公开(公告)号：US11043912B2

公开(公告)日：2021-06-22

申请号：US16572764

申请日：2019-09-17

申请人： Daniel R Luedtke ,  Nitinkumar Patel ,  Mustafa Mohamadian ,  Lakshmi Narayanan Srivatchan

发明人： Daniel R Luedtke ,  Nitinkumar Patel ,  Mustafa Mohamadian ,  Lakshmi Narayanan Srivatchan

IPC分类号： H02P21/20 ,  H02P21/22 ,  H02P21/18 ,  H02P6/18

摘要： A sensorless position estimation and control system and method for a permanent magnet electric motor of a powertrain system of a vehicle involve determining a reference torque to be achieved by the electric motor based on a set of vehicle operating parameters, determining a reference current magnitude to achieve the determined reference torque using a lookup table, determining current commands for the electric motor based on the determined reference current magnitude and a fixed reference current angle, injecting a high frequency voltage into a voltage control loop for the electric motor and estimating, by the controller, a position of a rotor of the electric motor thereafter, and controlling a current provided to the electric motor based on the determined current commands and the estimated rotor position.

公开(公告)号：US20200099323A1

公开(公告)日：2020-03-26

申请号：US16572764

申请日：2019-09-17

申请人： Daniel R. Luedtke ,  Nitinkumar Patel ,  Mustafa Mohamadian

发明人： Daniel R. Luedtke ,  Nitinkumar Patel ,  Mustafa Mohamadian

IPC分类号： H02P21/20 ,  H02P6/18 ,  H02P21/18 ,  H02P21/22

摘要： A sensorless position estimation and control system and method for a permanent magnet electric motor of a powertrain system of a vehicle involve determining a reference torque to be achieved by the electric motor based on a set of vehicle operating parameters, determining a reference current magnitude to achieve the determined reference torque using a lookup table, determining current commands for the electric motor based on the determined reference current magnitude and a fixed reference current angle, injecting a high frequency voltage into a voltage control loop for the electric motor and estimating, by the controller, a position of a rotor of the electric motor thereafter, and controlling a current provided to the electric motor based on the determined current commands and the estimated rotor position.

公开(公告)号：US20230019118A1

公开(公告)日：2023-01-19

申请号：US17376990

申请日：2021-07-15

申请人： Daniel R. Luedtke ,  Mustafa Mohamadian

发明人： Daniel R. Luedtke ,  Mustafa Mohamadian

IPC分类号： B60W50/12 ,  B60L58/16 ,  G06K9/62 ,  G06N3/02

摘要： A temperature estimation system and method for an electric motor of a vehicle include a set of sensors configured to measure a set of operating parameters of the electric motor including at least (i) phase current, (ii) speed, and (iii) coolant temperature and a controller configured to access a trained artificial neural network (ANN) temperature estimation model, using the trained ANN temperature estimation model with the set of electric motor operating parameters as inputs, estimate temperatures of a stator and a rotor of the electric motor, and control operation of the electric motor based on the estimated stator and rotor temperatures.