Hybrid discussion Thread. - Autos (24) - Nairaland
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| Re: Hybrid discussion Thread. by kingreign(m): 2:42pm On Jun 25, 2019 |
GAZZUZZ: Na wa o. Abeg make the rain calm down Biko. Plenty things dey to achieve. 1 Like |
| Re: Hybrid discussion Thread. by obekediamondfuto(m): 2:59pm On Jun 25, 2019 |
| Re: Hybrid discussion Thread. by GAZZUZZ(m): 4:34pm On Jun 25, 2019 |
How a regular 4 stroke engine works. Most spark ignition engines since the dawn of motoring have employed a four-stroke thermodynamic cycle developed in the late 19th Century by a German engineer named Nikolaus Otto. But in more recent years, a modified version of this ‘Otto’ cycle has grown in popularity. Commonly known as the ‘Atkinson’ cycle, it has been employed in all vehicles with Lexus Hybrid Drive technology and has now been adopted in some of the manufacturer’s latest high-performance models, such as the Lexus RC F. Why is this the case, and what is the difference between these two cycles?  The Otto Cycle Four-stroke engines have four separate phases within a traditional Otto cycle, produced by two revolutions of the crankshaft and precise valve and ignition timing. As you can see from the animation below, these phases are: 1) intake, 2) compression, 3) combustion and 4) exhaust. Each corresponds to a full piston stroke inside the cylinder. The cycle begins with a downward piston stroke, which draws a mixture of air and vapourised fuel through the intake port into the combustion chamber. The upward stroke of the returning piston compresses this mixture to around one-tenth of its volume, at which point it is ignited by the spark plug. This explosion drives the piston downward in a stroke that gives the engine its thrust. The final return stroke of the cycle evacuates the spent gases via the exhaust port so that the process can begin again. But while this relatively straightforward cycle produces a satisfactory power output, it is not the most fuel-efficient means of generating power from a four-stroke piston engine. That accolade goes to engines running the Atkinson cycle. The Atkinson Cycle Patented in 1882 by British engineer James Atkinson, the Atkinson cycle significantly improved the fuel-efficiency of a four-stroke spark ignition engine through one particularly ingenious modification. The four basic phases of the Otto cycle remained but Atkinson introduced a new timing sequence to delay the closing of the intake valve during the compression stroke. Keeping the intake valve open slightly longer effectively reduced the engine’s displacement during the intake cycle but retained the full ratio of expansion in the combustion or power stroke. In simple terms, the Atkinson cycle was designed to minimise the use of fuel during the intake stroke yet exploit the part of the cycle that generates power. Read more.. https://blog.lexus.co.uk/atkinson-cycle-engine-work/ 2 Likes
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| Re: Hybrid discussion Thread. by GAZZUZZ(m): 4:36pm On Jun 25, 2019 |
question I was waiting for is would the engine computer in the regular gasoline engine startup the Atkinson cycle engine? Interactive session. 2 Likes |
| Re: Hybrid discussion Thread. by kingreign(m): 4:40pm On Jun 25, 2019 |
GAZZUZZ: It will but it won't run fine. |
| Re: Hybrid discussion Thread. by AutoMoTech(m): 5:31pm On Jun 25, 2019 |
GAZZUZZ:I believe it would. It would run the engine just like the normal engine. With all the intake, compression, Power and exhaust strokes happening as it should. Bt i am a bit skeptical since the hybrid engine has a different cam profile and piston design different from the regular engine. That "might" change the way the engine will run. Dis is off my head. Now leme gaan do my research....  2 Likes |
| Re: Hybrid discussion Thread. by hastane: 5:34pm On Jun 25, 2019 |
radautoworks:you fix hybrids in your shop too?how can you help here?let the followers learn too. |
| Re: Hybrid discussion Thread. by GAZZUZZ(m): 6:16pm On Jun 25, 2019 |
obekediamondfuto: The owner de do shakara..... But will conclude tomorrow morning. good cars don't come easy. 1 Like |
| Re: Hybrid discussion Thread. by GAZZUZZ(m): 6:17pm On Jun 25, 2019 |
Meanwhile, charging jeje, got about 4hrs of sunlight today.
