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Technical Paper

Seamless Solution for Electronic Power Steering

2006-04-03
2006-01-0593
The number of safety critical automotive applications employing high current brushless motors continues to increase (Steering, Braking, and Transmission etc.). There are many benefits when moving from traditional solutions to electrically actuated solutions. Some of these benefits can include increased fuel economy, simplified vehicle installation and packaging, increased feature set, improved safety and/or convenience, simplified unit assembly and modular testability prior as well as during vehicle manufacturing. The trend to implement brushless motors in these applications (which require electronically controlled commutation) has also brought with it the need for powerful inverters, which primarily consist of Power MOSFETs and MOSFET Driver ICs. This paper reviews the challenges associated with the design of safety critical electronic systems which combine sensing, control and actuation.
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