Gear Shifting Mechanism for Vehicle Simulator Force Feedback
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Solution Overview
Problem
Conventional vehicle simulators face challenges in simulating the gear shifting operation due to the size, weight, and complexity of actual gearboxes, which occupy space, are difficult to mount and transport, and require type-specific setups, along with challenges in sensor mounting.
Innovation Solution
A gear shifting mechanism comprising a gear shifting lever connected to a central block with a pivot pin and a shaft, featuring a ball and spring system that mimics gear engagement through rotational and longitudinal movement, with a locking mechanism and sensing system to detect gear engagement, allowing for adjustable rotational freedom and integration with a clutch pedal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an actual gear box assembly is used in vehicle simulators to achieve realistic force feedback, then the simulation realism is improved, but the device size increases and occupies more space
Solution Approach 1:
The patent creates a simplified copy of the gear shifting mechanism that replicates the essential force feedback characteristics without using the complete actual gear box assembly. The simulation device copies only the critical elements needed to generate realistic forces during gear engagement and disengagement, thereby maintaining simulation realism while significantly reducing device size.
Solution Approach 2:
The patent extracts only the necessary components from the actual gear box assembly that are responsible for generating force feedback during gear shifting. By taking out and isolating these specific elements (such as the gear lever connection mechanism and spring-loaded ball system), the invention eliminates unnecessary bulk while preserving the core simulation function.
2Reliability
If an actual gear box assembly is employed to provide authentic gear shifting feel, then the force feedback accuracy is improved, but the device weight increases making it difficult to mount, dismount and transport
Solution Approach 1:
The patent creates a lightweight replica that reproduces the force feedback characteristics of an actual gear box without requiring the full-weight assembly. By copying only the essential mechanical elements that generate force feedback (levers, springs, balls, depressions), the device achieves force feedback accuracy while maintaining low weight for easy mounting, dismounting and transport.
Solution Approach 2:
The patent extracts only the weight-critical components needed for force feedback generation, eliminating the heavy housing and unnecessary structural elements of a complete gear box assembly. This selective extraction preserves force feedback accuracy while dramatically reducing device weight.
3Reliability
If an actual gear box is used to simulate gear shifting, then the authenticity of gear engagement feel is improved, but the adaptability decreases as the gear box needs to be changed for different vehicle types
Solution Approach 1:
The patent implements adjustable parameters in the simulation device, allowing the mechanical characteristics (such as spring stiffness, ball diameter, depression depth) to be dynamically modified to match different vehicle types. This dynamic adjustability enables the same base device to authentically simulate gear engagement feel across multiple vehicle configurations without requiring physical replacement of the gear box assembly.
Solution Approach 2:
The patent designs a universal simulation platform that can serve multiple vehicle types through parameter adjustment rather than requiring dedicated gear box assemblies for each vehicle. The device achieves multi-functionality by maintaining the core authentic gear engagement simulation capability while allowing configuration changes to adapt to different vehicle specifications.
4Measurement precision
If sensors are mounted on an actual gear box for simulation purposes, then the measurement capability is improved, but the ease of manufacture decreases due to mounting difficulties
Solution Approach 1:
The patent incorporates sensor mounting interfaces and measurement points directly into the design of the simulation device components during manufacturing. By preparing the structure in advance with integrated mounting features (such as built-in sensor housings or pre-positioned measurement points), the device achieves accurate sensor measurement capability while simplifying the manufacturing process and eliminating complex post-assembly mounting operations.
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
The mechanism provides a compact, adjustable, and realistic simulation of gear shifting, enabling effective training across various vehicles while simplifying sensor integration and reducing the need for type-specific setups.
Implementation Method 1
Axial movement of the rod is resisted by a spring-loaded ball engaging in a depression in a neutral position of the gear lever
Data Source
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AI summary
The subject matter described herein is directed to gear shifting and in particular is related to the field of simulation of gear shifting in a vehicle. The present subject matter proposes a strategic solution to eliminate the challenges experienced in the simulation of conventional gear shifting.