Vehicle Driving Mode Switching for Combination Switch Abnormalities

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Solution Overview

Problem

Existing vehicle control technologies fail to appropriately control vehicles when abnormalities occur in lighting and switching systems, leading to potential safety and operational issues.

Innovation Solution

A vehicle control device that includes a recognizer, a driving controller, and a mode determinator, which recognizes surrounding circumstances and switches between driving modes to minimize driver tasks during normal operation, automatically switching to a more driver-dependent mode when abnormalities are detected in the combination switch or related equipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the vehicle operates in the second driving mode with automated control, then driver tasks are reduced and automation level is improved, but the system becomes more vulnerable to communication abnormalities with the combination switch

Engineering Contradiction:
Improveautomated driving controlVSAvoidsystem reliability during abnormality
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The system dynamically switches between the first driving mode (manual control) and the second driving mode (automated control) based on the operational status of the combination switch and communication line. When communication is normal, the system operates in automated mode; when communication abnormalities are detected, it transitions to manual mode, making the control system adaptable to changing conditions rather than fixed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system continuously monitors communication status between the driving controller and combination switch, using this feedback to determine whether to maintain automated control or switch to manual control. The mode determinator receives communication status information and adjusts the driving mode accordingly, creating a closed-loop control system that responds to real-time conditions

Inventive Principle:
Principle #23Feedback

2Reliability

If the system continuously monitors for communication abnormalities, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improvedetection of communication abnormalityVSAvoidmonitoring system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The driving controller performs multiple functions: it controls driving operations, monitors communication status with the combination switch, determines appropriate driving modes, and manages mode transitions. By making the driving controller multi-functional rather than adding separate dedicated monitoring hardware, the system achieves reliable abnormality detection without proportionally increasing device complexity

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

Solution Approach 2:

The system uses its own existing communication infrastructure and processing capabilities to monitor for abnormalities. The driving controller leverages its built-in communication functions to detect issues with the combination switch communication, rather than requiring entirely separate monitoring subsystems

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11919547B1Vehicle control device, vehicle system, vehicle control method, and program
Publication Date: 2024.03.05 HONDA MOTOR CO LTD
  • US11919547B1 patent drawing
  • US11919547B1 patent drawing
  • US11919547B1 patent drawing

AI summary

A vehicle control device includes a driving controller controls one of or both steering and acceleration/deceleration of the vehicle, and a mode determinator determines any of a plurality of driving modes including a first driving mode and a second driving mode as a driving mode of the vehicle, in which tasks imposed on a driver in the second driving mode are less significant than in the first driving mode and one of or both steering and acceleration/deceleration of the vehicle are controlled by the driving controller, the driving controller controls the vehicle in the second driving mode, and the driving mode is changed to the first driving mode when an abnormality occurs in a combination switch, combination switch related equipment which is connected between the driving controller and the combination switch via a communication line, or communication which is performed by the combination switch and the driving controller.