A good digital oscilloscope?
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From: Joerg on 16 Dec 2009 17:10 Jim Thompson wrote: > On Wed, 16 Dec 2009 15:33:12 -0600, Jim Yanik <jyanik(a)abuse.gov> > wrote: > >> Jim Thompson <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com/Snicker> >> wrote in news:tqthi55bns8p7896nfrdgd756uj45au2qc(a)4ax.com: >> >>> On Wed, 16 Dec 2009 06:55:48 -0800, Joerg <invalid(a)invalid.invalid> >>> wrote: >>> >>>> Michael A. Terrell wrote: >>>>> Joerg wrote: >>> [auto-snip] >>>>>> You were lucky with your automatics. I know numerous people who >>>>>> have either given up cars or paid north of $2k after the automatic >>>>>> transmission croaked. My old Audi (manual) is now beyond 200,000km >>>>>> and since the new owner and I are friends we talk a lot on the >>>>>> phone. The only things he ever mentioned was a repair after a >>>>>> motorcyclist took an illegal sidewalk ride and crashed into the >>>>>> front, plus after a frozen food truck backed into it. But no clutch >>>>>> job. >>>>>> >>>>>> What I really don't like with automatics is when you get onto ice >>>>>> and they shift on you. >>>>> >>>>> Then you don't know how to drive a vehicle with an automatic >>>>> transmission on ice. I took a survival driving course on wet ice in >>>>> a 1/2 ton pickup truck with an automatic while in the Army. Their >>>>> logic was, "If you can do it with an automatic transmission, you can >>>>> do it with a manual transmission." BTW, the test was conducted by >>>>> the National Safety Council. >>>>> >>>> True, I don't know that. A race car driver once said that an automatic >>>> will, in our lifetime, probably never be as good as a manual to handle >>>> one you get onto a surprise patch of ice. Load change reaction is so >>>> much faster because it ain't sloshing all this stuff around. >>> Ummmmm? My Q45 has automatic _stability_ control. >> which COMPENSATES for the failings of the auto transmission.... >> and the driver. >> ;-) > > It's some kind of traction control. Not quite sure how it works, but > supposed to prevent Joerg's hypothetical loss of control when you hit > ice. > If you mean the ESP that luxury cars have: That can cut throttle and automatically apply some braking. But that is still _not_ the same as pressing the clutch and achieving immediate coasting. Ask a professional race car or rallye driver. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Jim Yanik on 16 Dec 2009 17:40 Jim Thompson <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com/Snicker> wrote in news:93mii5dmtg0qtefmd28a7ullh0gu9f62dm(a)4ax.com: > On Wed, 16 Dec 2009 15:33:12 -0600, Jim Yanik <jyanik(a)abuse.gov> > wrote: > >>Jim Thompson <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com/Snicker> >>wrote in news:tqthi55bns8p7896nfrdgd756uj45au2qc(a)4ax.com: >> >>> On Wed, 16 Dec 2009 06:55:48 -0800, Joerg <invalid(a)invalid.invalid> >>> wrote: >>> >>>>Michael A. Terrell wrote: >>>>> Joerg wrote: >>> [auto-snip] >>>>>> You were lucky with your automatics. I know numerous people who >>>>>> have either given up cars or paid north of $2k after the automatic >>>>>> transmission croaked. My old Audi (manual) is now beyond 200,000km >>>>>> and since the new owner and I are friends we talk a lot on the >>>>>> phone. The only things he ever mentioned was a repair after a >>>>>> motorcyclist took an illegal sidewalk ride and crashed into the >>>>>> front, plus after a frozen food truck backed into it. But no clutch >>>>>> job. >>>>>> >>>>>> What I really don't like with automatics is when you get onto ice >>>>>> and they shift on you. >>>>> >>>>> >>>>> Then you don't know how to drive a vehicle with an automatic >>>>> transmission on ice. I took a survival driving course on wet ice in >>>>> a 1/2 ton pickup truck with an automatic while in the Army. Their >>>>> logic was, "If you can do it with an automatic transmission, you can >>>>> do it with a manual transmission." BTW, the test was conducted by >>>>> the National Safety Council. >>>>> >>>> >>>>True, I don't know that. A race car driver once said that an automatic >>>>will, in our lifetime, probably never be as good as a manual to handle >>>>one you get onto a surprise patch of ice. Load change reaction is so >>>>much faster because it ain't sloshing all this stuff around. >>> >>> Ummmmm? My Q45 has automatic _stability_ control. >> >>which COMPENSATES for the failings of the auto transmission.... >>and the driver. >>;-) > > It's some kind of traction control. Not quite sure how it works, but > supposed to prevent Joerg's hypothetical loss of control when you hit > ice. > > ...Jim Thompson it's an extension of ABS; the wheel speed sensors are monitored by a computer that looks for wheels not moving at the same rate as the others,and then applies individual brakes and/or reduces throttle to get everything back to nominal. It may also use accelerometers to detect side skids. but once a wheel breaks loose on ice and puts your car into a spin or bad skew,there's really no recovery. you have to come to a stop. -- Jim Yanik jyanik at localnet dot com
From: Jim Thompson on 16 Dec 2009 17:56 On Wed, 16 Dec 2009 14:10:03 -0800, Joerg <invalid(a)invalid.invalid> wrote: >Jim Thompson wrote: >> On Wed, 16 Dec 2009 15:33:12 -0600, Jim Yanik <jyanik(a)abuse.gov> >> wrote: >> >>> Jim Thompson <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com/Snicker> >>>> [auto-snip] >>>> Ummmmm? My Q45 has automatic _stability_ control. >>> which COMPENSATES for the failings of the auto transmission.... >>> and the driver. >>> ;-) >> >> It's some kind of traction control. Not quite sure how it works, but >> supposed to prevent Joerg's hypothetical loss of control when you hit >> ice. >> > >If you mean the ESP that luxury cars have: Seems that's what _I_ drive ;-) >That can cut throttle and >automatically apply some braking. But that is still _not_ the same as >pressing the clutch and achieving immediate coasting. > >Ask a professional race car or rallye driver. How 'bout we meet at Firebird/Bondurant, just a few miles south of me... maybe during the Spring SED event here at my place... and you can show me (and everyone else) how good a driver you are ?:-) How 'bout I arrange a Formula-V race betwixt the two of us ?:-) Yousa gonna lose.... BIG :-) ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Help save the environment! Please dispose of socialism properly!
