Steering Rack Stroke Adjusting Device for Dynamic Gap Control
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Solution Overview
Problem
Existing steering rack systems face a dilemma in adjusting their stroke to accommodate both the need for a reduced minimum rotation radius for easy steering and parking, while also ensuring a sufficient gap for chain installation, as the stroke needs to be both reduced and increased depending on driving conditions.
Innovation Solution
An automotive steering rack stroke adjusting device with rotary bodies, a stop plate, a motor, and a vehicle height sensor that automatically adjusts the steering rack's stroke based on the gap between steerable wheels and the vehicle body, allowing for optimized maximum stroke settings and increased adjustment range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the stroke of the steering rack is reduced to allow chain installation around the tiers, then the gap between the tire and adjacent elements is sufficient, but the minimum rotation radius of the vehicle increases, making steering difficult during U-turn or parking
Solution Approach 1:
The steering rack stroke is made dynamically adjustable through a stroke adjusting device that includes a stopper movable along the steering rack. The stopper position can be changed to vary the maximum stroke length, allowing the system to adapt between different stroke requirements for chain installation and easy steering operations.
Solution Approach 2:
The system changes the stroke parameter of the steering rack based on driving conditions. By moving the stopper to different positions, the maximum stroke length parameter is adjusted, enabling the steering rack to provide sufficient gap for chain installation when needed while allowing increased stroke for easier steering during U-turn or parking maneuvers.
2Ease of operation
If the stroke of the steering rack is increased to reduce the minimum rotation radius for easy steering, then steering during U-turn or parking becomes easier, but the gap between the tire and adjacent elements becomes insufficient for chain installation
Solution Approach 1:
The stroke adjusting device with a movable stopper enables dynamic control of the steering rack stroke. The stopper can be repositioned to limit the maximum stroke when sufficient gap for chain installation is required, while allowing full stroke range when easy steering is the priority.
Solution Approach 2:
The system adjusts the stroke parameter by changing the stopper position along the steering rack. This parameter change allows the gap between tire and adjacent elements to be maintained at appropriate levels while still enabling increased steering capability when needed for U-turn or parking operations.
3Length of moving object
If a fixed stroke of the steering rack is used to ensure sufficient gap for chain installation, then chain installation is facilitated, but the adjustment range is limited and driving convenience is reduced
Solution Approach 1:
The stroke adjusting device transforms the fixed stroke system into a dynamic one. The stopper can be moved to multiple positions along the steering rack, providing adjustable maximum stroke lengths that adapt to different driving conditions and requirements.
Solution Approach 2:
The stroke adjusting device adds multi-functionality to the steering rack system. The same steering rack can operate with different stroke lengths depending on the stopper position, making it universally applicable for both chain installation scenarios and easy steering scenarios without requiring separate systems.
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
This solution enhances driving convenience by automatically adjusting the steering rack's stroke to minimize the vehicle's rotation radius and accommodate varying driving conditions, improving the overall driving experience.
Implementation Method 1
a vehicle height sensor to measure a vehicle height
Implementation Method 2
a motor to apply a rotating force to one of the rotary bodies
Data Source
AI summary
An automotive steering rack stroke adjusting device is disclosed that detects a change in a gap defined between steerable wheels and a vehicle body depending on a change in the stroke of the steerable wheels using a vehicle height sensor, and automatically adjusts the rotation of a plurality of rotary bodies with respect to a stop plate of a steering rack, so that the optimized maximum stroke of the steering rack can be set according to the driving conditions of the vehicle. Furthermore, the present invention is able to increase an adjustment range of the stroke of the steering rack, so that a minimum rotation radius of the vehicle may be reduced, thus markedly enhancing the driving convenience.