vehicles get.,[object Object],The reason is that in the city, the electric motor is doing most of the work and once you get on the highway, the gasoline engine has to kick in more.,[object Object],Traditional cars do better on the highway because their larger engines are now working their most efficient state.,[object Object],Still, Hybrids do get better highway mileage because even with the small gasoline engine on, much of the work is still done by the electric motor powered by the battery.,[object Object]

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Unit 29 Hybrid Electric Vehicles

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