Vehicle Control Unit Option Misjudgment Correction via Location Data
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Solution Overview
Problem
Vehicle control units often misjudge vehicle options during assembly, repair, or maintenance, leading to malfunctioning vehicles due to incorrect option determination, especially when transmission types or features like mirror folding are incorrectly identified.
Innovation Solution
An apparatus and method that utilize a location information searcher to determine if the vehicle is in an abnormal mode, such as a repair center or factory, and adjust the option values accordingly, storing these changes in memory until the vehicle is reset, ensuring accurate option determination and preventing malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the control unit determines vehicle options using logic based on part numbers or local inputs, then the vehicle can be assembled by normal procedure, but the control unit may erroneously determine option values when transmission control units are mounted incorrectly or connectors are detached
Solution Approach 1:
The control unit monitors the stability of option values received from transmission control units over a predetermined time period. If the option value changes frequently or becomes inconsistent, the control unit identifies this as abnormal behavior and prevents erroneous option determination, thereby maintaining reliable option identification even when components are incorrectly mounted or disconnected
Solution Approach 2:
The control unit performs preliminary validation by receiving and storing option values from transmission control units before final option determination. It maintains a history of option values and compares them to detect anomalies, ensuring that incorrect or unstable option data does not lead to erroneous vehicle configuration
2Ease of operation
If the control unit maintains option values until battery reset, then the option determination can be corrected after normal operation, but the vehicle may malfunction due to option misjudgment during the maintenance period
Solution Approach 1:
The control unit continuously monitors whether received option values are stable and consistent over time. When an option value is determined to be abnormal (changing frequently or inconsistently), the control unit triggers a correction mechanism that prevents the erroneous option from being applied, thereby avoiding vehicle malfunctions during the period before battery reset
Solution Approach 2:
The control unit takes preliminary corrective action by detecting abnormal option values before they can cause vehicle malfunctions. It implements a validation mechanism that blocks erroneous option determination and maintains the previous correct option state, preventing harmful effects before they occur
3Speed
If the control unit applies option values immediately upon receipt, then the response time is fast, but the option determination may be erroneous when transmission control units are detached or mounted incorrectly
Solution Approach 1:
The control unit performs preliminary validation of option values by receiving them from transmission control units and storing them for a predetermined time period before applying them. It checks whether the option value remains stable and consistent during this validation period, ensuring accuracy before final application while maintaining relatively fast response time
4Measurement precision
If the control unit uses local inputs to identify vehicle options, then the option identification is direct, but the wiring cost increases due to additional inputs
Solution Approach 1:
The control unit uses the existing transmission control unit, which serves multiple functions including transmission control and option information provision. By extracting option values from this multi-functional component through CAN communication, the system avoids adding separate dedicated option sensors or inputs, thereby reducing wiring complexity while maintaining accurate option identification
Data Source
AI summary
An apparatus for correcting option misjudgment of a control unit includes a location information searcher for generating location information of a vehicle. The control unit changes and applies an option value of the vehicle in response to an abnormal mode when a current location of the location information is in the abnormal mode.