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#29 | |
![]() ![]() ![]() ![]() ![]() Drives: Dodge Ram Megacab & Cobalt SS Join Date: Sep 2008
Location: Boise
Posts: 1,536
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#30 | ||
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Geek
Drives: IOM 2010 Camaro 2SS Join Date: Oct 2008
Location: Orlando
Posts: 4,451
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Of course they probably see us as testosterone fueled assholes hell bent on destroying the world one burnout at a time but to each his own. |
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#31 |
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Account Suspended
Drives: car Join Date: May 2008
Location: location
Posts: 1,569
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JFTR let me try to clear this up, I never said this technology wasn’t “cool”, just complex.
Let me try and touch on it without writing a book. Hybrid systems do vary, but here is a typical application. You have a normal Internal Combustion Engine (engine) with all the sensors and controls associated with it (but no DC starter or alternator). Next is a computer controlled clutch pack (CP2). Then a three phase AC induction motor (motor). Another computer controlled clutch pack (CP1). And finally the computer controlled trans-axle driving the wheels. The motor is driven by an inverter that has three high current F.E.T.s (Field Effect Transistors) mounted on a “cool plate” circulating engine coolant to keep them from overheating. The inverter converts the DC battery pack current into three phase AC current (three AC phases separated by 120 deg.) to drive the three phase AC motor. OR when in regenerative braking mode or running down the highway with the engine running, it converts the 3 phase AC back into DC current to charge the battery pack. You get it the car and turn the key, the computer energizes gas filled, high current relays to connect the battery pack to the inverter. If the computer senses ANY latent current from either + or - battery pack lead to the chassis, electrical ground, etc. it will cause a fault and de-energizes the relays (car DOA). You step on the gas, CP1 engages and inverter provides current to motor and trans-axle drives wheels moving car forward. If you exceed around 20 MPH the computer now engages CP2 turning engine and computer starts it running as a normal I.C. engine. Motor is now acting as a generator charging battery pack through the motor. You slow down to less than 20 MPH, computer dis-engages CP2 and shuts down the engine. You touch the brakes, if CP1 is not engaged the computer does so so the motor can recharge the battery pack through the inverter ala re-generative braking which also helps slow the car. That is a lot of controls and sensors in addition to a normal engines systems. If one F.E.T. in the inverter fails you’re DOA. If the clutch pack 1 solenoid or clutch fails you’re DOA. If anything associated with clutch pack 2 fails you will soon be DOA, etc., etc. This is a lot of complexity for not that great of MPG gain IMO. My son’s aforementioned ’92 Lumina still gets 30 MPG on the highway and it took 4 months for them to figure out what was wrong with it. For me it is too much for too little, not even factoring the resources it takes to build a hybrid. But then again maybe I’m just a technophobe that doesn’t understand new technology. |
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#32 | |
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#33 | |
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The "Mad Hamster"
Drives: '71 Camaro, '90 mx5, '71 2002 Join Date: Oct 2007
Location: Placerville, CA
Posts: 1,610
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Oh and the "stereotype" that they are all smug isn't really a stereotype here, it's just the truth.
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#34 |
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Account Suspended
Drives: 02 Silverado, 09 Vue, 10 1SS Join Date: Aug 2008
Location: Tired of apologizing when we should be kickin' butt!
Posts: 1,962
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...He said Prius....... snicker!
I think those hybrids are hilarious! Last edited by patriotpa; 05-28-2009 at 05:10 PM. |
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#35 |
![]() ![]() Drives: 2010 Hyundai Genesis Coupe 2.0T Join Date: Dec 2008
Location: Mission, BC
Posts: 862
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You're really going to say that? Really?...REALLY?
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#36 |
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Account Suspended
Drives: 2010 Camaro 2SS/RS Join Date: Apr 2008
Location: New York
Posts: 3,746
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#37 |
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The "Mad Hamster"
Drives: '71 Camaro, '90 mx5, '71 2002 Join Date: Oct 2007
Location: Placerville, CA
Posts: 1,610
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Yes I am, because they are both true.
I'm not prejudice, the car itself is fine (even if incredibly over-hyped) it's just the owners that think it's the greatest thing ever made that bring it down.
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#38 | |
![]() ![]() Drives: Impala Join Date: Mar 2008
Location: Pittsburgh, Pa.
Posts: 813
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<-- Not religous <-- Not redneck <-- Never owned a gun <-- Definately WON'T own a Prius <-- Democrat <-- Buying a Volt <-- Buying a Camaro first. ![]() I'm not really saying anything with that part of the post, I'm just proud of who I am and what I love. I also enjoy crushing stereotypes under my foot. ![]() And just in case people are keeping track, I've only seen 2 Prius' in Western PA. Ever. And I think it was the same one twice because I seen them both on the same street..lol. Don't like a Prius? Move to Pittsburgh. But you better be okay with idiots who can't park big trucks parking 3 inches from your driver side door at the grocery store. |
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#39 |
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you just made a judgement call on thousands of people you DO NOT KNOW, you sir fail.
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#40 | |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 95 civic Join Date: Apr 2008
Location: Chicago Illinois
Posts: 5,796
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#41 |
![]() ![]() Drives: Impala Join Date: Mar 2008
Location: Pittsburgh, Pa.
Posts: 813
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