2011 Kia Optima Hybrid

Kia reuses the 2.4-liter engine block from the standard Optima in its hybrid, but makes a few changes to the head. Gone is the direct-injection system; it's been replaced with a more traditional port-injection setup and a change to the Atkinson combustion cycle. We, at first, scoffed at this perceived aspirational downgrade, but Kia's engineers tell us that when combined with the electric motor, the Atkinson ... Expand full review

Kia reuses the 2.4-liter engine block from the standard Optima in its hybrid, but makes a few changes to the head. Gone is the direct-injection system; it's been replaced with a more traditional port-injection setup and a change to the Atkinson combustion cycle. We, at first, scoffed at this perceived aspirational downgrade, but Kia's engineers tell us that when combined with the electric motor, the Atkinson cycle proved to be as efficient as the direct-injection setup, and was also less expensive for the consumer--and Kia's all about making things less expensive.

Working in tandem with the gasoline engine is Kia's hybrid electrification system, a doughnut-shaped electric motor and generator that sits between the engine and the six-speed automatic transmission. The engine, motor, and gearbox are all connected with a wet clutch, which ideally is more efficient than the more common automatic transmission torque converter.

The motor is able to accelerate the vehicle from a stop under pure electric energy--and usually does so up to about 18 mph to 20 mph. Once up to speed, the motor can also provide electric assist, boosting the power of the gasoline engine, or allow the vehicle to cruise for periods in EV mode. We were surprised to look down at the instrument cluster and see the Optima occasionally illuminate the EV mode light at upward of 70 mph (on a slight downgrade, of course) despite the fact that Kia's materials state an EV cap of 62 mph.

Of course, when it's not motivating the vehicle, the motor can also act as a generator, sending power back to the battery pack through regenerative braking. There was an obvious difference between the regenerative braking and when the conventional brakes activated, which led to some pretty inconsistent stopping distances during our testing. At low speeds, such as during parallel parking, the brakes were grabby and difficult to modulate. At higher speeds--for example, while rolling to a stop at a traffic light--the brakes didn't shave off speed as quickly as we felt they should, leading to a few hair-raising close calls. Stabbing the brakes for an emergency stop always produced immediate and sharp deceleration, so perhaps the regen blend just takes more getting used to.

Usb Mp3 Player - News


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Brando's Bombshell MP3 player gives the TSA something new to balk at

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2011 Kia Optima Hybrid
2011 Kia Optima Hybrid

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Usb Mp3 Player - Bookshelf

PC Basics with Windows 7 and Office 2010

PC Basics with Windows 7 and Office 2010

Today's MP3 players include the same type of flash memory used in USB flash drives and can store thousands of songs. FIGURE1-21 shows an MP3 player. ...

Introduction to Computers and Application Software

Introduction to Computers and Application Software

Today's MP3 players include the same type of flash memory used in USB flash drives and can store thousands of songs. FIGURE1-21 shows an MP3 player. ...

Hardware bible

Hardware bible

The MP3 player therefore needs less power for a given playing time. At heart, a portable MP3 player is little more than a USB speaker with memory. ...

Leo Laporte's PC help desk

Leo Laporte's PC help desk

Generally, AutoPlay will automatically start when you plug your MP3 player into a USB or FireWire port and turn it on. Note that some MP3 players turn on ...

Computing for Seniors QuickSteps

Computing for Seniors QuickSteps

Insert the USB plug on the MP3 player into an available USB port on ... Flash USB MP3 players come in different capacities; a 4GB model, for example, ...

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