Title:
DEVICE FOR PREVENTING FALSE LOCK
Document Type and Number:
WIPO Patent Application WO/2010/103642
Kind Code:
A1
Abstract:
Disclosed is a device for preventing false lock of a rotary element in a hybrid vehicle which can achieve a fixed speed change mode by locking the rotary element. A hybrid driver (10) having an engine (200), MG1, and MG2 and functioning as a power unit of a hybrid vehicle (1) is equipped with a cam lock type brake mechanism (700) which can control the MG1 between a lock state and a non-lock state by switching the state of a sun gear (S1) between a lock state and a non-lock state. In false lock prevention control, an ECU (100) calculates the absolute value MG1 angular acceleration (Dωg) of the angular acceleration of a motor generator (MG1) based on an MG1 rotation speed (Nmg1), and judges that the sun gear (S1) is in a false lock state if the MG1 angular acceleration (Dωg) is larger than a judgment reference value (Dωgth).
Inventors:
MUTA KOICHIRO (JP)
OGURA HIROYUKI (JP)
MAGARIDA NAOFUMI (JP)
OGURA HIROYUKI (JP)
MAGARIDA NAOFUMI (JP)
Application Number:
PCT/JP2009/054761
Publication Date:
September 16, 2010
Filing Date:
March 12, 2009
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
MUTA KOICHIRO (JP)
OGURA HIROYUKI (JP)
MAGARIDA NAOFUMI (JP)
MUTA KOICHIRO (JP)
OGURA HIROYUKI (JP)
MAGARIDA NAOFUMI (JP)
International Classes:
B60K6/365; B60K6/445; B60L50/16; B60W10/06; B60W10/08; B60W10/10; B60W20/00; F02D29/02; F16H61/12; F16H63/40; F16H59/38; F16H59/48
Foreign References:
| JP2007001451A | 2007-01-11 | |||
| JP2009029394A | 2009-02-12 | |||
| JPH09109694A | 1997-04-28 | |||
| JP2006022844A | 2006-01-26 | |||
| JP2004345527A | 2004-12-09 | |||
| JP2005304229A | 2005-10-27 |
Other References:
See also references of EP 2407363A4
Attorney, Agent or Firm:
EGAMI, Tatsuo et al. (JP)
Tatsuo Egami (JP)
Tatsuo Egami (JP)
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