Driver Driving Evaluation Scoring for Energy-Efficient EV Habits

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Solution Overview

Problem

The challenge of achieving both power efficiency and economy in electric vehicle driving is exacerbated by intense driving habits, which reduce the vehicle's driving range, necessitating a method to evaluate and improve driving habits.

Innovation Solution

A method and device for evaluating a driver's driving situation by determining instantaneous and total scores based on factors like acceleration, deceleration, energy recovery, speed, and accessory consumption, using predetermined weights to guide drivers towards economical driving.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If intense driving is performed to achieve fast acceleration and good dynamic performance, then the vehicle's power and acceleration performance is improved, but the energy consumption increases and driving range is reduced

Engineering Contradiction:
Improveacceleration performanceVSAvoidenergy consumption
Core Design Contradiction:
PowerVSUse of energy by moving object

Solution Approach 1:

The system continuously monitors driving behavior through multiple sensors (accelerometer, gyroscope, brake pedal position, throttle position) and provides real-time feedback to the driver via a display interface showing energy consumption, driving score, and behavioral analysis. This feedback loop enables drivers to adjust their driving habits to reduce energy consumption while maintaining acceptable performance.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system evaluates and scores multiple driving parameters including acceleration intensity, braking behavior, speed changes, and gear selection. By quantifying these parameters and providing scores, the system guides drivers to optimize their behavior across multiple dimensions simultaneously, balancing performance and energy efficiency.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If multiple evaluation factors are monitored to comprehensively assess driving behavior, then the evaluation accuracy is improved, but the system complexity increases

Engineering Contradiction:
Improveevaluation accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The evaluation system is divided into multiple independent modules, each responsible for a specific evaluation factor (acceleration, deceleration, energy recovery, speed, accessory consumption). Each module processes its specific parameter independently and contributes to the overall driving score, making the complex evaluation process manageable and maintainable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system uses a unified scoring mechanism that handles multiple different evaluation factors through a common framework. The same basic processing logic (scoring rules, weight calculation, threshold comparison) is applied across all evaluation factors, reducing the need for separate complex processing paths for each factor.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3907677B1Method and apparatus for evaluating driving situation of driver, and machine-readable storage medium
Publication Date: 2026.03.18 GREAT WALL MOTOR CO LTD
  • EP3907677B1 patent drawingFigure 1~2
  • EP3907677B1 patent drawing
  • EP3907677B1 patent drawing

AI summary

The present invention relates to the technical field of vehicles, and provided therein are a method and apparatus for evaluating a driving situation of a driver, and a machine-readable storage medium. The method comprises: acquiring information about at least one evaluation factor; and on the basis of an instantaneous scoring rule corresponding to each evaluation factor among the at least one evaluation factor and the information, determining an instantaneous score corresponding to each evaluation factor; and on the basis of the instantaneous score corresponding to each evaluation factor among the at least one evaluation factor, determining a single score corresponding to each evaluation factor, wherein the single score corresponding to each evaluation factor indicates the evaluation of the driving situation of the driver. The method for evaluating the driving situation of a driver of the present invention achieves the evaluation of the driving situation of the driver.