Vehicle Driver Information Standby Control for Fast Start-Up

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Solution Overview

Problem

Current driver information systems in vehicles face challenges in achieving the required start-up time of less than 10 seconds, especially with the integration of high-resolution graphical user interfaces and modern technologies, leading to longer loading times and increased power consumption, which can drain the vehicle battery when the ignition is switched off.

Innovation Solution

Implementing a driver information system with operating, standby, and hibernation modes, where the system operates with full power in the operating mode, reduced power in the standby mode, and no power in the hibernation mode, utilizing a seat occupancy detection device to switch between these modes based on occupancy and attention levels, thereby reducing power consumption and start-up time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If high-resolution graphical user interfaces and modern technologies (4K, animations, 3D) are integrated into the driver information system, then display quality and functionality are improved, but loading time increases and start-up time exceeds 10 seconds

Engineering Contradiction:

Improvedisplay qualityVSAvoidstart-up time

Core Design Contradiction:

Illumination intensityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by keeping the driver information system in a standby mode with reduced functionality after shutdown, maintaining essential processes in memory so that high-resolution displays and complex graphics can be rendered immediately upon restart without full reloading, thus reducing start-up time while maintaining display quality

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts its operational state between full operating mode and standby mode, allowing flexible transition that optimizes performance based on usage patterns, enabling quick recovery to high-quality display output without permanent hardware compromises

Inventive Principle:

Principle #15Dynamics

2Loss of energy

If the driver information system is kept in standby mode with reduced power consumption after shutdown, then battery power is conserved, but system responsiveness and start-up speed may be affected

Engineering Contradiction:

Improvebattery power consumptionVSAvoidsystem responsiveness

Core Design Contradiction:

Loss of energyVSSpeed

Solution Approach 1:

The system applies partial action by maintaining only essential processes and data in memory during standby mode rather than keeping the entire system fully operational, consuming reduced power while preserving enough functionality to enable fast restart and maintain system responsiveness when needed

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The system changes operational parameters by transitioning between different power states (full operation, standby, shutdown), adjusting memory allocation, processor activity, and peripheral device states to optimize the balance between power consumption and responsiveness based on detected usage patterns

Inventive Principle:

Principle #35Parameter changes

3Loss of energy

If the driver information system is completely shut down to save power, then battery consumption is minimized, but start-up time increases and battery may drain during extended parking periods

Engineering Contradiction:

Improvebattery power consumptionVSAvoidstart-up time

Core Design Contradiction:

Loss of energyVSLoss of time

Solution Approach 1:

The system performs preliminary actions by transitioning to a standby state rather than complete shutdown, pre-maintaining essential system processes and data in memory so that restart can occur quickly without full system initialization, thus reducing both start-up time and preventing excessive battery drain during parking periods

Inventive Principle:

Principle #10Preliminary action

4Reliability

If volatile computer data memory is kept energized during standby operation to preserve onboard system state data, then data loss is prevented, but power consumption increases

Engineering Contradiction:

Improvedata preservationVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system applies partial action by keeping only the volatile memory containing critical onboard system state data energized during standby mode, rather than powering the entire system, thus preserving essential data while minimizing power consumption to acceptable levels

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS11865983B2Method for reducing start-up time, vehicle, computer program and data carrier signal

Publication Date: 2024.01.09 CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH

AI summary

The invention relates to a method for reducing the start-up time of a driver information system in a vehicle comprising providing a driver information system having an operating mode, a standby mode, and a hibernation mode. The driver information system is operated with operating power in the operating mode, is not supplied with operating power in the hibernation mode, and is operated with reduced operating power in the standby mode. A seat occupancy detection device is provided for detecting seat occupancy of at least one vehicle seat. An activation system is provided for activating and operating the driver information system in the operating mode at least when the activation system is active; and changing the driver information system from the operating mode to the standby mode when the activation system is switched off and when seat occupancy is detected at the same time.