A good digital oscilloscope?
in [Design]
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From: krw on 16 Dec 2009 18:53 On Wed, 16 Dec 2009 16:40:40 -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: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. You betcha. My Vision and Intrepid both had "traction control" systems. They "worked" just like you say. On ice they were worthless and on snow would do unexpected things to *try* to maintain traction. A skid was preferable. The "off" button was in a handy place on the dash for good reason.
From: Joerg on 16 Dec 2009 19:09 Jim Thompson wrote: > 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 :-) > Sure I'd lose that, my Mits doesn't have the horses to race plus weighs almost two tons. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Joerg on 16 Dec 2009 19:11 Michael A. Terrell wrote: > 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. > What do you think the Vikings have these rallye schools for? http://www.chooseyourevent.com/images/company/extswe1(1).jpg -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Michael A. Terrell on 16 Dec 2009 19:16 krw wrote: > > Michael A. Terrell wrote: > > > > 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. > > That's true, but it doesn't mean there are some things that can be > done with a manual transmission that cannot be done with an automatic. The only advantage I've seen with a manual transmission is 'granny gear', where you top out at 5 MPH but can pull a house off its foundation. Or push someone out of your way when they are blocking the road on purpose. Contrary to the claims about brakes keeping a vehicle from moving, they can't stop something in that gear. -- Offworld checks no longer accepted!
From: krw on 16 Dec 2009 19:47
On Wed, 16 Dec 2009 19:16:46 -0500, "Michael A. Terrell" <mike.terrell(a)earthlink.net> wrote: > >krw wrote: >> >> Michael A. Terrell wrote: >> > >> > 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. >> >> That's true, but it doesn't mean there are some things that can be >> done with a manual transmission that cannot be done with an automatic. > > > > The only advantage I've seen with a manual transmission is 'granny >gear', where you top out at 5 MPH but can pull a house off its >foundation. Or push someone out of your way when they are blocking the >road on purpose. Contrary to the claims about brakes keeping a vehicle >from moving, they can't stop something in that gear. Engine braking is far superior with a manual as is rolling friction (or lack of it). It's much easier to control a car with a manual on ice than an auto. That's just a simple fact. I've had many cars of each variety and would take a manual in bad weather every time. |