Driving Support Controller Lane Change Proposal Suspension

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Automatic lane change systems in self-driving vehicles often require operators to frequently cancel unintended lane changes, leading to a troublesome experience due to repeated prompts for operations they do not agree with.

Innovation Solution

A driving support controller with a lane change opportunity determination module, an operator intention determination module, and a lane change control module that assesses conditions for lane changes, presents proposals to operators, and allows for cancellation based on operator intent, suspending proposals until predetermined conditions are met.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the system frequently presents lane change proposals to the operator, then the system can ensure operator awareness and safety, but the operator burden increases due to repeated cancellation requests

Engineering Contradiction:
Improveoperator awarenessVSAvoidoperator burden
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system monitors operator responses to lane change proposals and uses this feedback to adjust future proposal frequencies. When an operator repeatedly cancels lane change proposals, the system learns from this pattern and suppresses further proposals during similar conditions, reducing unnecessary operator interactions while maintaining safety through selective engagement.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary analysis of operator intentions by monitoring cancellation patterns before presenting new lane change proposals. By detecting when an operator has consistently rejected lane change requests in similar situations, the system proactively suppresses further proposals, preventing the repetition of troublesome cancellation requests while maintaining readiness to act when conditions change.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If the system automatically performs lane changes without operator confirmation, then the productivity and smoothness of lane change operations improve, but the system fails to respect operator intentions and may cause safety issues

Engineering Contradiction:
Improvelane change efficiencyVSAvoidoperator intention alignment
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system serves itself by automatically learning operator preferences and adjusting its lane change proposal behavior without requiring explicit operator programming. Through monitoring cancellation patterns, the system autonomously determines when to suppress proposals and when to present them, creating a self-adapting interaction model that improves efficiency while respecting operator intentions.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses feedback from operator cancellation decisions to automatically adjust its lane change proposal strategy. By continuously monitoring whether operators accept or cancel proposals and analyzing patterns in these decisions, the system refines its behavior to present proposals only when aligned with operator intentions, thereby maintaining both efficiency and reliability.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9682708B2Driving support controller
Publication Date: 2017.06.20 SUBARU CORP
  • US9682708B2 patent drawing
  • US9682708B2 patent drawing
  • US9682708B2 patent drawing

AI summary

A driving support controller determines whether it is an opportunity to change a traveling lane based on a predetermined condition in an self-driving activated state in which an acceleration, a deceleration, and a steering of a vehicle equipped with the driving support controller can be automatically controlled, and performs a control to present a lane change proposal to an operator of the vehicle when a lane change is determined to be possible. The device performs an automatic lane change control in response to an intention of the operator agreeing to the lane change proposal. In this case, when the operator's intention is determined to be in disagreement with the lane change proposal, the control to present the lane change proposal to the operator is suspended until a predetermined cancelling condition is met.