Vehicle Corner Module Camber Adjustment for Stable Handling

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current electric vehicle corner modules lack an efficient mechanism for dynamically adjusting the camber angle of wheels to improve handling and stability, especially during cornering and braking, which affects the vehicle's overall performance and safety.

Innovation Solution

A corner module apparatus that includes a drive power generator, a suspension system with adjustable arms, a steering system, and a camber adjuster with a camber driver, link system, and a locking structure, allowing for precise control of the camber angle through a camber controller to optimize wheel alignment and contact with the road surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a camber adjuster mechanism is added to dynamically adjust wheel camber angle, then vehicle handling and stability are improved, but device complexity increases

Engineering Contradiction:
Improvevehicle handling and stabilityVSAvoidcorner module structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the camber adjuster, steering system, and suspension system into an integrated corner module assembly. The camber adjuster shares the pivot bracket with the steering system, and both systems cooperate through the common pivot bracket structure, eliminating the need for separate mounting structures and reducing overall system complexity despite adding camber adjustment capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The pivot bracket serves multiple functions: it supports the steering system for wheel direction control, supports the camber adjuster for camber angle adjustment, and provides mounting points for both systems. This multi-functional design reduces the number of separate components needed and simplifies the overall structure.

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

2Stability of the object's composition

If a locking structure is added to maintain wheel position, then position stability is improved, but device complexity increases

Engineering Contradiction:
Improvewheel position stabilityVSAvoidcamber adjuster structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The locking structure uses spring-loaded locking members that automatically engage with guide rails to maintain wheel position. The spring force provides continuous pressure to keep the locking members engaged, and the system self-regulates without requiring external control mechanisms, achieving position stability through passive mechanical means.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If thread rod and pivot bracket are used for camber adjustment, then camber control precision is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvecamber angle control precisionVSAvoidlink system assembly
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent replaces complex multi-link mechanical camber adjustment mechanisms with a simpler thread rod and pivot bracket system. The thread rod converts rotational motion from the camber driver into linear motion that directly moves the pivot bracket, providing precise camber control through a minimal number of parts and simpler manufacturing requirements.

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

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 vehicle handling and stability by dynamically adjusting the camber angle of wheels, improving traction and safety during cornering and braking, and maintaining optimal wheel alignment for better performance and reduced wear.

Implementation Method 1

a thread rod supplied with the drive power from the camber driver for rotation about a central axis of the camber driver, and a pivot bracket connected to the thread rod and configured to reciprocate along a direction of a rotation of the thread rod

Methodology Applied
Scientific EffectScrew mechanism: Screw

Implementation Method 2

a second converter disposed on the other side of the pivot body, connected to the first arm or the second arm, and configured to convert a rotational motion of the pivot body into a reciprocating motion of the first arm or the second arm

Methodology Applied
Scientific EffectMechanical conversion: Lever

Implementation Method 3

a first locking member passing through the locking bracket and inserted into the guide rail, and a second locking member configured to be fastened to or separated from the first locking member and configured to restrict or allow a relative movement of the guide to the locking bracket

Methodology Applied
Scientific EffectMechanical locking: Mechanical Fastener

Data Source

PatentUS20230347974A1Corner module apparatus for vehicle
Publication Date: 2023.11.02 HYUNDAI MOBIS CO LTD
  • US20230347974A1 patent drawing
  • US20230347974A1 patent drawing
  • US20230347974A1 patent drawing

AI summary

Disclosed is a corner module apparatus for a vehicle. The corner module includes a drive power generator configured to provide drive power to a wheel, a suspension connected to the drive power generator, and including a first arm and a second arm spaced a distance apart from each other, a steering system configured to support the suspension, to be rotated relatively to a vehicle body, and to adjust a steering angle of the wheel, and a camber adjuster configured to move the first arm or the second art to adjust a camber angle of the wheel.