Vehicle Clutch Protection via Torque Adjustment
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Solution Overview
Problem
The clutch in a vehicle experiences excessive frictional heating during driving, particularly on turns or on rough terrain, leading to performance degradation due to prolonged high-temperature operation.
Innovation Solution
A method and apparatus that monitor the oil temperature around the clutch and adjust the engine's output torque based on predefined thresholds to prevent overheating, involving a first protective mode that limits torque when the temperature is within a set range and a second mode that further reduces torque when temperatures exceed this range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the clutch is frequently compressed during vehicle driving on turns or rough terrain, then the torque distribution between front and rear shafts is improved, but the frictional heating of the clutch increases seriously
Solution Approach 1:
The system continuously monitors the clutch temperature and adjusts the engine output torque based on the detected temperature level. When the clutch temperature exceeds the first threshold, the system reduces engine torque to prevent excessive heating, creating a closed-loop feedback control mechanism that balances torque distribution needs with thermal protection
Solution Approach 2:
The system changes the operating parameters by adjusting the engine output torque based on clutch temperature conditions. By dynamically modifying the torque parameter according to temperature thresholds, the system prevents the clutch from operating in excessive heat while maintaining adequate torque distribution capability
2Power
If the clutch works at high temperature state for a relatively long time, then the torque transmission capability is maintained, but the performance of the clutch is seriously affected
Solution Approach 1:
The system takes preliminary protective action by monitoring clutch temperature and reducing engine torque output before the clutch reaches dangerous temperature levels. By proactively adjusting torque when temperature exceeds the first threshold, the system prevents performance degradation and extends clutch service life
Solution Approach 2:
The system converts the potentially harmful high-temperature operation into a beneficial protective mechanism by using temperature monitoring to trigger torque reduction. This transforms the thermal stress that would normally degrade clutch performance into a controlled parameter that protects the clutch from excessive heating
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
Effectively controls the clutch temperature, preventing excessive heating and maintaining its performance by dynamically adjusting engine torque in response to temperature and wheel speed differences between the front and rear shafts.
Implementation Method 1
A current oil temperature of a space where the clutch is located is acquired and whether the current oil temperature is within a set temperature interval or not is judged
Implementation Method 2
a clutch pressure piece is frequently compressed, so that the frictional heating of the clutch is serious
Data Source
AI summary
Related are a method and an apparatus for protecting a clutch in a vehicle driving process. The method comprises: acquiring a current oil temperature of a space where the clutch is located and judging whether the current oil temperature is within a set temperature interval or not; in a case where the current oil temperature is within the set temperature interval, detecting whether a current wheel speed difference between front shaft and rear shaft reaches to a set wheel speed difference threshold or not; and in a case where the current wheel speed difference between the front shaft and rear shaft reaches to the set wheel speed difference threshold, triggering a first protective mode that is preset to protect the clutch; and in a case where the current oil temperature is higher than the set temperature interval, triggering a second protective mode that is preset to protect the clutch.