Title:
MULTIPLE MOTOR DRIVE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/030423
Kind Code:
A1
Abstract:
A polyphase inverter circuit (68) and an H-bridge circuit (671) form an integrated power conversion circuit (60) in which a leg is shared. A DC motor (710) has a first terminal (T1) connected to a single-phase phase current path of a polyphase motor (800) via a first DC current path (P1), and a second terminal (T2) connected to a connection point (M1) for upper and lower arm switching elements in a leg on the unshared side of the H-bridge circuit (671) via a second DC current path (P2). Sections in the first and second DC current paths (P1, P2) that are connected to the first and second terminals (T1, T2) are configured as a total of two individual paths. Noise suppression components (2, 3, 4, 5) that suppress electromagnetic noise generated by conduction are provided across the first and second DC current paths (P1, P2).
Inventors:
AMANO HARUKI (JP)
SUZUKI TAKASHI (JP)
FUJII KIYOSHI (JP)
SUZUKI TAKASHI (JP)
FUJII KIYOSHI (JP)
Application Number:
PCT/JP2021/028541
Publication Date:
February 10, 2022
Filing Date:
August 02, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02P5/50; B62D1/185; B62D1/187; B62D5/04
Domestic Patent References:
| WO2020090569A1 | 2020-05-07 | |||
| WO2019116453A1 | 2019-06-20 |
Foreign References:
| US20040012350A1 | 2004-01-22 | |||
| JP5768999B2 | 2015-08-26 | |||
| JPS5810471A | 1983-01-21 | |||
| CN102751863A | 2012-10-24 | |||
| JPH05219680A | 1993-08-27 | |||
| JPH0548326U | 1993-06-25 | |||
| JP2016185025A | 2016-10-20 |
Attorney, Agent or Firm:
HATTORI & PARTNERS (JP)
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