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Volvo Introduce the ReCharge Concept: A plug-in hybrid car |
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Written by CB Team
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Thursday, 06 September 2007 |
Volvo Cars is introducing the Volvo ReCharge Concept, a plug-in hybrid with individual electric wheel motors and batteries that can be recharged via a regular electrical outlet for maximum environmental benefit.
Recharging allows the car to be driven about 100 kilometres on battery power alone before the car's four-cylinder Flexifuel engine is needed to power the car and recharge the battery.
Volvo ReCharge Concept makes its debut in a specially designed Volvo C30 at the Frankfurt Motor Show.
The ReCharge Concept has been developed at the Volvo Monitoring and Concept Center (VMCC), the Volvo Car Corporation's think-tank in Camarillo, California.
When driving on electric power only, operating costs are expected to be about 80 percent lower than that of a comparable petrol-powered car.
When driving beyond the 100 km battery range, fuel consumption may vary from 0 to 5.5 litres per 100 km depending on the distance driven using the engine.
The Volvo ReCharge Concept combines a number of the latest technological innovations into a so-called "series hybrid" where there is no mechanical connection between the engine and the wheels.
- The battery pack integrated into the luggage compartment uses lithium-polymer battery technology.
- The batteries are intended to have a useful life beyond that of the car itself.
- Four electric motors, one at each wheel, provide independent traction power.
- Four-cylinder 1.6-litre Flexifuel engine drives an advanced generator that efficiently powers the wheel motors when the battery is depleted.
In principle, the Volvo ReCharge Concept is a battery electric car with an efficient generator, an Auxiliary Power Unit (APU), that steps in when battery charge becomes insufficient for adequate driving performance.
The APU is designed to distribute electrical power to the individual motors at each wheel. Since the combustion engine only powers the APU, it can operate in an optimal fashion, both for regulated emissions and CO2.
The APU is sufficiently powerful to supply an entire villa with electricity. For example it could with minor modifications in principle give the car owner an electricity generator right at his front door in the event of a power failure.
The combustion engine starts up automatically when 70 percent of the battery power has been used up. However, the driver also has the option of controlling the four-cylinder Flexifuel engine manually via a button in the instrument panel.
The Volvo ReCharge Concept is best suited to car drivers who cover moderate distances every day. For example, a commuter who has less than 100 kilometres (62 miles) to drive between home and workplace can cover the entire round trip on electric power alone and the equivalent daily fuel economy will be zero litres per 100 km.
Even drivers who cover more than the battery-only range will benefit from the ReCharge Concept. For a 150 km (93 mile) drive starting with a full charge, the car will require less than 2.8 litres of fuel, giving the car an effective fuel economy of 1.9 l/100km (124 mpg).
Volvo
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Last Updated ( Thursday, 06 September 2007 )
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