Vehicle Speed Profile Validation for Energy Optimization Faults
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Solution Overview
Problem
Existing vehicle propulsion control systems are unable to optimize energy consumption efficiently, leading to errors in determining optimized target vehicle speed profiles due to calculation faults or hardware failures, resulting in incorrect operation.
Innovation Solution
The system determines a target vehicle speed profile based on route characteristics and vehicle parameters, and calculates an alternative profile independently to validate the optimization logic, comparing the two and taking a default action if the difference exceeds a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the system calculates an optimized target vehicle speed profile based on route characteristics and vehicle parameters, then energy consumption is reduced, but calculation faults or hardware failures may cause errors in the optimized speed profile
Solution Approach 1:
The system performs preliminary validation by calculating an alternative speed profile using a different methodology before executing the optimized profile. This advance check prevents erroneous optimized profiles from causing harmful effects, resolving the contradiction between energy optimization and reliability.
Solution Approach 2:
The system implements a feedback mechanism where the alternative speed profile calculation validates the optimized profile. If the alternative calculation confirms the optimized profile is reasonable, the system proceeds; otherwise, it defaults to a safe profile, ensuring reliability while maintaining energy efficiency.
2Reliability
If the system performs validation by calculating an alternative speed profile, then reliability of vehicle control is improved, but computational complexity and processing time increase
Solution Approach 1:
The validation process is segmented into distinct phases: calculating the optimized profile, calculating the alternative profile using a simplified methodology, comparing the two profiles, and executing the appropriate profile. This segmentation manages computational complexity by breaking down the validation task into smaller, more manageable steps.
Solution Approach 2:
The system changes calculation parameters between the optimized profile calculation and the alternative profile calculation. The alternative calculation uses different (simpler) parameters and methodology, reducing computational complexity while still providing valid validation of the optimized profile.
Data Source
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AI summary
A method for providing a vehicle energy optimization rationality check includes identifying at least one route characteristic of a portion of a route being traversed by a vehicle, determining a vehicle energy consumption profile for the vehicle, determining a profile for a target vehicle speed based on the at least one route characteristic and the vehicle energy consumption profile, determining, based on at least the at least one route characteristic, an alternative target vehicle speed, and, in response to a difference between the target vehicle speed and the alternative vehicle speed being greater than a threshold, performing a default action.