Vehicle Stabilizer Actuator Housing Segmentation

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Solution Overview

Problem

Conventional vehicle stabilizers face issues with torsional rigidity and efficiency due to a heavy actuator causing the stabilizer housing to sag and bend, leading to reduced stability and potential twisting of stabilizer bars.

Innovation Solution

A stabilizer design featuring a hollow motor actuator with a lightweight aluminum housing, supported by the vehicle body, and a system of interconnected bars that move in a width direction to adjust wheel supporters vertically, preventing sagging and twisting, and enhancing stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If a heavy actuator is used to provide sufficient force for stabilizer operation, then the actuator can generate adequate output force, but the actuator housing sags and moves downward due to its own weight, reducing stabilizer efficiency and causing stabilizer bar bending

Engineering Contradiction:
Improveactuator output forceVSAvoidactuator housing stability
Core Design Contradiction:
ForceVSStability of the object's composition

Solution Approach 1:

The stabilizer system is divided into separate functional components: the actuator (motor) is separated from the stabilizer bars, with the actuator housed in a dedicated housing that is independently supported. This segmentation allows the actuator to be optimized for force generation while the housing structure is optimized for support and stability, resolving the contradiction between needing heavy actuator force and maintaining housing stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The actuator housing is merged with the vehicle body structure through direct mounting. The housing is supported by the vehicle body, combining the actuator assembly with the vehicle's existing structural support system. This merging provides adequate support for the actuator housing without requiring the housing itself to be excessively rigid or heavy, thus maintaining stability while allowing sufficient actuator output force.

Inventive Principle:
Principle #5Merging (Combining)

2Device complexity

If only two mounting bearings are used to support the stabilizer, then the device complexity is reduced, but the stabilizer bars become inefficient because the heavy actuator moves downward under its own weight, causing the bars to bend

Engineering Contradiction:
Improvenumber of mounting bearingsVSAvoidstabilizer bar efficiency
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The actuator is extracted from direct connection to the stabilizer bars and placed in a separately supported housing. This extraction removes the source of the problem (the heavy actuator's downward movement) from the stabilizer bar support system, allowing the bars to function efficiently without being subjected to the actuator's weight, thus maintaining reliability with minimal mounting bearings.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The actuator housing serves as an intermediary between the actuator and the stabilizer bars. The housing supports the actuator and transmits only the necessary rotational motion to the stabilizer bars through the first bar, while isolating the bars from the actuator's weight. This intermediary structure maintains stabilizer bar efficiency without requiring additional mounting bearings beyond the two basic supports.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Weight of stationary object

If the actuator housing is not adequately supported, then the device complexity and weight are reduced, but the housing moves downward under the actuator's weight, causing stabilizer bars to twist and reducing vehicle stability

Engineering Contradiction:
Improvestabilizer system weightVSAvoidstabilizer bar twisting
Core Design Contradiction:
Weight of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The vehicle body structure provides a counterbalancing support force to the actuator housing, counteracting the downward force of the actuator's weight. This anti-weight support prevents the housing from moving downward and thus prevents stabilizer bar twisting, while the overall system weight is kept minimal by using only the necessary two mounting bearings and the lightweight housing structure.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The actuator housing is positioned and supported at an optimal location on the vehicle body where it achieves gravitational balance. By mounting the housing on the vehicle body at the appropriate position, the system achieves equipotentiality, minimizing the tendency for the housing to move downward under gravity while using minimal support structures, thus preventing stabilizer bar twisting without excessive weight.

Inventive Principle:
Principle #12Equipotentiality

Data Source

PatentUS10052930B2Stabilizer for vehicle
Publication Date: 2018.08.21 HL MANDO CORP
  • US10052930B2 patent drawing
  • US10052930B2 patent drawing
  • US10052930B2 patent drawing

AI summary

The present invention relates to a stabilizer for a vehicle which is installed between a pair of wheels of the vehicle and includes a first bar disposed to extend in a width direction of the vehicle; an actuator supported by a vehicle body of the vehicle and coupled to the first bar and a first connecting member to move the first bar in the width direction of the vehicle; and a second bar having one side connected to the first bar and the other side connected to one side of a wheel supporter which supports one wheel of the pair of wheels of the vehicle, wherein, when the first bar is moved in the width direction of the vehicle, the other side of the second bar is moved so that the one side of the wheel supporter is moved in an upper direction or a lower direction of the vehicle.