ReGen Braking System

Nate and Kevin demonstrate the Regenerative Braking system on Seven.

Category:

Science & Technology

Tags:

• Lithium Batteries
• Progressive
• Automotive
• X-Prize
• xprize
• autoX
• Progressive Automotive X-prize
• Progressive AutoX
• Gull wing
• Fuel efficient
• home built car
• experimental
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• lithium-ion battery
• Bender
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• Illuminati Motor Works
• Kilo watt
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• Regen Braking

[heartlessvietboy]

Re-Generative Braking is said to collect the heat that would otherwise be lost during braking and turn it into electric current. If this is true, how do they do it???

[IlluminatiMotorWorks]

@heartlessvietboy We use our electric motor to slow the car this captures the kinetic energy and stores it in the batteries. It works very well.

[heartlessvietboy]

Then what is said about re-generative braking most of the time is false.

[IlluminatiMotorWorks]

@heartlessvietboy Not really false, but poorly explained, electric vehicles convert the kinetic energy to electricity friction brakes convert the kinetic energy into heat. So it could be said that electric vehicles are collecting the energy that is normally lost as heat. Thanks for the questions hope I helped.

[lazzer408]

@IlluminatiMotorWorks I haven't fiddled with EVs in years. I did a Geo conversion once and have a Yamaha FJ1200 that's 90% converted sitting in storage. I started to focus on controller design. At least I can sit at my desk designing it. :) Good luck with your project. I have a suggestion for regen for you. Shoot me a PM sometime. I'd be interested to see what you think about it.

[IlluminatiMotorWorks]

@lazzer408

You have some fascinating ideas I look forward to seeing videos of your car’s energy recovery system in operation.

Good luck. 

[lazzer408]

@IlluminatiMotorWorks "We have an induction motor drive train that is capable of turning the kinetic energy into chemical energy efficiently." That statement is pointless. It's a function of the battery to convert electrical enegry into chemical enegry. Not the motor's. You mat have an efficient "induction generator" but you do not have an efficient battery. That's the problem. They're are some solutions such as using capacitors to more efficiently absorb regen enegry but they add weight/cost.

[IlluminatiMotorWorks]

@lazzer408

We have an induction motor drive train that is capable of turning the kinetic energy into chemical energy efficiently. A device to capture the braking energy without increasing vehicle weight, can interface with a 200KW drive train, and is affordable, we will buy it. Regenerative braking into a battery bank is the best answer we have found thus far. If you have a good idea, build it. It is rewarding to see something become reality. You miss 100% of the shots you don’t take.

[lazzer408]

@IlluminatiMotorWorks 30amps can't stop a car any faster then it could accelerate it. A 300v 30a system, for example, can only produce about 10-12hp. It would be a slight drag to try and stop a car with 12hp. ~80% of braking is on the front tires. The driver would have to control the amount of braking just as they do with any braking system. Converting one form of enegry to the same form is much more efficient then converting it many times. Think desktop ball-clacker but with rotating mass.

[IlluminatiMotorWorks]

@lazzer408

Regen braking is not an all or nothing proposition, if you were to ask it our regen capacity can and will lock the front tires. Normal driving scenarios regen is capable of slowing the vehicle and easily modulated, just as you would not apply full mechanical braking every time you stop. Even 30 amps of regen which is the recommended charging rate for the batteries will slow the car smoothly.