Religious people get very little reps, it's xenophobia and religionism.

[Drich]

Now, you're getting fuzzy again.  Not interested in movie analogies or company names or mistakes by the project engineers.  What you're describing is a clusterfuck of a project.

So, a soft start for the compressor so that inrush current comes from the generator but switches to the inverter once running.  That's a couple relays.  One being a delay on make.

Two buck converters for control voltage.

A battery monitor.  That's a dial or analog input to the controller.

BTW, what was the controller?  PLC or an OEM board?

The power demands of the refrigeration system are fixed by the setpoint.  The charge time for the batteries are set by the battery type (how much current can they take ) and the current available from the generator.  The charge life of the battery is set by their AH.  How did you program the controller to maximize system run time?

What else?

here is where you messing up again. the devil is in the detais. the reason i gave you the movie anaology is so you could understand the vital need to sequence and modulate amp draw. all the bs you laid out was similar to what the two engineering teams laid out.. while a soft start would control motor run up it can't help with amp consumption. which is a very big part of running a 15hp compressor on 48vdc batteries only. plus when plugged in the batteries need access to a full charge rate while the unit is running. (gotta keep product cold, and we only have the one power plug @ 25amps.) so pitch the soft start because remember the truck is not plugged into anything generator or line voltage. it only has battery when operating over the road. and it will not help modulate demand while being charged.

also buck the converters (we don't need them with my design and we are also on a tight budget.) Which i came in under.

the control board was an oem i had modified to my spec. ( i also set the parameters and limits for high speed cool, low speed cool, defrost, high and low speed heat./charging cool, defrost and heat.) this is the part that took the longest.. they orginally had two thermostats one that controlled it in cool the other in heat.

as far as the power demand being set by the set point.. wrong again. i used a VFD different types of fans and refrigerant to set the power demands. the vfd allowed me control voltage frequency to the compressor i could change the voltage and the Hz. if i remember the vfd also had a soft start ramp up built into it. that took care of the start on battery issue, then we used it to also control compressor speed and amp consumption by reducing the frequency of power the compressor was being fed. this allow for full charge rate at batteries and for the unit to maintain temp in 'low speed'. once the compressor was running. I think dont hold me too it but i think we could run about 75% of max speed and still progressively cool the refrigerated box about a degree a min. which in plug in mode (at night) is not bad. Then we optimized the system. this drastically changed power consumption by changing the refrigerant, fans and a few other things and dropping the head pressure from 325/350 psig to 150/175psig. this went from 15to 18 amps down to 6 to 8 amps.

oh and your 'fuel gauge' only tells what the surface charge is in the battery not how long you have left. plus it's on all the time.

plus phase selection.. that can be accomplished by buying a 2000.00 phase selector, but it put us over budget, would literally add twice the heavy wire in the box, and would make the whole system sensitive to moisture. so there is a way i fixed that.

then the whole unit had to be rewired as it was wired to accept generator inputs.

reduction in head pressure means the compressor needs less force to build up to double the new working pressure.

that is the what i did. don't ask how. nda/non compete 

Again, there is no generator.

READ THE STORY

The generator truck worked with conventional diesel trucks.. trucks with transmissions and diesel engines.

i was working on one of the very first all electric trucks, so they wanted an all electric refrigeration system

the closest thing on the market was this generator truck system. problem was no way to run the generator. (electric truck don't have transmissions like the diesel trucks.)

purposed solution was to run the truck on battery power for no more money than the cost of removing the generator out of the cost of the existing system. plus we could not add more than 1000 pounds to the whole truck.

so limited weight. limited funds and without the parts they want to take off the unit will no longer run.

plus originally they wanted to use all of the old parts that made the generator truck work. my purposed list redesigned everything but was much cheaper meaning we could add weight and batteries.