Vehicle Brake Longitudinal Repositioning for Compact 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 make it difficult to keep the vehicle width small.
Innovation Solution
The vehicle incorporates a brake system located outside the engine and within an intermediate frame, allowing for narrower front and rear frames, enabling longer control arms while maintaining a compact vehicle width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the right-left lengths of 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 is repositioned from a lateral arrangement (affecting vehicle width) to a longitudinal arrangement along the front-rear direction. The brake is positioned in front of or behind the engine in the front-rear direction, utilizing the longitudinal dimension instead of the lateral dimension, thereby allowing long control arms without increasing vehicle width.
2Area of stationary 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:
The brake arrangement is changed from lateral (right-left direction) to longitudinal (front-rear direction). By positioning the brake in front of or behind the engine along the front-rear axis, the design utilizes the longitudinal dimension to accommodate the brake, thereby maintaining narrow vehicle width while allowing sufficient control arm length.
3Reliability
If long control arms are used to reduce changes in wheel position and orientation during up-down movement, then the motion performance is improved, but the vehicle width increases
Solution Approach 1:
The brake is repositioned to arrange along the front-rear direction instead of the right-left direction. Specifically, the brake is positioned in front of or behind the engine in the front-rear direction, within the region defined by the intermediate frame. This dimensional repositioning allows long control arms to be used for reduced wheel position changes while maintaining compact vehicle width.
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 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 brake is located outside the engine in the front-rear direction and within a region defined by the intermediate frame and brakes a rotation of the front propeller shaft.