Title:
COMPLETE TRACTION GEAR FOR VEHICLE, IN PARTICULAR, RAILWAY VEHICLE
Document Type and Number:
Japanese Patent JP2017229228
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve safety of a traction gear against operation abnormality.SOLUTION: A traction gear (10) includes two motors (18), and an inverter (20) for supplying electric power to two motors (18). The traction gear includes a planetary gear train (22) for each motor (18), and motor drive control means (34) which can rotationally drive a corresponding outer planetary gear (26) for one motor (18). Means (40) for controlling each control means can control a rotational speed of the corresponding outer planetary gear (26) according to a rotational speed and/or an angular position of each output shaft (19). A releasable engagement means (44) is located between each motor drive control means (34) and the corresponding outer planetary gear (26). Control means (46) can maintain the engagement means (44) in a clutch state in the case that any abnormality is not detected, and shifts the engagement means (44) to a non-engagement configuration in the case that abnormality is detected.SELECTED DRAWING: Figure 1
Inventors:
FRANCIS MORTREUX
Application Number:
JP2017115633A
Publication Date:
December 28, 2017
Filing Date:
June 13, 2017
Export Citation:
Assignee:
ALSTOM TRANSP TECHNOLGIES
International Classes:
B60L9/18; B60K23/00; B60L15/20; B61C9/38; F16H3/66; F16H3/72
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara