Lots of driving pleasure in the new SMART Car

22 Янв 2015 | Author: | No comments yet »
car Smart Crosstown

Lots of driving pleasure, with extremely low fuel

Stuttgart, Nov 15, 2005 The smart car crosstown, presented at the IAA 2005, to show once again smart has the potential to offer drives not just today, but in the as well. And it shows that it is to have the best of both low fuel consumption and a high of driving pleasure.

The smart show car thus highlights the brand#146;s commitment to the environment. The innovative concept is unique for a car of class, yet it is the logical response to a demand among consumers: is absolutely standard among cars in the USA is increasingly becoming in Europe, too.

The smart show car: electrically for greater economy and dynamism

to its combination of an electric motor an output of up to 23 kW) with the 45 kW/61 bhp engine from the smart the smart crosstown consumes less fuel again despite weighing 85 kilograms Even when compared the extremely economical standard it allows a reduction in fuel of some 15 percent (4.7 of petrol per 100 kilometres) in the new European cycle (NEDC). Like the fortwo, the vehicle#146;s maximum is electronically limited to 135 km/h.

The smart crosstown furthermore even more ride and approximately ten percent better (the production car requires seconds to accelerate from 0 to 100 At a red light, for example, the combustion is automatically shut off with the function. Yet starting up again at a notice is not a problem: while the engine is starting and building up the electric motor takes the job of driving the vehicle. And that’s not the electric motor also over when the tractive is interrupted during gear

Automatic start-stop system to save fuel

The idle of the combustion engine offer a saving potential of between and six percent. Therefore it stands to to switch the engine off when the car is not in overrun and when driving A disadvantage of this method in drive concepts has proved to be the pauses which occur the engine is restarted. Even the latest technological developments it around a second for a combustion to get running and build up sufficient torque.

The smart crosstown, on the other immediately converts pressure to the pedal into adequate Its electric motor supplies through the rear-wheel drive, and it can power of up to 23 kilowatts for a short By this time the combustion has started up, and can gradually take the drive from its electric At most, the driver perceives the from one drive unit to the acoustically.

Electric drive shifting breaks

The vehicle#146;s automated transmission gives the a great deal of added To change forward gears in the mechanism the gearshift lever needs to be moved forwards or The clutch is also opened and electrically. This means the smart crosstown #150; like the smart fortwo does not need a clutch

A central electronic control manages the shifting and clutch Instead of a conventional automatic and torque converter, the smart works with a manual mechanism including friction-disc The advantages of this compared a fully automatic transmission lie in the higher efficiency, lower more compact dimensions and production costs.

However, unlike an automatic this principle causes interruptions between opening and the clutch for gear shifting. In the crosstown these are bridged by the motor. For a few tenths of a second it the propulsion power needed, harmonious, steady acceleration the whole gear spectrum. So the crosstown is not only more it also offers added comfort.

Brake power is to electrical energy

car Smart Crosstown

The partial of braking energy makes a contribution to energy savings. braking, the electric motor of the crosstown is operated as a generator. enables dynamic energy to be to electrical energy and stored in the battery #150; to be used for acceleration.

The higher the braking that the axle drive into the generator, the higher the current for the battery. The generator is roughly in proportion to the pedal The hydraulic brake system not intervene and slow down the car more until the braking demanded by the driver exceeds of the generator. The hydraulic brake takes over the whole when the battery is fully This process of recuperating energy enables a fuel of around five to six percent to be

To achieve this result, the unit causes the engine to be off and the clutch to be opened when the pedal position is zero. strategy is pursued up to a driving of 70 km/h. At speeds above the electronics merely open the when the engine is idling. of its operating principle, the electric delivers less drive at higher speeds. This is why the engine has to be ready for operation in to be able to spontaneously comply the driver#146;s request for acceleration.

operating conditions

The cooperation of the motor and the combustion engine presents an opportunity to operate the drive units at optimum The electric motor thus the car on its own at low speeds, for example in traffic-calmed The battery must be sufficiently for this. The combustion engine a certain amount of power is not required by the driver in the range of specific consumption in order to the battery. This operating permits a fuel saving of up to percent.

High operational reliability the parallel use of both driving Unlike a serial concept, the electric drive motor is fed by the engine, the petrol engine of the crosstown is able to drive the even when the battery is In this special case all of its correspond to those of the smart with a petrol engine. is no regenerative braking through the in such a situation, but the engine#146;s torque (#147;engine braking is ready to decelerate.

Hybrid has everything under control

The way that the close cooperation the combustion engine and the electric manifests itself to the smart driver is in the improved comfort and running costs. The drive is determined by the system itself depending on the situation #150; in to ensure the best possible For this, the driver#146;s wishes, are interpreted via the accelerator pedal, lever or brake pedal, are as important as the engine speed, speed and driving dynamics, the condition and topography, and the charge and temperature of the electrical system.

car Smart Crosstown
car Smart Crosstown
car Smart Crosstown
car Smart Crosstown
car Smart Crosstown

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