Power Tool Motor Parameter Recording for Repeatable Trigger 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 complexity is low, but the adaptability and user customization capability are limited
Solution Approach 1:
The controller is designed to perform multiple functions by integrating recording mode, playback mode, and normal operating mode within a single device. The mode selector switch enables the controller to switch between these different operational states, allowing the power tool to adapt to various user needs without requiring separate devices for each function.
Solution Approach 2:
The recording mode allows users to pre-record motor parameters during a first operation, storing this data in the controller's memory for later use. This preliminary action enables the playback mode to automatically reproduce the same operational parameters in subsequent uses, eliminating the need for manual reconfiguration and ensuring consistent performance across multiple operations.
2Productivity
If motor parameters are recorded and stored, then the productivity and operational consistency are improved, but the use of energy increases due to continuous monitoring and storage operations
Solution Approach 1:
The controller operates in discrete operational modes (recording mode, playback mode, normal mode) rather than continuously performing all functions. The mode selector switch enables the controller to enter recording mode only when needed to capture motor parameters, and playback mode only when the recorded data needs to be executed. During normal operation, the controller consumes minimal energy, thus reducing overall power consumption while maintaining productivity benefits.
3Ease of operation
If a mode selector switch is added to enable recording and playback modes, then the ease of operation and user control are improved, but the device complexity increases
Solution Approach 1:
The mode selector switch is integrated with the existing trigger mechanism and controller architecture. The switch connects to the controller's existing processing capabilities, allowing mode selection to be combined with the tool's operational control in a unified system. This merging approach minimizes the addition of separate control circuits and reduces overall device complexity while maintaining ease of operation.
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.