Title:
VEHICULAR TRANSMISSION CONTROL APPARATUS
Document Type and Number:
Japanese Patent JP2022049582
Kind Code:
A
Abstract:
To provide a vehicular transmission control apparatus capable of accurately determining the state of a switching mechanism shut down in a shift transition period in a vehicular transmission that is shifted by changing the switching mechanism by a shift mechanism.SOLUTION: In a case where a change amount Δθdog of an angular difference between a rotation angle θdog1 of a switching mechanism 28 that is switched to a shut-off state during a shift and a rotation angle θdog2 of a shift gear 30 reaches or exceeds a given angle α, the angle calculated from a temporal point when a rotation position of a shift barrel 40 is shifted to a neutral position PN, the shift gear where a gear-side meshing-tooth 70 that is meshed with a meshing tooth of the switching mechanism 28 is formed, it is determined that the switching mechanism 28 is switched to a shut-off state. Therefore, even in a case where a deviation occurs to a zero point of a rotation angle of a sensor that detects a rotation angle of the shift gear 30 and that of the switching mechanism 28, it is possible to accurately determine a shut-off state of the switching mechanism 28.SELECTED DRAWING: Figure 9
Inventors:
SUGIHIRA SHIGEHIRO
Application Number:
JP2020155851A
Publication Date:
March 29, 2022
Filing Date:
September 16, 2020
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F16H61/02; F16D11/10; F16H61/682; F16H63/00
Attorney, Agent or Firm:
Haruyuki Ikeda
Kojiro Ikeda
Kojiro Ikeda
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