Clutch Brake Warning Indicator for Non-Synchronous Transmissions
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Solution Overview
Problem
Non-synchronous transmissions in commercial vehicles risk damage when the clutch brake is engaged while the vehicle and transmission gears are moving, due to the lack of feedback indicating the impending engagement, leading to potential damage.
Innovation Solution
A clutch brake warning system that provides tactile, audible, or visual feedback to the driver as the clutch pedal approaches the clutch brake engagement point, preventing premature engagement and potential damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the clutch brake is engaged while the vehicle and transmission gears are moving, then the transmission can be slowed down or stopped, but severe damage to the clutch can occur
Solution Approach 1:
The patent applies preliminary action by providing a warning indicator that activates before the clutch brake engages, alerting the driver to the impending engagement. This allows the driver to take corrective action (release the clutch pedal) before the brake engages and causes damage, thus preventing the harmful effect while maintaining the ability to slow down the transmission when needed
Solution Approach 2:
The patent implements feedback through a warning indicator that provides real-time information to the driver about the clutch brake's engagement status. The indicator is activated when the clutch pedal reaches a predetermined position, giving the driver feedback about the system state and enabling timely corrective action to prevent damage
2Ease of operation
If the clutch brake is engaged to slow down the input shaft, then gear engagement is enabled, but the driver lacks feedback indicating impending engagement, leading to potential damage
Solution Approach 1:
The patent implements feedback by providing a visual warning indicator that communicates the clutch brake's engagement status to the driver. The indicator activates when the clutch pedal reaches a predetermined position, ensuring the driver has information about impending engagement and can operate the transmission safely without losing awareness of the system state
3Reliability
If the clutch pedal is depressed fully to engage the clutch brake, then the input shaft stops turning for gear engagement, but the clutch may be engaged prematurely without warning
Solution Approach 1:
The patent applies preliminary action by providing advance warning through an indicator that activates before the clutch brake engages. This allows the driver to take preliminary corrective action (release the clutch pedal) to prevent premature engagement and damage, while still maintaining the ability to reliably engage gears when the proper procedure is followed
Solution Approach 2:
The patent implements feedback by providing real-time information to the driver about the clutch brake's engagement status through a warning indicator. This feedback mechanism prevents harmful premature engagement by making the engagement process transparent to the driver, allowing for timely corrective action
Data Source
AI summary
A device, sometimes referred to as a clutch brake warning indicator, that provides feedback, which may be tactile, audible or visual, to the vehicle operator as the clutch pedal is nearing the point of its stroke where the clutch brake will be engaged. In use, the feedback clutch brake warning indicator will assist the driver against applying the clutch brake during shifting operations, which can cause severe damage to the clutch.