From: Michael A. Terrell on 16 Dec 2009 18:43 Joerg wrote: > > Jim Thompson wrote: > > On Wed, 16 Dec 2009 15:33:12 -0600, Jim Yanik <jyanik(a)abuse.gov> > > wrote: > > > >> Jim Thompson <To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com/Snicker> > >> wrote in news:tqthi55bns8p7896nfrdgd756uj45au2qc(a)4ax.com: > >> > >>> On Wed, 16 Dec 2009 06:55:48 -0800, Joerg <invalid(a)invalid.invalid> > >>> wrote: > >>> > >>>> Michael A. Terrell wrote: > >>>>> Joerg wrote: > >>> [auto-snip] > >>>>>> You were lucky with your automatics. I know numerous people who > >>>>>> have either given up cars or paid north of $2k after the automatic > >>>>>> transmission croaked. My old Audi (manual) is now beyond 200,000km > >>>>>> and since the new owner and I are friends we talk a lot on the > >>>>>> phone. The only things he ever mentioned was a repair after a > >>>>>> motorcyclist took an illegal sidewalk ride and crashed into the > >>>>>> front, plus after a frozen food truck backed into it. But no clutch > >>>>>> job. > >>>>>> > >>>>>> What I really don't like with automatics is when you get onto ice > >>>>>> and they shift on you. > >>>>> > >>>>> Then you don't know how to drive a vehicle with an automatic > >>>>> transmission on ice. I took a survival driving course on wet ice in > >>>>> a 1/2 ton pickup truck with an automatic while in the Army. Their > >>>>> logic was, "If you can do it with an automatic transmission, you can > >>>>> do it with a manual transmission." BTW, the test was conducted by > >>>>> the National Safety Council. > >>>>> > >>>> True, I don't know that. A race car driver once said that an automatic > >>>> will, in our lifetime, probably never be as good as a manual to handle > >>>> one you get onto a surprise patch of ice. Load change reaction is so > >>>> much faster because it ain't sloshing all this stuff around. > >>> Ummmmm? My Q45 has automatic _stability_ control. > >> which COMPENSATES for the failings of the auto transmission.... > >> and the driver. > >> ;-) > > > > It's some kind of traction control. Not quite sure how it works, but > > supposed to prevent Joerg's hypothetical loss of control when you hit > > ice. > > > > If you mean the ESP that luxury cars have: That can cut throttle and > automatically apply some braking. But that is still _not_ the same as > pressing the clutch and achieving immediate coasting. > > Ask a professional race car or rallye driver. They won't race on a damp track, let alone ice. -- Offworld checks no longer accepted!
From: Michael A. Terrell on 16 Dec 2009 18:45
Joerg wrote: > > Michael A. Terrell wrote: > > Joerg wrote: > >> Joel Koltner wrote: > >>> "Joerg" <invalid(a)invalid.invalid> wrote in message > >>> news:7opq9mF3qhhh3U1(a)mid.individual.net... > >>>> We still learned how to hobble a stalled car off railroad tracks by > >>>> using starter, clutch and first gear. Of course now they have switches > >>>> on the clutch that don't let the starter engage unless fully depressed > >>>> which defeats that extra safety measure. > >>> I would have to guess the the ratio of how often people damaged or > >>> ruined their starter or gearbox from trying to start without the clutch > >>> all the way in to how often someone ended up with a stalled car on > >>> railroad tracks is perhaps about a million to one? :-) > >>> > >> AFAIK you can't easily ruin the gear box even with the clutch released > >> and in gear. The starter, yes, but even that will take a while if it's a > >> good quality one. > >> > >>>> But they all have to keep sloshing around some of the oil around the > >>>> shaft lock. There's a reason why even new automatic transmissions run > >>>> hotter than gear boxes. And warmer = more losses. > >>> Apparently what makes new automatics as efficient or even a little more > >>> so than manuals is hitting the optimal shift points better than your > >>> average human does. > >>> > >> Not sure, since the automatic can't see a slope or a curve coming up. > >> Maybe some day it can and it's all GPS-linked. And then the computer > >> goes on the fritz ;-) > > > > > > Don't buy anything from Eurpoe. > > > > Why not? The marzipan and brandy beans from there are quite good :-) In your opinion. -- Offworld checks no longer accepted! |