Interference Torque Split Differential Module
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Solution Overview
Problem
Standard differentials fail to achieve torque split, leading to poor driving stability and reduced transmission performance when wheels on either side of a vehicle experience different friction coefficients.
Innovation Solution
An interference-type torque split differential is introduced, featuring a differential housing with a first differential gear and an external interference torque split module comprising a second differential gear, brake sources, and/or a driving source, allowing for multiple stages of clamping force or driving force to achieve torque split.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standard differential is used, then the differential housing can be simple in structure, but torque cannot be split between wheels leading to poor driving stability
Solution Approach 1:
The differential system is segmented into two independent parts: a standard differential housing (maintaining simplicity) and a separate interference torque split module (providing torque distribution functionality). This allows each module to be optimized independently while working together to achieve both structural simplicity and driving stability.
Solution Approach 2:
The interference torque split module acts as an intermediary between the power source and the wheels, introducing interference gears that can selectively engage to distribute torque. This mediator enables torque split functionality without modifying the basic differential housing structure.
2Productivity
If a standard differential is used, then the device complexity is low, but transmission performance is reduced when wheels experience different friction coefficients
Solution Approach 1:
The interference torque split module introduces dynamic engagement capabilities through brake sources or driving sources that can adjust the interference gear engagement state. This allows the system to adaptively optimize transmission performance based on real-time wheel conditions while maintaining a relatively simple base structure.
Solution Approach 2:
The system can change operational parameters by adjusting the engagement level of the interference gears through multiple stages of clamping force or driving force. This enables flexible control of torque distribution to optimize transmission performance under varying friction conditions without requiring a completely complex differential structure.
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 solution effectively distributes torque between the wheels, enhancing vehicle stability and transmission performance by allowing for adjustable torque split, thereby overcoming the limitations of standard differentials.
Implementation Method 1
a first brake source and a second brake source providing multiple stages of clamping force for performing torque split
Implementation Method 2
a driving source providing multiple stages of driving force for performing torque split
Data Source
AI summary
An interference-type torque split differential includes a differential housing, a first differential gear and an interference-type torque split module. The first differential gear is provided in the differential housing. The interference-type torque split module is provided outside the differential housing and has a second differential gear, a first brake source and a second brake source. The second differential gear is connected with the first differential gear. The first brake source and the second brake source are at two sides of the second differential gear, respectively. The first brake source or the second brake source provides multiple stages of clamping force for performing torque split.