How the Honda Accord's innovative hybrid system works

 





Most of the attention Honda Accord Hybrid comes from the 50 mpg EPA rating for Al Ain city and appeared minus $ 30,000 starting price. But those with an eye for architecture will see a creative combination of new technology with elements of the Chevrolet Volt, Toyota Prius and Ford Fusion Hybrid.
"Honda general situation we had," said Koji Ninomiya, chief engineer for hybrid agreement, through an interpreter. "We did our best, and ended at 50 mpg."
The car, which gets agents in late October, uses three modes campaign to eliminate the figure of 50 mpg - something no other medium-sized cars, including diesel Euro, can match.
He said Ninomiya was 50 mpg or any particular number is not a goal when Honda engineers began nearly ten years studying the generation of new hybrid force to replace the current design.
"We considered everything, [including] leads the resistance and regenerative braking. We made Powertrain all-new, and it was the biggest purpose of this to target the most efficient system in the world. We also tried to improve efficiency, we decided two said the engines will be better."
Here's how the work of the two electric motors in the hybrid Accord three driving modes, EV, and hybrid engine.
• EV mode: the car payment is only by an electric motor powered by a lithium ion battery. And a top speed of about 60 miles per hour, but a very limited range, only a few miles away. Once the battery is depleted, the car automatically to hybrid mode.
• hybrid mode: The hybrid agreement works a lot like the Chevrolet Volt. Power 2.0-liter gasoline engine generator to generate electricity for the electric motor. Honda calls the engine generator, and thus two engines. Only the electric motor, fed by the generator, the car moves in hybrid mode.
• Engine status: separate electric motor and gasoline Accord Atkinson cycle engine directly drives the wheels through a single gear transmission. In this gear highway - similar in efficiency to sixth gear on the manual transmission - gasoline engine works in the sweet spot, and provide all of the strong acceleration when needed, and the economy in high fuel consumption.
Ford and Toyota hybrids also use Atkinson cycle engines. Atkinson cycle 2.0-liter gasoline engine Accord is the first of its kind for Honda.
In Atkinson cycle engine, the intake valves are still briefly open during the compression stroke. That pushes some air in the cylinders in the intake manifold, which reduces the compression ratio. It enables quick, smooth starts, which is ideal for hybrids. The downside is that it reduces the power.
To resolve this problem, install the engineers Honda VTEC, a system that electronically controls the valve timing with camshafts that have two sets of lobes. One set of lobes are the Atkinson cycle. The other is the normal combustion. Engine computer switch back and forth between the two sets of lobes, on the basis of the engine speed and load.
And it includes other new technologies and innovative regenerative brake the car, which sends electricity to the battery. Renewal begins the moment the driver's foot leaves the accelerator, not when you press the brake pedal as is the case in other hybrid cars.
Pack of lithium-ion battery air cooling in a compact case fits between the back seat and trunk. Package does reduce trunk space. Hybrid trunk is 12.7 cubic feet, while the trunk is normal 15.8 accord.
Honda will offer three versions of the hybrid agreement. The base model starts at $ 29.155. The mid-level E-XL version at $ 31.905 ,. And touring loaded at $ 34.905. Comprehensive freight rates. No announcement of the numbers.
Honda Accord hybrid assembly plant in Marysville him; and this is the first time based on the hybrid agreement in North America where.
Powertrain innovative car can help restore some of the former Honda fans who fled from brand to other brands with more advanced engines and transmissions.
In the past, Honda was stuck with nickel-metal hydride batteries in hybrid developed while other cars motor industry companies that run on gasoline more efficient by using lighter and electricity, and batteries are the most powerful Li-ion.
And cars that run on gasoline, the company has been slow to switch to automatic transmission with more than four speeds.
As a result of this strategy: in the middle of the pack-classifications fuel economy and a series of misfires dating back almost ten years, including the 2004-06 hybrid agreement failure, slow hybrid selling Civic miserable and sales Insight and CR- Z hybrids.
"A very strong statement," said California dealer Dave Conant Accord Hybrid 50 mpg is. He is CEO of C.A.R. Group, which owns 13 stores, including four Honda outlets.
"Honda's long-term kind of owns the land," he said. "I think the Accord 50 mpg will swing at all people to think of Honda as the leader of fuel economy. It's long overdue, frankly."

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