Wet Oiling Brake Positioning for Narrow Vehicle Width
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Solution Overview
Problem
Existing vehicle designs face a conflict between achieving long control arm lengths for improved motion performance on rough terrain and maintaining a compact vehicle width, as longer control arms require a wider vehicle, making it difficult to navigate narrow spaces.
Innovation Solution
The implementation of a wet oiling brake system with a multiple disk clutch located between the front and rear propeller shafts, allowing the control arms to be longer while maintaining a narrow vehicle width by positioning the brake system within the intermediate frame, which does not require additional space in the front or rear frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the right-left lengths of the control arms are made long to secure excellent motion performance on rough terrain, then the motion performance is improved, but the vehicle width increases making it difficult to pass through narrow locations
Solution Approach 1:
The brake unit is positioned in the front-rear direction between the front and rear propeller shafts rather than in the right-left direction within the control arm area. This dimensional repositioning allows long control arms to extend further in the right-left direction without compromising vehicle width, as the brake system occupies space along the longitudinal axis instead.
Solution Approach 2:
The brake system is segmented into a compact multiple disk clutch configuration that fits within the limited space between propeller shafts. This segmentation allows the brake function to be integrated into the longitudinal layout without interfering with the lateral control arm dimensions.
2Length of moving object
If the vehicle width is made small to enable passage through narrow locations, then the vehicle compactness is improved, but it becomes difficult to make the control arms long
Solution Approach 1:
By relocating the brake unit to the front-rear direction between propeller shafts, the design frees up right-left space for longer control arms while maintaining a compact vehicle width. The brake system's longitudinal positioning eliminates the need to compromise lateral dimensions for brake accommodation.
3Ease of manufacture
If the wet oiling brake is located in the front frame or rear frame, then the brake system can be installed, but the widths of the front frame and rear frame must be increased
Solution Approach 1:
The brake unit is installed in the front-rear direction between the propeller shafts rather than in the right-left direction within the frame width. This longitudinal positioning allows brake installation without increasing frame width, as the brake system utilizes the available space along the vehicle's length instead of requiring additional lateral space.
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
This configuration enables the vehicle to maintain long control arms for improved motion performance while keeping the vehicle compact, allowing it to navigate narrow spaces effectively.
Implementation Method 1
The wet oiling brake brakes rotation of the front propeller shaft or the rear propeller shaft through contact between the first clutch plate and the second clutch plate
Implementation Method 2
a first inner space accommodating the first multiple disk clutch and lubricating oil
Data Source
AI summary
A vehicle includes an engine, a front frame, a rear frame, an intermediate frame, a front propeller shaft, a rear propeller shaft, and a wet oiling brake. A pair of right and left front lower arms are swingably mounted to the front frame. A pair of right and left rear lower arms are swingably mounted to the rear frame. The intermediate frame is located between the front frame and the rear frame. The front propeller shaft extends forward from the engine and the rear propeller shaft extends rearward from the engine. The wet oiling brake is located within a region defined by the intermediate frame in the front-rear direction and brakes a rotation of the front propeller shaft.