Motorcycle with PID turns into spinning helicopter blade when I turn too sharply

[Daw588]

My motorcycle goes crazy when I turn too sharply, I tried adjusting all the PID module parameters but none of them fixed my issue.

local PID = require(ReplicatedStorage.PID)
local BalancePID = PID.new(-3000, 3000, 100, 80, 0)

local function update(deltaTime: number)
	local tilt = root.Orientation.Z
	local force = BalancePID:Calculate(deltaTime, 0, tilt)
	root.BalanceForce.Force = Vector3.zAxis * force
end

RunService.Heartbeat:Connect(update)

[5uphi]

You can also use a AlignOrientation

With these settings

take note of the Mode, AlignType and PrimaryAxis

and then you can use the CFrame property to tilt the bike

[Daw588]

Can you clarify how I am suppose to tilt the motorcycle with the CFrame property of AlignOrientation?

[ItzMeZeus_IGotHacked (notzeussz)]

You don’t have to, the AlignOrientation instance already helps you does that. Also, there is no CFrame property in it.

[Daw588]

@ItzMeZeus_IGotHacked

there is no CFrame property in it

There is, take a look at the documentation.

@ItzMeZeus_IGotHacked

You don’t have to, the AlignOrientation instance already helps you

I followed @5uphi’s instructions and it is not working.

[ItzMeZeus_IGotHacked (notzeussz)]

Can I see your current code? if that helps.

[Daw588]

There is no code for AlignOrientation though. If you are talking about the PID, it’s on my original post.

[ItzMeZeus_IGotHacked (notzeussz)]

I don’t think AlignOrientation instance would work in such instance. So, I believe we should be sticking to PID, though I never heard what is this thing.

[Daw588]

PID controller

[ItzMeZeus_IGotHacked (notzeussz)]

I see, I am not a geek in using that, so I can’t really help you much…

[5uphi]

here is a demo that uses AlignOrientation

Motorcycle.rbxl (42.7 KB)

and this is the script I used to tilt the motorcycle

local runService = game:GetService("RunService")
local model = script.Parent

local tiltAmount = 1

runService.Heartbeat:Connect(function(deltaTime)
	local rightVector = model.Part.CFrame.LookVector:Cross(Vector3.yAxis) * (model.VehicleSeat.SteerFloat * tiltAmount)
	model.AlignOrientation.PrimaryAxis = (Vector3.yAxis + rightVector).Unit
end)

if you want to control more then one axis then you would need to set PrimaryAxisOnly to false and then use CFrame to rotate

but in the demo I have PrimaryAxisOnly set to true so i use AlignOrientation.PrimaryAxis to set the angle