News for hackers. Stuff that matters.

A comment on Students create device to capture car tyre microplastic debris. Parent comment

Re:Students create device to capture car tyre microplastic d... by nitrogen on Sunday November 29, 2020 @06:17PM (#25249029)
Rolling friction in the tires / the contact patch's static friction.
[ Parent | on HN ]
Re:Students create device to capture car tyre microplastic d... by culopatin on Sunday November 29, 2020 @07:31PM (#25249519)
This variable is a constant between both types of brakes. How is this relevant when comparing brakes? They both need it, one puts energy into a battery, the other one just heats up air due to the friction created by the system.
[ Parent | on HN ]
Re:Students create device to capture car tyre microplastic d... by nitrogen on Sunday November 29, 2020 @09:41PM (#25250243)
It's relevant to the question of whether regenerative braking produces dust from tire wear.
[ Parent | on HN ]
Re:Students create device to capture car tyre microplastic d... by TheGallopedHigh on Monday November 30, 2020 @02:25AM (#25251470)
As compared to just straight braking — hence it’s irrelevant
[ Parent | on HN ]
Re:Students create device to capture car tyre microplastic d... by nitrogen on Monday November 30, 2020 @04:14AM (#25252055)
The whole thread started with this message:

> Regenerative brakes rely on friction just like any other. Pollution is a given.

The article is about pollution from tires. Regenerative breaking can't cheat the laws of physics. That force has to be applied to the road through tires, just like any other form of wheel braking. And tires have significantly more mass to shed over their lives than brake pads.

[ Parent | on HN ]