Compact Lean Actuator With Angle Sensing for Stable Mobility

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Solution Overview

Problem

Small mobility vehicles face challenges with driving stability due to a heavy vehicle body and high center of gravity, and existing lean actuators lack compactness and high accuracy in lean angle control, posing safety concerns.

Innovation Solution

A lean actuator comprising a motor, input shaft, reducer, and housing, with a sensor unit to accurately sense lean angles, and a mobility vehicle incorporating this actuator for enhanced stability and dynamic driving.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a lean actuator is added to enable lean function, then driving stability is improved, but device complexity increases

Engineering Contradiction:

Improvedriving stabilityVSAvoiddevice complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The lean actuator integrates the motor, reducer, and sensor unit into a single compact assembly that combines lean control functionality with steering mechanism elements, reducing overall system complexity while maintaining stability improvement

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The actuator system performs multiple functions simultaneously - it provides both lean control for stability and interfaces with the steering mechanism, allowing one device to serve multiple purposes and reduce the need for separate dedicated components

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If lean angle control accuracy is increased for safety, then safety is improved, but device complexity increases

Engineering Contradiction:

ImprovesafetyVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The sensor unit replaces complex mechanical measurement mechanisms with a more integrated sensing system that directly measures lean angle with high accuracy without requiring additional mechanical linkages or complex calculation systems

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The sensor unit is integrated within the actuator housing and utilizes the existing structural elements for mounting and reference, allowing the system to self-calibrate and measure lean angle without external reference systems or additional complex components

Inventive Principle:

Principle #25Self-service

3Strength

If the vehicle body is made heavy for structural strength, then strength is improved, but driving stability deteriorates

Engineering Contradiction:

Improvestructural strengthVSAvoiddriving stability

Core Design Contradiction:

StrengthVSStability of the object's composition

Solution Approach 1:

The lean actuator system actively counteracts the destabilizing effect of heavy vehicle body and high center of gravity by generating controlled tilting moments that balance the gravitational effects during cornering and turning maneuvers

Inventive Principle:

Principle #8Anti-weight (Counterweight)

Data Source

PatentUS20260091839A1Lean actuator and mobility means comprising same

Publication Date: 2026.04.02 HL MANDO CORP

AI summary

According to the present embodiments, a lean actuator and a mobility means comprising same can be provided, the lean actuator comprising: a motor; an input shaft which is coupled to a motor shaft of the motor; a reducer which has an output shaft, to which a lean bar is coupled, and is coupled to the input shaft; and a housing which accommodates the reducer, and to which the motor is coupled.