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Originally Posted by out2kayak
On 2, there is always NVH with any vehicle traveling down the road. We have different frequency profiles depending on how the chassis is setup and design our mechanical attachments to not transmit anything that would be harmful to the electronics. Also don't forget about the exhaust note and its impact. A bit of shock and vibration simulation should help, but normally we use test beds to shake and bake the hardware. See: https://blogs.solidworks.com/solidwo...ified-use.html
On 3, don't forget condensation. Last time I was in Texas I was in San Antonio in the winter. As memory serves, the windows can get fogged, which is moisture. Also, I seen a bunch of videos on Texas having power issues when it got cold.
On 4, are you also going to put in a voltage regulator that will shut it off if the battery discharges past a certain point (i.e., to a level that would not work with the electronics)?
Just a few things to think about when your planning. There are housings that are completely sealed to protect the housed electronics. Then use the case shell as a conductor of heat. Just have to do the math to make sure everything will work out well. We do this with desert sealed units and we have stirring fans in the sealed up case so as to eliminate overly hot spots and use conduction to a large air based heatsink. You can model this with Solidworks (see: https://www.engineersrule.com/therma...ow-simulation/).
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2. I can mount the module case on rubber to help isolate it. Exhaust wise I'm planning on keeping it somewhat quiet, plus the addition of sound deadner.
3. We do get a lot of dew. If its in the car then that's a problem. A sealed enclosure should take care of that tho. Cold wise I don't plan on driving it too much when its that cold. Lots of power, San Antonio roads, and summer performance tires are not a good match.
4. Voltage wise its going to depend on what the module needs to run. My ECM has 5v power supply so that's a clean voltage source. If I need 12v I think there maybe a few sensors that I'm not using that I can pull the 12v from through the ECM which would also be a clean 12v vs. pulling from the battery that can very a lot.
You mean you can do it in solidworks, I'm lucky I can tie my own shoes lol. I do have a old heat sink from a blower motor resistor I saved that I could work into a module mount box. Actually I could model one up and 3d print it in such a way that the pins poke through the box and I could use thermal paste in between the circuit board and the sink.