Variable Damper Suspension Control for Precise Ride Vibration Reduction
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Solution Overview
Problem
Conventional vehicle suspension systems are not accurate enough in adjusting damping forces to effectively reduce vehicle vibrations, relying on single or two parameters for control which is not very precise.
Innovation Solution
A vehicle suspension system that uses closed-loop control, where the variable damper provides a force based on the first acceleration of a component, incorporating additional parameters such as speed and damping factors to accurately control the displacement and improve ride comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional two-state skyhook control method is used to adjust damping force by selecting damping factor, then the control system is simple to operate, but the damping force adjustment precision is insufficient
Solution Approach 1:
The patent transitions from static two-state damping factor selection to dynamic continuous damping force control. The variable damper adjusts damping force in real-time based on actual acceleration feedback, enabling precise adaptation to varying road conditions rather than being limited to fixed damping factor states.
Solution Approach 2:
The patent implements closed-loop control by using the actual acceleration of the first component as feedback. The controller continuously monitors acceleration and adjusts the damping force accordingly, creating a self-regulating system that improves precision while maintaining operational simplicity.
2Object-affected harmful factors
If single parameter control is used for variable damper, then the control system is simple, but the vibration reduction effectiveness is insufficient
Solution Approach 1:
The patent changes the control parameter from indirect damping factor selection to direct acceleration-based damping force control. By using actual acceleration as the control parameter, the system directly targets the vibration reduction goal while maintaining a relatively simple control architecture through the direct relationship between acceleration and damping force requirements.
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 approach allows for precise control of the damping force, effectively reducing bumps and enhancing vehicle ride comfort by considering multiple parameters in the control process.
Implementation Method 1
the variable damper is configured to provide a first force to the first component based on a first acceleration of the first component, to control a displacement of the first component relative to the second component
Data Source
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AI summary
Embodiments of this application provide a vehicle, a control method for a vehicle suspension, and a related device. The vehicle includes a first component, a second component, and a vehicle suspension. The vehicle suspension is located between the first component and the second component. The first component is a component that the vehicle suspension bears, the second component is configured to bear the vehicle suspension and the first component, and the vehicle suspension includes a variable damper connected between the first component and the second component. The variable damper is configured to provide a first force to the first component based on a first acceleration of the first component, to control a displacement of the first component relative to the second component in a height direction of the vehicle. In the embodiments of this application, bumps in a driving process of the vehicle can be effectively reduced, so that vehicle ride comfort is improved.