Sniffing Vehicle Data Bus Parameters Without Processor Interrogation
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Solution Overview
Problem
Existing methods for obtaining vehicular data while a vehicle is operational are limited, as they often lead to unpredictable behavior and engine failures, and require interrogating the vehicle's central processor, which can disrupt its operation and delay response times.
Innovation Solution
A device and method that allow vehicular data to be accessed and monitored without interrogating the vehicle's processor by 'sniffing' data from the vehicle data bus, processing it to identify parameters, and communicating them to an external data management system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If vehicular data is accessed by interrogating the vehicle's central processor, then data can be obtained, but the vehicle's operation is disrupted and response time is delayed
Solution Approach 1:
The patent introduces a data bus as an intermediary communication channel between the vehicle's sensors/components and external monitoring systems. Instead of directly interrogating the central processor, the system taps into the data bus to capture vehicular data, thereby obtaining information without disrupting the processor's operation or delaying responses.
2Loss of information
If vehicular data is accessed by interrogating the vehicle's central processor, then data can be obtained, but unpredictable behavior and engine failures may occur
Solution Approach 1:
The data bus serves as a non-intrusive intermediary that allows external systems to monitor vehicular data without directly interacting with the central processor. This approach eliminates the harmful effects of frequent processor interrogations, such as unpredictable behavior and engine failures, while still enabling comprehensive data access.
3Reliability
If continuous monitoring is implemented without interrogating the processor, then vehicle operation is not disrupted, but data processing complexity increases
Solution Approach 1:
The patent segments the data processing function into separate components: the data bus captures raw vehicular data, an external processing system analyzes and interprets this data, and results are communicated to users. This segmentation allows continuous monitoring without processor interruption while distributing computational complexity across multiple independent components rather than concentrating it in a single complex system.
Data Source
AI summary
The present invention relates to a device, system and a method for obtaining and monitoring vehicular parameters and in particular, to such a device, system and method in which vehicular parameters are sniffed and automatically ascertained from a vehicle controller data bus.