Adaptive Driving Control Device for Automated Vehicles

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Solution Overview

Problem

Automated driving vehicles can cause discomfort and fear in passengers due to behaviors that differ from those of human-driven vehicles, especially in adverse weather conditions, as they travel according to predetermined conditions rather than adjusting for driver skill or experience.

Innovation Solution

A driving control device that acquires a driving mode corresponding to a designated driver type, allowing the vehicle to perform automated driving based on control methods aligned with the driver's skill level, using sensors and three-dimensional map data to adjust speed and navigation accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If automated driving vehicle travels according to predetermined conditions designated by vehicle designer, then automation and consistency are improved, but driver comfort and acceptance deteriorate due to odd behavior differences from human driving

Engineering Contradiction:

Improveautomated driving controlVSAvoiddriver comfort

Core Design Contradiction:

Extent of automationVSEase of operation

Solution Approach 1:

The patent applies dynamics by making the automated driving control adaptable and changeable based on driver characteristics. The system dynamically adjusts driving behavior by acquiring driver type information and selecting appropriate driving modes from multiple predefined modes, allowing the automation to evolve from rigid predetermined conditions to flexible adaptive control that matches individual driver expectations

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of driving behavior by introducing multiple driving modes with different characteristics. Based on the acquired driver type, the system selects specific parameter sets (acceleration rates, deceleration rates, speed adjustments) that correspond to different driving styles, thereby transforming the fixed predetermined conditions into variable parameters that can be optimized for driver comfort

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If automated driving vehicle uses fixed control conditions, then system simplicity is maintained, but adaptability to different driver preferences and weather conditions deteriorates

Engineering Contradiction:

Improvecontrol system structureVSAvoiddriving mode adaptability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent applies segmentation by dividing the automated driving control into multiple discrete driving modes, each optimized for specific conditions or driver types. This segmentation allows the system to maintain simple individual mode definitions while achieving complex overall adaptability through selective combination and switching between modes based on detected driver characteristics and environmental conditions

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11639183B2Driving control device, driving control method, and computer readable medium

Publication Date: 2023.05.02 MITSUBISHI ELECTRIC CORP

AI summary

A mode acquisition unit (21) accepts designation of a driver type from a driver or a passenger, among driver types provided by driver's driving skill. A mode acquisition unit (21) acquires a driving mode corresponding to a designated type which is a designated driver type. The driving mode indicates a control method of automated driving corresponding to a driving skill. The driving control unit (22) causes a mobile body (100) to perform automated driving in accordance with the control method indicated by the driving mode acquired by the mode acquisition unit (21), thereby realizing automated driving corresponding to the driving skill.