Title:
ELECTRIC COMPRESSOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/140203
Kind Code:
A1
Abstract:
[Problem] To suppress any reduction in product service life and any breakdown while considering the startup properties of an electric compressor during initial running-in. [Solution] This electric compressor control device executes a sensorless mode for detecting, without a sensor, the position of a rotor in an electric motor provided as a motive power source of an electric compressor and controlling energization of a stator coil. During execution of the sensorless mode, the control device monitors whether or not an operation for breaking in the electric compressor is completed on the basis of the time during which driving of the electric motor is effective in the initial running-in of the electric compressor. When a startup mode is executed as a stage prior to the sensorless mode, the control device sets a startup current ISTART to a high current value IH before it is assessed that the breaking-in operation is completed, and to a low current value IL after it is assessed that the breaking-in operation is completed.
Inventors:
KONDO TAKASHI (JP)
Application Number:
PCT/JP2023/000930
Publication Date:
July 27, 2023
Filing Date:
January 16, 2023
Export Citation:
Assignee:
SANDEN CORP (JP)
International Classes:
H02P6/18; H02P6/21
Domestic Patent References:
| WO2013191183A1 | 2013-12-27 |
Foreign References:
| JP2001204192A | 2001-07-27 | |||
| JP2008104337A | 2008-05-01 | |||
| JPH01232190A | 1989-09-18 |
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