Vehicle Corner Module Layout for Independent Wheel Steering

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Solution Overview

Problem

Current vehicle systems lack the flexibility to independently adjust driving, braking, and steering operations for each wheel, limiting their ability to adapt to various driving conditions and purposes, such as side driving and cornering, which affects stability and maneuverability.

Innovation Solution

A corner module apparatus that integrates driving, braking, and suspension systems into each wheel, allowing for independent operation of each wheel through a modular design with adjustable platforms and control units, enabling precise control of steering angles and camber adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a modular corner module apparatus with independent wheel control is implemented, then vehicle stability and maneuverability are improved, but device complexity increases

Engineering Contradiction:
Improvevehicle stabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The vehicle system is divided into independent corner module units, each controlling a specific wheel. Each corner module contains dedicated driving, braking, and steering components that operate independently, allowing individual wheel control for improved stability and maneuverability while maintaining modular architecture

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each corner module is designed as a multi-functional unit that integrates driving motor, braking mechanism, and steering control in a single assembly. This universal design allows the same modular structure to perform multiple functions simultaneously, reducing overall system complexity despite the advanced capabilities

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

2Adaptability or versatility

If independent operation of each wheel is enabled through modular design, then adaptability to various driving conditions is improved, but device complexity increases

Engineering Contradiction:
Improveadaptability to driving conditionsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The corner module apparatus enables dynamic adjustment of each wheel's driving, braking, and steering operations based on real-time driving conditions. The modular design allows independent control parameters to be adjusted dynamically, providing adaptability to various terrains and maneuvers while maintaining a standardized hardware platform

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system achieves adaptability by changing operational parameters (speed, torque, steering angle) of each corner module independently through electronic control. The modular hardware remains standardized, but the control parameters can be dynamically adjusted to suit different driving conditions, purposes, and configurations

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If wide-range steering angle adjustments are implemented, then maneuverability is improved, but manufacturing precision requirements increase

Engineering Contradiction:
ImprovemaneuverabilityVSAvoidmanufacturing precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The steering mechanism in each corner module is designed with dynamic adjustment capabilities that allow wide-range steering angles through controlled actuation. Rather than requiring precision-machined fixed geometry, the system uses adjustable linkages and controlled mechanisms that achieve wide steering ranges through dynamic positioning, reducing stringent manufacturing precision requirements

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4215394B1Corner module apparatus for vehicle
Publication Date: 2024.08.28 HYUNDAI MOBIS CO LTD
  • EP4215394B1 patent drawingFigure 1
  • EP4215394B1 patent drawingFigure 2
  • EP4215394B1 patent drawingFigure 3

AI summary

A corner module apparatus for a vehicle may include: a knuckle coupled to a wheel bearing rotatably supporting a wheel, a drive motor disposed in such a manner as to be spaced a distance away from the wheel and configured to generate a drive power, a transfer shaft module provided between the wheel and the drive motor and configured to transfer the drive power generated from the drive motor, a suspension unit connected to the knuckle and configured to absorb shock transferred from a road surface and a steering unit configured to support the drive motor and the suspension unit and to adjust a steering wheel of the wheel.