Electric car question
6 years ago
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- 6 years ago
- 6 years agolast modified: 6 years ago
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Obvious Question About Run Away Cars (Like Toyota)
Comments (25)Every electrical motor has a maximum rpm that it can turn without sustaining damage. Once that speed is exceeded, centrifugal force will pull the windings from the armature and they will bind into the stator. In the case of the Prius transaxle we are actually talking about a rotor assembly that has permanent magnets attached to it. Exceed the rated speed of that rotor and it will grenade. The engineers are correct. http://eahart.com/prius/psd/ In order for the gas engine to propel the car, MG1 actually has to be a generator and provide resistance for the engine to push against, as well as MG2 being a motor that helps the gas engine push the car. Using the java applets on the site I provided you get to see the normal operation of the motors in the transaxle, and how they work together. Take note there are times that MG1 actually is forced to spin backwards. The Prius has a maximum vehicle speed of 94mph, with the primary reason being risking over-revving the electric motors and causing a catastrophic failure of the transaxle. Here is a link that might be useful: Prius Power Split Device....See MoreBeginning Car/ Car Insurance questions.
Comments (8)Your best bet in a used car will be a well-maintained American car. I don't want to get into the U.S./rest of the world "discussion" being held on other threads. I'll just say that proper maintenance has more to do with a car's trouble-free operation than where it is made. Right now, there are some decent American cars out there, but perception has not caught up with the reality, so American cars suffer more depreciation than many foreign cars. As a buyer of a used car, you can take advantage of that. Some of the cars you might want to look at include the Ford Taurus, or just anything midsize or larger from GM. I'm guessing that, since you got to the age of 16 without being a "gearhead," you mostly want a comfortable, reliable car. These will do the job. They shouldn't cost a fortune for insurance, either. Mikie is right -- even if you're paying for your own insurance, it will be cheaper to piggyback on your parents' policy than it will be for you to go solo. Ask about discounts if you get good grades in school or are willing to drive only a certain number of miles per month, etc. Finally, what else I wish I'd known about cars at your age? Having a car is a joy and a privilege -- and a responsibility. As a teenager, you have the benefit of quick reflexes and (I hope) formal training. You can be an excellent driver. But there's no substitute for experience -- especially at night in the rain and on icy roads. I knew how to steer out of a skid -- until the first time I found myself in one and narrowly missed a fence as I spun into a farmer's field. It's different when it really happens. Don't fall into the trap of thinking that you're immortal (every teenager thinks so; so did I). You're in control of almost two tons of metal and glass and plastic, so be careful. When I was 16, nobody had cell phones and we were lucky if the car had an FM radio, nevermind multi-channel stereo systems and iPod links and the like. I know teenagers are better at multi-tasking than they used to be, but you still have one primary task in a car -- driving. Don't be distracted by fiddling with the stereo or talking with friends. It's okay to concentrate on driving. Professional auto racers do. Have fun! Getting my first car was a blast. I hope you find one you really like and have many happy miles with it....See MoreQuestions about hybrid electric water heaters + electric tankless
Comments (1)Electric tankless will require an upgrade as well ... on the electric circuit. A typical electric tank takes a 25 to 30 amp circuit. Electric tankless can be high as 120 amps depending on the needed capacity. Capacity in tankless terms means the heating power required to raise the desired rate of water flow (gallons per minute) from the starting point (lowest tap-water temp experienced during the winter season) to the desired output temperature (typically at least 120ðF for a kitchen with a dishwasher). If your house has a large-enough existing electric drop from the pole, then you'd only have to run a larger circuit from the breaker box. Otherwise you'd also have to upgrade the service drop from the pole....See MoreDo you have an electric car?
Comments (34)"Elmer, I wasn't talking about sport cars. I was talking about a car you can use 24/7 365 days a year." Plenty of people drive high performance cars 24/7, 365 days a year. Not everyone hauls heavy loads of materials or possessions in their cars nor drives on back roads nor in bad weather. I don't ever do anything like that myself. I understand, for those circumstances, something different may be more suitable. Every kind of vehicle is a compromise of factors - larger vehicles some think to be essential that get poor gas mileage, are difficult to park, awkward for drivers to maneuver, with poor handling characteristics vs smaller ones that have limited interior space, smaller trunks, but get much better mileage and are more environmentally friendly. And those in between with some characteristics of both extremes, depending upon the needs and objectives (real or perceived) of the owner....See More- 6 years ago
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