Kraton Transmission advantages

[digitaldude80]

Hi,

Maybe a stupid question, but what are the advantages of a transmission over a direct pinion/spur configuration?

 

[LMC]

No such thing as stupid questions, just stupid people afraid to ask.

https://www.roadandtrack.com/new-ca...-electric-cars-have-multi-gear-transmissions/

 

[digitaldude80]

No such thing as stupid questions, just stupid people afraid to ask.

https://www.roadandtrack.com/new-cars/car-technology/a12019034/why-don't-electric-cars-have-multi-gear-transmissions/

Thank you!

If I understand correctly because of the low kv engine of the 8S, the gearbox is needed to create the driveratio for the needed speed?

 

[LMC]

Thank you!

If I understand correctly because of the low kv engine of the 8S, the gearbox is needed to create the driveratio for the needed speed?

That’s a question for the veterans, I’m still trying to figure out the whole kv/gearing thing and the math.

 

[chrisexv6]

No such thing as stupid questions, just stupid people afraid to ask.

https://www.roadandtrack.com/new-cars/car-technology/a12019034/why-don't-electric-cars-have-multi-gear-transmissions/

The YouTube channel they link to is spectacular, BTW. Jason is crazy smart and is able to explain really tough concepts pretty easily. Definitely worth a subscribe.

 

[LibertyMKiii]

Hi,

Maybe a stupid question, but what are the advantages of a transmission over a direct pinion/spur configuration?

Transmissions will be significantly more common on 1/5 scale due to the large tire diameter. The internal transmission, plus the differentials, plus the pinion and spur allows you to reduce the rotation down enough to get the speeds down.

While gearing like this also provides additional torque multiplication that was not the key reason for doing it.

They could have done a differential with a larger ratio, but then you have a differential size that no longer provides good ground clearance. Same goes for the motor pinion and spur. Thus for packaging things within reasonable space they use the transmission to change the gearing. (Plus now they can sell you more replacement parts )