Work Vehicle Sensor Replacement Fault Code Clearance
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Solution Overview
Problem
Efficient and effective maintenance management of sensor and actuator devices in work vehicle exhaust treatment systems is challenging due to complexity, inefficiency, and productivity issues, particularly in addressing faults and ensuring regulatory compliance.
Innovation Solution
An electronic control system that communicates with sensor and actuator devices to confirm identifiers, automatically clearing fault codes and inducements upon replacement, thereby streamlining the maintenance process by confirming replacement based on identifier matching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If manual fault code clearance procedures are used for sensor replacement, then service technicians can clear fault codes, but maintenance complexity and time requirements increase
Solution Approach 1:
The system automatically detects sensor replacement through identifier comparison and self-clears fault codes without requiring service technician intervention. The control system performs the maintenance management function autonomously by monitoring identifier changes and executing clearance procedures automatically.
Solution Approach 2:
The patent replaces manual mechanical procedures (service technicians using diagnostic tools) with an electronic automated system that compares identifiers and clears fault codes through electronic control, eliminating the need for physical diagnostic tool connections and manual intervention.
2Productivity
If service technicians use diagnostic tools to clear fault codes, then fault codes can be cleared, but maintenance time and productivity are reduced
Solution Approach 1:
The system performs preliminary detection of sensor replacement by monitoring identifier changes before fault code clearance is needed. By continuously comparing identifiers, the system is already aware of the replacement status and can immediately clear fault codes without waiting for technician intervention or diagnostic tool connection.
Solution Approach 2:
The identifier comparison and fault code clearance process operates continuously and automatically in the background during normal vehicle operation, eliminating interruptions and downtime. The system maintains continuous monitoring capability so that whenever a sensor is replaced, the fault code is cleared immediately without requiring separate maintenance stops.
3Measurement precision
If manual identification confirmation is required for sensor replacement, then replacement accuracy can be verified, but maintenance complexity increases
Solution Approach 1:
The system creates and stores a digital copy of the original sensor identifier in memory, then compares it with the new sensor identifier. This electronic copying and comparison process provides accurate verification of sensor replacement without requiring manual checking or documentation, as the control system automatically retains and compares the identifier data.
Data Source
AI summary
A power system for a work vehicle includes an engine that generates exhaust gas, an exhaust treatment system that treats the exhaust gas, and an electronic control system coupled to the engine and the exhaust treatment system and implementing a maintenance management system. The maintenance management system is configured to receive a first identifier associated with a first sensor or actuator device installed in the exhaust treatment system, store the first identifier in memory, receive a second identifier associated with a second sensor or actuator device installed in the power system of the work vehicle, compare the first identifier to the second identifier to determine that the first identifier differs from the second identifier and that the second sensor or actuator device is a replacement for the first sensor or actuator device in the exhaust treatment system, and clear any fault codes associated with the first sensor or actuator device.