Explaining the issues of LFP's unique "flat discharge curve and rapid voltage drop." High-precision servo that accurately stops positioning even under power fluctuations.
In the adoption of lithium iron phosphate (LFP) batteries, many control engineers face the challenge of "the flatness of the discharge curve." LFP batteries have the characteristic of maintaining voltage even when the remaining charge is low, and they suddenly drop in voltage near their capacity limit. As a result, simple voltage monitoring can lead to control failures, such as changes in the stopping distance of AGVs or inability to stop precisely at designated positions. Alongside strict remaining charge management via BMS (CAN communication), advanced servo control capabilities are required on the motor side to "constantly correct accurate position and speed based on feedback from the encoder, regardless of voltage fluctuations." Our "CMS series (low voltage, high output coreless servo motors)" comes standard with high-resolution encoders. Even in the face of rapid voltage fluctuations specific to LFP batteries or in low voltage environments, it is a precision drive unit that promises millimeter-level accurate positioning and stable operation in conjunction with the upper controller.
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basic information
■ Key Points of LFP Voltage Characteristics and Servo Control - Positioning correction during voltage drop: Even with sudden fluctuations in battery voltage, torque and speed are corrected in real-time based on the encoder's pulse signals, preventing overruns. - Collaboration with BMS/CAN communication: High responsiveness is required to ensure smooth deceleration and safe stops of the aircraft in conjunction with the smart battery's state monitoring system. ■ Features of Low Voltage, High Output Servo Motors (CMS Series) - Equipped with high-precision encoders: Enables precise position and speed feedback control equivalent to AC servos, despite being a DC-driven motor. - Balancing high output and high responsiveness: Achieves the power to move the heavy LFP aircraft while simultaneously providing delicate control to stop precisely at designated positions. - Domestic inspection of all units from prototypes and small lots is conducted before delivery.
Price information
We have adopted a cored design using powerful neodymium magnets and established a production system for standard stock items, which allows us to offer excellent pricing and delivery times. Prices may vary depending on annual usage quantities, the number of lots, and the presence of drivers and gearheads, so if you are looking to reduce costs, please feel free to request a quote. Our sales department will do its utmost to accommodate your budget and preferences.
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Applications/Examples of results
Examples of Applications in LFP Voltage Management and Precision Control - LFP-equipped AGVs that require automatic docking to charging stations with millimeter precision - Self-driving robots (mobile manipulators) with arm joints and precision travel axes - Winding and supply devices that need to maintain a constant speed and tension unaffected by voltage fluctuations - Next-generation FA equipment that performs advanced behavior control based on CAN information from lithium batteries
Line up（7）
| Model number | overview |
|---|---|
| CMS40 | （□40 / 25W～50W / 0.12～0.16Nm） |
| CMS60 | （□60 / 100W～300W / 0.5～1.47Nm） |
| CMS80 | （□80 / 375W～750W / 1.84～3.70Nm） |
| CMS110 | （□110 / 550W～1175W / 2.50～5.76Nm） |
| CMS130 | （□130 / 525W～2400W / 2.5～14.6Nm） |
| CMS180 | （□180 / 2400W～5200W / 11.5～24.6Nm） |
| The entire series | All models are available with options for a non-excited electromagnetic brake and a planetary gear head. |
catalog（3）
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Company information
CLUW Inc. specializes in low-voltage battery-driven motors and control drivers, offering a comprehensive lineup from compact to high-power models. Our product range includes Brushless DC Motors, Battery-Driven AC Servo Motors, Geared Motors, In-Wheel Motors, and Cooling Fans. Beyond product supply, we deliver dedicated technical support—from driver selection and setup guidance to troubleshooting—ensuring seamless operational integration for our customers.
