Best way to build a hybrid truck?

[ksa8907]

Originally Posted by freebeard

OP wasn't kidding at Permalink #10. We're discussing amongst ourselves.

That said my Lexus axle has 6.78 to 1 reduction and it's capable of 10K RPM. 8 to 1 on a 5K RPM capable motor might be a problem-o.

Lol, he never even made it to the magical 5 posts!? What a terrible bot.

[redneck]

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He could be a member or a former member, with a burner account... 😉


You never know...




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[rmay635703]

Originally Posted by freebeard

OP wasn't kidding at Permalink #10. We're discussing amongst ourselves.

That said my Lexus axle has 6.78 to 1 reduction and it's capable of 10K RPM. 8 to 1 on a 5K RPM capable motor might be a problem-o.

As previously stated no big loss,
I believe this guy had a similar reaction on diyelectriccar

8:1 ratio with ??? Big tires and a 12kRpm + leaf motor would not be rpm limited

[freebeard]

Wasn't sure I didn't have the ratios backward.

Given the superior gearing available for the rear he could proceed to obtain a Caddillac FWD V8 transaxle (preferably 5mt) and then install an 11” Nissan Leaf A/C motor controller and battery using the universal inverter hack face mounted citicar style straight to the face of the 8.x rear pumpkin.

Needs a picture. Here's one or two that would satisfy his 10 MPH creep function:

[cRiPpLe_rOoStEr]

Originally Posted by freebeard

OP wasn't kidding at Permalink #10.

Neither stated clearly his goals at Permalink #1.

We're discussing amongst ourselves.

Maybe someone else would have an actual, and eventually better, use for this matter anyway.

[Hersbird]

Moving the bar forward but actually caring about what's cost effective, wouldn't a normal gearset in the front of a 4wd truck (say 4.10:1) be sufficient for 10 mph?

I personally would want more like 65 mph possible or what's the point of dragging around 100s if not 1000 pounds of extra gear.

The added generator is also a bad idea. The ICE motor is the already 10 times more powerful generator.

I did see on the Jeep 4XE (supposedly the #1 selling PHEV last quarter) you can turn on and off the EV modes saving the battery for when you want, or put it in a generator mode where it adds to the charge. Pretty cool. And it runs 8.8 sec 1/8 mile drag racing although the guy did pull out the rear seat and spare tire (common drag racing hacks.) That's generation 4 or 5 Corvette territory. I bet 0-60 it would probably beat the c5 vette as the 1/8 mile is more like 0-75 mph.
https://youtu.be/Reo57YMcH_0

[cRiPpLe_rOoStEr]

Originally Posted by Hersbird

The added generator is also a bad idea.

Considering how most commercially-available full-hybrids already resort to the electric motors as generators too, this would be quite overkill.

[S Keith]

Originally Posted by Hersbird

Moving the bar forward but actually caring about what's cost effective, wouldn't a normal gearset in the front of a 4wd truck (say 4.10:1) be sufficient for 10 mph?

I personally would want more like 65 mph possible or what's the point of dragging around 100s if not 1000 pounds of extra gear.

The added generator is also a bad idea. The ICE motor is the already 10 times more powerful generator.

I did see on the Jeep 4XE (supposedly the #1 selling PHEV last quarter) you can turn on and off the EV modes saving the battery for when you want, or put it in a generator mode where it adds to the charge. Pretty cool. And it runs 8.8 sec 1/8 mile drag racing although the guy did pull out the rear seat and spare tire (common drag racing hacks.) That's generation 4 or 5 Corvette territory. I bet 0-60 it would probably beat the c5 vette as the 1/8 mile is more like 0-75 mph.
https://youtu.be/Reo57YMcH_0

The d!ck in me hates to side with the OP just on principle, BUT electric power produced by the ICE motor is likely to be brutally inefficient, especially at idle. He's talking about powering household/workshop type items, and a generator is the right choice.

Pulling 2000W out of a V8 idling is going to burn WAY more gas than pulling 2000W out of a 4000W generator.

A typical 4000W generator has a ~200cc engine vs. 5000cc of a 5.0L truck ICE (are there any that small? Mine is 7.4L). LOTS of fuel goes into just keeping the 5.0L mass moving, and it's going to have very high mass flow through it.

The most sensible way to make power using a generator is to size the generator such that the typical continuous run load is 70-80% of the maximum.

[Hersbird]

Originally Posted by S Keith

The d!ck in me hates to side with the OP just on principle, BUT electric power produced by the ICE motor is likely to be brutally inefficient, especially at idle. He's talking about powering household/workshop type items, and a generator is the right choice.

Pulling 2000W out of a V8 idling is going to burn WAY more gas than pulling 2000W out of a 4000W generator.

A typical 4000W generator has a ~200cc engine vs. 5000cc of a 5.0L truck ICE (are there any that small? Mine is 7.4L). LOTS of fuel goes into just keeping the 5.0L mass moving, and it's going to have very high mass flow through it.

The most sensible way to make power using a generator is to size the generator such that the typical continuous run load is 70-80% of the maximum.

Well if you have say a 10kwh battery you don't pull just 2000watts out of a generator. You pull as much as possible and charge the battery, then shut off the ICE and use the battery, repeat. Normally you would want to size the generator to the load, but with the battery you can make that the big load and then bleed that with the usage.

[ksa8907]

Originally Posted by S Keith

The d!ck in me hates to side with the OP just on principle, BUT electric power produced by the ICE motor is likely to be brutally inefficient, especially at idle. He's talking about powering household/workshop type items, and a generator is the right choice.

Pulling 2000W out of a V8 idling is going to burn WAY more gas than pulling 2000W out of a 4000W generator.

A typical 4000W generator has a ~200cc engine vs. 5000cc of a 5.0L truck ICE (are there any that small? Mine is 7.4L). LOTS of fuel goes into just keeping the 5.0L mass moving, and it's going to have very high mass flow through it.

The most sensible way to make power using a generator is to size the generator such that the typical continuous run load is 70-80% of the maximum.

In the way the OP wants to create a "hybrid" probably so, but an engine designed for hybrid use is much better designed and tuned to work as a generator because that's what it is for.