Title:
ELECTRIC MOTOR VEHICLE DRIVE SYSTEM
Document Type and Number:
Japanese Patent JP3328509
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an inexpensive electric motor vehicle drive system rich in reliability such as damage prevention of an inverter, even when a motor is driven at a permissible maximum rotational speed or more, in an electric motor vehicle with the synchronous motor serving as the drive source.
SOLUTION: A peak value of maximum induced voltage of a synchronous motor 16 in a permissible maximum rotational speed of an electric motor vehicle is set at permissible voltage or less of a smoothing capacitor 18 of an inverter 14 and permissible maximum voltage or less of a power switching element constituting the inverter 14. That is, letting VCmax be the permissible voltage of the smoothing capacitor 18, the synchronous motor 16 is constituted so as to satisfy a relation V0max≤VCmax where V0max is at a permissible maximum rotational speed N2 of the synchronous motor 16.
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Inventors:
Ohara Sanshiro
Hiroshi Katada
Suetaro Shibukawa
Nobunori Matsudaira
Shotaro Naito
Hiroshi Katada
Suetaro Shibukawa
Nobunori Matsudaira
Shotaro Naito
Application Number:
JP13493996A
Publication Date:
September 24, 2002
Filing Date:
May 29, 1996
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H02J7/00; B60L3/00; B60L11/18; B60L15/08; H02M7/48; (IPC1-7): B60L3/00; H02J7/00; H02M7/48
Domestic Patent References:
| JP8103001A | ||||
| JP638550A | ||||
| JP746720A |
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)