Battery Sensor Data Transmission via Housing Wall
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Solution Overview
Problem
In automotive engineering, existing battery monitoring systems require additional data lines for transmitting sensor signals, increasing manufacturing costs and error rates, and are inefficient in using available construction space.
Innovation Solution
A battery sensor data transmission unit that utilizes the battery housing wall as a transmission medium, employing capacitive or inductive coupling, or electrically conductive connections to transmit sensor signals to an evaluation device, allowing for reliable and interference-resistant data transmission without additional data lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional data lines are used to transmit sensor signals, then data transmission reliability is improved, but manufacturing costs and device complexity increase
Solution Approach 1:
The battery housing wall is designed to serve dual purposes: structural containment and data transmission medium. By integrating the transmission function into the existing housing structure, the patent eliminates the need for separate data lines while maintaining reliable signal transmission from sensor to evaluation device.
Solution Approach 2:
The patent combines the structural housing component with the data transmission function by using capacitive or inductive coupling through the housing wall. This merging of functions reduces the number of separate components and connections needed, thereby reducing device complexity while maintaining transmission reliability.
2Reliability
If additional data lines are installed for sensor signal transmission, then data transmission capability is improved, but manufacturing costs increase
Solution Approach 1:
The battery housing wall serves itself by performing both its primary structural function and the additional function of enabling data transmission. The housing structure utilizes its own electrical properties (through capacitive or inductive coupling) to transmit sensor signals, eliminating the need for separate data lines and reducing manufacturing costs.
Solution Approach 2:
The housing wall is designed to be multi-functional, serving as both the structural container and the data transmission medium. This eliminates the need for additional data lines and their associated manufacturing costs, while still providing reliable sensor signal transmission capability.
3Measurement precision
If dedicated data lines are provided for sensor transmission, then signal transmission accuracy is improved, but construction space utilization deteriorates
Solution Approach 1:
The patent merges the data transmission function with the existing housing structure by using capacitive or inductive coupling through the housing wall. This eliminates the need for separate data lines that would occupy additional construction space, while maintaining signal transmission accuracy for sensor data.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces manufacturing costs, optimizes construction space, and ensures reliable, interference-resistant transmission of battery sensor data, even when individual battery cells are decoupled from the series connection, enabling continuous evaluation of physical variables.
Implementation Method 1
a data transmission unit which is implemented to output a sensor signal representing a physical variable in or at the battery cell, using a battery housing wall and/or a wall of a battery cell as the transmission medium to an evaluation device
Implementation Method 2
employing capacitive or inductive coupling, or electrically conductive connections to transmit sensor signals to an evaluation device
Implementation Method 3
employing capacitive or inductive coupling, or electrically conductive connections to transmit sensor signals to an evaluation device
Data Source
AI summary
A battery sensor data transmission unit is described as including a data transmission unit, which is designed to output a sensor signal, which represents a physical variable in or at the battery cell to an evaluation device, using a battery housing wall and/or a wall of a battery cell as the transmission medium.