Device for detecting rotation direction and method for detecting rotation direction of motor, and motor control device
US-11128244-B2 · Sep 21, 2021 · US
wherein the position is detected using the ripple of the current caused by the commutator
wherein the position is detected using the ripple of the current caused by the commutator · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P7/0094 |
| Official title | {wherein the position is detected using the ripple of the current caused by the commutator} |
| Display label | wherein the position is detected using the ripple of the current caused by the commutator |
| Total patents | 124 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 4 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 7 |
| 2020 | 18 |
| 2021 | 10 |
| 2022 | 23 |
| 2023 | 16 |
| 2024 | 13 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for calculating motor position, inertia and rest position in sensorless brushed dc motor control systems, and for determining seat occupant weight based on motor current
US-2021167704-A1 · Jun 3, 2021 · US
Apparatus and method for obtaining information on rotation of DC commutator motor
US-10962346-B2 · Mar 30, 2021 · US
Motor module, rotation angle detector, and method for detecting failure of rotation angle detector
US-10965228-B2 · Mar 30, 2021 · US
Motor control device
US-2021075349-A1 · Mar 11, 2021 · US
Control module for adjusting flaps of a vehicle
US-2021061087-A1 · Mar 4, 2021 · US
Method and device for determining the rotational speed and the angle of rotation of a motor shaft of a mechanically commutated dc motor
US-2021044228-A1 · Feb 11, 2021 · US
Apparatus and method for estimating motor rpm in electronic brake system
US-2020333374-A1 · Oct 22, 2020 · US
Method for determining a movement of a rotor
US-2020328700-A1 · Oct 15, 2020 · US
Method and device for providing information on an annular displacement of a dc electromotor
US-2020300881-A1 · Sep 24, 2020 · US
Method and device for determining a rotation variable
US-2020295678-A1 · Sep 17, 2020 · US
Closed control device for DC brush motor, control system, and control method
US-10770995-B2 · Sep 8, 2020 · US
Image forming apparatus detecting status of motor
US-10705462-B2 · Jul 7, 2020 · US
Device for detecting rotation direction and method for detecting rotation direction of motor, and motor control device
US-2020204094-A1 · Jun 25, 2020 · US
Motor control device and current ripple detection method for DC motor
US-10693399-B2 · Jun 23, 2020 · US
Driver unit for an interior permanent magnet motor and a motor assembly using the same
US-10693407-B2 · Jun 23, 2020 · US
Ripple counting filtering and peak detection method and system
US-2020186062-A1 · Jun 11, 2020 · US
Method and apparatus for controlling safety power window
US-10637380-B2 · Apr 28, 2020 · US
Systems And Methods For Calculating Motor Position, Inertia And Rest Position In Sensorless Brushed DC Motor Control Systems
US-2020119670-A1 · Apr 16, 2020 · US
Motor module, rotation angle detector, and method for detecting failure of rotation angle detector
US-2020076336-A1 · Mar 5, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P7/0094?
- CPC H02P7/0094 is the Cooperative Patent Classification code for “wherein the position is detected using the ripple of the current caused by the commutator.”
- How many patents are filed under CPC H02P7/0094 (wherein the position is detected using the ripple of the current caused by the commutator)?
- Our database includes 124 publications tagged with this CPC code.
- Is patent activity under CPC H02P7/0094 growing?
- Publication counts under this code: 13 in 2024 vs 9 in 2025 (latest complete years).