electric powered cars

[tumbaga]

I don't know how you'll be connecting the motor to the road but if you do a direct drive system to the wheels (like in-hub motors), 100hp motor will be equal to 100hp on the road.

That is compared to a standard engine rated at 100hp but only transmits around 75hp to the road because of transmission and accessory losses.

Plus the main advantage of an electric motor is the torque. In an engine, torque & hp rises with rpm. But in an electric motor, 100% torque is available from zero rpm. So you don't need a single 200hp electric motor. You can have sports car performance from twin 50 to 70 hp electric motors fitted in the wheel hubs.

You use a transmission just like regular cars, in fact you can use any transmission, or trans axle or for that matter. You can do direct drive but that would be inefficient. There is an interesting problem with motors is that starting is the most damaging to itself, there is an overshoot on voltage and current, more than 100% power for one instant, you also do not want the motor to work hard giving it shorter life. Working hard for electric means current and not voltage or HP.
Voltage will be constant except for the instant it turned on.

As soon as the motor touches the road it will draw current, the heavier the load the more current it will draw, the less life batteries will have and like I said the motor will not last as well.

[ehnriko]

[ame="http://www.youtube.com/watch?v=BrHXdM9f13k"]YouTube - Electric Drag racing: White Zombie[/ame]

[ROAA STUDIO]

nice youtube electric car video....

.

[ROAA STUDIO]

mga sir


ano po masasabi po nyo dto...?


http://www.conceptcarz.com/z18433/Pi...a-Nido-EV.aspx

[ghosthunter]

Looks fine... nothing outstanding. Typical 2 seat design electric car.

The Mitsubishi Miev looks better... seen the car on the road in new Zealand.

[niky]

Looks fine... nothing outstanding. Typical 2 seat design electric car.

The Mitsubishi Miev looks better... seen the car on the road in new Zealand.

It's actually quite pretty.

Problem with the iMIEV is it costs so much more than the Leaf, which is bigger and more useful.

Of course, they're still both sportscar money for a family car...

[ROAA STUDIO]

wishful thinking

sana po mag mura ang mga electric cars na binebenta dito sa atin...pataas nanaman po ang ang presyo ng fuel po.....

[ghosthunter]

wishful thinking

sana po mag mura ang mga electric cars na binebenta dito sa atin...pataas nanaman po ang ang presyo ng fuel po.....

The thing is, even if the electric car was "cheaper", would the filipinos buy it in the volume that would justify a local dealership? Given the electric car's shortcomings, it will still be a long way off.

Example, driving within Metro Manila, you will probably turn on the aircon and radio. Both consumes power from the battery pack. The car's normal 80 to 90 kilometer range gets cut down to maybe 60 km. And then going home at night would require the headlights turned on which reduces the range further to around 40km on a single charge.

Locally, our best option would be to go hybrid cars or alternative fuel cars. Right now, Auto-LPG is currently available in the metro and has been a practical solution for many people NOW. Don't have to wait for anything else to happen to save money on fuel.

So, is it wishful thinking or decisive action?

[ROAA STUDIO]

another wishful thinking

sana po me napakagaling na magconvert yung mga fuel powered engines natin na gawin electric powered engines.....

[ROAA STUDIO]

sir ghosthunter

kamusta po at tanong na din po kung natuloy po yung inyong nabanggit before......

Some time back I was thinking of developing a hybrid car and the platform of choice I thought of then was the Corolla AE89 because it was a simple platform, lightweight, it's plentiful and cheap to buy.

[ghosthunter]

sir ghosthunter

kamusta po at tanong na din po kung natuloy po yung inyong nabanggit before......

Some time back I was thinking of developing a hybrid car and the platform of choice I thought of then was the Corolla AE89 because it was a simple platform, lightweight, it's plentiful and cheap to buy.

This idea never left the paper. I did some of the preliminary research like required hardware and the costing to see if it would be economically viable for such to become a "conversion service" beyond just being a personal project and toy. Unfortunately, even at the height of gasoline prices then, it was not economically viable because of the high cost of conversion.

