How the transmission in the 4Runner hybrid works

[kzrman]

I found this lecture fascinating.

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[Nodak]

pretty simple really but this video is for NON BoF hybrid systems. the tundra, tacoma, seqouia, 4runner uses a different hybrid setup called the 1MHV setup. on the BoF hybrid system there is only 1 electric motor not 2 in the normal toyota hybrids.

in a nutshell is laid out ...

engine > clutch > electric motor > transmission

you can watch video explaining it here from CCNut

Hybrid cars like the Toyota Prius, Toyota Corolla Hybrid, etc. have a dual-motor setup. The first motor takes power from the engine and converts it over to the battery to give you that coveted electrical power. The second motor is connected directly to the wheels to power them. Instead of the engine solely sending torque to the wheels, the path is – for the most part – electrical. That’s why while you’ll get great fuel efficiency in this type of setup, it’s not renowned for horsepower or torque.

So how does the Toyota Tundra Hybrid offer such exceptional performance? The main difference is that the path that sends power (you know, the one that’s mostly electric in the Prius) is mechanical. There’s a single motor in this performance-driven truck, and there’s a clutch in between it and the engine. If the clutch is open, the engine can turn off and the electric motor takes over to send power to the wheels. If the clutch is closed because the truck needs that internal combustion power, the twin-turbo V6 engine kicks into life to mechanically send power to the wheels.

 

[Nodak]

thats why the hybrids in the BoF vehicles are not touted as mpg vehicles but power enhancing hybrids.

 

[kzrman]

thats why the hybrids in the BoF vehicles are not touted as mpg vehicles but power enhancing hybrids.

Thanks for clearing it up.
I will have a look at the video.

The more that I learn about the inner workings of my truck the more amazed I am, and the more I want to learn

 

[Nodak]

I found this lecture fascinating.

here is the correct video you want to use for the tundra, sequoia, 4runner, tacoma

 

[kzrman]

here is the correct video you want to use for the tundra, sequoia, 4runner, tacoma

Thank you!
Just got through watching the video. Very well done.

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