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The new Mercedes-AMG GLE 53
The SUV trendsetter now with even more power and precision
Always staying nicely in line: six-cylinder engine with turbocharging
Its centerpiece is the electrified 3.0-liter engine featuring turbocharging and an electric auxiliary compressor. The 6-cylinder in-line engine generates 429 hp and delivers maximum torque of 384 lb-ft. Its EQ Boost starter generator briefly provides an additional 21 hp of output plus 184 lb-ft of torque and additionally feeds the 48 V on-board electrical system.
The EQ Boost starter-generator combines a starter and generator in a powerful electric motor and is fitted between the engine and transmission. This innovation as well as the intelligent charging via an electric auxiliary compressor and an exhaust gas turbocharger all have the same goal: to enhance the hallmark AMG performance and driving dynamics, but also to reduce fuel consumption and emissions. This move has been a successful one: The GLE 53 accelerates from zero to 60 mph in just 5.2 seconds.
It really turns on the pressure: electric auxiliary compressor
The electric auxiliary compressor builds up a high level of boost pressure without any delays until the big exhaust gas turbocharger kicks in. As a result, the 3.0-liter engine reacts quickly and provides a dynamic response without turbo lag. An additional bonus is the high level of refinement of the six- cylinder in-line engine.
It will be electrifying: 48 V on-board electrical system
The EQ Boost starter-generator can do even more. It also provides the 48 V on- board electrical system with electricity. The conventional 12 V electrical system is also supplied from the new network by means of a DC/DC converter. The 48 V battery increases the overall battery capacity in the vehicle, which supplies more electrical energy. An additional advantage: the same power requires only a quarter of the current when compared to a conventional system. The result is that the wiring can be thinner and therefore lighter, which indirectly contributes to efficiency. The existing 12 V system supplies power to consumers such as lights, cockpit, infotainment displays and control units.
EQ Boost starter-generator
The EQ Boost starter generator is a key component of the 48 V system and not only serves as a generator, but is also responsible for hybrid functions. This allows fuel savings that were previously reserved for high-voltage hybrid technology. For the first time, the EQ Boost starter-generator is also responsible for idle speed control.
The hybrid functions include boost with up to an additional 21 hp of output and 184 lb-ft of torque, energy recovery, shifting of the load point, gliding mode and the virtually imperceptible restarting of the engine with the start/stop function.
Because the belt for ancillary components on the front edge of the engine is omitted, the installation length of the new six-cylinder engine is also significantly reduced when compared with conventional six-cylinder engines. This creates space for an exhaust gas aftertreatment system mounted near the engine, which is particularly efficient. The particulate filter is the only part of the emission control system that is under the floor.
A special acoustic experience comes courtesy of the optional, selectable AMG Performance exhaust system. The variable adjustable exhaust flaps provide the option to change the sound of the vehicle at the touch of a button. Depending on the drive program, the sound characteristics change from unobtrusive comfort to maximum dynamic appeal.
Speedy shifting: AMG SPEEDSHIFT TCT 9G
The AMG SPEEDSHIFT TCT 9-speed automatic transmission ensures dynamic gear shifting with extremely short shift times. It is optimally tuned to the engine and promises agile acceleration typical of AMG as well as speedy shifting – regardless of automatic or manual shift modes, controlled via the steering wheel shift paddles. Upshifts and downshifts are implemented instantly. Especially in the “Sport+” and in manual driving modes, the transmission is very responsive. Multiple downshifts enable quick bursts of speed and make shift operations acoustically more dynamic.
#Mercedes #SUV #GLE
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