Personalized Adaptive Cruise Control for Real-Time Following Gap Learning

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Solution Overview

Problem

Existing adaptive cruise control (ACC) systems have reduced accuracy and are unsuitable for real-time applications due to their reliance on historical data, failing to consider internal vehicle factors such as driver behavior, passenger types, and feedback, which affects their ability to accurately determine a driver's preferences and intentions.

Innovation Solution

A personalized ACC system that utilizes machine learning models to adjust its operation based on internal vehicle data, such as in-cabin characteristics and external data like weather and traffic conditions, allowing it to learn and adapt to a driver's preferences by capturing and analyzing real-time vehicle dynamics data, including manual interventions, to improve following gap management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If existing ACC systems rely on historical data to determine driver preferences, then they can provide basic cruise control functionality, but their accuracy is reduced and they are unsuitable for real-time applications

Engineering Contradiction:
Improveaccuracy of driver preference determinationVSAvoidreal-time responsiveness
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary data collection and analysis by capturing in-cabin characteristics, weather conditions, and traffic conditions before ACC operation begins. This pre-processing of environmental and contextual data allows the system to establish baseline driver preferences in advance, enabling accurate real-time adjustments without computational delays during actual cruise control operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback loops that monitor driver manual interventions to ACC operations and use this feedback to refine preference determinations. By constantly analyzing the discrepancy between automated ACC decisions and actual driver actions, the system progressively improves accuracy while maintaining real-time responsiveness through iterative learning rather than relying solely on historical data.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If existing ACC systems use preset following distances manually selected by drivers, then the system structure remains simple, but the system cannot adapt to varying driver preferences and conditions

Engineering Contradiction:
Improveadaptability to driver preferencesVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system segments the following distance parameter into multiple adjustable dimensions including base following distance, weather-based adjustments, traffic-based adjustments, and driver preference modifications. This segmentation allows the complex adaptability requirements to be broken down into manageable computational components, each handling a specific aspect of following distance determination without overwhelming system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from static preset following distances to dynamic, continuously adjustable parameters that adapt in real-time based on captured environmental data and learned driver preferences. The following distance becomes a living parameter that evolves with each driving session, automatically adjusting to weather conditions, traffic patterns, and individual driver behavior without requiring manual reconfiguration.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If existing ACC systems do not consider internal vehicle factors such as driver behavior and passenger types, then the system operation remains straightforward, but the system fails to accurately determine driver preferences and intentions

Engineering Contradiction:
Improveaccuracy of driver intention determinationVSAvoiddata collection and processing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system merges multiple data sources including in-cabin sensors, weather services, traffic information systems, and driver behavior monitoring into a unified contextual awareness framework. By combining these diverse data streams and processing them through integrated machine learning models, the system achieves accurate driver intention determination while managing complexity through unified architecture rather than separate independent systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system employs machine learning models that automatically learn and adapt to driver preferences without requiring manual programming or configuration. The system serves itself by continuously training on captured data, automatically refining its understanding of driver intentions and preferences over time, thereby reducing the complexity burden on system designers and operators while improving accuracy.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20240025404A1Software driven user profile personalized adaptive cruise control
Publication Date: 2024.01.25 TOYOTA MOTOR ENG & MFG NORTH AMERICA INC
  • US20240025404A1 patent drawing
  • US20240025404A1 patent drawing
  • US20240025404A1 patent drawing

AI summary

The disclosure generally includes systems and methods of generating a preferred personalized adaptive cruise control (P-ACC) mode of operation. The method includes capturing vehicle data using one or more internal and external vehicle sensors, and adjusting one or more P-ACC mode of operation parameters, based on captured vehicle data, before operation of the P-ACC mode of operation. Vehicle data includes internal vehicle data comprising a type of passenger and number of passengers in the vehicle.