Method for manufacturing automatic transmission

摘要

It is intended to make it possible to, even in a situation where a program and/or data to be written to a memory device of an electronic control unit provided in an automatic transmission become different in content, depending on a specification of a vehicle to be mounted with the automatic transmission, manage the electronic control unit while distinguishing only by a difference in hardware configurations thereof. Disclosed is a method which comprises: an assembling step (10) of assembling an automatic transmission, wherein the assembling step includes installing an electronic control unit in the automatic transmission; and a testing step (30) of testing the automatic transmission after completion of assembling in the assembling step (10), wherein a writing step (20) is performed after the assembling step (10) and before the testing step (30), to write vehicle-dependent information consisting of a program and/or data depending on a specification of a vehicle to be mounted with the automatic transmission, to a memory device of the electronic control unit installed in the automatic transmission.

主权项

1. A method of manufacturing an automatic transmission having a transmission casing in which an electronic control unit for controlling a frictional engagement element is installed, comprising:
an assembling step of assembling an automatic transmission, the assembling step including installing the electronic control unit in the automatic transmission; a testing step of testing the automatic transmission after completion of assembling in the assembling step; and a writing step of writing vehicle-dependent information consisting of a program and/or data depending on a specification of a vehicle to be mounted with the automatic transmission, to a memory device of the electronic control unit installed in the automatic transmission, the writing step being performed after the assembling step and before the testing step.