Motor control unit assembly

WO2026133365A1PCT designated stage Publication Date: 2026-06-25BAJAJ AUTO TECHNOLOGY LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
BAJAJ AUTO TECHNOLOGY LTD
Filing Date
2025-12-18
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Conventional motor control systems face challenges with complex architectures, increased wiring requirements, compatibility issues, scalability limitations, space constraints, and heat dissipation problems due to separate motor and motor control units, leading to inefficiencies and reliability concerns.

Method used

An integrated motor and MCU unit is developed, where the MCU is mounted within the motor housing, with a single PCB dividing into power and control sections, and thermal management mechanisms to dissipate heat, ensuring efficient heat transfer and reduced wiring complexity.

Benefits of technology

The integrated solution simplifies design and assembly, enhances system performance, improves thermal management, reduces vibration, and ensures reliable operation with seamless communication, making it suitable for compact vehicles and diverse applications.

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Abstract

A motor control unit (MCU) assembly (120) comprising a motor (101) configured to generate power; an MCU (201) configured for controlling the operation of the motor (101); transmission means facilitating power flow and control between the motor (101) and the MCU (201) for coordinated control; wherein the MCU (201) mounted on the motor (101) is enclosed in a single motor housing and wherein the MCU (201) comprises a power or inverter section (301) and a control section (302) provided on a single printed circuit board (602); wherein; the power or inverter section (301) having plurality of power components and configured to convert and regulate the input and output power to the necessary voltage and current levels and the control section (302) comprising plurality of control components configured to generate signals to regulate motor operation.
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