公开(公告)号：US20220294368A1

公开(公告)日：2022-09-15

申请号：US17695663

申请日：2022-03-15

Applicant: Tula eTechnology, Inc.

Inventor： Andrew W. Phillips ,  Matthew A. Younkins ,  Paul Carvell ,  John M. Fuerst

IPC: H02P6/10

Abstract: A method of controlling an electric motor includes receiving a duty cycle for the electric motor for delivering a target torque from the electric motor, generating a pulse train, and pulsing the electric motor with the generated pulse train. Generating the pulse train being at least partially based on the received duty cycle. The generated pulse train optimized to improve at least one of noise, vibration, or harshness of the electric motor when compared to a constant pulse frequency.

公开(公告)号：US12244250B2

公开(公告)日：2025-03-04

申请号：US18306862

申请日：2023-04-25

Applicant: Tula eTechnology, Inc.

Inventor： Andrew W. Phillips

IPC: H02P21/00 ,  H02P21/08 ,  H02P21/10

Abstract: A control system for an electric machine, wherein the electric machine has a maximum bus value (Vbus) is provided. The control system is configured to determine a feedforward vector (VFF), determine a feedback vector (VFB), compare a magnitude of a sum of the feedforward vector and feedback vector (|VFF+VFB|) and the maximum bus value (Vbus), when |VFF+VFB|≤Vbus providing a control vector of VFF+VFB to the electric machine, and when |VFF+VFB|>Vbus providing a control vector of VFF+k(VFB) to the electric machine, where k is a scalar value between 0 and 1 inclusive where |VFF+k(VFB)|=Vbus.

公开(公告)号：US20230268852A1

公开(公告)日：2023-08-24

申请号：US18138439

申请日：2023-04-24

Applicant: Tula eTechnology, Inc.

Inventor： Andrew W. Phillips ,  Matthew A. Younkins ,  Paul Carvell ,  John M. Fuerst

IPC: H02P6/10

CPC classification number: H02P6/10 ,  H02P2205/05 ,  H02P2101/45

Abstract: A method of controlling an electric motor includes receiving a duty cycle for the electric motor for delivering a target torque from the electric motor, generating a pulse train, and pulsing the electric motor with the generated pulse train. Generating the pulse train being at least partially based on the received duty cycle. The generated pulse train optimized to improve at least one of noise, vibration, or harshness of the electric motor when compared to a constant pulse frequency.

公开(公告)号：US11637513B2

公开(公告)日：2023-04-25

申请号：US17695663

申请日：2022-03-15

Applicant: Tula eTechnology, Inc.

Inventor： Andrew W. Phillips ,  Matthew A. Younkins ,  Paul Carvell ,  John M. Fuerst

IPC: H02P6/10 ,  H02P101/45

Abstract: A method of controlling an electric motor includes receiving a duty cycle for the electric motor for delivering a target torque from the electric motor, generating a pulse train, and pulsing the electric motor with the generated pulse train. Generating the pulse train being at least partially based on the received duty cycle. The generated pulse train optimized to improve at least one of noise, vibration, or harshness of the electric motor when compared to a constant pulse frequency.