Ball Joint Overmolding Without a Joint Pin
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Solution Overview
Problem
Existing methods for controlling driving dynamics in working machines, such as agricultural and building machines, are inadequate in managing wheel slip and traction issues across varying terrains and conditions.
Innovation Solution
A method that utilizes a control unit to detect current wheel rotational speeds, compare them to acceptable speeds, calculate wheel slip, and emit signals to lock or unlock differential gear systems to maintain optimal traction and driving dynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If differential gear systems are locked to prevent wheel slip, then traction is improved, but maneuverability deteriorates
Solution Approach 1:
The differential lock is not fixed but dynamically controlled - it can be locked when wheel slip is detected and unlocked when normal conditions return. This dynamic switching allows the system to gain traction when needed while maintaining maneuverability when the lock is released, resolving the contradiction between reliable traction and ease of operation.
Solution Approach 2:
The system changes the operational parameter of the differential (from unlocked to locked state) based on detected wheel slip conditions. By monitoring wheel rotational speeds and comparing them to acceptable ranges, the system adjusts the differential lock state to optimize both traction and maneuverability at different times.
2Reliability
If differential gear systems are locked continuously to maintain traction, then wheel slip is reduced, but mechanical wear increases
Solution Approach 1:
The differential lock is engaged periodically only when wheel slip is detected, not continuously. The control unit monitors wheel speeds and activates the lock temporarily during slip events, then releases it when conditions normalize. This periodic engagement maintains effective wheel slip control while significantly reducing mechanical wear compared to continuous locking.
Solution Approach 2:
The system uses its own operational data (wheel rotational speeds) to automatically control the differential lock without external intervention. The control unit detects wheel slip conditions and autonomously activates/deactivates the lock, ensuring traction control only when the vehicle's own performance indicates it is needed, thereby minimizing unnecessary wear.
3Reliability
If wheel rotational speed is monitored continuously to detect slip, then driving dynamics control is improved, but energy consumption increases
Solution Approach 1:
The system uses feedback from wheel rotational speed sensors to control the differential lock. The control unit continuously monitors wheel speeds, compares them to acceptable ranges, and adjusts the lock state accordingly. This feedback mechanism improves driving dynamics control by responding to actual wheel slip conditions while consuming energy only when monitoring and control actions are necessary, rather than through continuous high-energy operations.
Data Source
AI summary
A method for producing a ball joint (18) and/or a chassis component (19), in which a joint ball (1) is made, in which the joint ball (1) is placed in an injection-molding die, in which the joint ball (1) is partially overmolded with a plastic material, and in which the plastic material is hardened to form an injection-molded joint housing (2) for the joint ball (1). A joint housing (2) is formed using the joint ball without a joint pin (10), and the joint ball (1) has respective pole surfaces (3, 4) on two sides remote from one another.