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1. (WO2018083392) METHOD AND DEVICE FOR DETERMINING NEW ACTUATOR POSITIONS OF A DCT GEARBOX OF A VEHICLE

Pub. No.:    WO/2018/083392    International Application No.:    PCT/FR2017/052818
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Fri Oct 13 01:59:59 CEST 2017
IPC: F16H 61/12
F16H 61/28
F16H 61/688
Applicants: PSA AUTOMOBILES SA
Inventors: SCHAEFFER, Eric
Title: METHOD AND DEVICE FOR DETERMINING NEW ACTUATOR POSITIONS OF A DCT GEARBOX OF A VEHICLE
Abstract:
A device (DD) is intended to determine, in a vehicle, new positions of actuators (AC1-AC2) of a DCT gearbox (BV) comprising two portions (PB1-PB2) having at least one actuator (AC1) able to act on an associated synchroniser (S1) when it is placed in known positions stored in a table, corresponding with known engine torques and transmitted to the other portion. This device (DD) is suitable, in the event of detecting a problem resulting from a movement of an actuator (AC1) of one portion (PB1), for determining, in the table, the known position of this actuator (AC1) which is associated with a known engine torque corresponding to the engine torque transmitted to the other portion (PB2) during the detected problem, then for determining a difference between this known position and a position of the actuator (AC1) measured during the detected problem, and for replacing, in the table, this known position by a new position according to the difference determined.