Motor Drive Parameter Module for Reliable Offline Actuation
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Solution Overview
Problem
Conventional drive systems with electric motors lack a simple and reliable method for actuation, particularly in scenarios where power failures or lack of connectivity to processors can lead to data loss and operational instability.
Innovation Solution
A drive system with an electric motor and an electric device featuring an electronic circuit, a module with DIP switches and memories for parameter storage, and a selector device that prioritizes data from a processor, a further memory, and the module, ensuring actuation can be performed safely and efficiently even without continuous processor connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If parameters are stored only in a processor connected to the electric device, then data transmission can be carried out, but data loss occurs in case of power failure or connectivity loss
Solution Approach 1:
The patent divides the parameter storage function into multiple independent storage locations: a first memory in the electric device and a second memory in the processor. This segmentation ensures that parameter data is not dependent on a single storage location, preventing total data loss if one storage fails or loses power.
Solution Approach 2:
The system performs preliminary action by storing parameter data in advance in both the first memory (electric device) and second memory (processor). This pre-storing of data ensures that parameters are available even before power failure or connectivity loss occurs, eliminating the need for re-transmission.
2Ease of operation
If a processor is connected for data transmission, then parameters can be input via keyboard or touch screen, but the actuation becomes more complex
Solution Approach 1:
The electric device is designed to be self-sufficient by incorporating a first memory that can store parameters independently of the processor connection. The device can autonomously retrieve and use stored parameters without requiring continuous processor connectivity, simplifying the actuation process while maintaining ease of parameter input through the processor when available.
3Speed
If parameters are stored in volatile memory, then data can be written and read quickly, but data is lost during power failure
Solution Approach 1:
The patent segments the memory system into two parts: volatile memory for fast data access and non-volatile memory for reliable data retention. The first memory in the electric device and second memory in the processor work together, with the non-volatile component ensuring data persistence while the volatile component provides rapid access during operation.
Solution Approach 2:
The system changes the state of parameter storage by maintaining parameters in both volatile and non-volatile forms simultaneously. This allows the system to exploit the speed advantage of volatile memory during active operation while relying on non-volatile memory for data preservation across power cycles.
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 straightforward and reliable actuation of the drive system by prioritizing data sources, ensuring parameter stability and rapid data transmission, and allowing for effective heat dissipation and easy servicing through modular design.
Implementation Method 1
the cover part being connectable to heat-producing components of the electronic circuit in a thermally conductive manner so that an effective heat dissipation is able to take place
Implementation Method 2
if the cover part has cooling fins on its outer side
Data Source
AI summary
In a drive system and a method for actuating a drive system having an electric motor and an electric device, which has an electronic circuit feeding the electric motor, the electric device includes a module, the electric device, e.g., the electronic circuit, being able to be connected to a processor, e.g., an actuation PC, for a data exchange, e.g., for actuating the drive system. The module is inserted into a depression, e.g., a recess, of the electric device, and the module including operable switches, e.g., DIP switches, and a memory for storing first parameters.