用いて：using, by using

制御装置は、モータ電流とモータトルクの関係式を用いて、電流指令値を作成する。

ChatGPT:

ChatGPT

The control device generates a current command value using the relational expression between the motor current and the motor torque.

あなた:

How about "by using", "by means of", "based on", or "with", instead of "using"?

ChatGPT:

ChatGPT

Each alternative—"by using," "by means of," "based on," and "with"—is grammatically correct, but they have slightly different nuances. Here’s how they compare in this context:

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Comparison of Alternatives:

Phrase	Nuance & Suitability	Explanation
"Using" ✅ (Most common)	Neutral and direct	Most natural in technical writing, emphasizing the method without additional emphasis on process or reasoning.
"By using" ✅ (Acceptable, slightly more explicit)	Adds a slight emphasis on the action of using	Slightly wordier than "using," but conveys the same meaning.
"By means of" ⚠️ (More formal, indirect)	Emphasizes the relational expression as a tool	More common in formal scientific or academic writing, but may sound too stiff for standard technical descriptions.
"Based on" ✅ (Good for logic-driven processes)	Implies the control device derives the current command value from the equation	More suitable if the relationship is used for decision-making rather than just a calculation method.
"With" ⚠️ (Less precise)	Could be vague, implying accompaniment rather than methodology	Acceptable, but not ideal for precise technical descriptions.

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Best Choice for Your Sentence:

✔ For general technical writing:

• "The control device generates a current command value using the relational expression between the motor current and the motor torque." (Most natural and direct)
• "The control device generates a current command value by using the relational expression between the motor current and the motor torque." (Slightly more explicit, but essentially the same meaning.)

✔ For emphasizing the logic behind the calculation:

• "The control device generates a current command value based on the relational expression between the motor current and the motor torque."

✔ For a more formal scientific tone:

• "The control device generates a current command value by means of the relational expression between the motor current and the motor torque."

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Final Recommendation:

"Using" or "based on" are the best choices, depending on whether you want to emphasize methodology (using) or logical derivation (based on).

Would you like a refined version for a specific technical document type (e.g., patent, research paper, product manual)? 😊

あなた:

So, "using" is better than "by using" for brevity sake, isn't it?

ChatGPT:

ChatGPT

Yes, "using" is better than "by using" for brevity.

Why?

✔ "Using" is more concise and direct while still conveying the same meaning.
✔ "By using" adds extra words without adding significant meaning, making it slightly redundant in most technical writing.
✔ In technical and engineering documents, brevity and clarity are important, so "using" is the preferred choice.

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Example Comparison:

✅ "The control device generates a current command value using the relational expression between the motor current and the motor torque." (Concise, natural)
⚠ "The control device generates a current command value by using the relational expression between the motor current and the motor torque." (Wordier, but same meaning)

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Final Recommendation:

✔ Stick with "using" unless you need additional emphasis on the action of using the expression.

Would you like me to refine any other part of the sentence for better readability? 😊