Brake Temperature Monitor Update

hwybnb · 06-19-2008, 06:17 PM

A while back Streamerman published an interesting series of messages describing his project to build a brake temperature monitoring system. I mentioned at the time that I was working on something along the same line. There have been a few roadblocks along the way including a fractured wrist and hernia surgury but I have at last completed my version. I haven't made any trips with it so don't have any data but will report in August when i do.

hwybnb · 06-19-2008, 06:17 PM

A while back Streamerman published an interesting series of messages describing his project to build a brake temperature monitoring system. I mentioned at the time that I was working on something along the same line. There have been a few roadblocks along the way including a fractured wrist and hernia surgury but I have at last completed my version. I haven't made any trips with it so don't have any data but will report in August when i do.

Ron & Dee · 06-20-2008, 12:31 AM

Brilliant, Brilliant, Brilliant

Thanks to all of those who are trying to find solutions and help in solving our brake problems

Keep up the good work,

Ron

BellaBo · 06-20-2008, 04:15 AM

hwybnb......
This looks great and very professional. I haven't had a chance to update on my system performance since returning from our Branson trip but will soon.

I especially like your TC mounting procedure. much more accurate than a surface mount.

I'll be interested in hearing about it's performance on a long trip.

Good work!

oemtech · 06-20-2008, 04:38 AM

Outstanding....
This belongs in Oemy's "Skunk Works"

Could you list all the various parts used as some of just may want to build one.... $200 - $300 is cheap insurance.

hwybnb · 06-20-2008, 05:15 AM

oemtech: I will expand the parts list on the web page to provide more detail.

dieselclacker · 06-20-2008, 06:07 AM

hwybnb,

Really, nice professional looking job you did on the brake heat monitoring system.

Would really be even nicer if you could incorporate a pressure monitor in each of the hydraulic lines next to the calipers. This would either prove, or eliminate a hydraulic problem, as being the culprit, causing brake overheating problems that have been expierienced by some owners.

Again, Nice job!!

Dieselclacker

Tom N · 06-20-2008, 06:43 AM

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Streamerman:

I especially like your TC mounting procedure. much more accurate than a surface mount.

</div></BLOCKQUOTE>

Nice job hwybnb.

Streamerman, aren't these surface mounted??

"Temperature sensors are commercial Type K thermocouples. They are attached directly to the brake pad backing plates using holes drilled and tapped to accept #10 machine screws."

-Tom

hwybnb · 06-20-2008, 06:50 AM

About TC mounting:

A bolted connection is the only practical way to go. Anticipated temperatures (possibly over 500 degrees) are too high for any adhesive that I know of.

I initially bolted the thermocouples to the caliper housing because I could use existing tapped holes but the results were not satisfactory. There was too much difference between what I was reading there and the actual rotors. Bolting to the backing plates was suggested by an engineer at Bendix. I tried several times to contact someone at Bosch to discuss the project but they apparently do not speak to consumers.

BellaBo · 06-21-2008, 07:55 AM

Tom N....
Yes, they are surface mounted. What I meant was the way hwybnb explained his first mounting procedure using existing tapped holes. This is the way I mounted mine too.
I believe his new way with the tapped hole to the brake pad plate will give much more accurate temperature reading.

Joe Gilbert · 06-24-2008, 10:14 AM

Wow, very nice job. Too bad Bosch would not talk with you, they might learn things about their product which they do not know. I worked 40 years for a semiconductor Mfg. and the last six years as a senior applications engineer. We made it easy for anyone to talk with us. When I couldn't answer a question I could get the design engineers on the line with the customer. I really don't know why every business isn't run that way. We were not the size of Bosch but were a 300 million a year guy.

I would like to copy your design but not sure I'm that ambitious. Perhaps the hand-held route.

jdsr · 06-24-2008, 10:23 AM

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Joe Gilbert:
Too bad Bosch would not talk with you, they might learn things about their product which they do not know. </div></BLOCKQUOTE> Oh believe me they know and so does workhorse.Still waiting on NHTSA.