Hybrid Vehicle Route Segmentation for Power Prediction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for determining the operating strategy of hybrid vehicles lose essential information during calculations, leading to inferior predictions and flawed optimization results due to the use of average power values and imprecise speed profiles.
Innovation Solution
The method subdivides the route into segments based on performance profiles, comparing adjacent sections for similarity in power distribution, allowing for the retention of essential information and reducing computational intensity while determining a total operating strategy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If average power values are used for route calculations, then computational complexity is reduced, but information accuracy deteriorates leading to inferior predictions
Solution Approach 1:
The patent divides the route into multiple sections and calculates power requirements for each section individually rather than using a single average value for the entire route. This segmentation preserves local variations in power requirements while remaining computationally manageable, thus resolving the contradiction between computational simplicity and prediction accuracy.
2Measurement precision
If detailed performance profiles are maintained for all route sections, then information accuracy is improved, but computational intensity increases
Solution Approach 1:
The patent combines adjacent route sections that have similar power distribution characteristics into larger segments. This merging reduces the total number of calculations required while preserving the essential performance information, thus resolving the contradiction between maintaining detailed accuracy and reducing computational energy consumption.
3Measurement precision
If route is divided into many small sections, then performance information precision is improved, but device complexity increases
Solution Approach 1:
The patent implements a dynamic segmentation strategy where the number and size of route sections are adjusted based on the specific characteristics of each route. Rather than using a fixed fine-grained division for all routes, the system adapts the level of segmentation to match the actual performance variations present, reducing unnecessary complexity while maintaining precision where needed.
Data Source
AI summary
A method for operating a motor vehicle. To determine a total operating strategy, predictive basic data describing the operation of the motor vehicle for a known route is determined from input data comprising route data. The operating strategies of the motor vehicle are evaluated based on the predictive basic data in order to determine the total operating strategy. The motor vehicle is then operated according to the total operating strategy. To determine the basic data, a performance profile is determined based on the total required performance of the vehicle throughout the route. The route is divided into route sections, each assigned characterizing performance information. Successive route sections are combined into a common segment when at least one similarity criterion is satisfied comparing the performance information of the route sections. Thereafter, the segments are provided with this assigned total performance information associated with the total performance information.