Title:
DEVICE AND METHOD FOR CONTROLLING PRIME MOVER
Document Type and Number:
WIPO Patent Application WO/2004/022380
Kind Code:
A1
Abstract:
A method of controlling a prime mover, comprising the steps of, when the angular acceleration (&agr ) of the rotating shaft of a motor connected to a drive shaft exceeds a threshold (&agr slip) showing a slip, limiting the torque of the motor by setting an upper torque limit value (Tmax) by using a map having such a relation that the larger the angular acceleration (&agr ) becomes, the smaller the upper toque limit value (Tmax) becomes so that the upper torque limit value (Tmax) is kept at a value obtained when the angular acceleration (&agr ) becomes a peak due to the slip, calculating the time integral of the angular acceleration (&agr ) in an integration period from a time when the angular acceleration (&agr ) exceeds the threshold (&agr slip) and a time when the angular acceleration (&agr ) lowers below the threshold (&agr slip) by the limitation of the torque of the motor, and when the slip can be deemed to be converged by the limitation of the torque of the motor, returning the torque limited by the upper torque limit value (Tmax) at the time of the peak of the angular acceleration (&agr ) by using the upper torque limit value calculated based on the results of the integration calculation of the angular acceleration (&agr ).
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Inventors:
HOMMI AKIRA (JP)
HAMAJIMA KIYOTAKA (JP)
NADA MITSUHIRO (JP)
HAMAJIMA KIYOTAKA (JP)
NADA MITSUHIRO (JP)
Application Number:
PCT/JP2003/008592
Publication Date:
March 18, 2004
Filing Date:
July 07, 2003
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
HOMMI AKIRA (JP)
HAMAJIMA KIYOTAKA (JP)
NADA MITSUHIRO (JP)
HOMMI AKIRA (JP)
HAMAJIMA KIYOTAKA (JP)
NADA MITSUHIRO (JP)
International Classes:
B60K6/445; B60K6/448; B60L15/28; B60K6/54; B60K28/16; B60L3/10; B60L15/10; B60L50/16; B60W10/06; B60W10/08; B60W20/00; F02D41/14; F02D11/10; (IPC1-7): B60L15/20; F02D29/02
Foreign References:
| JPS5833902A | 1983-02-28 | |||
| JP2000134714A | 2000-05-12 | |||
| JPS6260402A | 1987-03-17 | |||
| JPH08182119A | 1996-07-12 |
Other References:
See also references of EP 1552977A4
Attorney, Agent or Firm:
ITEC INTERNATIONAL PATENT FIRM (9-26 Sakae 2-chome, Naka-k, Nagoya-shi Aichi, JP)
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