[DanITman]

Confirmed this morning that the active spoiler can be coded.

Module: HKFM

Inside HKFM there are a bunch of options that start with ASP. I'm not sure what all of them do yet but all of them have to do with the Active Spoiler. The example today is to change the speed at which the spoiler is activated.

You need to change two values to change the speed. In this example I'll pick 55mph. We have to convert everything to km/hour so lets say 88. If you don't change both at the same time you'll get an error when coding the car.

V_ASP_OUT has a default of 00, 6E.
The '6E' value is the speed you'll need to change. We need to convert 88 to Hex. So the value you'll want in here is 58

The second one is a tricky one.

INV_V_ASP_OUT has a default value of FF, 91. Just like the first example we'll need to modify the hex value of 91. This one is a bit different because you need to do some math. When converting these hex to decimal we get 255-145=110. 110km is the default activation speed. Not sure why BMW did this but we need to do the same to make this equation equal 88. So 255-88=167. Convert that to hex we get A7.

When both of the values match you won't get a coding error and the spoiler will activate at 55mph.

My final values are:
V_ASP_OUT = 00, 58
INV_V_ASP_OUT = FF, A7

I'm assuming it's the same for V_ASP_IN, however, there isn't two parameters like there was for OUT. I'll test the IN later and report back.

-Dan

[DanITman]

Confirmed V_ASP_IN works to retract the spoiler at a certain speed.

Confirmed that F34 Active Spoiler retraction speed can be coded.

HU_NBT -> 3100 -> V_ASP_IN

Again this value needs to be converted to hex to work. The default is 46 hex which converts to 70 kmph. If you want it to be 88 kmph that would convert to a hex value of 58.

[tigerswimmer]

i don't think you'd want IN and OUT both set to the same speed.

[Billfitz]

Originally Posted by tigerswimmer

i don't think you'd want IN and OUT both set to the same speed.

+1. Not sure about the need to change it either, and there's always manual control if you want to show off.

[Raytec85]

Originally Posted by DanITman

Confirmed this morning that the active spoiler can be coded.

Module: HKFM

Inside HKFM there are a bunch of options that start with ASP. I'm not sure what all of them do yet but all of them have to do with the Active Spoiler. The example today is to change the speed at which the spoiler is activated.

You need to change two values to change the speed. In this example I'll pick 55mph. We have to convert everything to km/hour so lets say 88. If you don't change both at the same time you'll get an error when coding the car.

V_ASP_OUT has a default of 00, 6E.
The '6E' value is the speed you'll need to change. We need to convert 88 to Hex. So the value you'll want in here is 58

The second one is a tricky one.

INV_V_ASP_OUT has a default value of FF, 91. Just like the first example we'll need to modify the hex value of 91. This one is a bit different because you need to do some math. When converting these hex to decimal we get 255-145=110. 110km is the default activation speed. Not sure why BMW did this but we need to do the same to make this equation equal 88. So 255-88=167. Convert that to hex we get A7.

When both of the values match you won't get a coding error and the spoiler will activate at 55mph.

My final values are:
V_ASP_OUT = 00, 58
INV_V_ASP_OUT = FF, A7

I'm assuming it's the same for V_ASP_IN, however, there isn't two parameters like there was for OUT. I'll test the IN later and report back.

-Dan

How low the speed could make the spoiler up? Do you think we need to set the retract speed as well??

[DanITman]

Originally Posted by Raytec85

How low the speed could make the spoiler up? Do you think we need to set the retract speed as well??

I'm not sure, i haven't really tested how low it can go. Another user @ bimmerfest wanted his to go up at 10kmph and retract back at 5kmph. He was going to test it out and see what happens.

[Raytec85]

Originally Posted by DanITman

I'm not sure, i haven't really tested how low it can go. Another user @ bimmerfest wanted his to go up at 10kmph and retract back at 5kmph. He was going to test it out and see what happens.

Thanks and please do keep me update.

[Slalom]

The spoiler seems to have a lock that is activated when the car is locked. After unlocking the lock disengages at about 53km/h. The spoiler still deploys at @110km/h. Have you seen the vales for this?

[DanITman]

Originally Posted by Slalom

The spoiler seems to have a lock that is activated when the car is locked. After unlocking the lock disengages at about 53km/h. The spoiler still deploys at @110km/h. Have you seen the vales for this?

I would look at the Value under V_ASP_FETRAFLA. Here is the comment from coding. Not sure what it does.

Comment = Vehicle speed limit in km/h in order to transition FeTraFla mode < => automatic mode.

OPTIONS
initwert = 00 32 - Comment = 50-> 50km / h