Method for providing steering assistance for an electromechanical steering system of a motor vehicle comprising a redundantly designed control device
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United States of America Patent
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Jun 11, 2024
Grant Date -
Jul 8, 2021
app pub date -
Feb 7, 2019
filing date -
Feb 7, 2019
priority date (Note) -
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Abstract
Methods for providing steering assistance for an electromechanical steering system having a redundant control unit with a primary and a secondary control path. Respective primary and secondary control paths each have a computing unit, gate driver module, and power module. The method includes detecting an applied steering torque; calculating a primary and secondary motor target torque in the primary computing unit as a function of the applied steering torque; transmitting the primary motor target torque to a primary motor controller of the primary computing unit; determining primary motor currents to operate a primary electric motor or a primary winding group of the electric motor in the primary motor controller; transferring the secondary motor target torque from the primary computing unit to a secondary motor controller and determining secondary motor currents for operation of a secondary electric motor or a secondary winding group of the electric motor.
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