(POC)(WIP) Torque vectoring system.

[Aventador2004]

Hi all supercar makers!

I have made a simple torque vectoring system for use in my next supercar, after TC12. It uses 3 motors, one drive, 2 vector rear wheels. It uses a (WIP) controller, that when you steer, it engages torque vectoring control. I think this will work better on a sbrick, with a customized profile, but I will use mechanical for now.

up on middle does drive, outside sticks must be on. Disengage the inside stick, it vectors inward.

[Boulderer]

I'm not sure that wheel spin or traction have been much of an issue on most of the Lego vehicles that I've built 

[Aventador2004]

1 minute ago, Boulderer said:

I'm not sure that wheel spin or traction have been much of an issue on most of the Lego vehicles that I've built 

It is for more realism for a car with the system.

[doug72]

Can you explain more how this functions ?
It seems to me that the two "L" motors will be fighting each other when the "M" motor is stationary and differential body is not rotating..

[Boulderer]

4 minutes ago, Aventador2004 said:

It is for more realism for a car with the system.

Forgive me for being a little playful with my first comment.

On a more serious note, don't most force vectoring systems work by applying a slight braking force to one axle, typically the inside wheel, to direct torque to the other wheel?  I'm not sure how your system replicates this realistically. 

[Aventador2004]

Just now, Doug72 said:

Can you explain more how this functions ?
It seems to me that the two "L" motors will be fighting each other when the "M" motor is stationary and differential body is not rotating..

The m motor at this gearing is close to same with speed of l motors. The L's and M are engaged both at once, but to vector, the outside or inside motor disengages, depending on the corner. 

 (M) 132.1 RPM at 7V and 196.4 RPM at 9V.

 (L) 124.8 RPM at 7V and 163.2 RPM at 9V.

just keep in mind this is not completely finished.

Just now, Boulderer said:

Forgive me for being a little playful with my first comment.

On a more serious note, don't most force vectoring systems work by applying a slight braking force to one axle, typically the inside wheel, to direct torque to the other wheel?  I'm not sure how your system replicates this realistically. 

I am working on a braking version too, Mclaren uses brake vectoring, but this is a torque vectoring system. They work opposite.

[BrickbyBrickTechnic]

There's no need for the central M motor IMO. All you would need is 4 drive motors (1 for each wheel) and 1 steering motor (for non-torque-vectoring mode).

Reference for this is @Zero (Zblj) 's 42056 crawler.

[Aventador2004]

1 hour ago, BrickbyBrickTechnic said:

There's no need for the central M motor IMO. All you would need is 4 drive motors (1 for each wheel) and 1 steering motor (for non-torque-vectoring mode).

Reference for this is @Zero (Zblj) 's 42056 crawler.

Ok, I will be working in these ideas, along with trying a brake vectoring idea.

[MattL600]

Very advanced stuff!

I like the concept, would love to see it in an suv or something :)

[Aventador2004]

2 hours ago, MattL600 said:

Very advanced stuff!

I like the concept, would love to see it in an suv or something :)

I was planning to use it in a motorized supercar instead, with a new servo on the way.

[MattL600]

6 hours ago, Aventador2004 said:

I was planning to use it in a motorized supercar instead, with a new servo on the way.

Yeah that would be great too!