Driver Behavior Assessment Using Brake Cause Analysis
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Solution Overview
Problem
Current driver behavior assessment systems do not effectively optimize fuel consumption during braking processes without compromising traffic safety, as they fail to differentiate between appropriate uses of auxiliary, service, and engine brakes, leading to inefficient fuel use even when safe driving practices are followed.
Innovation Solution
A method and system that continuously characterize and assess driver braking processes by determining the cause of each braking event, using camera means, map data, and vehicle location determination, to identify the appropriate brake type and extent used, and inform the driver, thereby optimizing fuel consumption while maintaining safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If auxiliary brakes are used extensively to minimize wear, then brake wear is reduced, but fuel consumption increases unnecessarily
Solution Approach 1:
The system changes the assessment parameters from simple brake wear reduction to a multi-dimensional evaluation that includes brake type selection, cause of braking, and fuel consumption efficiency. This allows the system to recognize when engine brakes should be used instead of auxiliary brakes to optimize both wear reduction and fuel efficiency.
Solution Approach 2:
The system provides feedback to drivers about their braking behavior by analyzing the cause of braking events and comparing the actual brake usage with the optimal brake selection. This feedback mechanism enables drivers to learn and improve their braking habits to achieve both low wear and low fuel consumption.
2Loss of substance
If driver behavior is assessed based on brake wear reduction, then brake wear is minimized, but accurate assessment of driver intentions and fuel efficiency is compromised
Solution Approach 1:
The assessment system is segmented into multiple independent evaluation modules: brake wear assessment, fuel consumption assessment, cause analysis, and driver intention recognition. Each module independently evaluates specific aspects of braking behavior, and their results are integrated to provide a comprehensive and accurate overall assessment.
Solution Approach 2:
The assessment system performs multiple functions simultaneously: it evaluates brake wear, measures fuel consumption, analyzes the cause of braking, and assesses driver intentions. This multi-functional approach allows a single system to provide comprehensive driver behavior assessment without requiring separate specialized systems for each function.
3Measurement precision
If the assessment system monitors multiple braking parameters and causes, then assessment accuracy improves, but system complexity increases
Solution Approach 1:
The system uses the vehicle's existing sensors and data systems to provide the information needed for comprehensive braking assessment. Rather than adding dedicated complex hardware for each measurement, the system leverages available data from engine management systems, brake control units, and vehicle sensors to perform multi-parameter analysis.
Data Source
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AI summary
The invention relates to a method for assessment of driver behaviour during driving of vehicles, comprising the step of continuously characterising (S1 ) the driver's chosen braking processes as a basis for said assessment, further comprising the steps of determining (S2) the cause of a chosen braking process and assessing (S3) whether the chosen braking process is the appropriate response to said cause. The present invention also relates to a system for assessment of driver behaviour during driving of vehicles. The present invention relates also to a motor vehicle. The present invention relates also to a computer programme and a computer programme product.