Steering Axle Power Steering Positioning for 50-Degree Wheel Cut
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Solution Overview
Problem
Commercial vehicles with a single front steering axle face interference issues due to the positioning of hydraulic power steering, which cannot be avoided in vehicles of insufficient length.
Innovation Solution
The power steering is positioned substantially over the steering axle, allowing the wheels to turn without interference, with levers placed either in front or rear of the power steering to transmit motion, enabling a 50-degree wheel cut.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the power steering is positioned at the end of the side members (conventional arrangement), then the steering components are easily accessible and the structure is simple, but the wheels interfere with the power steering during turning in vehicles of insufficient length
Solution Approach 1:
The power steering is repositioned from the conventional lateral arrangement (at the end of side members) to a longitudinal arrangement (over the steering axle). This dimensional change in positioning eliminates wheel interference during steering operations while maintaining vehicle compactness, as the wheels can now turn around the power steering without collision.
2Object-affected harmful factors
If the power steering is arranged as far as possible from the steering axle to avoid interference, then wheel interference is prevented, but the vehicle requires excessive length
Solution Approach 1:
Instead of increasing vehicle length to separate the power steering from the wheels, the invention repositions the power steering longitudinally over the steering axle. This dimensional repositioning allows the wheels to turn around the power steering in an arc, eliminating interference without requiring additional vehicle length.
3Object-affected harmful factors
If the power steering is positioned over the steering axle, then wheel interference is eliminated and 50-degree wheel cut is achieved, but the leverages must be repositioned in front or rear of the power steering
Solution Approach 1:
The power steering is positioned longitudinally over the steering axle, creating a new spatial arrangement where the leverages can be placed either in front or rear of the power steering. This dimensional repositioning enables the selection of the most convenient leverage placement for achieving the desired 50-degree wheel cut while avoiding wheel interference.
Data Source
Figure 1
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Figure 3
AI summary
Steering system assembly for commercial vehicles, the steering system comprising a steering axle (S), a power steering (1), leverages (2,3,4,5) to transmit the steering motion from the power steering (1) to a spindle arm (SP) of a steering wheel spindle of the steering axle, wherein the power steering (1) is arranged over the steering axle and substantially at the steering axles (S).