Compact Lean Actuator for Precise Cornering Stability Control
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Solution Overview
Problem
Existing small mobility vehicles face challenges in maintaining driving stability while cornering due to their heavy vehicle body and high center of gravity, and require high accuracy in lean angle control for safety.
Innovation Solution
A compact lean actuator is designed, comprising a motor, input shaft, reducer, and housing, capable of accurately sensing and controlling the lean angle, thereby enhancing driving stability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the vehicle body is made heavy with high center of gravity to provide structural stability, then the vehicle body strength is improved, but the driving stability deteriorates during cornering or turning
Solution Approach 1:
The patent applies counterweight principle by using the lean mechanism to shift vehicle body weight laterally during cornering. The lean actuator tilts the vehicle body in the direction of turn, effectively moving the center of gravity to counteract the centrifugal force, thereby maintaining driving stability despite the heavy vehicle body and high center of gravity
2Volume of moving object
If the lean actuator structure is made compact to fit small mobility vehicles, then the device size is reduced, but the measurement precision of lean angle may deteriorate
Solution Approach 1:
The patent uses an intermediary approach by incorporating a lean angle sensor that measures the rotation angle of the lean bar, which indirectly reflects the vehicle body lean angle. This intermediary measurement method allows accurate lean angle sensing within the compact actuator structure without requiring direct measurement of the vehicle body tilt
Data Source
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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.