jadnashuanh
Posts: 5034
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Hack Traffic Jam Assist to restore self steering in USA?

Fri Jul 10, 2015 12:58 pm

My guess is that the other steering wheel provides the vibration function to alert you. Some of this stuff is embedded in the base code, some relies on a special control module. Retrofitting bits can sometimes be quite complicated if the wiring is not there to support it. BMW does not generally supply one harness...it is built with only the wires and connectors needed for the options as ordered in most cases. This saves them some money, but also means replacement can get costly and somewhat time consuming, as it needs to be built specially, rather than one common part off the shelf. MOstly gone are the days when a harness might have lots of unused connectors, just waiting to plug in an option should you decide to do it later. It's also possible that the camera or it's lens and housing may differ.

If someone does figure out an easy way, it would be useful, I'm not holding my breath.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV
Soon (hopefully!) A 2021 X5 45e will replace the above

crossie
Posts: 47
Joined: Sun Aug 24, 2014 4:53 am
Location: Ireland

Re: Hack Traffic Jam Assist to restore self steering in USA?

Sun Jul 26, 2015 5:34 pm

WoodlandHills wrote:Outside of NA an i3 with Active Cruise Control will self-steer up to 25mph.
Actually the limit for the lane-keeping on my i3 is 60km/h which according to google is 38mph.

It's quite a handy feature actually.... ACC keeps to max 60km/h if the traffic speeds up (and sounds an alarm after 5 seconds) but then you just tap the accelerator or resume button and you are back to your preset ACC speed.

crossie
Posts: 47
Joined: Sun Aug 24, 2014 4:53 am
Location: Ireland

Re: Hack Traffic Jam Assist to restore self steering in USA?

Sun Jul 26, 2015 5:38 pm

ThreeEyes wrote:How certain are you about that? It may be that you're right however my understanding is that the metal strip that runs around the steering wheel is the sensor.
nope.... definately the back of the steering wheel... no contact with the metal strip. It seems to be a capacitive sensor of some kind, no pressure required just gentle contact without gloves.

czarmar
Posts: 46
Joined: Tue Feb 10, 2015 9:56 pm

Re: Hack Traffic Jam Assist to restore self steering in USA?

Tue Oct 20, 2015 8:55 pm

Actually if you are going to hack the car, it would be better to get the TJA working without the steering wheel nag. My wife's MDX drives itself for a bit on the freeway, but starts nagging you to steer after 10 seconds or so. At least the Tesla AP just nags you once but doesn't shut it off just because of a timeout limit. If the lane markings are there and the car can make it out, don't shut it off...

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