Path: csiph.com!2.eu.feeder.erje.net!3.eu.feeder.erje.net!feeder.erje.net!newsfeed.bofh.team!news.tcpreset.net!newsgate.tebibyte.org!.POSTED.48.red-79-150-116.dynamicip.rima-tde.net!Telcontar.valinor!not-for-mail From: "Carlos E.R." Newsgroups: comp.os.linux.advocacy,comp.os.linux.misc Subject: Re: OT - TV Date: Sat, 10 Oct 2026 19:29:46 +0200 Organization: Tebibyte_Retro_Gaming Message-ID: References: <118cshs$2v7m0$1@dont-email.me> <119is9d$68cr$1@dont-email.me> <119j2qg$8pgq$1@dont-email.me> <119m338.o7c.1@ID-201911.user.individual.net> <119qnr6$2urls$1@dont-email.me> <119qr92$2vglb$2@dont-email.me> <119r8k4$3515t$1@dont-email.me> <119tba1$3quvc$1@dont-email.me> <11a38uf$24fks$1@dont-email.me> <11a4u79$2lnse$1@dont-email.me> <11a55g7$2nipf$4@dont-email.me> <11a5at8$2nipf$18@dont-email.me> <11a80sh$3pnm3$4@dont-email.me> <11a90dj$7ae1$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Info: mailgate.tebibyte.org; posting-host="48.red-79-150-116.dynamicip.rima-tde.net:79.150.116.48"; logging-data="22318"; mail-complaints-to="abuse@tebibyte.org" User-Agent: Mozilla Thunderbird Content-Language: es-ES, en-CA In-Reply-To: X-Leafnode-NNTP-Posting-Host: 127.0.0.1 Xref: csiph.com comp.os.linux.advocacy:723608 comp.os.linux.misc:93309 On 2026-10-10 02:46, rbowman wrote: > On Fri, 9 Oct 2026 22:32:09 +0200, Carlos E. R. wrote: > >> Over here big trucks (I don't know about tractor+trailers, harder to >> see) >> have some sort of electric brake. Seems like a big generator installed >> on the longitudinal axle. Maybe they short circuit it, or put some >> resistors across the terminals. Or maybe they apply battery electricity >> to electromagnets near a moving metal disc(s). > > afaik only e-trucks have systems like that so far. 'Electric brakes' are > used on some smaller trailers. They are conventional brakes actuated by > electric solenoids where the towing vehicle doesn't have an air > compressor. They're definitely better than nothing. I don't mean that type. These are well ventilated things designed to be used continuously during a down slope to contain a big, heavy truck. It is non-friction. Based on eddy currents. I give the Spanish link because the photo is from a lorry unit. The English article is different. > > I briefly worked for a railroad in the early '70s so my information may be > dated. They did have regenerative braking since the traction motors were > electric, hence diesel-electric. The motors were shunted to a very large > resistor bank. > > https://en.wikipedia.org/wiki/List_of_EMD_locomotives#/media/ > File:CCP_2008_19930000_IL.jpg > > The resistor compartment is at the read. You can make out a little bit of > the fan than was solely used to dissipate the wasted energy from the > resistors rather than cooling the diesel. Yes, I have seen those things in many locomotives here. -- Cheers, Carlos. ES🇪🇸, EU🇪🇺;