Patents by Inventor JORGE ZAMBADA
JORGE ZAMBADA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11515822Abstract: An adaptive torque disturbance cancellation method and motor control system for rotating a load are described. The system has: (i) a speed controller for receiving a first input signal indicating a desired motor speed and, in response, for outputting a motor control signal; (ii) current sensing circuitry for sensing current through a motor that rotates in response to the speed controller; (iii) circuitry for storing, into a storage device, history data representative of the current through a motor when the motor operates to rotate the load; and (iv) circuitry for modifying the motor control signal in response to the history data.Type: GrantFiled: May 4, 2020Date of Patent: November 29, 2022Assignee: Texas Instruments IncorporatedInventors: David L. Wilson, Jorge Zambada Tinoco, David Patrick Magee
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Publication number: 20200336093Abstract: An adaptive torque disturbance cancellation method and motor control system for rotating a load are described. The system has: (i) a speed controller for receiving a first input signal indicating a desired motor speed and, in response, for outputting a motor control signal; (ii) current sensing circuitry for sensing current through a motor that rotates in response to the speed controller; (iii) circuitry for storing, into a storage device, history data representative of the current through a motor when the motor operates to rotate the load; and (iv) circuitry for modifying the motor control signal in response to the history data.Type: ApplicationFiled: May 4, 2020Publication date: October 22, 2020Inventors: David L. Wilson, Jorge Zambada Tinoco, David Patrick Magee
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Patent number: 10666180Abstract: An adaptive torque disturbance cancellation method and motor control system for rotating a load are described. The system has: (i) a speed controller for receiving a first input signal indicating a desired motor speed and, in response, for outputting a motor control signal; (ii) current sensing circuitry for sensing current through a motor that rotates in response to the speed controller; (iii) circuitry for storing, into a storage device, history data representative of the current through a motor when the motor operates to rotate the load; and (iv) circuitry for modifying the motor control signal in response to the history data.Type: GrantFiled: July 22, 2016Date of Patent: May 26, 2020Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: David L. Wilson, Jorge Zambada Tinoco, David Patrick Magee
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Patent number: 10389285Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: GrantFiled: November 6, 2017Date of Patent: August 20, 2019Assignee: Texas Instruments IncorporatedInventors: David Patrick Magee, Andre Veltman, Jorge Zambada
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Publication number: 20180076749Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: ApplicationFiled: November 6, 2017Publication date: March 15, 2018Inventors: David Patrick Magee, Andre Veltman, Jorge Zambada
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Patent number: 9813005Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: GrantFiled: July 1, 2016Date of Patent: November 7, 2017Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: David Patrick Magee, Andre Veltman, Jorge Zambada
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Patent number: 9692336Abstract: A motor controller architecture and method of operating the same. The motor controller asynchronously generates multiphase control signals for a multi-phase electric motor, relative to the estimation of various state parameters used in generating those control signals. Latency between the state estimation task and the control signal generation task is addressed by storing a timestamp with each input data sample from the sensors, and maintaining that timestamp with the output data from state estimation. Knowledge of the timestamp value allows the control task to update the state estimates to compensate for the time difference between the input data sample and the current sampling period.Type: GrantFiled: October 9, 2015Date of Patent: June 27, 2017Assignee: TEXAS INSTRUMENTS INCOPORATEDInventors: David Patrick Magee, Jorge Zambada
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Publication number: 20170104430Abstract: A motor controller architecture and method of operating the same. The motor controller asynchronously generates multiphase control signals for a multi-phase electric motor, relative to the estimation of various state parameters used in generating those control signals. Latency between the state estimation task and the control signal generation task is addressed by storing a timestamp with each input data sample from the sensors, and maintaining that timestamp with the output data from state estimation. Knowledge of the timestamp value allows the control task to update the state estimates to compensate for the time difference between the input data sample and the current sampling period.Type: ApplicationFiled: October 9, 2015Publication date: April 13, 2017Inventors: David Patrick Magee, Jorge Zambada
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Publication number: 20170025979Abstract: An adaptive torque disturbance cancellation method and motor control system for rotating a load are described. The system has: (i) a speed controller for receiving a first input signal indicating a desired motor speed and, in response, for outputting a motor control signal; (ii) current sensing circuitry for sensing current through a motor that rotates in response to the speed controller; (iii) circuitry for storing, into a storage device, history data representative of the current through a motor when the motor operates to rotate the load; and (iv) circuitry for modifying the motor control signal in response to the history data.Type: ApplicationFiled: July 22, 2016Publication date: January 26, 2017Inventors: David L. Wilson, Jorge Zambada Tinoco, David Patrick Magee
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Publication number: 20160315572Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: ApplicationFiled: July 1, 2016Publication date: October 27, 2016Inventors: David Patrick Magee, Andre Veltman, Jorge Zambada
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Publication number: 20160294314Abstract: A motor controller architecture and method of operating the same. The motor controller includes a function for selecting a fractional delay compensation value to be applied in the estimate of rotor position for which pulse-width-modulated drive signals are to be applied to a multi-phase electric motor. The motor is operated over iterated trial values of fractional delay time, while monitoring a magnitude of a feedback signal in the control loop. The selected fractional delay time is that having a lowest magnitude of the monitored feedback signal.Type: ApplicationFiled: March 31, 2015Publication date: October 6, 2016Inventors: Jorge Zambada, David Patrick Magee
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Patent number: 9413282Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: GrantFiled: September 15, 2014Date of Patent: August 9, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: David Patrick Magee, André Veltman, Jorge Zambada
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Publication number: 20150097500Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: ApplicationFiled: September 15, 2014Publication date: April 9, 2015Inventors: DAVID PATRICK MAGEE, ANDRÉ VELTMAN, JORGE ZAMBADA