The design permits fast prototyping with scalable powertrains, supporting hub and mid-drive programs, a number of motor varieties, and security options for environment friendly growth.
The e-scooter traction motor management reference design from Microchip is a dual-board, scalable design for fast prototyping, made for hub motor and mid-drive electrical powertrains in two- and three-wheelers. The 48V, 6kW, 3-phase converter drives Everlasting Magnet Synchronous Machines (PMSMs) and Asynchronous Induction Machines (ACIMs), offering the torque and velocity wanted for contemporary riders. The controller has a number of place sensor interfaces, making it a flexible choice for mid-drive and hub-motor programs.
The design enhances effectivity by using superior battery and microcontroller know-how for superior efficiency. It helps the eco-friendly transition from gasoline-powered to electrical two-wheelers, decreasing environmental affect. Superior motor management incorporates field-oriented management for optimum operation of 3-phase PMSMs, IPMSMs, BLDC, and ACIMs, guaranteeing improved motor efficiency. Security and comfort are prioritized, that includes a number of security options and communication protocols for added reliability. Moreover, the design helps speedy prototyping of e-scooters with 48V batteries and as much as 6kW motors, making it appropriate for fast growth.
The reference design helps hub and mid-drive designs for two- and three-wheeler electrical powertrains. It’s constructed to satisfy the dynamic wants of recent e-scooters, specializing in security, reliability, and efficiency. This design hastens growth by utilizing our parts and following strict security and operational requirements. It permits for integrating improvements and creating distinctive and differentiated merchandise.
The system options sensor-based Subject-Oriented Management (FOC) to ship peak torque and velocity with optimum effectivity. It helps versatile efficiency with four-quadrant operation, enabling motoring and regenerative braking in each instructions. Communication protocols embody remoted UART and CAN interfaces for monitoring and firmware updates. Complete safety is supplied with dynamic torque limits and thermal safety for the controller and motor. Moreover, it presents a number of operation modes, together with eco, sports activities, torque, and cruise management.
The {hardware} is designed to handle 3 kW steady and 6 kW peak energy, supporting 48V DC nominal voltage with present capacities of 65A steady and 125A peak. It’s suitable with Corridor and SSI-based AM4096 sensors and presents choices for inductive, encoder, or resolver suggestions for rotor place sensing. The sturdy design consists of convection cooling, IP65 ingress safety, and a compact, light-weight construct for simple integration. Dynamic torque limiting adjusts most present based mostly on safety triggers similar to thermal, voltage, or velocity situations, guaranteeing protected operation by stopping overcurrent. It additionally options complete security mechanisms, together with voltage, thermal, and velocity protections and extra safeguards for stall, throttle, and sensor malfunctions, enhancing reliability.
The reference design fits engineers trying to speed up e-scooter growth, providing an adaptable platform that meets trendy calls for for efficiency, security, and effectivity in electrical powertrains.
Microchip has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) structure, and extra. The corporate’s web site has further information concerning the reference design. To learn extra about this reference design, click on right here.
