Shift Perception Braille Module for Accessible Vehicle Control

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Solution Overview

Problem

Drivers with hearing or visual impairments face difficulties in perceiving shift stages in vehicles due to the reliance on visual and auditory cues, which are not accessible to them.

Innovation Solution

An apparatus and method that includes a vehicle shift controller, electronic shift operator, electronic braille module, and bone conduction earphones to provide shift stage information in braille and tactile formats, using CAN communication and a shift-by-wire system, ensuring accessibility and safety for drivers with disabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If shift stage information is displayed using visual indicators or auditory warnings, then drivers with normal sensory abilities can easily perceive shift stages, but drivers with hearing or visual impairments cannot perceive the shift stages

Engineering Contradiction:
ImproveAccessibility to drivers with disabilitiesVSAvoidShift stage information accessibility
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent introduces braille display modules and bone conduction earphones as intermediary devices that translate visual and auditory shift stage information into tactile forms. The braille modules convert shift stage data into raised dot patterns that visually impaired drivers can feel, while bone conduction earphones transmit vibrations through the skull to convey information to hearing impaired drivers, serving as mediators between the vehicle's electronic shift system and drivers with sensory impairments

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional visual and auditory information delivery mechanisms with tactile mechanical feedback systems. Braille display modules use mechanical actuators to raise and lower dots, creating tactile representations of shift stages. Bone conduction devices use mechanical vibrations transmitted through the skull bones to convey information, substituting the acoustic air-conduction path with a direct mechanical transmission path that bypasses the ear canal and eardrum

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If multiple output devices (braille module, bone conduction earphones, cluster) are used to provide shift stage information, then accessibility for drivers with disabilities is improved, but device complexity increases

Engineering Contradiction:
ImproveAccessibility to drivers with disabilitiesVSAvoidSystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent designs the shift information system with multi-functional capability by integrating multiple output devices (braille display modules, bone conduction earphones, and cluster displays) that can serve different user needs. The same shift stage information from the vehicle's controller is simultaneously routed to multiple output channels, allowing the system to adapt to different driver requirements without requiring separate independent systems for each type of driver

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent divides the shift information delivery function into separate modular components: braille display modules for tactile visual information, bone conduction earphones for auditory information, and cluster displays for traditional visual information. Each module handles a specific type of information delivery, allowing independent optimization and maintenance of each component while reducing the overall system complexity through functional segmentation

Inventive Principle:
Principle #1Segmentation

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 the driving safety and mobility of individuals with hearing or visual impairments by improving perceptibility of shift stages and risk factors through tactile and auditory feedback.

Implementation Method 1

bone conduction earphones that output the shift stage information or the shift planning stage information

Methodology Applied
Scientific EffectBone conduction:

Implementation Method 2

An electronic braille module is configured to output the shift stage information or the shift planning stage information in braille information

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentUS9518653B2Apparatus and method for shift perception
Publication Date: 2016.12.13 HYUNDAI MOTOR CO LTD
  • US9518653B2 patent drawing
  • US9518653B2 patent drawing
  • US9518653B2 patent drawing

AI summary

An apparatus for shift perception includes a transmission and a vehicle shift controller configured to perform shifting of the transmission. An electronic shift operator is configured to generate shift stage information by checking a state of a present shift stage or shift planning stage information by a shifting operation of a driver. An electronic braille module is configured to output the shift stage information or the shift planning stage information in braille information.