Title:
CONTROL APPARATUS FOR ELECTRIC VEHICLE
Document Type and Number:
Japanese Patent JP3629388
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a control apparatus which prevents an erroneous detection and a detection omission in conventional cases by a method wherein, when the angular frequency of rotation of an induction machine is computed on the basis of a voltage and a current which are supplied to the induction machine, an error in the angular frequency of rotation is not increased when the operation of the induction machine is continued at a primary angular frequency of 0, a desired torque can be outputted and the primary angular frequency which is staying near 0 is detected precisely.
SOLUTION: An IM-state detection part in conventional cases is constituted of a weighting-function computing unit, an integrator and a comparator.
Inventors:
Masashi Takagi
Application Number:
JP27585899A
Publication Date:
March 16, 2005
Filing Date:
September 29, 1999
Export Citation:
Assignee:
Toyo Denki Manufacturing Co., Ltd.
International Classes:
H02P1/30; B60L9/18; H02P27/06; (IPC1-7): H02P7/63; B60L9/18; H02P1/30
Domestic Patent References:
| JP11069895A | ||||
| JP10290600A | ||||
| JP7143798A | ||||
| JP2142393A |
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