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Fujitsu's MB91580 32-bit MCUs enable highly efficient electric and hybrid vehicle motor control

6/28/2011 09:11 PM EDT
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D-FlipFlop
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re: Fujitsu's MB91580 32-bit MCUs enable highly efficient electric and hybrid vehicle motor control
D-FlipFlop   10/13/2011 8:48:31 PM
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Thank you for your comments. The FPU need comes from the fact that Fujitsu uses Matlab for mathematical modeling of motor control algorithms. Matlab uses floating point data and, therefore, the integrated FPU supports best porting capability for the optimum result.

Tom.Minnich
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re: Fujitsu's MB91580 32-bit MCUs enable highly efficient electric and hybrid vehicle motor control
Tom.Minnich   7/7/2011 1:36:44 PM
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A long time ago I did trapezoidal brushless motor control. We found it useful to have some internal states that were 48bits. We also found it useful to have a parameters to cause shifts a after multiplies. So in some respects we were getting close to a floating point implementation some twenty years ago. I am not sure if I have proved or disproved your point. Best Regards Tom M.

DrFPGA
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re: Fujitsu's MB91580 32-bit MCUs enable highly efficient electric and hybrid vehicle motor control
DrFPGA   7/2/2011 8:00:52 PM
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Do you really need floating point for motor control? Wow...

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