Hybrid battery cooling mod

The microfans aren’t in a sealed enclosure either so he ll need 2 hammers to get out of level 1 wack o mole.

 

Google.....natural circulation...natural convection, etc....

For example...hot air coming up off a paved road...does it leave an unfilled vacuum on the road surface? Would warm air naturally rising above the modules and flowing out the exit duct leave an unfilled vacuum between the modules? Is it a hurricane? Nope, but it exists.

It's your car, do as you wish with it. If you post everything you do, take it in stride that not everyone is going to feel the same way about it. Some will lick your balls and tell you how great it is...others won't. Perhaps individuals with life experience/education that varies from yours may not have the same viewpoint as you. It's kinda that ying-yang thing that comes with posting your life on the internet...

 

Yep, and SOC is beyond 65%. Combination for some unwanted bulging.

 

The fan controller is a microcomputer-based intelligent cooling device that automatically adjusts the fan speed to optimally cool the high-voltage battery. Using a fan controller will increase the life of the hybrid high voltage battery by 2-3 times.

Owners of Toyota vehicles with hybrid engines face problems with overheating of the high-voltage battery due to insufficient cooling. Since the launch of the PRIUS 30, Toyota has steadfastly ignored the importance of proper cooling of the HV battery in hybrid vehicles. After 5 years, the battery loses capacity by 40-50% and begins to overheat due to charging with huge currents, although its capacity has been reduced by half.

The maximum wear of the components located in the center of the high-voltage battery assembly is strong evidence of systematic overheating. Nickel-Metal Hydride (NiMH) batteries have higher energy ratings but operate within a narrower temperature range and are at risk of overheating.

When the temperature reaches 45°C, the car’s computer blocks the use of the battery. Although this may go unnoticed by the general driver, this results in the recovery being disabled and the EV (Electric Vehicle) function not being used, as well as increased fuel consumption. If you’re not experiencing battery overheating issue, chances are it’s a bug you just don’t notice. In this regard, it becomes necessary to provide additional cooling of the high-voltage battery.

The car’s computer controls the battery cooling fan according to certain temperature values:
Speed 1: 30% fan power at 36°C;
Speed 2: 31% fan power at 38°C;
Speed 3: 32% fan power at 40°C;
Speed 4: 33% fan power at 45°C (this temperature disables battery usage)
Speed 5: 35% fan power at 50°C;
Speed 6: 100% fan power at 60°C, a “High voltage battery overtemperature” error occurs, causing the hybrid system to go into emergency mode. There is a risk of battery explosion and fire. In the event of a fire, the flame is small, but it is difficult to extinguish it, especially in the presence of a charge. There is also an unpleasant odor.
The fan automatically turns off when the temperature reaches 34°C.

That is, 1 – 5 speeds practically do not differ.
I wonder why the developers of the program provided such a strategy for changing power at different speeds, since changing power by only 1% between speeds seems pointless.
Fan noise is annoying.
Perhaps there were other plans initially, but in the end they decided to sacrifice battery longevity and changed the power values \u200b\u200bat different speeds. The high-voltage battery cooling fan is not prone to breakage, but only becomes clogged with dust, requiring regular cleaning.

 

So, the conclusion: it is necessary to maintain the temperature no higher than 40 ° C. To do this, it is proposed to increase the fan power at the 3rd speed. It is possible to solve the problem with the help of an electronic unit based on a microcontroller and capable of significantly increasing battery life. Additional cooling for the hybrid high voltage battery is provided by the fan controller.

Installing the fan controller for additional battery cooling is very simple: it connects to the fan with two connectors in one minute.

However, if the “High Voltage Battery Overheat” error appears too frequently, the battery may need to be repaired. However, battery repair is about replacing very bad cells with not so bad cells. From such a repair, the battery will not become new and will still overheat. It is not possible to buy a new high-voltage battery as a spare part. She’s just not for sale. Subject to mandatory disposal.
Fan controller is required.

 

Installing the fan controller for PRIUS 30

 

So, the conclusion: Find out WHY the battery is over heating, then correct it.
No extra devices needed.
Perhaps a few cells are swollow which blocks air flow.

 

I'm so glad this thread came back up. Needed a good laugh today!!

 

US $320.- ......

 

Lol... Not a day goes by that I don't see someone scamming people on car stuff...

 

OUCH!!! Lot's of money!

 

heck, at that price someone here will probably buy 3 and get the rest of us a discount code! Jump on it, dawg!!

 

I think the guy with that runs his Prius online shop pc name beginning black will then claim to buy 3 and not ship it out but will charge ya