Hybrid Gas Mileage Good? Bad? As Expected?

519 messages, Last post on Jan 16, 2007 at 6:14 AM

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What is this discussion about? Hybrid Cars, Fuel Efficiency (MPG)

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#41 of 519 Re: Prius MPG [misterme #38] by usbseawolf2000 Jul 07, 2004 (7:22 pm)
"The question is still unanswered... Can Prius get 59MPG average and drive 730miles from a single tank of gas without filling?" YES. . 85.7 MPG over 967 miles from a single tank of gas without filling. The red icon on the top left means that Prius had run out of gas. The next question is, can HCH do 85.7 MPG? Dennis Replies to this message: djasonw (Jul 07, 2004 7:28 pm) usbseawolf2000 (Jul 07, 2004 7:41 pm)
#42 of 519 Re: The Challenge Is On!! [djasonw] [misterme #40] by djasonw Jul 07, 2004 (7:27 pm)
Those that have LESS disposable income take glee in their wonderful mileage. Thank goodness I'm not one of those people. I just take glee in driving my fantastic Prius as opposed to the BORING HCH. I just get SO sleepy just thinking about it. Hey.. maybe I should trade in my Prius and get an HCH so I can get the same mileage as misterme... Nah... I hate being BORED.
#43 of 519 Re: Prius MPG [usbseawolf2000] by djasonw Jul 07, 2004 (7:28 pm)
Replying to: usbseawolf2000 (Jul 07, 2004 7:22 pm) Only if gerdes is driving it. LOL!!!!!!!!!!!!!!!!!!!!!!1 Replies to this message: usbseawolf2000 (Jul 07, 2004 7:41 pm)
#44 of 519 Re: Prius MPG [djasonw] by usbseawolf2000 Jul 07, 2004 (7:41 pm)
Replying to: djasonw (Jul 07, 2004 7:28 pm) "Only if gerdes is driving it." Actually, anyone could. Just set the cruise control to 35mph and let the computer do all the work. ;-D Gerdes effort not required! HAHAHAHA Dennis
#46 of 519 Re: [misterme] by usbseawolf2000 Jul 07, 2004 (7:57 pm)
"I suppose that's fine if that's your style but personally I like to drive around the speed limits" In another word, HCH can not achieve 85.7 MPG at any speed. What is the ceiling for HCH and at what speed? That would be interesting to know. "Didn't see your red icon" You dont' see that red icon that is covering the "C" of Comsumption? Dennis
#48 of 519 Re: [misterme #47] by usbseawolf2000 Jul 07, 2004 (8:31 pm)
"Where's your data?" There are no data. That's the whole point. No HCH has gotten 85.7 MPG at any speed. Maybe someone can find out the ceiling of HCH. The best candidate would be Mr.Gerdes. "No, I only see a blank unlinked picture box in IE or Netscape. Might be the firewall." Anyone see the picture? I can definately see it. If not, all my efforts of posting all the pictures are just a waste! Dennis
#49 of 519 The PSD is complex by toyolla2 Jul 07, 2004 (11:10 pm)
Hi USBSEAWOLF2000, When I said the PSD is too complex, that is what I meant. Your post seemed to infer that I was having trouble understanding it. I actually comprehend its workings quite well. But I stand by my statement. If you were to look in to the ..oo! website specifically the _STUFF board ( hoping I can slide this past SYLVIA) you will see that even at 9000+ posts they are still debating the principles of its operation !! And they are not all non-technical beneficiaries or genetic defectives over there as some would have you believe. I am going to get to the HCH later by the way. Lord Cavendish stated over a hundred years ago that if you can't put numbers to it then whatever it is, it is not science. In which light I cordially direct you to 8795 and 8804 which are somewhat damming of the PSD drivetrain. With that out the way I will now get to my main target for this evening - Honda. This is one lame system. And I will attempt to explain why. The usual explanation goes something like "since the electric motor can deliver rated torque at zero speed and an ICE can not" we can state that "the speed-torque characteristic of a typical electric motor is complementary to that of a high output gasoline engine". So with that in mind what do these geniuses do? Why, they conveniently slap a motor on the side of the 4 cyl and call it "integrated". And you can cover me with mustard and call me Hotdog too, but when the electric motor is only 10kw that makes about as much sense as for the WWF to pair Danny DeVito and Arnie Schwarzenegger as a wrestling tag team. What they should have done was take a planetary box with a 2.5:1 ratio, drive the planetary carrier a la Prius and connect the sun gear to the electric motor. This would have yielded a generous 90 ft-lbs instead of 36 ft-lbs. Two problems now arise 1. when engine does 6000 the motor will be doing 15000 but then GM's EV1 motor did 11900 (75mph )and it was 10 times larger. 2. Back EMF will cause (at higher revs) uncontrolled overvolting of the HV bus. [Body diodes become 3-phase full wave rectifier]. The solution is not to use a fixed field machine, remove those neodynium high energy magnets from the rotor and revert to a rotor excitation winding fed from slip rings (a more expensive solution) but you can now reduce the excitation at high revs and maintain full power from this motor over the full speed range. The increased torque during acceleration would allow the use of a smaller capacity engine. The 10 second burst of current would have to be within the discharge capability of the HV battery which may be Power limited. So I guess I am saying that there is not going to be a lot of difference between a Hybrid and a nonHybrid Honda as things stand, What you are getting is an Atkinised engine of lower performance which naturally is giving better mileage. If I went Honda I would buy the nonhybrid and keep myself from pressing hard on the loud pedal if I wanted to save gas. Replies to this message: usbseawolf2000 (Jul 08, 2004 10:52 am)