Drive-train Damage Diagnosis via Motor Speed Comparison
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Solution Overview
Problem
The existing technologies for diagnosing damage to drive-train hardware in vehicles with disconnectors fail to effectively prevent motor RPM divergence, shocks, and breakdowns, compromising safety and increasing maintenance costs.
Innovation Solution
A vehicle drive-train hardware damage diagnosis apparatus and method that uses sensors to monitor the speed of auxiliary and main drive wheel motors and a controller to determine damage by comparing motor speeds, detecting defects in the disconnector system, and adjusting power delivery to prevent further damage and ensure safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate control of front wheels and rear wheels is performed without preemptive failure diagnosis, then driving performance is maintained through cooperative control, but greater damage to drive-train occurs and user safety is threatened
Solution Approach 1:
The patent implements preemptive failure diagnosis by monitoring motor speeds before actual damage occurs. The controller continuously compares main and auxiliary motor speeds to detect anomalies early, preventing progression to severe drive-train damage and ensuring user safety before critical failures happen.
Solution Approach 2:
The system establishes a feedback loop where motor speed data from sensors is continuously fed to the controller, which compares speeds and provides real-time diagnostic feedback. This closed-loop monitoring enables early detection of drive-train anomalies and allows corrective action before safety is compromised.
2Productivity
If disconnector is used to interrupt power delivery to auxiliary drive wheels, then performance is improved by alternating two-wheel and four-wheel drive, but motor RPM divergence and shocks may occur without proper diagnosis
Solution Approach 1:
The diagnosis system performs preliminary detection of drive-train anomalies before the disconnector operates. By monitoring motor speed differences in advance, the system prevents RPM divergence and shock events that would otherwise occur during abrupt power delivery interruption to auxiliary drive wheels.
Solution Approach 2:
The system applies preliminary anti-action by detecting abnormal speed differences between main and auxiliary motors before the disconnector interrupts power delivery. This early detection prevents the harmful effects of RPM divergence and shocks that would result from abrupt disconnection during operation.
3Reliability
If drive-train hardware damage is not diagnosed in a controlled way, then breakdowns and shocks increase, but replacement of parts and maintenance costs increase
Solution Approach 1:
The patent implements preliminary diagnosis of drive-train hardware damage before breakdowns occur. By continuously monitoring motor speed differences and detecting anomalies early, the system enables controlled, planned maintenance rather than emergency repairs, reducing overall maintenance costs while maintaining system robustness.
Solution Approach 2:
The diagnosis system enables self-service monitoring of drive-train health by automatically detecting anomalies through motor speed comparison. This self-diagnostic capability allows early identification of potential failures, enabling proactive maintenance scheduling that minimizes both breakdowns and unnecessary part replacements.
Data Source
AI summary
An apparatus and method for diagnosing damage to drive-train hardware of a vehicle in which a disconnector may obtain speed of an auxiliary drive wheel motor of the vehicle and speed of a main drive wheel motor of the vehicle and determines damage to the drive-train hardware including the disconnector that controls whether to interrupt delivery of power through engagement or disengagement between auxiliary drive wheel motor-side drive-train hardware and auxiliary drive wheel-side drive-train hardware, based on whether a difference between the speed of the auxiliary drive wheel motor and the speed of the main drive wheel motor exceeds a threshold value, Accordingly, preventing divergence of motor RPM by diagnosing damage to the drive-train hardware of the vehicle.