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| Re: Hybrid discussion Thread. by jceesquare(m): 6:21pm On Jun 25, 2019 |
GAZZUZZ:I believe it should start the engine, but running fine is what I'm not sure. |
| Re: Hybrid discussion Thread. by shobroy10(m): 6:29pm On Jun 25, 2019 |
GAZZUZZ:Boss are u sure we w9nt carry this things go maiduguri 4 Likes |
| Re: Hybrid discussion Thread. by heskeyw(m): 6:39pm On Jun 25, 2019 |
shobroy10:As in eh, na just 3hrs of sunlight, every battery go dey overcharge. Remembered my days in mangu NYSC camp, Plateau State. The sun was too hot that u see people slumping on the ground in the afternoon. No be say we dey exercise ooo, na just person go dey walk for afternoon, next thing na gidigba (he/she dn fall reach ground). 4 Likes |
| Re: Hybrid discussion Thread. by kingreign(m): 6:45pm On Jun 25, 2019 |
heskeyw:What year did you serve in mangy? 2 Likes |
| Re: Hybrid discussion Thread. by heskeyw(m): 7:21pm On Jun 25, 2019 |
kingreign:2015 Batch A. Was posted to Bassa L.G.A after mangu camp. |
| Re: Hybrid discussion Thread. by kingreign(m): 7:23pm On Jun 25, 2019 |
heskeyw: Still a fresher. Nice one. I was in Batch A '14. Was in the terminus market boarding at cab when the twin bomb blast went off. Since then, I redeployed and never looked back. 2 Likes |
| Re: Hybrid discussion Thread. by Nobody: 9:06pm On Jun 25, 2019 |
. 1 Like
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| Re: Hybrid discussion Thread. by heskeyw(m): 9:14pm On Jun 25, 2019 |
kingreign:Wow. God saved you. During my stay in plateau, the number of security men(police, army, frsc, ffs, Civil defense) that are Manning jos (esp that terminus area) every Friday is excess. On Friday eh, if u do anyhow in jos, u go see anyhow. I don't blame you for running away, I remember on Sunday, I was in ecwa church miango, Bassa L.G.A for church service and I was pressing my phone as the service was going on, I read a breaking news that a bomb nearly went off @ ecwa HQ in jos, na so I carry my bible comot. I changed church immediately. 4 Likes |
| Re: Hybrid discussion Thread. by kingreign(m): 9:20pm On Jun 25, 2019 |
heskeyw: The blood drinkers really did a whole lot of damage to Plateau State. I don't know if it will ever be the same cool peaceful lovely Plateau State we knew and read about when we were young. 2 Likes |
| Re: Hybrid discussion Thread. by heskeyw(m): 9:25pm On Jun 25, 2019 |
kingreign:Fulani herdsmen has finally disrupted the peace in plateau. But plateau state will always be my home. I still call my students and friends in plateau and they still call me, most of Facebook friends are from there. I only returned home after service because I couldn't get a job in plateau. If not, I no go step foot for Anambra State again. 5 Likes |
| Re: Hybrid discussion Thread. by AutoMoTech(m): 10:03pm On Jun 25, 2019 |
Thank God for the beautiful reunioun. Shall we resume class now? 5 Likes |
| Re: Hybrid discussion Thread. by jaybanfa(m): 12:02am On Jun 26, 2019 |
kingreign:Eya! Really an unfortunate situation. Wish that incident never happened during your service year. It would have allowed you to enjoy the serene Plateau. Lol all the same Jos is back to normal hopefully. 1 Like |
| Re: Hybrid discussion Thread. by radautoworks: 12:59am On Jun 26, 2019 |
hastane: Of course we do. That's not something we are willing to reach but there are one or two other basic videos about hybrids I can share when Gazzuzz is done. |
| Re: Hybrid discussion Thread. by radautoworks: 3:25am On Jun 26, 2019 |
GAZZUZZ: Can't sell grid chargers... But that won't solve problem. Plus 7.7  1 Like |
| Re: Hybrid discussion Thread. by GAZZUZZ(m): 7:43am On Jun 26, 2019 |
radautoworks: what would you do differently that would be inexpensive? 4 Likes |
| Re: Hybrid discussion Thread. by LeJeun3: 8:02am On Jun 26, 2019 |
obekediamondfuto: No stress really, removing a Toyota exhaust is as easy removing laces.... |
| Re: Hybrid discussion Thread. by LeJeun3: 8:06am On Jun 26, 2019 |
GAZZUZZ: With the way Toyota ECU's are I don't think there would be much problem.....with just starting. |
| Re: Hybrid discussion Thread. by obekediamondfuto(m): 8:11am On Jun 26, 2019 |
LeJeun3: But for aluminium engines, bolt stripping is something else oh... Esp when done in a hurry... |
| Re: Hybrid discussion Thread. by Charley2020: 9:46am On Jun 26, 2019 |
This thread is a waste of time. I can't believe I spent the last 3 hours reading every page only to find out that the project isn't even halfway complete. What a waste. 5 Likes 1 Share |
| Re: Hybrid discussion Thread. by kingreign(m): 10:09am On Jun 26, 2019 |
Charley2020: Learn to be patient and appreciate that someone is trying out something. This thread is a research in progress, the researcher has allocated time and finance to initiate it and I am sure he will complete it. Learn to appreciate the effort. 3 Likes |
| Re: Hybrid discussion Thread. by dannybrasky(m): 10:12am On Jun 26, 2019 |
What would u then say when its finally complete?? 1, Is it your thread? 2, were u forced to view the thread? 3, If you really did surf through the thread in 3 hours like u said,which I doubt,then it shouldn't be hard for you to comprehend that the project is (WORK IN PROGRESS) it hasn't been done b4 by the o.p. 4, You fall into the bandwagon of people who jumps into conclusions. U lack patience. RESULT = (FAILURE) 5, Kindly walk out of here and source for where u would derive your own happiness,No be by force to be on this thread SIR/MA. Charley2020: 2 Likes |
| Re: Hybrid discussion Thread. by Tyche(m): 10:16am On Jun 26, 2019 |
The juice is in the journey not the end result. Charley2020: 3 Likes |
| Re: Hybrid discussion Thread. by GAZZUZZ(m): 10:23am On Jun 26, 2019 |
Charley2020: We know the 2020 family, only the wise will understand. 5 Likes |
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