Leaf Spring Height Adjuster for Load-Adaptive Vehicle Ride Height
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Solution Overview
Problem
Existing vehicle suspension systems fail to dynamically adjust vehicle height according to load and driving conditions, affecting exterior design, driver visibility, fuel efficiency, stability, and damage prevention.
Innovation Solution
A vehicle height adjuster system using a transverse leaf spring with an actuator, power source, and controller, which includes a hydraulic cylinder and piston assembly with guide rings, dust seals, and a conical spring to enable vertical displacement and adjust vehicle height based on driving conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple mechanical spring with constant spring constant is used as suspension spring, then the suspension system is simple in structure, but the vehicle height changes depending on the load on the vehicle
Solution Approach 1:
The patent applies the dynamics principle by making the suspension system adjustable through a height adjuster mechanism. The vehicle height can be dynamically changed by rotating an adjustment member that moves the leaf spring between raised and lowered positions, allowing the system to adapt to different load conditions and maintain proper vehicle height.
2Reliability
If the vehicle height is kept at designed appropriate height independent of load, then exterior design and driver visibility are improved, but the suspension system becomes more complex
Solution Approach 1:
The height adjuster mechanism allows the suspension system to dynamically adjust vehicle height to maintain the designed appropriate height regardless of load conditions. The adjustment member rotates to move the leaf spring between raised and lowered positions, keeping the vehicle at the optimal height for exterior design and driver visibility.
Solution Approach 2:
The suspension system incorporates a self-adjusting mechanism where the height adjuster automatically compensates for load changes. By rotating the adjustment member, the system self-regulates the vehicle height without requiring external intervention or complex control systems.
3Productivity
If the vehicle height is adjusted according to driving situation, then fuel efficiency and driving stability are improved, but the control system becomes more complex
Solution Approach 1:
The height adjuster mechanism enables dynamic vehicle height adjustment based on driving situations. By rotating the adjustment member, the leaf spring moves between raised and lowered positions, optimizing fuel efficiency through lower height on highways and improving stability on rough roads.
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
Enables dynamic adjustment of vehicle height to enhance exterior design, improve driver visibility, fuel efficiency, and prevent damage, while ensuring driving stability and convenience.
Implementation Method 1
the power source may include a hydraulic pump configured to generate hydraulic pressure to be provided to the hydraulic cylinder
Implementation Method 2
a conical spring inserted between the lower end portion of the piston and the cylinder
Data Source
AI summary
A vehicle height adjuster includes an actuator provided to form vertical linear displacement between a leaf spring and a suspension arm, a power source connected to the actuator and configured to provide power to drive the actuator, a vehicle height sensor provided to detect a change in a height of the suspension arm relative to a vehicle body, and a controller connected to the vehicle height sensor and the power source and configured to receive a signal from the vehicle height sensor and to control the power source to drive the actuator.