What I learnt from charging my Prius
in [Toyota]
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From: Daniel who wants to know on 4 Jan 2010 20:30 "Elmo P. Shagnasty" <elmop(a)nastydesigns.com> wrote in message news:elmop-7E5E2A.20111504012010(a)nothing.attdns.com... > In article <pan.2010.01.04.15.36.46.623365(a)e86.GTS>, > Hachiroku �?n�?`�?�N <Trueno(a)e86.GTS> wrote: > >> The batteries are not interconnected, and there's no way they could be. >> The batteries running the drive system are 280V > > 201v. NHW10: 288V NHW11: 273.6V NHW20: 201.6V ZVW30: 201.6V
From: Al Falfa on 4 Jan 2010 22:46 "Elmo P. Shagnasty" <elmop(a)nastydesigns.com> wrote in message news:elmop-E22E9E.20103204012010(a)nothing.attdns.com... > In article <4b427ce1(a)newsgate.x-privat.org>, > "Al Falfa" <crop(a)eastforty.fld> wrote: > >> The Volt has a gas tank and a battery. >> The Prius has a gas tank and a battery. Both have two energy supplies. > > Absolutely not. The Prius has exactly one energy supply: gasoline. No > other form of energy is placed into the car from any other source. > Let's not get into the kinetic energy thing again. You can split hairs all you want, Elmo, but most cars can't run on the kinetic energy they capture.
From: urod on 5 Jan 2010 06:43 On 5 Ñнв, 01:13, "Daniel who wants to know" <m...(a)here.edu> wrote: > "urod" <npisa...(a)gmail.com> wrote in message > > news:1b702ee8-f984-4f57-be25-96ddeba7391b(a)e27g2000yqd.googlegroups.com... > > > > > (1) I bought a car battery charger (namely, Hella power-charger) and > > put it to the 12V battery. Nothing happened.  I waited for 30 > > minutes.  Nothing happened still.  Maybe the charger was defective. > > New switched mode chargers will not turn on unless they sense some minimum > voltage of the correct polarity on the leads.  If the 12v is discharged to 0 > volts the charger won't turn on. In this case you need an old "dumb" charger > to bring the voltage up so that the "smart" charger will start charging. > > > (2) With two cables, I connected the 12V battery to the 12V battery of > > another car.  I hit the Power button, my car turned on.  The power > > meter showed half-full 200V battery (5 blue lines).  The system did > > not switch on the engine.  I waited for 1 minute. > > You probaly didn't push the brake pedal far enough and the car was in IG-ON > mode instead of READY mode. No, I drive Prius for two years, and there were no problems weith not pushing my brake pedal far enough. Besides, I saw the green, not red, light on the Power button, which means the car was in the Running mode. > > > (3) I disconnected the 12V battery.  My car turned off.  I hit the > > Power button.  Nothing.  Not surprising at all, considering that the > > system hadn't switch on the engine at the previous step, so it > > couldn't charge the 12V battery. > > 12V charge has nothing to do with the engine running as the car does not > have a 12v starter or alternator. I don't understand this part. What starter it has? Which battery starts the engine? > > > (4) I connected the batteries again and turned the joystick to the > > "R" (Reverse) position.  The road was tilted downwards, so the system > > switched on the engine, which started to charge the battery.  Only > > this way I was able to charge it. > > You must have managed to hit READY instead of IG-ON this time. I hit READY at the first time, too. > > > (5) After disconnection the batteries, the power meter showed almost > > empty 200V battery (1 red line).  I cannot explain the behaviour of > > the power meter, unless two batteries are interconnected (via DC-DC > > converter) > > The DC-DC is only active any time the READY symbol is lit up so 12V charge > is only dependant on READY it has nothing to do with anything else. READY is > also a sign that the system main relays on the HV battery are closed and > allowing power to the inverter. > > NIMH state of charge cannot be determined by voltage alone so the battery > ECU has to guess what the SoC is any time 12v power is lost.  You could > probably disconnect and reconnect the 12v battery 5 times and get a > different HV SoC reading each time.  FWIW 1 pink/red bar is actually 40% SoC > and all green bars is actually 80-82% SoC.  This 40-80% window is the main > part of why the battery lasts as long as it does. I never saw 1 pink bar before. The car was always at least 2 pink bars.
From: Al Falfa on 5 Jan 2010 10:42 "Elmo P. Shagnasty" <elmop(a)nastydesigns.com> wrote in message news:elmop-589B7B.06040005012010(a)nothing.attdns.com... > In article <4b42b602(a)newsgate.x-privat.org>, > "Al Falfa" <crop(a)eastforty.fld> wrote: > >> > Absolutely not. The Prius has exactly one energy supply: gasoline. >> > No >> > other form of energy is placed into the car from any other source. >> > >> Let's not get into the kinetic energy thing again. You can split hairs >> all >> you want, Elmo, but most cars can't run on the kinetic energy they >> capture. > > It doesn't matter how the Prius manages the available energy; what > matters is how you put energy into the drive system, period. > > With the Prius, you put in gasoline. Period. The Prius is not an > electric car, anymore than your television is a microcomputer. > > The Volt, however, takes electricity in from the outside. Way, way > different--and that makes it an electric car. I suppose you will be pulling the batteries and MGs from your Prius then. This will lighten your load and should, by your reasoning, improve your gas mileage.
From: Mike Hunter on 5 Jan 2010 11:50
You are entitled to you own opinion no mater how convoluted it may be. The engine, that only runs the generator and can NOT motivate the vehicle, runs at a constant RPM for maximum efficiency. The EPA is currently working on a CAFE method for pure electrics. The current rating method used for HYBRIDS would require the EPA to indicate over 120 MPG for the Volts city mileage. "dr_jeff" <utz(a)msu.edu> wrote in message news:bKGdnUnr6teoEN_WnZ2dnUVZ_hKdnZ2d(a)giganews.com... > Mike Hunter wrote: >> The Volt is technology that is years ahead of any hybrid, it is a true >> electric, dummy. It's only motivate source of power to the wheels is >> its electric motor. The engine can not motivate the vehicle. Hybrids >> are outdated technology. If you do not drive over 40 miles at a time >> and plug it in, the engine will never need to run. > > Actually, it is a hybrid. It is called a "plug-in hybrid." And you call > the other poster a dummy. A hybrid means it uses more than one source of > energy. And it does. It uses both gasoline (or another fuel like diesel or > ethanol) and electricity. > > Jeff > >> "Al Falfa" <crop(a)eastforty.fld> wrote in message >> news:4b427ce1(a)newsgate.x-privat.org... >>> >>> "Mike Hunter" <Mikehunt2(a)lycos,com> wrote in message >>> news:4b427522$0$6398$ce5e7886(a)news-radius.ptd.net... >>>> You are confused! The Volt, unlike the Prius hybrid, is a true >>>> electric vehicle. The only thing its engine does is drive the >>>> generator. The Volt could be left "on" indefinitely, there is no flow >>>> of current until you active the motor. >>>> >>> A distinction without a difference. The Volt has a gas tank and a >>> battery. The Prius has a gas tank and a battery. Both have two energy >>> supplies. Both are hybrids, the specific hardware for turning the wheels >>> not-with-standing. >>> >>> >> |