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32bit MCU supports driving motor control

Posted: 26 May 2011 ?? ?Print Version ?Bookmark and Share

Keywords:motor control? electrical vehicles? hybrid vehicles?

Fujitsu Semiconductor Asia Pte Ltd unveils three products from their MB91580 series which contain driving motor control function for Electrical Vehicles (EV) and Hybrid Vehicles (HV) as part of the high-performance 32bit FLASH embedded microcontroller (MCU) FR family.

The MB91580 series supports the demand for an automotive driving motor control MCU with a dedicated embedded resolver sensor interface to control the three-phase motor used in EVs and HVs. This is first time that Fujitsu Semiconductor is delivering driving motor control LSI for eco-cars and supporting demand from the market.

Nowadays, the interest in protecting and preserving the Earth's environment is increasing. Likewise, the demand for eco-cars such as electric vehicles and hybrid vehicles are increasing along with calls for the reduction of exhaust gases that adversely affect air quality. To further drive the adoption of eco-vehicles, Fujitsu foresees that three innovations, namely the improved mobility of motors, reduction in energy consumption, and system cost reduction will be required.

The 32bit MCU MB91580 series for driving motor control will be able to support such demand quickly and has already begun shipping since the end of April 2011.

The MB91580 series contains suitable CPU core and peripherals for EV/HV motor control. The dedicated interface circuit in the resolver used for the EV/HV driving motor is embedded in order to achieve system cost reduction as well as contribute to improving motor mobility and reduce energy consumption by realizing a high torque responsive control process which is required for the EV/HV driving motor.

An Exclusive Floating Point Unit (FPU) is included in the 160DMIPS high performance CPU. The FPU enables the CPU to process vector conversion and PID control calculation using the information generated by the built-in peripherals. This feature contributes to improved motor mobility and at the same time reduces power consumption by increasing the speed of feedback control. In addition, by holding down the CPU load depending on motor control, control over systems other than the power motor (DC/DC converter and battery management, etc.) is enabled, and this contributes to the total cost reduction by system integration.

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