Title:
CONTROL APPARATUS FOR POWER TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JP2017044264
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a control apparatus for a power transmission device, the apparatus capable of improving a power transmission efficiency by setting, for each gear pair, permissible ranges of an offsetting error and a parallelism error with a simple structure, and suppressing deterioration in NVH characteristics.SOLUTION: A control apparatus for a power transmission device has adjustment means that includes: a shift sensor for detecting an offsetting error and a parallelism error of one rotation shaft relative to the other rotation shaft; a shaft portion of the one rotation shaft configured to increase rigidity with a temperature rise; and heating-means, disposed in the one rotation shaft, for heating the shaft portion to increase the rigidity of the one rotation shaft. Further, for each gear pair, thresholds for the offsetting error and the parallelism error are set. In a case where the offsetting error or the parallelism error is larger than a threshold corresponding to a gear pair that transmits torque, the heating-means heats the one rotation shaft to increase the rigidity (steps S1, S2, S3).SELECTED DRAWING: Figure 1
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Inventors:
ISHIBASHI MASAYUKI
Application Number:
JP2015166961A
Publication Date:
March 02, 2017
Filing Date:
August 26, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F16H1/06; F16H3/089
Attorney, Agent or Firm:
Watanabe strong