32-bit Motor Control Microcontroller for Electric (EV) and Hybrid Electric Vehicles (HEV)

MB91580 Series

Overview

The new MB91580 series, a part of the Fujitsu FR family of 32-bit RISC microcontrollers (MCUs), offers 3-phase inverter motor control and an embedded resolver interface for electric (EV) and hybrid electric vehicles (HEV).

The MCU series offer high performance combined with optimized peripherals for electric and hybrid electric vehicles. The MB91580 series was designed to provide special features for efficient loopback control. The device offers a 12-bit Analog to Digital Converter (ADC) and a 12-bit Resolver to Digital Converter (RDC) to detect motor current and position at high speed and with high resolution. The electric angle of the revolver, which is calculated by the RDC, is latched into dedicated registers and synchronized with the three phase current detected by the ADC. Control algorithms will benefit from the floating point Unit (FPU) and will speed up vector conversion and calculations using decimal point numbers by10-15% compared to standard integer processing.

The MB91580 series feature Fujitsu's advanced Flash memory technology, including dedicated program memory and a separate work Flash for E²PROM emulation storage.

Applications

• Generic electric motor control
• HEV/EV inverter
• HEV/EV generator control

Key Features

Documentation

Product Information

• PDF Fact Sheet

Technical Backgrounder

• Sophisticated MB91580 Series MCUs Can Simplify Hybrid and Electric Vehicle Motor Control Designs (paper)

Development Tools

Development Tools

Development tools, including debuggers, evaluation boards, starter kits and compilers, are available to support the Fujitsu MB91580 series.