Vehicle Electronic Device Temperature-Based Mode Switching

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Solution Overview

Problem

Electronic devices in vehicles face challenges in ensuring the proper operation of the eCall function across a range of environmental conditions, particularly extreme temperatures, and require a lifespan guarantee test that distinguishes between different operating scenarios.

Innovation Solution

An electronic device with a temperature sensor and controller that switches between normal and limited control modes based on temperature, enabling the eCall function during emergency situations while disabling performance-limiting functions, and conducting lifespan tests under varying conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the electronic device operates in normal mode with performance limiting functions enabled, then the device can extend its lifespan and manage heat, but the eCall function cannot operate reliably in extreme temperature conditions

Engineering Contradiction:

ImproveeCall function reliabilityVSAvoidoperating temperature range

Core Design Contradiction:

ReliabilityVSTemperature

Solution Approach 1:

The controller dynamically switches between normal mode and emergency mode based on temperature conditions. In normal mode, performance limiting functions are enabled to manage heat. When extreme temperature is detected, the controller transitions to emergency mode where performance limiting functions are disabled to ensure reliable eCall operation, thus adapting the system behavior to environmental conditions

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters (performance limiting function status) based on temperature thresholds. The controller monitors temperature and adjusts the performance limiting function enable/disable state accordingly, allowing the eCall function to operate reliably in extreme temperatures when needed while maintaining thermal management during normal operation

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the electronic device disables performance limiting functions during emergencies, then the eCall function can operate in extreme environments, but the device may overheat during extended operation

Engineering Contradiction:

ImproveeCall function stabilityVSAvoidthermal energy management

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The system dynamically adjusts performance limiting function status based on real-time temperature monitoring. During emergency eCall operations, performance limiting functions are disabled to ensure stable communication. During normal extended operations, performance limiting functions are re-enabled to prevent overheating, creating a dynamic balance between reliability and thermal management

Inventive Principle:

Principle #15Dynamics

3Duration of action of stationary object

If the electronic device performs lifespan guarantee tests under normal conditions, then the device achieves extended operational lifespan, but the device cannot ensure proper operation under extreme temperature conditions

Engineering Contradiction:

Improvedevice lifespanVSAvoidextreme environment operation

Core Design Contradiction:

Duration of action of stationary objectVSReliability

Solution Approach 1:

The controller is pre-configured with temperature thresholds and mode switching logic that enables it to automatically transition from normal operation (optimized for lifespan) to emergency mode (optimized for extreme environment reliability) when needed. This preliminary setup ensures both lifespan extension under normal conditions and reliable operation under extreme conditions without requiring separate test configurations

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

Ensures stable eCall function operation even in short-time extreme environments and supports lifespan guarantee by enabling the eCall function during emergencies while managing performance in normal conditions, thus ensuring reliable operation and extended lifespan.

Implementation Method 1

a temperature sensor configured to measure a temperature associated with a measurement target to generate a measured temperature

Methodology Applied

Scientific EffectTemperature sensing:

Data Source

PatentUS12167312B2Electronic device and operating method

Publication Date: 2024.12.10 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic device mounted in a vehicle and including; a temperature sensor configured to measure a temperature associated with a measurement target to generate a measured temperature, and a controller configured to operate in a normal operating mode if the measured temperature is less than a first reference temperature, and further configured to operate in a limited control mode if the measured temperature is greater than or equal to the first reference temperature. During the normal operating mode, the controller is enabled to perform a performance limiting function, and during the limited control mode, the controller is enabled to perform an emergency call (eCall) function and is disabled to perform a performance limiting function.