So I just cracked-open my IMS flange....

[imon_2nd]

Hello, Nine8Six.

Good idea and it will work. I say that having worked as a senior development engineer for hardware and software in various digital products, including a lot of audio. I'm a 25-year+ member of IEEE and AES.

You may be underestimating the amount of code that has to be written, not to mention the extensive debugging required to make it reliable. In this case, the amount of code will be driven by the large number of digital filters needed and the interaction among them. This is because motors are noisy places. Picking out the relevant signal from the noise could only be achieved by "self learning" algorithms "hearing" more than a few failures. Lacking any database of failure sounds, the software will have to determine the onset of failure based on changes from "normal." Of course "normal" will vary from motor to motor and across a large operating range.

In short, this is a hard problem that does not lend itself to generalization. Some strategies may be transferable to other motors in other models of cars, but most of the code will not be reusable.

If you were the Director of Engineering at Porsche and asked me as a consultant to bid for this software work, I would estimate 2 man-years. At my rates, that is over $300K.

Good luck with it.

Cheers,

Dave

[Nine8Six]

Originally Posted by imon_2nd

Hello, Nine8Six.

Good idea and it will work. I say that having worked as a senior development engineer for hardware and software in various digital products, including a lot of audio. I'm a 25-year+ member of IEEE and AES.

You may be underestimating the amount of code that has to be written, not to mention the extensive debugging required to make it reliable. In this case, the amount of code will be driven by the large number of digital filters needed and the interaction among them. This is because motors are noisy places. Picking out the relevant signal from the noise could only be achieved by "self learning" algorithms "hearing" more than a few failures. Lacking any database of failure sounds, the software will have to determine the onset of failure based on changes from "normal." Of course "normal" will vary from motor to motor and across a large operating range.

In short, this is a hard problem that does not lend itself to generalization. Some strategies may be transferable to other motors in other models of cars, but most of the code will not be reusable.

If you were the Director of Engineering at Porsche and asked me as a consultant to bid for this software work, I would estimate 2 man-years. At my rates, that is over $300K.

Good luck with it.

Cheers,

Dave

Hi Dave

Wow, thanks so much for jumping in and taking the time to write here. Exactly what I meant, we need minds like yourself to set the rules and standards also! Welcome to the speak (it is just a speak still).

Would you join us if;

1. I base the backend on the Cortex and open SSH root access to the libraries. I can get dns to serve that to all interested developers and yourself. I can also look into setting up a lab with both analog and digital interfaces for the sensor signals. Should be fairly easy (cheap!) to provide.

2. I machine a mid sized replica of the steel base shaft assembly and chains and get it to rotate 24/7 here at the shop (using electric). Providing developers with real-time data to prototype onto. That’s right, live, on the Internet.

Something you'd still consider 300K? In all honesty I had estimated about 25~50k max but that only if using other's SDK (commercial or contracted, same really).

Your advice is priceless so (please!) stick around mate. That bearing needs a serious fix lollll

[FauxDiablo]

All the vibration and harmonics aside, I need to run this by you smart people...

I just reinstalled the IMS flange, reinstalled the chain tensioners, and removed the cam and crank locks. Do the following diagrams look as they should? I think they do, but just a little nod of approval would make it a great night!

Basically I am checking the timing on what appears to be a five chain system.

[Nine8Six]

Faux - I swear to god my intention wasn't to hijack your thread lolllll Although I've done that twice now in less than one week (I think)

Was under the impression you were making a statement about "its fine" and intended to leave that thread without a particular update.

Should have checked with you before. Sorry bud.

No idea on visuals above, can;t help. Those all look terribly complicated if you ask me (geez man). Hope someone here can give you a hand soon