Thursday, June 20, 2019

Predictive Powertrain Control: Clever Cruise Control Helps Save Fuel

A cruise control system that can "see ahead" is about to go live. Predictive Power Control, now available in the new Mercedes-Benz Actros, reduces fuel consumption by an additional three percent. Because the system is familiar with the topography of the road ahead, it is able to respond in a way that will deliver the most fuel-efficient performance. This new driver assistance system really comes into its own when negotiating up- or downhill gradients. As the first GPS-based cruise control system, Predictive Powertrain Control not only intervenes to control speed and braking, but can now also regulate the transmission. The system thus extends use of the fuel-saving EcoRoll function, which is fitted as standard on the Actros, and will furthermore insert a carefully judged single or double downshift of gear at an early stage, where appropriate. A first stage of development saw Daimler Trucks introduce a GPS speed regulator, without gearshift intervention, some three years ago as an option for its Freightliner branded trucks in the USA. When it was launched onto the market in 2009 this system, which was available in overseas markets under the name "Predictive Cruise Control" was the first cruise control system to be so "farsighted".


Combining geodetic data with the ability to pinpoint the vehicle's position through the Global Positioning System (GPS) makes "predictive" driving in cruise control mode possible. The new development from Mercedes-Benz builds on this basis, using its knowledge of the road ahead when driving up or downhill. Predictive Powertrain Control is representative of a new type of technology that brings together the technology that is already in the vehicle with external data from its surroundings. Operating a vehicle with Predictive Powertrain Control is just as easy as you would expect with any Mercedes-Benz truck. In essence, all the driver has to do is to operate the speed regulator. Over and above the parameters that could previously already be set, just one further critical value needs to be defined. Alternatively, the driver can simply rely on the parameters as pre-set at the start of each journey. Over the course of the trip, the most important variables can then be very easily fine-tuned via the menu of the on-board computer.


With these, the front center air inlet also sports a quattro badge. With the carbon styling package, the front splitter and the diffuser are somewhat more boldly shaped. Other options include the exterior mirrors with exposed carbon housings and the all-LED headlights, whose designer trims are tinted for a unique look. The elegant dynamics carry over to the cockpit of the Audi RS 7 Sportback. The dial instruments have black faces, white scales and red needles. A 3D RS 7 logo in the tachometer is a further accent. The key, the flat-bottomed, three-spoke leather steering wheel, the illuminated door entry sills and the displays for the MMI and driver information system also sport RS badges. The driver information system includes a shift light, which indicates when the rev limit is reached. Displays for boost pressure and oil temperature plus a lap timer round out the RS 7-specific menu. Colors and materials provide for further differentiation. The footrest, pedals and soft keys in the standard MMI navigation plus terminal shine in an aluminum-look finish. The decorative trim below the retractable monitor sports a piano finish. Carbon inlays are standard, with four additional materials available as options.


The headlining comes standard in black cloth, with options for lunar silver or black Alcantara. Of course, the Audi RS 7 Sportback can also be personalized using the Audi exclusive program. RS sport seats with pronounced side bolsters, integrated head restraints and RS 7 logos are standard. They are covered in a combination of black Alcantara and leather, and the center sections feature diamond quilting. The seats can also be covered alternatively in high-grade, honeycomb-quilted Valcona leather in either black or lunar silver. Audi offers optional power-adjustable comfort seats with memory function. The two rear seats are powerfully contoured. Luggage capacity ranges from 535 to 1,390 liters (18.89 to 49.09 cu ft) depending on the position of the rear seat backs. The Bluetooth online car phone is an ideal complement to the standard MMI navigation plus. Its UMTS module delivers the tailored Audi connect services to the on-board monitor, and a WLAN hotspot connects the passengers’ mobile devices. Topping the range of audio modules is the Advanced Sound System from Bang & Olufsen. The Audi RS 7 Sportback also leads the pack when it comes to driver assistance systems. One of these is the adaptive cruise control with stop & go function including Audi pre sense front. This keeps the powerful coupe at the proper distance from the car ahead and in many situations can help to avoid accidents or mitigate their consequences. Audi active lane assist helps the driver to keep the RS 7 Sportback on course. The park assist handles the steering when parking. The night vision assistant with highlighting of detected persons reduces the stress of driving in the dark. Audi side assist and the speed limit display round out the list.


Passengers can surf via the WiFi hotspot with download speeds of up to 100 Mbit/s and send and receive e-mail while using a variety of applications. The driver can use the tailored Audi connect services ranging from online traffic information to navigation with Google Earth and Google Street View to online media streaming. The new app provides access to Aupeo! The Q7 also has a new, top-of-the-line element of the Audi connect portfolio: The Audi smartphone interface brings “Apple Car Play” and “Google Android Auto” on board. If an iOS or Android cellular phone is connected to the USB port (iOS from Version 7.1; Android from Version 5.0 Lollipop), the respective environment opens in the Audi smartphone interface. Both are tailored for use in the car. The heart of this feature is online music. In addition, both platforms offer navigation functions, missed call/appointment reminders and messaging functions. Over time, these will be joined by numerous third-party applications such as Pandora, Spotify and WhatsApp.

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