Motorcycle Hydraulic Pipe Routing for Compact ABS Modulator Placement
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Solution Overview
Problem
Scooter-type vehicles with brake controllers on a handlebar face challenges in compactly arranging ABS modulators and delay valves, leading to longer hydraulic pipes and increased vehicle size, which contradicts the need for compactness and light weight.
Innovation Solution
The ABS modulator and delay valve are positioned inside the front cover and in front of the head pipe, with flexible hydraulic hoses routed to minimize length and attached using banjo bolts, allowing the hydraulic pipes to be shortened and the components to be securely fastened to the head pipe, reducing the overall size of the motorcycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the ABS modulator and delay valve are arranged in the center of the vehicle body, then the hydraulic pipe length is minimized, but the vehicle size increases due to insufficient space for compact arrangement
Solution Approach 1:
The patent transitions from arranging components in the longitudinal center of the vehicle to positioning them in the front cover area near the head pipe, utilizing a different spatial dimension and location to achieve both compact arrangement and short hydraulic pipes
2Volume of moving object
If the ABS modulator and delay valve are arranged compactly near the head pipe, then the vehicle size is reduced, but the hydraulic pipe length increases
Solution Approach 1:
The patent pre-positions the ABS modulator and delay valve near the head pipe in the front cover area before connecting hydraulic pipes, allowing the shortest possible pipe routing to be implemented from the brake controllers to these pre-positioned components
3Volume of moving object
If longer hydraulic pipes are used to accommodate compact component arrangement, then the vehicle becomes more compact, but the weight and complexity of the hydraulic system increases
Solution Approach 1:
The patent changes the spatial parameters of component arrangement to position the ABS modulator and delay valve near the head pipe, which directly reduces hydraulic pipe length and consequently reduces the weight of the hydraulic system
Data Source
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Figure 3(a)~3(b)
AI summary
An object of the present invention is to provide a technique for a motorcycle including brake controllers provided on a handlebar, the technique making it possible to make a vehicle body thereof smaller by shortening hydraulic pipes. Solving Means A third hydraulic hose (58) is extended from a first master cylinder (56) toward the center in a vehicle-width direction along a handlebar (17), further is routed along a head pipe (11), and then is connected to a first connection portion (57). A first hydraulic hose (73) is extended from a second master cylinder (72) toward the center in the vehicle-width direction along the handlebar (17), further is routed along the head pipe (11), and then is connected to a delay valve (54) by using a banjo bolt (81) directed in the vehicle-width direction. The lengths of hydraulic pipes can be shortened, a front cover can be arranged compactly by being located closer to the head pipe side, and thus the vehicle body can be made smaller.