Vehicle Control Device Overtaking Proposal Timing

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Solution Overview

Problem

The challenge lies in synchronizing the timing of automatic overtaking proposals in vehicle control systems with a driver's intention to overtake, as drivers may initiate manual overtaking before the system's proposal, leading to unnecessary manual operations.

Innovation Solution

A vehicle control device that includes a preceding vehicle recognition unit, surrounding environment recognition unit, display control unit, automatic overtaking proposal unit, approval determination unit, and vehicle control unit, which displays an overtaking proposal activation image and preceding vehicle image on a display screen or windshield, proposing automatic overtaking when the images converge, allowing the driver to easily understand the proposal timing and approve or reject it.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If automatic overtaking proposal timing is determined by vehicle control system, then automation level is improved, but timing synchronization with driver intention deteriorates

Engineering Contradiction:
Improveautomatic overtaking proposalVSAvoiddriver intention timing
Core Design Contradiction:
Extent of automationVSLoss of information

Solution Approach 1:

The system displays an overtaking proposal activation image on the display unit that provides visual feedback to the driver about when the automatic overtaking proposal will be made. This feedback mechanism allows the driver to understand the system's decision timing and synchronize their intention with the automation, reducing information loss between driver intent and system action.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary action by displaying the activation image before making the actual overtaking proposal. This preliminary visual indication prepares the driver for the upcoming automated decision, allowing them to align their intention with the system's timing and avoid initiating manual overtaking prematurely.

Inventive Principle:
Principle #10Preliminary action

2Loss of information

If overtaking proposal activation image is displayed, then driver awareness of proposal timing is improved, but device complexity is worsened

Engineering Contradiction:
Improveproposal timing informationVSAvoiddisplay control system
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The system creates a simplified visual copy (activation image) of the overtaking proposal timing information on the display unit. This copy conveys the essential timing information to the driver without requiring complex system changes, as the image is a graphical representation that can be generated and displayed using standard display control capabilities.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS11299162B2Vehicle control device
Publication Date: 2022.04.12 TOYOTA JIDOSHA KK
  • US11299162B2 patent drawing
  • US11299162B2 patent drawing
  • US11299162B2 patent drawing

AI summary

A vehicle control device includes a display control unit configured to display a preceding vehicle image corresponding to a preceding vehicle and an overtaking proposal activation image based on a relative situation of the preceding vehicle with respect to the host vehicle and a surrounding environment of the host vehicle and configured to control display such that the overtaking proposal activation image and the preceding vehicle image approach each other in response to approaching of the host vehicle and the preceding vehicle, an automatic overtaking proposal unit configured to propose the automatic overtaking to a driver when the overtaking proposal activation image reaches the preceding vehicle image on the display screen, and a vehicle control unit configured to execute the automatic overtaking of the preceding vehicle by the host vehicle when the approval determination unit determines that the driver has approved the automatic overtaking.