Motorcycle Synchronized Front Rear Suspension Height Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motorcycle designs with vehicle height adjustment systems only provide this feature on the rear suspension, leading to an unstable riding position for the rider due to changes in vehicle height, as the front fork does not have a similar adjustment mechanism.
Innovation Solution
A motorcycle design that incorporates hydraulic pumps and jacks in both the rear suspension and front fork, allowing for controllable vehicle height adjustments based on detection results from height sensors, synchronizing rear-wheel and front-wheel height adjustments to maintain a stable riding position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vehicle height adjustment is provided only in the rear suspension, then the rear-wheel-side vehicle height can be adjusted, but the rider's driving position becomes unstable due to asymmetric height changes
Solution Approach 1:
The patent combines the vehicle height adjustment function in both the rear suspension and front fork, merging the previously separate rear-only adjustment system into a coordinated dual-side system. This ensures symmetric height changes that maintain rider stability while preserving the adaptability of height adjustment.
Solution Approach 2:
The patent implements controllable and synchronized actuation of hydraulic jacks in both rear and front suspension systems. The dynamic coordination of height adjustment on both sides allows the vehicle body to change height uniformly, maintaining rider position stability during the adjustment process while still providing the desired height adaptability.
2Ease of operation
If vehicle height is increased while stopped, then the rider can dismount more easily, but the rider must assume a forward-leaning position that is unstable
Solution Approach 1:
By combining height adjustment in both front and rear suspension systems, the patent enables symmetric vehicle body elevation that maintains balanced rider positioning. The rider can dismount easily from an elevated position without leaning forward, as both wheels rise together, preserving stability while improving ease of operation.
Solution Approach 2:
The synchronized dynamic actuation of hydraulic jacks in front and rear suspension systems ensures that the vehicle body rises uniformly. This coordinated movement maintains the rider's center of gravity position relative to the vehicle, allowing easy dismounting without the unstable forward-leaning posture required by rear-only adjustment.
3Stability of the object's composition
If a hydraulic pump is added to the front fork to enable height adjustment, then the rider's position stability is improved, but the device complexity increases
Solution Approach 1:
The patent employs a universal hydraulic pump design that can serve both the front fork and rear suspension systems. This multi-functional pump reduces the overall device complexity compared to having separate dedicated pumps for each suspension system, while still enabling synchronized height adjustment for improved rider stability.
Solution Approach 2:
By merging the hydraulic pump function into a shared system that controls both front and rear suspension height adjustment, the patent reduces component redundancy. The combined system achieves the stability benefit of dual-side adjustment while minimizing the increase in device complexity through functional integration.
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 synchronized vehicle height adjustments in both the rear and front forks stabilize the rider's position during height changes, ensuring a more stable and comfortable ride by displacing the vehicle body appropriately and reducing the likelihood of the rider leaning forward when stopping.
Implementation Method 1
a hydraulic jack with a plunger that is thrust by hydraulic oil discharged by the hydraulic pump
Implementation Method 2
a suspension spring supported by the plunger of the hydraulic jack
Data Source
AI summary
An object of the present invention is to stabilize a rider's driving position in spite of a change in vehicle height. Provided is a motorcycle 1 that adjusts a vehicle height by interlocking a rear-wheel-side vehicle height adjusting operation based on controllable actuation of a hydraulic jack 41 provided in a rear suspension 10, with a front-wheel-side vehicle height adjusting operation based on controllable actuation of a hydraulic jack 141 provided in a front fork 110.