Vehicle Height Adjustment Device for Stable Footing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle height adjustment devices fail to thoroughly lower the vehicle height during rapid deceleration and cannot switch to a height-raising operation until the lowering operation is complete, leading to instability and design issues in motorcycles.
Innovation Solution
A vehicle height adjustment device that predicts the vehicle stopping time and uses a switching valve to control the hydraulic jack, allowing for earlier initiation of height lowering during rapid deceleration and switching to height raising when necessary, ensuring stable footing and design compliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicle height lowering operation is initiated based on conventional speed threshold control, then vehicle height is lowered when speed drops below threshold, but vehicle height cannot be thoroughly lowered during rapid deceleration because the lowering operation cannot be discontinued once started
Solution Approach 1:
The control unit predicts stopping time in advance and initiates height lowering operation earlier than conventional methods when rapid deceleration is detected. This preliminary action ensures the height lowering completes before the vehicle actually stops, even during rapid deceleration events where the vehicle stops sooner than expected.
Solution Approach 2:
The system dynamically adjusts the height control operation based on predicted stopping time and actual vehicle behavior. When the vehicle stops earlier than predicted (rapid deceleration), the system can discontinue the lowering operation early. When the vehicle takes longer to stop, the system continues the lowering operation until completion, making the system adaptable to different deceleration patterns.
2Extent of automation
If vehicle height lowering operation is initiated at set vehicle speed threshold, then automatic height adjustment is achieved, but the operation cannot be switched to height raising until lowering is complete, causing delay in responding to changing vehicle conditions
Solution Approach 1:
The control unit continuously monitors vehicle stopping status and provides feedback to adjust the height control operation in real-time. When the vehicle stops earlier than predicted during rapid deceleration, the feedback mechanism allows the system to discontinue the lowering operation and switch to height raising operation, reducing the loss of time in responding to changing vehicle conditions.
3Stability of the object's composition
If vehicle height is maintained at travel height during deceleration, then shock absorption and bank angle performance are maintained, but footing stability is poor when the vehicle stops
Solution Approach 1:
The system performs preliminary height lowering action based on predicted stopping time before the vehicle actually stops. This ensures the vehicle height is reduced in advance to improve footing stability at the moment of stoppage, while the control unit monitors actual deceleration to adjust the timing and duration of the lowering operation.
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 device ensures improved footing and stability by thoroughly lowering the vehicle height before stoppage and allows smooth transition to height raising during deceleration changes, enhancing safety and design aesthetics.
Implementation Method 1
a hydraulic pump that supplies a working oil to the jack chamber of the hydraulic jack through a pumping operation resulting from extension and retraction of the piston rod with respect to the damper tube
Implementation Method 2
a switching valve for intake and discharge of the working oil, so as to implement switching for the working oil to the jack chamber of the hydraulic jack
Data Source
AI summary
A vehicle height adjustment device affords better footing by ensuring that a vehicle height is lowered upon vehicle stop.A vehicle height adjustment device 100 in a vehicle has means (ECU) for predicting a vehicle stopping predicted time, and when a predicted vehicle stopping predicted time is not more than a predefined reference vehicle stopping time, implementing a vehicle height lowering control mode, and enabling a vehicle height lowering operation through switching of a switching valve.