Straddle-Type Vehicle ABS Modulator Relocation for Center of Gravity Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional straddle-type vehicles with ABS modulators positioned high on the front side of the vehicle body lead to a raised center of gravity, particularly in compact designs, affecting the vehicle's stability and balance.
Innovation Solution
The ABS modulator is repositioned to be near the pivot bracket on the lower rear portion of the main frame, with the motor axis inclined outward and rearward, and hydraulic pressure pipes routed under the main frame, optimizing the center of gravity and weight distribution while maintaining a slim appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ABS modulator is disposed at a high position on the front side of the vehicle body, then the braking force adjusting function is achieved, but the center of gravity of the vehicle body is raised and shifted forward
Solution Approach 1:
The ABS modulator is relocated from the conventional high front position to a lower rear position near the pivot bracket, utilizing the three-dimensional space differently. This spatial reconfiguration moves the component along both the longitudinal and vertical dimensions, achieving lower center of gravity while maintaining braking functionality through proper hydraulic pipe routing.
Solution Approach 2:
Hydraulic pressure pipes serve as intermediaries to transmit braking force from the master cylinder to the wheel brakes, allowing the ABS modulator to be positioned remotely near the pivot bracket. The hydraulic system acts as a mediator that decouples the functional requirement (braking control) from the spatial constraint (component positioning).
2Volume of moving object
If the vehicle body is made compacter, then the vehicle size is reduced, but the ABS modulator has a more significant impact on the center of gravity position
Solution Approach 1:
In compact vehicle designs, the ABS modulator is positioned in the lower rear space near the pivot bracket, utilizing otherwise unused volume. This three-dimensional placement optimizes space utilization while ensuring the heavy component contributes to lowering the center of gravity rather than raising it.
3Shape
If the motor axis line is inclined outward and rearward, then a slim vehicle width is achieved, but the component arrangement becomes more complex
Solution Approach 1:
The motor axis line is intentionally inclined asymmetrically outward and rearward rather than being parallel to the vehicle centerline. This asymmetric orientation allows the motor to fit within the vehicle's width constraints while maintaining a slim appearance, and the design accepts the increased complexity as a trade-off for aesthetic and spatial optimization.
Data Source
AI summary
A position of a center of gravity of a vehicle body is easily optimized. An ABS modulator is disposed in a vicinity of a pivot bracket, which is joined to a lower rear portion of a main frame, and to which a swing arm is swingably connected.