Reduction of Fuel Consumption with Intelligent Use of Navigation Data

Paper #:
  • 2010-01-2004

Published:
  • 2010-10-05
Citation:
Varnhagen, R. and Korthaus, C., "Reduction of Fuel Consumption with Intelligent Use of Navigation Data," SAE Technical Paper 2010-01-2004, 2010, https://doi.org/10.4271/2010-01-2004.
Pages:
4
Abstract:
A concept presented in this talk describes a preview of the digital map which can be used by other vehicle systems. The eHorizon Box (for electronic horizon) constantly sends small data packages via the vehicles data network (CAN bus). These packages contain information about the stretch of road ahead as well as topographic information. With this information, the engine control unit, the transmission control device or the driver assistance systems can optimize their respective functions. When eHorizon is used in commercial vehicles and passenger cars, Continental expects a reduction in fuel consumption, greater traffic safety and enhanced ride comfort.The eHorizon has numerous possible applications. Current engine management functions primarily use the available sensor data of the vehicle and for sure the individual driver impact. Based upon eHorizon's digital map data, the stretch of road ahead and its topography can be integrated in the strategy of the engine management. Here, Continental feels it is possible to reduce fuel consumption in various driving situations. A vehicle's electric energy management can also be improved with eHorizon. From a Continental perspective, it will be possible to switch certain functions on or off, depending on the road up ahead. The shifting strategy can also be optimized using eHorizon data. The automatic transmission then recognizes a curve or incline directly ahead and, accordingly, waits to shift into a higher gear.
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