Motor Module Self-Identification via Voltage Detection
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Solution Overview
Problem
Managing multiple vehicle-mounted devices with identical specifications and performance requires complex handling due to physical individual differences, such as shape and friction coefficients, necessitating separate identification and control of each motor module to operate correctly.
Innovation Solution
A motor module with a control unit that determines identification information based on the voltage applied according to its connection state with an operation module, allowing it to control the drive of the motor based on matching control information from a management module, eliminating the need for pre-stored identification information and simplifying management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If identification information is pre-stored in each motor module to enable correct operation of vehicle-mounted devices with identical specifications, then the system can distinguish between different physical individual differences, but the device complexity and handling become more complicated
Solution Approach 1:
The motor module automatically determines its own identification information by detecting the connection state with the operation module through voltage detection, without requiring pre-stored identification information or manual configuration. This self-service approach eliminates the need for complex initial settings and simplifies handling while ensuring correct operation.
Solution Approach 2:
The patent replaces the mechanical approach of pre-storing identification information in memory with an electrical detection method. The control unit detects voltage levels through the connection unit to automatically determine identification information, substituting a simple electrical detection system for complex data storage and management systems.
2Reliability
If separate identification and control of each motor module is implemented to account for physical individual differences, then each device can operate correctly, but the ease of operation and management is reduced
Solution Approach 1:
Each motor module automatically determines its own identification information by detecting the connection state with the operation module, eliminating the need for manual identification assignment or complex management procedures. The module serves itself by automatically configuring its identification based on its physical connection state.
Solution Approach 2:
The identification information is determined by detecting voltage parameter changes that occur based on the connection state between the motor module and operation module. Different connection states produce different voltage levels, which the control unit uses to automatically assign appropriate identification information.
3Reliability
If pre-stored identification information and drivers are transmitted via network for initial settings, then the motor module can be controlled correctly, but the initial setup process becomes time-consuming and complex
Solution Approach 1:
The motor module performs automatic self-identification by detecting voltage levels through its connection unit, eliminating the need for network-based transmission of identification information and drivers. This self-service mechanism reduces initial setup time from a multi-step network configuration process to a simple automatic detection process.
Solution Approach 2:
The identification information determination is performed automatically upon connection, before any control operations are initiated. The control unit detects the connection state and determines identification information in advance, so that when control commands are received, the module is already properly configured without requiring prior network setup.
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
Enables the appropriate operation of vehicle-mounted devices with identical types using motor modules of identical specifications, reducing handling complexity and eliminating the need for separate management of each module.
Implementation Method 1
a resistance circuit provided in a plurality of slave devices is connected in series to an electric wire connected to a voltage supply unit provided in the master device, and a voltage is applied to the electric wire from the voltage supply unit. Then, the slave device determines the identification information of the slave device, based on a voltage division value of a resistance circuit of the slave device.
Data Source
AI summary
A motor module includes: a motor; a driving unit; a control unit; a communication unit that performs communication via a network in the vehicle; and a connection unit to which an operation module is connected without going through the network. The control unit determines identification information of a vehicle-mounted device based on a voltage applied according to a connection state between the motor module and the operation module, controls the driving unit based on control information with information which coincides with the identification information transmitted from a management module that manages the motor module and received by the communication unit, and controls the driving unit to operate the vehicle-mounted device based on an operation signal input from the operation module according to an operation state of the operation module via the connection unit.