Vehicle Control Apparatus Circuit Segmentation for Power Reduction

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Solution Overview

Problem

Vehicle control systems face challenges in reducing power consumption, especially when controlling multiple display devices, as high-performance systems tend to consume more power, leading to increased battery drain even when the vehicle is stopped.

Innovation Solution

A vehicle control apparatus with an operation state detection unit and energization control unit that selectively energizes internal circuits based on the vehicle's operation state, allowing only necessary circuits to be active, thereby reducing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If all internal circuits are energized to maintain full functionality, then the system can respond to any operation state, but power consumption increases

Engineering Contradiction:
Improvesystem functionalityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The control apparatus divides internal circuits into multiple separable groups that can be independently energized or deactivated based on operation state. This segmentation allows the system to maintain only the necessary functional subsets for each specific operation state, reducing overall power consumption while preserving full functionality when needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts the energization state of internal circuits based on real-time operation state detection. The control apparatus transitions between different energization configurations, activating only the circuits required for the current operation state, thereby optimizing the balance between functionality and power consumption.

Inventive Principle:
Principle #15Dynamics

2Use of energy by moving object

If the control apparatus is turned off to reduce power consumption, then battery drain decreases, but the system cannot control electronic devices when the vehicle stops

Engineering Contradiction:
Improvebattery power consumptionVSAvoidcontrol capability
Core Design Contradiction:
Use of energy by moving objectVSEase of operation

Solution Approach 1:

The control apparatus segments its internal circuits into controllable groups, allowing partial operation rather than complete shutdown. This enables the system to maintain minimal control capability during vehicle stops while consuming significantly less power than full operation, resolving the contradiction between power savings and control availability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control apparatus monitors its own operation state and automatically adjusts its energization configuration accordingly. When the vehicle stops, the system self-regulates to maintain only essential control functions, ensuring continuous operational capability without requiring full system power.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If high-performance control apparatus is used to control multiple display devices, then control functionality is enhanced, but power consumption increases

Engineering Contradiction:
Improvecontrol functionalityVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The control apparatus segments internal circuits into functional groups corresponding to different display devices and control tasks. This allows the high-performance system to activate only the specific circuit subsets needed for each control task, maintaining enhanced control functionality while reducing power consumption by deactivating unused high-performance components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system applies different energization states to different parts of the control apparatus based on local requirements. High-performance circuits are energized only when and where needed for specific display control tasks, while other parts operate at lower performance levels or remain deactivated, optimizing the balance between control capability and power consumption.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11597338B2Vehicle control apparatus and vehicle display system
Publication Date: 2023.03.07 DENSO CORP
  • US11597338B2 patent drawing
  • US11597338B2 patent drawing
  • US11597338B2 patent drawing

AI summary

The vehicle control apparatus for controlling the electronic device provided in the vehicle includes: an operation state detection unit for detecting at least one operation state of the vehicle; a plurality of internal circuits provided for operating the electronic device; and an energization control unit that energizes at least one of the internal circuits determined based on the at least one operation state.