Automotive Design
can provide additional thrust through its ‘boosting’ effect. Intelligent management of the separator clutch makes for an inconspicuous transition among the hybrid-specific driving modes, and one which is said to be comfortable and quick for the driver. At the same time, the petrol engine may be switched off at speeds of up to 156km/h (97mph), being fully disengaged from the drive train when no further power is required. In this ‘sailing mode’ the drag forces exerted by the petrol engine are eliminated to improve fuel consumption. With a long history in motorsport, it is not surprising
that Porsche also used the Geneva Motor Show to display its innovative 911 GT3 R Hybrid. This car’s rear-mounted 480 HP petrol engine is supplemented by two 60 kW electric motors powering the front axle. Under braking, the 911 GT3 R Hybrid converts kinetic energy into electrical energy and stores it in a flywheel such that it may be released at the driver’s command to boost acceleration. Not long after the Geneva show, the 911 GT3 R Hybrid
was entered in the NŸrburgring 24 Hours race (Fig. 4). Unfortunately the car had to retire after 22 hours and 15 minutes due to a problem with its conventional petrol engine. Also shown at Geneva was the Lotus Evora 414E Hybrid
concept car, a high-performance technology demonstrator with a plug-in series hybrid drive system. This car’s range- extended electric drive consists of two electric motors driving each of the rear wheels independently via a single-speed geartrain that is integrated within a common transmission housing, enabling torque vectoring for stability control of the vehicle. The motors each provide 152kW (204HP) of power and 400Nm of torque. Electrical energy is stored in a lithium
Fig. 4. Porsche’s 911 GT3 R Hybrid performed well in the NŸrburgring 24 Hours race until it retired after 22 hours and 15 minutes due to engine failure.
polymer battery mounted in the centre of the vehicle. Interestingly, the Evora 414E Hybrid also showcases a
new technology from Lotus Engineering, namely a sports mode that simulates a seven-speed, paddle-shift transmission that combines driver involvement for a hybrid sports car and optimised energy recuperation. For everyday commuting journeys, up to 35 miles can be travelled using battery power, with the battery being recharged overnight using a conventional domestic mains supply. l
relaxation loves movement Colors move us. When used in the right place and at the right time, they can create,
control or magnify emotions. That’s why our designers study global color trends in order to develop perfectly coordinated color collections for cars. When the coating infl uences your choice of car, it’s because at BASF, we create chemistry.
www.basf-coatings.de
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