发明名称 |
DRIVE TRANSMITTER OF MOTOR DRIVEN VEHICLE |
摘要 |
<p>A drivetrain (48) for an electric passenger vehicle (10) includes a battery (40) for energizing a single-phase A.C. traction motor (18) which drives a ground engaging wheel (12) through a multispeed transaxle (20). The motor is characterized by an external ferrite permanent magnet rotor (26) drivingly engaging an input shaft (32) of the transaxle. The motor is controlled by an inverter circuit (44) and a control circuit (46) which generates switch command signals to reciprocally actuate power transistors (56 and 62) within the inverter circuit as a function of operator demand, rotor position and rotor speed. The control circuit includes a motor positioning circuit (442) which toggles the motor current when the rotor speed falls below a predetermined level to dither the rotor about a park position for a predetermined period. A prestart rotor positioner (224) is provided to mechanically lock the rotor in its park position to ensure the availability of a high electrical starting torque. Finally, a minimum starting speed circuit (599) provides for motor startup from other than normal rotor park position.</p> |
申请公布号 |
JPS6098805(A) |
申请公布日期 |
1985.06.01 |
申请号 |
JP19840205711 |
申请日期 |
1984.10.02 |
申请人 |
EATON CORP |
发明人 |
ARAN ROI GEERU;DEBITSUDO JIEIMUZU GURITSUTAA |
分类号 |
B60K1/00;B60L9/18;B60L11/18 |
主分类号 |
B60K1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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