Ecological Route Attribute Determination for Energy-Efficient Navigation
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Solution Overview
Problem
Current navigation systems cannot accurately determine energy consumption for road segments using geodata due to variability across vehicle types, making it difficult to calculate energy-efficient routes.
Innovation Solution
A method to determine momentary energy consumption values by vehicles, create ecological position attributes combining location and energy data, and transmit these to a central processor to calculate ecological route attributes, which describe energy consumption on road segments, allowing for energy-efficient route calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If energy consumption is assigned to road segments as a cost element, then energy-efficient route calculation is enabled, but it is difficult to determine the energy required using geodata and centralized approach
Solution Approach 1:
The system segments the energy consumption measurement task by having individual vehicles independently measure their own energy consumption on specific road segments, rather than requiring a centralized system to calculate energy consumption for entire routes. Each vehicle acts as an independent measurement unit that contributes data for its traveled segments.
Solution Approach 2:
Vehicles autonomously determine and report their own energy consumption values without requiring external measurement infrastructure. The on-board computer in each vehicle self-measures energy consumption, stores it with position data, and transmits it to the central server, enabling self-service energy consumption measurement.
2Reliability
If energy consumption data is collected from multiple vehicles, then statistical reliability is improved, but data aggregation and processing complexity increases
Solution Approach 1:
The system uses position data (geodata) as a common reference framework that all vehicles share. By copying and matching position information from different vehicles' reports against the same road segment definitions, the system can aggregate energy consumption data without requiring complex vehicle-specific processing, simplifying the aggregation process while maintaining statistical reliability.
3Measurement precision
If momentary energy consumption values are determined continuously, then measurement precision is improved, but data transmission volume and processing load increase
Solution Approach 1:
The on-board computer in each vehicle preliminarily processes and stores energy consumption data together with position information before transmission. By preparing the data in advance and organizing it by road segment identifiers, the system reduces the complexity and volume of data that needs to be transmitted to the central server, while maintaining precise momentary measurement values.
Data Source
AI summary
A method is provided for determining an ecological route attribute, in which at least one current energy consumption value is determined by a motor vehicle. A current measurement location is determined by the motor vehicle. An ecological location attribute, which includes the measurement location and the current energy consumption value, is formed by the motor vehicle and transmitted to a central processor. An ecological route attribute is determined by the central processor on the basis of a plurality of received ecological location attributes, which in each case includes a measurement location, which ecological route attribute describes an energy consumption on a route section which has a prescribed spatial relationship with the measurement locations.