发明名称 |
ELECTRIC MOTOR TORQUE CONTROL |
摘要 |
A vehicle includes one or more inverter-fed electric machines such as permanent magnet synchronous motors. In response to a torque request, a controller issues commands to an inverter calculated to cause the motor to produce the requested torque. A method of operating the inverter may determine the commands based on the ratio of rotor speed to inverter input voltage, reducing the approximation error associated with multi-dimensional lookup tables. When the speed and voltage vary while maintaining a constant ratio and constant torque request, the issued commands produce a winding current in the electrical machine with constant direct and quadrature components. |
申请公布号 |
US2014070738(A1) |
申请公布日期 |
2014.03.13 |
申请号 |
US201213606992 |
申请日期 |
2012.09.07 |
申请人 |
LUEDTKE DANIEL;DEGNER MICHAEL W.;FORD GLOBAL TECHNOLOGIES, LLC |
发明人 |
LUEDTKE DANIEL;DEGNER MICHAEL W. |
分类号 |
H02P21/14 |
主分类号 |
H02P21/14 |
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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