Throttle Valve Diagnostic Device with Integrated Cleaning and Verification
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Solution Overview
Problem
Conventional cleaning devices for vehicle throttle valves lack a method to verify if the engine returns to its default status after cleaning, necessitating a diagnostic tool to ensure effective carbon removal and optimal fuel consumption.
Innovation Solution
A diagnostic device with a circuit board, display screen, and cable unit that connects to a cleaning device, allowing for real-time monitoring of throttle valve status without engine control unit connection, using a power source from the vehicle's battery to display abnormal information and facilitate repeated cleaning until normal operation is achieved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cleaning device is connected to the throttle valve to clean carbon accumulation, then the cleaning function is achieved, but there is no way to check whether the engine is in its default status after cleaning
Solution Approach 1:
The patent combines the cleaning device and diagnostic device into a single integrated unit. The diagnostic device includes a microprocessor that can both control the cleaning operations (solvent injection, heating) and perform diagnostic measurements (intake air flow, exhaust gas analysis) to verify cleaning effectiveness, eliminating the need for separate external diagnostic equipment
Solution Approach 2:
The diagnostic device measures intake air flow and exhaust gas composition before and after cleaning, providing feedback to the microprocessor. This feedback mechanism allows the system to determine whether the throttle valve has returned to its default status and whether cleaning was effective, enabling verification of cleaning results
2Measurement precision
If the diagnostic device connects to the engine control unit to diagnose the throttle valve, then accurate diagnosis is achieved, but the device cannot operate independently without external power source
Solution Approach 1:
The diagnostic device is equipped with its own power source (battery) and self-contained measurement capabilities for intake air flow and exhaust gas analysis. It can independently perform diagnostic functions without requiring connection to the vehicle's engine control unit or external power source, making it a portable self-sufficient tool
Solution Approach 2:
The device performs multiple functions including cleaning (solvent injection, heating), diagnostics (intake air measurement, exhaust analysis), and verification of throttle valve status. This multi-functionality allows it to replace both separate cleaning and diagnostic equipment while maintaining diagnostic accuracy
Data Source
AI summary
A diagnostic device includes a body with a circuit board located therein. The body includes a display screen and a function button unit located on the outside thereof. A connection port and an insertion hole are respectively located to the body. An information cassette is inserted in the insertion hole and electrically connected to the circuit board. A cable unit has a first end and a second end, wherein the first end of the cable unit is connected to the connection port, and the second end of the cable unit is connected to a power source and an output port of a cleaning device which is connected to the throttle valve. When the diagnostic device detects abnormal information of the throttle valve via the cable unit, the display screen displays the abnormal information, the cleaning device cleans the throttle valve. The diagnostic device diagnoses the throttle valve afterward.