Electricity: motive power systems – Battery-fed motor systems
Patent
1997-01-27
2000-08-22
Martin, David
Electricity: motive power systems
Battery-fed motor systems
318432, 318376, 180179, 180343, 475 5, H02P 100
Patent
active
061077615
ABSTRACT:
A drive for an electric vehicle includes by forming a drive unit 8 having a transmission by combining a single propelling motor 7 with the transmission, respectively interconnecting the drive unit 8 with propelling wheels to be a drive wheel, and separately controlling the drive units 8. Besides, traveling speed detecting means are provided on the respective drive units 8, 8, and the respective drive units are simultaneously controlled according to a revolution signal from one of the traveling speed detecting means. A method for controlling an electric vehicle by separately controlling the drive units 8, 8, making the output torque of the motor zero or minimum during the gear change, and producing again the output torque of the motor after completing the gear change.
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Fukuda Masatoshi
Ono Masao
Seto Takeshi
Shimoda Tatsuya
Uetake Akihito
Martin David
Seiko Epson Corporation
Tokyo R&D Co., Ltd.
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