[ghosthunter]

another wishful thinking

sana po me napakagaling na magconvert yung mga fuel powered engines natin na gawin electric powered engines.....

In truth, converting any typical car into an electric car is not that difficult. The parts are practically off the shelf these days but the cost of conversion is still very high and the performance/range still needs much improvement. That means owning and driving a pure electric (converted) car, at this moment in time, will be a major lifestyle change for that person.

The simplest and direct way to convert a typical car to electric is to directly replace the engine with an electric motor bolted to the existing manual transmission. Aircon and powersteering are converted to electric as well and will have their own sub-systems to operate normally. From what I have read, the typical range for these types of conversions are under 100 kilometers without the electrical load from A/C or powersteering. Adding the load from accessories like powersteering, A/C, headlights, etc will greatly reduce the range.

Would you seriously consider daily driving a car that can run out of "juice" within 40 or 50 kilometers from a full charge?

[niky]

It's okay if all you're doing is a regular 10-15 km commute... but heavy mid-day traffic might be a difficult proposition due to the power drain of the AC. Even on the Prius, which has an ultra-efficient electric AC compressor, mid-day traffic is killer on the battery packs.

[ROAA STUDIO]

mga sir
can an electric powered car improve its mileage....a longer battery life.....? is it possible...?

[niky]

Yes. Through electronic charge controllers and temperature control. These are the heart and soul of modern EV development... proper electronics. Battery controllers, though, are freaking expensive.

[ghosthunter]

Aside from what Niky mentioned, there is also regenerative braking, solar panels on the roof, ultra-low rolling resistance tires, etc.

But the same issue, it makes the car expensive.

[ROAA STUDIO]

no.1 problem--is the high cost of conversion of engine to electric powered cars...

mga sir
tanong na rin po yung distance na mabyabyahe po ng electric powered cars ay pede na rin po bang humaba.... na makatulong po yung solar panels on the roof to recharge the batteries of the electric powered cars during daytime?

[ghosthunter]

mga sir
tanong na rin po yung distance na mabyabyahe po ng electric powered cars ay pede na rin po bang humaba.... na makatulong po yung solar panels on the roof to recharge the batteries of the electric powered cars during daytime?

Solar panels on the roof will only marginally increase the range by a small amount. It has been done to the Toyota Prius as an optional extra to extend it's electric mode driving range. Given the typical car roof is only (approximately) 1.5 square meters in area, it's not going to provide much power to make a major increase in driving range.

It's more practical to have a recharging station at the car's destinations if you want to increase the car's maximum driving range. Even with that, it will take many HOURS to have a significant recharge if the battery is low on power. If you work at the destination, then spending the next 8 hours at the location is fine but if you are traveling across the city and the charge gets low, you will find yourself stranded until the battery gets a significant recharge.

Fifth Gear on electric cars...
[ame=http://www.youtube.com/watch?v=2lNPWwPopRQ]‪Fifth Gear S17E03 Electric Car‬‏ - YouTube[/ame]

[ROAA STUDIO]

Solar panels on the roof will only marginally increase the range by a small amount. It has been done to the Toyota Prius as an optional extra to extend it's electric mode driving range. Given the typical car roof is only (approximately) 1.5 square meters in area, it's not going to provide much power to make a major increase in driving range.

It's more practical to have a recharging station at the car's destinations if you want to increase the car's maximum driving range. Even with that, it will take many HOURS to have a significant recharge if the battery is low on power. If you work at the destination, then spending the next 8 hours at the location is fine but if you are traveling across the city and the charge gets low, you will find yourself stranded until the battery gets a significant recharge.

Fifth Gear on electric cars...
‪Fifth Gear S17E03 Electric Car‬‏ - YouTube

sir

thanks sa info...and sa youtube video...wag po kayong magsasawa sa kakatanong ko po...

[ROAA STUDIO]

mga sir,
tanong na rin po... pede po ba hong sabihin na ang hybrid car is much better than an electric car?