Adaptive Shock Absorber Damping Using Vehicle State Feedback
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Solution Overview
Problem
Conventional shock absorbers cannot adjust damping flexibly in response to changing vehicle running states, limiting driving and riding comfort and safety.
Innovation Solution
A method and apparatus that acquire and analyze vehicle acceleration and pitch signals to determine control parameters for the solenoid valve of the shock absorber, adjusting damping based on the vehicle's running state and working mode to match the current operational stability and comfort needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional shock absorber damping adjustment is used, then the structure is simple, but the damping cannot be adjusted flexibly in combination with vehicle running state
Solution Approach 1:
The shock absorber system transitions from static damping to dynamic damping adjustment by incorporating sensors that detect vehicle running states (acceleration, body attitude angles) and a controller that modifies solenoid valve opening in real-time based on detected conditions, enabling the damping characteristics to adapt dynamically to changing vehicle states
Solution Approach 2:
The system implements feedback control by using sensors to detect vehicle running state parameters (acceleration signals, body attitude angle signals), comparing these with target values, and adjusting the solenoid valve opening through the controller based on the deviation between actual and target damping characteristics, creating a closed-loop control system
2Adaptability or versatility
If single manner of adjusting damping is used, then the control system is simple, but the driving and riding experience is limited
Solution Approach 1:
The damping adjustment is segmented into multiple independent control dimensions by separately controlling solenoid valves in different circuits (rebound circuit and compression circuit), allowing independent adjustment of rebound damping and compression damping characteristics, thereby achieving more nuanced and versatile damping curve shaping
Solution Approach 2:
The shock absorber control system achieves multi-functionality by integrating multiple sensing capabilities (acceleration sensors, attitude angle sensors), multiple control modes (comfort mode, sport mode, standard mode), and multiple adjustment parameters (rebound damping, compression damping), enabling a single system to handle diverse driving and riding 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
Enables flexible adjustment of shock absorber damping to improve driving and riding experiences by matching damping to the vehicle's running state, enhancing safety and stability.
Implementation Method 1
an electronic control shock absorber may adjust the valve opening of a solenoid valve of the shock absorber and the damping of the shock absorber by adjusting current output to the solenoid valve of the shock absorber
Data Source
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AI summary
Provided are a shock absorber control method and apparatus, a control device, a vehicle, and a storage medium. The method includes: acquiring a current sensing signal group of a vehicle; judging whether signals in the sensing signal group all satisfy a preset trigger condition representing an influence on the operational stability of the vehicle; determining a first control parameter corresponding to a shock absorber of the vehicle according to the signals in the sensing signal group satisfying the preset trigger condition and a current working mode of the shock absorber when some or all of the signals in the sensing signal group satisfy the preset trigger condition; and controlling the operation of a solenoid valve of the shock absorber with the first control parameter to match a damping curve of the shock absorber with a current running state of the vehicle. In this way, the damping of the shock absorber can be adjusted flexibly according to the running state of the vehicle, thereby contributing to improving the driving and riding experience, and preventing the driving safety and the driving and riding experience from being affected by a single manner of adjusting the damping of the shock absorber.