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Title:
DIAGNOSING DEVICE, CONTROL DEVICE, AND POWER TRAIN OF AUTOMOBILE
Document Type and Number:
Japanese Patent JP2005247234
Kind Code:
A
Abstract:

To speedily detect an abnormality and inform an occupant of it by detecting actual energy outputted from a predetermined element (engine, motor, torque converter, clutch, transmission, final speed reduction gear, or the like), and by performing abnormal diagnosis of the element, in an automobile power train.

This diagnosing device comprises an input section for inputting a signal of a torque sensor 7 for detecting an output torque of the element, and an output parameter determining section for determining an output parameter of the element based on the signal from the input section. The diagnosing device performs the abnormal diagnosis of the element according to the output parameter determined in the output parameter determining section. The output parameter is compared with a reference output parameter of the element determined using a means different from the torque sensor, thereby performing the abnormal diagnosis of the element.


Inventors:
SAKAMOTO HIROSHI
MINOWA TOSHIMICHI
OKADA TAKASHI
OCHI TATSUYA
Application Number:
JP2004063329A
Publication Date:
September 15, 2005
Filing Date:
March 08, 2004
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
G01M13/00; B60W10/00; F16D28/00; F16D48/06; F16H61/12; F16H63/50; G01M17/007; F16H59/16; F16H59/74; (IPC1-7): B60K41/00; F16D28/00; F16H61/12; G01M13/00; G01M17/007
Attorney, Agent or Firm:
Yasuo Sakuta
Manabu Inoue