US 2022/0103105 A1Published application

Power detecting device and method thereof

AssigneeUniversal Scientific Industrial (Shanghai) Co., Ltd.

InventorsChih-Huang CHEN, Su-Hui WANG, Chih-Hung HUANG, Lee-Han LIN, Chien-Lin LIU

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Abstract

A power detecting device includes a vehicle driving system, a battery detecting module and a controlling module. A first stator winding and a second stator winding are synchronized and connected in parallel with each other. A first end of a first current sensor is coupled to a first-phase winding end of the first stator winding for measuring a first-phase current. A first end of a second current sensor is coupled to a second-phase winding end of the first stator winding for measuring a second-phase current. The battery detecting module is coupled to a first power supply for measuring a current signal and a voltage signal. A controller generates a first power according to the current signal and the voltage signal and generates a second power according to a plurality of data from a database. The controller compares the first power with the second power to generate a detecting result.

Claims13

Dependent claims

A power detecting device, comprising:

a vehicle driving system driven by a first power supply, and comprising:
a three-phase motor comprising a first stator winding and a second stator winding, wherein the first stator winding is connected in parallel to the second stator winding, the first stator winding and the second stator winding are synchronized with each other, and each of the first stator winding and the second stator winding comprises a first-phase winding end, a second-phase winding end and a third-phase winding end;
a first current sensor having a first end and a second end, wherein the first end of the first current sensor is coupled to the first-phase winding end of the first stator winding, and the first current sensor is configured to measure a first-phase current of the first stator winding;
a second current sensor having a first end and a second end, wherein the first end of the second current sensor is coupled to the second-phase winding end of the first stator winding, and the second current sensor is configured to measure a second-phase current of the first stator winding;
a first power module electrically connected to the first power supply, the second end of the first current sensor, the second end of the second current sensor and the third-phase winding end of the first stator winding;
and
a second power module connected in parallel to the first power module and electrically connected to the first power supply, and the first-phase winding end, the second-phase winding end and the third-phase winding end of the second stator winding;
a battery detecting module coupled to the first power supply for measuring a current signal and a voltage signal of the first power supply;
and
a controlling module coupled to the battery detecting module and comprising a controller and a database, wherein the controller receives the current signal and the voltage signal and generates a first power according to the current signal and the voltage signal;
wherein the database comprises a plurality of data of the three-phase motor, and the controller generates a second power according to the data;
wherein the controller compares the first power with the second power to generate a detecting result.

9 more elements

A power detecting method, which is configured to detect a vehicle driving system, comprising:

a providing step performed to provide a first power supply to drive the vehicle driving system, wherein the vehicle driving system comprises a three-phase motor;
a paralleling step performed to connect a first stator winding and a second stator winding of the three-phase motor in parallel, wherein the first stator winding and the second stator winding are synchronized with each other, and each of the first stator winding and the second stator winding comprises a first-phase winding end, a second-phase winding end and a third-phase winding end;
a battery measuring step performed to drive a battery detecting module to measure a current signal and a voltage signal of the first power supply;
a receiving step performed to drive a controlling module to receive the current signal and the voltage signal, and generate a first power according to the current signal and the voltage signal, wherein the controlling module comprises a controller and a database;
a calculating step performed to drive the controller to calculate a plurality of data of the database to generate a second power;
and
a comparing step performed to drive the controller to compare the first power with the second power to generate a detecting result.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/133,663Filed 24 Dec 2020
Priority: CN 202011054080.030 Sep 2020
Published: 31 Mar 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

H02P 21/22
Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation: current control, e.g. using…
H02P 21/50
Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation: vector control arrangements…
H02P 25/22
Characterised by the circuit arrangement or by the kind of wiring: multiple windings; Windings for more than three phases
H02P 27/12
With pulse width modulation: pulsing by guiding the flux vector, current vector or voltage vector on a circle or a closed curve, e.g. for direct…