Moving body

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Solution Overview

Problem

Existing automatic driving vehicles lack effective cooling methods for external world information acquisition devices, which can lead to performance degradation due to heat buildup, especially when these devices extend in the width direction of the vehicle.

Innovation Solution

A moving body design that includes a cover member with strategically sized introduction ports to direct cooling air towards the external world information acquisition device and display device, where the first introduction port is larger than the second, ensuring active airflow and effective cooling of the LIDAR and other components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the external world information acquisition device operates continuously, then external world information can be acquired, but heat is generated and temperature rises to affect performance

Engineering Contradiction:
Improveperformance of external world information acquisition deviceVSAvoidtemperature of external world information acquisition device
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The patent applies pneumatic cooling by introducing air flow through the transmission portion to cool the external world information acquisition device. The air intake port is formed in the transmission portion, and air is introduced into the housing to dissipate heat from the LIDAR and other components, resolving the temperature rise issue while maintaining continuous operation

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent uses air as an intermediary cooling medium between the heat-generating external world information acquisition device and the external environment. The air flow acts as a heat transfer medium that absorbs heat from the LIDAR and other components, carrying it away to maintain device temperature within acceptable ranges

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the external world information acquisition device extends in the width direction, then field of view is improved, but cooling becomes more difficult due to increased surface area and heat generation

Engineering Contradiction:
Improvefield of view of external world information acquisition deviceVSAvoidtemperature distribution of external world information acquisition device
Core Design Contradiction:
Adaptability or versatilityVSTemperature

Solution Approach 1:

The patent segments the cooling approach by providing multiple air intake ports at different positions along the width direction, corresponding to different sections of the external world information acquisition device. This segmented cooling strategy ensures that each heat-generating section receives adequate cooling air flow, addressing the temperature distribution challenge across the extended device structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by positioning air intake ports at specific locations that correspond to heat-generating areas of the external world information acquisition device. The cooling air is directed to specific regions where heat is generated, providing localized cooling where needed rather than uniform cooling across the entire structure

Inventive Principle:
Principle #3Local quality

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

This design actively cools the external world information acquisition device, maintaining its performance and enabling stable automatic movement by efficiently dissipating heat generated by the LIDAR and other components.

Implementation Method 1

a blowout port configured to discharge air toward the external world information acquisition device and the display device along the inner side of the transmission portion

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 2

the introduction port includes a first introduction port formed by a gap between a portion overlapping the external world information acquisition device in a width direction of the moving body and the transmission portion

Methodology Applied
Scientific EffectFluid flow:

Data Source

PatentUS11912099B2Moving body
Publication Date: 2024.02.27 HONDA MOTOR CO LTD
  • US11912099B2 patent drawing
  • US11912099B2 patent drawing
  • US11912099B2 patent drawing

AI summary

An automatic driving vehicle, that is automatically movable, includes a front window, a LIDAR disposed at an inner side of the front window and configured to acquire external world information on an automatic movement, a display device disposed at the inner side of the front window, a cover member covering the LIDAR and the display device, and a blowout port configured to discharge air toward the LIDAR and the display device along the inner side of the front window. The cover member includes a first introduction port formed by a gap between a portion overlapping the LIDAR in a width direction of the moving body and the front window, and a second introduction port formed by a gap between a portion overlapping the display device in the width direction and the front window. The gap of the first introduction port is larger than the gap of the second introduction port.