Power Tool Motor Parameter Recording for Repeatable Playback
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Solution Overview
Problem
Power tools lack the ability to record and playback motor parameters, limiting user customization and efficiency in operating modes.
Innovation Solution
A power tool with a mode selector switch and controller that allows users to select between recording, playback, and normal operating modes, enabling the recording of motor parameters during use and playback of those parameters for consistent operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power tools operate in normal mode only, then the device structure remains simple, but user customization capability and operational efficiency are limited
Solution Approach 1:
The power tool is designed with multiple operating modes (normal mode, recording mode, and playback mode) that allow the same device to perform different functions. The controller can record motor parameters during recording mode and replay them during playback mode, enabling the tool to adapt to various user needs without requiring multiple separate devices.
Solution Approach 2:
The system performs preliminary recording of motor parameters during recording mode before actual use. This allows users to capture optimal operating parameters in advance, which are then stored and automatically executed during playback mode, eliminating the need to manually adjust settings each time the tool is used.
2Productivity
If power tools lack parameter recording capability, then the device complexity remains low, but operational consistency and efficiency are compromised
Solution Approach 1:
The controller creates a digital copy of the motor's operating parameters by recording data such as speed, torque, and power consumption during recording mode. This copied parameter set is then stored in memory and automatically executed during playback mode, allowing the tool to reproduce optimal performance consistently without requiring complex real-time control adjustments.
3Ease of operation
If the power tool includes recording and playback functionality, then user customization improves, but the control system complexity increases
Solution Approach 1:
The power tool performs self-learning by automatically recording its own motor parameters during recording mode without requiring external measurement equipment or complex user intervention. The controller manages the entire process of parameter capture, storage, and automatic execution during playback mode, making the system easy to use despite the sophisticated functionality.
Data Source
AI summary
A power tool and method for recording and playing back a motor parameter. The power tool includes a housing, a motor, a trigger, and a controller. The trigger outputs an activation signal based on a user input. The controller receives a user mode selection signal indicating a selected mode. The controller enters the recording mode when the user mode selection indicates the recording mode, and records a motor parameter to generate a recorded motor parameter. The recorded motor parameter covers a first time period in which motor is operating in response to depression of the trigger, a second time period in which motor is inactive in response to release of the trigger, and a third time period in which motor is operating in response to another depression of the trigger. In the playback mode, the controller operates the motor based on the recorded motor parameter upon receiving the activation signal.