Without that clutch-in, the electric car's efficiency is going to be reduced since it's having to lug around 500lbs of engine. It feels a bit like it's shifting, but it's actually the engine syncing up/clutching into the drive gear. ![]() The Gen2 Volt can clutch in to the drive gear at 50mph and above, depending on which part of the magic of the planetary gearset is most efficient. The Volt's engine design is to clutch into the drive gear when driving at a constant speed, usually while on the highway. The main purpose is to move the car, not generate any more electricity than it has to, but it can be run to generate a bit of extra power, but that's mainly reserved for climbing mountains out in Colorado. The primer looks like this, the Volt runs the engine independently of the wheel speed of the car, and the BMS manages the power output from the engine to move it more mechanically, or electrically (or both)Īt highway speed, the engine is moving the car mostly mechanically, but is also generating about 15kw to keep the electric motor in sync, maintain the car's battery charge, etc. Most production EV's use 400V AC motors, dual motor cars can also use a set of synchronous and asynchronous, which are permanent magnet/induction pairs. Swap the engine for an electric motor, put the battery in for ballast, fire up the generator in charge maintain mode for super long-haul water crossings like the English channel, otherwise you can go on battery for the first 70 nautical miles (assuming 15mph cruising speed) Right now, a 35ft cabin cruiser needs a 3.5L V8 engine running at 3500rpm to make it upwards of 25mph out on the waterĮlectric motors are designed to spin well over 8,000rpm and have tons more torque than ![]() My math might be off, but something like a 35kw diesel generator paired with a 14-20kwh battery and the associated hybrid controllers that can manage/balance the power. If you really want to build something consider taking that idea and making a plug in hybrid boat. That's going to be quite a feat of engineering and defeats the purpose of going all in for long range electric cars. My ev build will be 36kw of Volt batteries and a Tesla model S rear drive unitĪlso the EV conversion in question is a 1971 Corvette restomods sitting in my garage, aiming for a high power electric sports car as the final result ![]() Basically I'd hook this thing up for long distance highway drives and get the best of both worlds don't need to add too much weight to my conversion, don't need to chop the car to pieces to shove batteries everywhere.but if I want to drive 300 miles instead of 100 I just hook up this generator and head out. How fast in kilowatts can the engine charge the batteries?Ĭould this setup be replicated with a volt engine on a trailer wired into an EV conversion which uses Volt batteries?Įdit the reason I want to do this is so I can have an EV conversion which doesn't need to have a massive amount of batteries for usable range. Is the engine hooked up to the drive motors in parallel with the battery so the drive motors can just draw watts from the engine directly?ĭoes it charge through the onboard charge controller? Is it a direct DC charge and thus only the BMS mediates charge? The biggest unknown being how the generator charges the batteries while the car is running Not really sure how to phrase the title but essentially I have a project idea to make a Chevy volt engine into a generator-trailer for diy EV projects, and I have a lot of questions to ask someone really knowledgeable on how the system works.
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