Here is one thing that is on my mind for about 40 years….
back then I had the idea of exactly this kind of parking brake system… electric actuators for mechanical calipers… when I was in school in Germany for Master Mechanics….
I showed my teacher my drawings and explained my idea and here is his response:
”…your idea would work as a parking brake but it is NOT a valid proposal as this system has to serve as an emergency braking system as well! Your system can not be modulated and would lock up the rear wheels in the event of a general brake failure! … it has to serve as an E-brake (at least back then) The car would spin out of control….”
And that was the end of my Idea!
And I had quite a few more ideas that got shot down and are in use today.. 40 years later….😢
Electromagnetic actuated valves… hydraulically actuated variable cams.. Direct injection for gasoline powered engines…
40 years ago I drew them up and got told that my ideas aren’t working….