数字信号控制器改善了汽车电子中马达的控制性能

发布时间:2007/4/23 0:00:00 访问次数:460

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摘要:数字信号控制器(DSC)在单片上组合了微控制器和DSP的功能,能成功用于汽车电子中的直流无刷电机(BLDC)的控制.文章包括了采用BLDC马达的好处,DSC的主要特性和性能以及为什么DSC很适合于马达控制应用等方面的内容.

DSCs boost automotive electric motor CONTROL
Digital signal CONTROLlers combine microCONTROLler and DSP functionality on-chip for automotive brushless DC (BLDC) motor applications
By Willie Fitzgerald, MICROCHIP Technology

Mechanically actuated automotive systems, such as power steering and fuel and water pumps, are being replaced with systems that utilize electric motor technology. Consequently, the presence of semiconductors in automobiles is increasing geometrically, in part due to automotive systems developers' desire for electronic motor CONTROL to address consumer requirements for safer, more efficient cars.

One contingent of the synchronous motor group, brushless direct current (BLDC) motors, are ideal for automotive applications that continuously rotate, such as pumps, cooling fans, and stepper motors. BLDCs equip positioning systems with start and stop functions where high reliability is required.

Furthermore, the electronic CONTROL that BLDC motors offer is critical to statutory vehicle requirements, including energy-savings, reduced environmental and emissions impact, and the creation of safer vehicles. BLDC motors are also useful for variable-speed applications where space is tight, as in fuel pump CONTROL and electronic/electric power steering. In these types of applications, electronic CONTROL is essential because of the need for fault diagnostics and wide temperature and voltage operational ranges.

The embedded processor is a critical tool for automotive system designers as they address the increasing needs and demands of today's driver. The increased use of electronic CONTROLs enables automotive system designers to meet these needs, while meeting their own requirements to develop low-cost, low-noise, high-accuracy systems with faster time-to-market.

A multitude of embedded-processor soluti

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数字信号控制器改善了汽车电子中马达的控制性能

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数字信号控制器改善了汽车电子中马达的控制性能

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