#3,271 in Automotive
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Reddit mentions of Cole Hersee (M-628-BP) SPST Push-Pull Switch
Sentiment score: 1
Reddit mentions: 1
We found 1 Reddit mentions of Cole Hersee (M-628-BP) SPST Push-Pull Switch. Here are the top ones.
or
- Throw/Pole Spst
- Color Chrome Plated
- Package Dimensions: 4.597 L X 15.798 H X 7.010 W Centimeters
- Product Type:Electronic Switch
- Fit type: Vehicle Specific
Features:
Specs:
| Height | 1.6 Inches |
| Length | 5.6 Inches |
| Number of items | 1 |
| Release date | March 2013 |
| Weight | 0.2 Pounds |
| Width | 2.6 Inches |
https://www.amazon.com/Cole-Hersee-M-628-BP-Push-Pull-Switch/dp/B000KKFVLS
This is similar to what our team is using. Once it gets depressed, it physically breaks the shutdown circuit.
It mechanically stays depressed until physically pulled back into place and reset.
Because this switch is behind the pedal to be activated only at the extreme end of pedal travel (that should otherwise take a slight effort with the hydraulics fully functioning but will be super-easy if they go out), it's a real pain in the ass for the driver to get to it and reset it. So even if it's not a proper latching fault electrically, it is, in effect (mechanically.)
You shouldn't need any additional circuitry apart from the BOTS.The wording of the rules is to afford design flexibility. You don't have to use the exact switch style I have above if you need to get creative, but they do want:
- The mechanical switching action to physically break the current
- Repeated "presses" not to matter once it's been depressed the first time.
They've done a pretty good job of just hammering out the minimums they want for safety. In theory, you could use additional circuitry to jerry-rig other switches to work that weren't initially intended to work like the switch I posted above (which is perfect for this). Sounds like an unnecessary, but totally justified "Senior Project" for someone...