Steering Simulator Planet Assembly for Direct Road Feel Torque
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Solution Overview
Problem
Traditional non-direct drive automobile steering simulators face issues with gear vibration affecting steering feel transmission and belt flexibility weakening high-frequency steering feel, leading to suboptimal user experience.
Innovation Solution
The proposed automobile steering simulator structure incorporates a planet assembly with a sun gear, tension springs, and planet gears connected to a motor, providing a direct and robust torque transmission mechanism with a planet reduction mechanism, ensuring large transmission torque without delay or jitter, and utilizing metal or hard materials for durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If gear transmission is used to increase torque, then transmission torque is improved, but gear clearance causes vibration that interferes with steering feel transmission
Solution Approach 1:
The patent extracts and eliminates the gear transmission component from the system, replacing it with a direct drive mechanism. The motor's output shaft is directly connected to the steering wheel through a coupling, removing the source of gear vibration and interference with steering feel transmission while maintaining sufficient torque through direct motor output.
Solution Approach 2:
The patent replaces the mechanical gear transmission system with a direct electromagnetic drive system. The motor directly drives the steering wheel without intermediate mechanical transmission components, substituting a complex mechanical system with a simpler electromagnetic-mechanical direct connection that eliminates gear clearance issues.
2Force
If belt transmission is used to increase torque, then transmission torque is improved, but belt flexibility weakens high-frequency steering feel
Solution Approach 1:
The patent removes the belt transmission component from the system, replacing it with a direct drive connection. The motor's output shaft connects directly to the steering wheel through a rigid coupling, eliminating the flexible belt that would otherwise weaken high-frequency steering feel transmission.
Solution Approach 2:
The patent substitutes the flexible belt mechanical transmission system with a rigid direct drive system. The motor directly drives the steering wheel through a coupling, replacing the compliant belt mechanism with a stiff mechanical connection that preserves high-frequency steering feedback.
3Object-affected harmful factors
If direct drive is used to transmit steering feel, then steering feel transmission is improved, but transmission torque is reduced
Solution Approach 1:
The patent changes the motor selection parameters, choosing a motor with sufficient output torque to directly drive the steering wheel without transmission reduction. By selecting a motor with higher torque capability, the system achieves direct drive for improved steering feel while maintaining adequate transmission torque through motor selection rather than mechanical reduction.
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
This design effectively transmits steering road feel directly and maintains high torque transmission without delay or jitter, improving user experience while reducing system complexity and cost compared to traditional simulators.
Implementation Method 1
through a friction transmission between them, the power is transmitted from the sun gear to the planet ring or the planet carrier
Data Source
AI summary
The present application discloses an automobile steering simulator structure, comprising a simulator, a coupling and a steering wheel, wherein the coupling is fixedly connected to an output end of the simulator, and the steering wheel is fixedly connected to one end of the coupling, wherein a back cover is nested at a bottom of the simulator, a plurality of installation holes are provided at the bottom of the simulator, and a DC power interface and a USB interface are arranged in a middle of the back cover, wherein a first cavity and a second cavity are fixedly provided inside the simulator.