Vehicle Air Mass Sensor Bundled Data Transmission

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Solution Overview

Problem

Existing air mass measurement devices for vehicles require multiple connections to forward various air-related data, which increases complexity and costs, and are limited in their ability to measure multiple physical parameters simultaneously.

Innovation Solution

An air mass measuring device with an integrated carrier element housing an air mass sensor, additional sensors (such as humidity and pressure sensors), and an evaluation circuit that bundles data from these sensors for transmission via a single output interface, reducing the number of required connections and enabling flexible measurement of air mass, humidity, pressure, and temperature.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple separate connections are used to transmit different sensor data (air mass, humidity, pressure, temperature), then each parameter can be transmitted independently and reliably, but the number of required connections increases, leading to increased device complexity and installation costs

Engineering Contradiction:
Improvedata transmission reliabilityVSAvoidnumber of connections
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple separate sensor data transmission connections into a single bundled connection. The carrier element integrates multiple sensors (air mass, humidity, pressure, temperature) and transmits all their data through one common connection to the evaluation circuit, thereby reducing the number of connections while maintaining data transmission reliability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single bundled connection serves multiple functions by simultaneously transmitting data from different sensors (air mass, humidity, pressure, temperature). This multi-functional connection replaces what would traditionally require multiple separate dedicated connections, simplifying the overall system architecture

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Device complexity

If only an air mass sensor is used, then the device structure remains simple, but the ability to measure multiple physical parameters simultaneously is limited

Engineering Contradiction:
Improvesensor integration structureVSAvoidmeasurement parameter coverage
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent merges multiple sensors (air mass sensor, humidity sensor, pressure sensor, temperature sensor) onto a single carrier element. This integration allows the device to measure multiple physical parameters simultaneously while maintaining a compact and manageable structure, rather than requiring separate devices for each measurement

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If multiple sensors are integrated on a single carrier element with bundled data transmission, then the number of connections is reduced and device complexity is lowered, but the requirements for data processing and evaluation increase

Engineering Contradiction:
Improveconnection structureVSAvoiddata processing requirement
Core Design Contradiction:
Device complexityVSExtent of automation

Solution Approach 1:

The evaluation circuit acts as an intermediary that receives bundled data from the carrier element, separates the individual sensor signals, and processes them appropriately. This mediator handles the increased data processing requirements, allowing the sensing portion of the device to remain simple while enabling comprehensive multi-parameter measurement

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3084364B1Air mass measuring apparatus, air mass measuring system and air mass measuring method for a vehicle
Publication Date: 2020.07.29 ROBERT BOSCH GMBH
  • EP3084364B1 patent drawingFigure 1~2
  • EP3084364B1 patent drawingFigure 3
  • EP3084364B1 patent drawingFigure 4~5

AI summary

The invention relates to an air mass measuring apparatus (102) for a vehicle, which air mass measuring apparatus has a support element (220, 222), an air mass sensor (224) for providing air mass data, wherein the air mass sensor (224) is arranged on the support element (220, 222), at least one further sensor (226, 326) for providing further sensor data, wherein the at least one further sensor (226, 326) is arranged on the support element (220, 222), and an evaluation circuit (228) having a first input interface for receiving the air mass data, at least one second input interface (464, 466) for receiving the further sensor data and having an output interface, wherein the evaluation circuit (228) is arranged on the support element (220, 222) and is designed in order to provide the air mass data and the further sensor data as bundled sensor data via the output interface.