Spherical Wheel Lean Motor Camber Adjustment
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Solution Overview
Problem
Conventional vehicle suspension systems with fixed wheel camber angles require intrusive and time-intensive manual adjustments, fail to maintain stability and comfort during changing terrain and speed conditions, and cannot compensate for irregularities in road surfaces or terrain.
Innovation Solution
A suspension system with a steradian shaped wheel and a lean motor that dynamically adjusts the wheel camber angle by rotating the wheel arch along a perpendicular axis, using a gear track mechanism to maximize tire contact and reduce vehicle roll, thereby enhancing stability and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed wheel camber angle is used in conventional suspension systems, then the structure is simple and easy to manufacture, but the vehicle cannot maintain stability and grip when navigating curves at high speeds or when terrain conditions change
Solution Approach 1:
The patent applies the dynamics principle by implementing a motorized system that automatically adjusts the wheel camber angle in real-time based on vehicle operating conditions such as speed, steering angle, and terrain. This transforms the static fixed camber system into a dynamic adjustable system, allowing the wheels to maintain optimal camber angles during turns and on varying terrain, thereby improving vehicle stability without requiring complex manual intervention
Solution Approach 2:
The system employs sensors and control algorithms that automatically detect vehicle state and terrain conditions, then autonomously adjust the camber angle without driver intervention. The motorized adjustment mechanism self-regulates based on feedback from speed sensors, steering angle sensors, and terrain sensors, enabling the suspension system to serve itself in maintaining optimal wheel contact with the ground
2Adaptability or versatility
If manual adjustment of wheel camber angle is implemented, then the system structure remains simple, but the adjustment process is intrusive and time-intensive
Solution Approach 1:
The system transitions from static manual adjustment to dynamic automatic adjustment. A motorized actuator continuously or periodically adjusts the camber angle based on real-time sensor data regarding vehicle speed, steering input, and terrain conditions, enabling the system to adapt instantly to changing conditions without requiring the vehicle to be stopped or manual intervention
Solution Approach 2:
The system incorporates sensors that continuously monitor vehicle operating conditions including speed, steering angle, and terrain characteristics. This feedback is processed by a control system that automatically commands the motorized adjustment mechanism to achieve optimal camber angles, creating a closed-loop control system that eliminates manual adjustment delays
3Reliability
If a fixed negative wheel camber is used for high-speed cornering, then grip during turns is improved, but the system cannot compensate for irregularities in road surfaces or changing terrain conditions
Solution Approach 1:
The system uses dynamic adjustment of camber angle to adapt to varying terrain conditions. Sensors detect road surface irregularities and terrain changes, and the motorized adjustment mechanism modifies the camber angle in real-time to maintain optimal tire contact with the ground, whether navigating smooth highways, rough terrain, or irregular surfaces
Solution Approach 2:
The system changes the camber angle parameter dynamically based on detected terrain conditions. When irregularities or changes in terrain are detected by sensors, the control system adjusts the camber angle parameter to optimize tire contact and vehicle stability for the specific terrain conditions, rather than maintaining a fixed negative camber setting
4Stability of the object's composition
If dynamic adjustment of camber angle is implemented using a motorized system, then vehicle stability and tire contact are improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The system segments the suspension function into separate adjustable components. The motorized camber adjustment mechanism is implemented as a modular assembly that can be integrated into the existing suspension system, with independent sensors, actuators, and control units that can be manufactured and assembled separately, facilitating easier production and maintenance
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
The dynamic adjustment of wheel camber angle increases vehicle stability and comfort by minimizing roll and maximizing tire contact, reducing tire wear and maintaining the vehicle cabin level, while compensating for irregular road surfaces and terrain.
Implementation Method 1
a wheel arch including a gear track... a lean motor configured to engage with the gear track, wherein actuation of the lean motor causes the wheel arch to rotate along an axis perpendicular to the longitudinal axis of the vehicle
Data Source
AI summary
A suspension system for a vehicle is disclosed. In some embodiments, the suspension system includes a wheel arch. In some embodiments, a wheel arch includes a gear track. In some embodiments, a wheel axle is coupled to a first and a second end of the wheel arch. In some embodiments, a steradian shaped wheel is mounted on the wheel axle. In some embodiments, a motor frame is coupled to a chassis of the vehicle. In some embodiments, the motor frame includes a lean motor configured to engage with the gear track. In some embodiments, actuation of the lean motor causes the wheel arch to rotate along an axis perpendicular to the longitudinal axis of the vehicle to create a change in a camber angle of the wheel.