Driving Assistance System for Power-Intensive Maneuver Safety
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Solution Overview
Problem
Existing driving assistance systems do not provide adequate information on the safety and power availability for power-intensive driving maneuvers in electric vehicles, particularly in varying traffic situations, which can lead to safety risks due to insufficient energy supply.
Innovation Solution
A driving assistance method and system that predicts power-intensive maneuvers by evaluating energy and traffic criteria, determining the peak power profile and available drive power, and displaying the results to ensure safe execution, using sensors and data fusion for surroundings detection and trajectory planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If existing driving assistance systems are used, then basic driving functions are supported, but they do not provide adequate information on power availability and safety for power-intensive maneuvers in electric vehicles
Solution Approach 1:
The system predicts power-intensive driving maneuvers before they occur and determines in advance whether energy and traffic criteria are satisfied. By performing the assessment beforehand, the system provides the driver with information on power availability and safety risks before the maneuver is executed, allowing for preventive action.
Solution Approach 2:
The system continuously monitors energy store status, calculates required peak power profiles, and provides feedback to the driver about whether sufficient drive power is available. This closed-loop feedback mechanism ensures the driver is informed about power availability and can adjust behavior to avoid safety risks.
2Productivity
If power-intensive driving maneuvers are executed without assessment, then driving performance is maintained, but safety risks increase due to insufficient energy supply
Solution Approach 1:
The system performs a preliminary assessment of energy and traffic criteria before the power-intensive maneuver is executed. By determining in advance whether the energy store has sufficient capacity and whether traffic conditions are favorable, the system ensures safety without compromising the ability to execute necessary maneuvers when conditions are appropriate.
Solution Approach 2:
The system dynamically evaluates multiple criteria including energy store status, required peak power profile, and traffic situation. This dynamic assessment allows the system to adapt to changing conditions and provide accurate safety information for each specific maneuver context, maintaining driving performance while ensuring safety.
3Reliability
If comprehensive energy and traffic criteria assessment is implemented, then safety and power availability are ensured, but system complexity increases
Solution Approach 1:
The assessment system is divided into distinct functional modules: energy criterion determination (including peak power profile calculation and available drive power determination) and traffic criterion determination (including traffic situation detection and maneuver executability evaluation). This segmentation allows each module to be developed and validated independently while working together to provide comprehensive safety assessment.
Solution Approach 2:
The system uses a multi-functional assessment framework that evaluates both energy criteria (power availability) and traffic criteria (safety conditions) within a single integrated process. This universal approach allows the same system structure to handle various types of power-intensive maneuvers under different conditions without requiring separate specialized systems for each scenario.
Data Source
AI summary
A driving assistance method for assisting a power-intensive driving maneuver of a subject vehicle includes predicting the power-intensive driving maneuver of the subject vehicle, and determining whether driving maneuver criteria, which comprise at least one energy criterion and at least one traffic criterion, are satisfied for the predicted power-intensive driving maneuver. Determining if the at least one energy criterion is satisfied includes determining a peak power profile required for a full execution of the predicted power-intensive driving maneuver, determining an available drive power of the subject vehicle, and evaluating whether the available drive power is sufficient for the peak power profile, wherein the at least one energy criterion is satisfied if the available drive power is sufficient for the peak power profile. Determining if the at least one traffic criterion is satisfied includes detecting a traffic situation, which comprises at least one traffic condition and/or a route topology, in the surroundings of the subject vehicle, and evaluating whether the predicted power-intensive driving maneuver can be fully executed in the detected traffic situation, wherein the traffic criterion is satisfied if the predicted driving maneuver can be fully executed in detected traffic situation. The method further includes displaying a result of determining whether the driving maneuver criteria are satisfied for the predicted power-intensive driving maneuver.