Vehicle Seat Temperature Profiles for Hands-Free Comfort Control

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Solution Overview

Problem

The increasing number of vehicle functions can distract drivers, leading to hazardous situations due to the need for them to manage multiple systems simultaneously, including climate control, which can divert attention from driving and increase stress.

Innovation Solution

A method for automatically controlling the temperature of vehicle compartment components using power profiles adapted to user needs, learned through machine learning algorithms, allowing the system to adjust temperatures without driver intervention, focusing on driving by reducing the need for micro-adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the driver manually controls the climate system temperature adjustments, then the user can customize the temperature to their preferences, but the driver's attention is diverted from driving and stress increases

Engineering Contradiction:
ImproveTemperature control customizationVSAvoidDriver distraction and stress
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The climate system automatically adjusts temperature based on detected user presence and pre-stored power profiles without requiring driver input. The system serves itself by autonomously selecting and executing appropriate heating or cooling profiles when a user is detected in the vehicle seat, eliminating the need for manual temperature control operations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Power profiles representing different heating or cooling strategies are pre-stored in the control unit based on typical user preferences and environmental conditions. When a user is detected, the system immediately retrieves and applies the appropriate pre-prepared profile without requiring real-time driver decisions, thus preventing distraction while maintaining customization benefits.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple vehicle functions are made available to enhance driving experience, then user comfort and experience improve, but the number of controls increases and driver workload increases

Engineering Contradiction:
ImproveVehicle function availabilityVSAvoidDriver workload and control complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The climate control system operates autonomously by detecting user presence and automatically selecting appropriate temperature adjustment strategies from pre-stored profiles. This self-service operation eliminates the need for driver interaction with climate controls, reducing workload while preserving the versatility of temperature adjustment capabilities.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Multiple temperature control strategies and user preferences are merged into a unified automatic control system that selects the appropriate profile based on detected conditions. This consolidation allows the system to provide diverse climate control options without requiring separate manual controls for each scenario, simplifying the driver's interaction while maintaining adaptability.

Inventive Principle:
Principle #5Merging (Combining)

3Extent of automation

If automatic temperature control is implemented using pre-stored power profiles, then driver distraction is reduced and attention can focus on driving, but the system requires complex control logic and user profile management

Engineering Contradiction:
ImproveAutomatic temperature adjustmentVSAvoidControl system complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

Complex temperature control strategies and user preferences are pre-calculated and stored as power profiles in the control unit before driving scenarios occur. The automatic control logic simply retrieves and executes the appropriate pre-prepared profile based on detected user presence and environmental conditions, reducing the complexity of real-time decision-making while maintaining high automation capability.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances user experience by maintaining a comfortable vehicle temperature automatically, reducing driver distraction and stress, as the system learns and adapts to user preferences over time, ensuring efficient heating or cooling based on detected user presence and environmental conditions.

Implementation Method 1

The vehicle component is heated or cooled once a user is detected

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

The vehicle component is heated or cooled once a user is detected

Methodology Applied
Scientific EffectCooling: Cooling

Data Source

PatentEP3738802B1Automatic temperature adjustment of vehicle compartment components
Publication Date: 2024.09.11 VOLVO CAR CORP
  • EP3738802B1 patent drawingFigure 1~2
  • EP3738802B1 patent drawingFigure 3~5
  • EP3738802B1 patent drawingFigure 6

AI summary

The disclosed subject matter generally relates to a method for controlling the temperature of a vehicle compartment component. With the proposed method, the vehicle component is heated or cooled once a user is detected, using power profiles that are adapted to fit the user's needs. The heating or cooling is only activated when it is needed, and the power profiles ensures that the temperature of the vehicle component is adjusted according to profiles that closely mimics a typical user's desired heating or cooling profile. The above advantages are obtained by insights in typical usage pattern in heating or cooling of vehicle interior components identified in studies. It was realized that most users initially desire heating or cooling the vehicle interior component according to a first power profile and subsequently, after a time duration, adjusts the heating to second power profile. The user does not have to spend time and attention on adjusting the heat of the vehicle interior component.