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Cadillac ELR: the energy control is in the hands of the driver

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The charging system on request cutter luxury redefines the role of shift paddles

Pallets shift take on a whole new meaning to the edge of the model Cadillac ELR, the first electric vehicle with extended range of the brand, which will be available early in 2014.

Unlike the shift paddles on the steering wheel montees speeds of vehicles classic performance, which allow drivers to control the gradation and the demotion of the gearbox, those of the Cadillac ELR allow a driver to regenerate his energy temporarily in form of electricity and stored in the battery pack for later use.

Charging function requested by the ELR, which takes advantage of the high performance Cadillac heritage is unique to this section of compact luxury.

"Charging on Demand enables the driver of the ELR to recover energy when slowing down, was approaching slower traffic, for example, or turn pronounce says Chris Thomason, chief engineer the ELR. The driver can take a more active role in terms of the experience of driving an electric vehicle. "

To engage the charging system on request, the driver has to do is release the accelerator pedal and pull on either the steering wheel paddles (left or right) to start regenerate the electricity . When committed, the system produces a refill on request deceleration of the vehicle higher than that experienced in a traditional vehicle when the accelerator pedal is released and provides characteristics of mastery and performance dynamics similar to those that occur during downshifts on a vehicle with manual transmission. The function does not stop the vehicle.

Loosening of the pallet disengages the system charging on request and allows the vehicle to continue its momentum normally coasting. The driver can engage and disengage the system of charging on demand as they see fit and as far as traffic conditions allow.

"While pulling on one of the pallets to idle the vehicle, the driver of the ELR keeps the foot very close to the accelerator, near a pick up speed, adds Mr. Thomason. The driver saw a experience of more active and more satisfying driving, not to mention the clever advantage of the recovery of energy. "

During the recovery of braking energy, the system converts the pulse of the vehicle in electric power and stores it in the battery pack in T, which is located along the center line of the vehicle between the front wheels and back, for an optimal load distribution.

The block provides energy to a system of electric drive perfected capable of producing 400 Nm (295 lb-ft) of torque to propel the instant vehicle. Using only the energy stored in the battery, the ELR can travel a distance estimated about 56 km (35 miles) in fully electric mode, depending on terrain, driving techniques and temperature.

The ELR integrated braking system a recovery that covers most of the energy that comes from the pulse of the vehicle rather than letting it escape as heat through the brakes, common occurrence in vehicles traditional. Energy is recovered applying the brakes while the vehicle slows down. If a larger braking force is applied, due to an emergency, for example, then the ELR committed brakes friction for increased power stop.

The system includes anti-lock brakes four circuits as well as electronic brake force distribution that uses the independent regulator for rear braking stability and cornering, as well as more efficient use of the rear brakes when the vehicle is under greater supported. In addition, the system of disc brakes is provided with ventilated discs at the front and solid discs DuraLife at the back, with technology nitrocarburising to reduce corrosion and increase the life span.

The battery can be recharged RLE using a 120V electrical outlet or a dedicated charging station 240 V. The vehicle can be fully recharged in about 4.5 hours with a power 240 V, depending on the outside temperature.

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