Hydraulic Steering Control System with Direct Oscillating Arm Hinge
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Solution Overview
Problem
Existing steering control systems for vehicles with one or two front steering axles face issues of complexity, precision loss due to backlash, inadequate force distribution, and spatial constraints, particularly with hydraulic power steering systems that compromise strength and precision.
Innovation Solution
A steering control system with a 90° driving gear box and horizontally configured hydraulic power steering, where the control rod is hinged to the arm of the hydraulic power steering, allowing direct force distribution and optimized steering angles without the need for additional driving gears or tie rods, reducing stress on the frame and enhancing spatial efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional steering control systems with multiple driving gears and joints are used, then the steering function can be achieved, but the system complexity increases and precision is compromised due to backlashes
Solution Approach 1:
The patent extracts and eliminates the complex intermediate transmission components (multiple driving gears, crank gears, and joints) from the steering control system. By directly connecting the control rod to the oscillating arm of the hydraulic power steering, the system removes unnecessary mechanical linkages that cause backlash and precision loss, while maintaining the essential steering function.
Solution Approach 2:
The control rod is directly hinged to the oscillating arm of the hydraulic power steering in advance, establishing a direct force transmission path before operation. This preliminary configuration eliminates the need for complex intermediate mechanisms during actual steering operation, reducing backlash and improving precision.
2Force
If the hydraulic power steering is placed under the driving place, then the steering assistance can be provided, but the distance to steering axles increases and force distribution is negatively affected
Solution Approach 1:
The patent repositions the hydraulic power steering horizontally rather than vertically under the driving place. By changing the spatial dimension and orientation, the system reduces the effective distance to the steering axles and improves force distribution while maintaining the steering assistance function.
3Adaptability or versatility
If two steering axles are used with different steering angles, then the steering function is achieved, but the force distribution becomes unequal and requires additional driving gears
Solution Approach 1:
The patent employs an additional hydraulic cylinder that can dynamically adjust its action between the two steering axles. This dynamic system allows the force distribution to be unequal when needed (providing different steering angles for each axle) while eliminating the need for complex intermediate driving gears to achieve the same effect.
4Force
If additional hydraulic cylinder is added for two steering axles, then the steering assistance is improved, but the hydraulic system complexity and pipe passages increase
Solution Approach 1:
The additional hydraulic cylinder is designed with multi-functionality, allowing it to directly act on one steering axle while providing assistance to the other axle through direct mechanical connection. This universal component performs multiple functions (assisting both axles with different force distributions) without requiring separate hydraulic circuits or complex pipe passages for each axle.
Data Source
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AI summary
The present invention relates to a steering control system for vehicles with one or two steering axles, having the hydraulic power steering (4) connected to the vehicle frame (32) in a rear position or in an intermediate position between the first (1) and the second axle (2) of the vehicle. The first (41) and the second control rod (42) of the axles are directly connected to the oscillating arm (43) of said hydraulic power steering (4). An additional cylinder (5) directly acts on the oscillating arm of the hydraulic power steering (4).