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1. (WO2018011482) DEVICE FOR CONTROLLING THE HYDRAULIC PRESSURE OF A GEARBOX ACTUATOR ACCUMULATOR OF A HYBRID TRANSMISSION CHAIN OF A VEHICLE

Pub. No.:    WO/2018/011482    International Application No.:    PCT/FR2017/051636
Publication Date: Fri Jan 19 00:59:59 CET 2018 International Filing Date: Wed Jun 21 01:59:59 CEST 2017
IPC: F16H 57/04
F16H 61/00
B60K 6/48
Applicants: PSA AUTOMOBILES S.A.
Inventors: MARCHYLLIE, Alexis
HABBANI, Ridouane
TROJANI, Joseph
Title: DEVICE FOR CONTROLLING THE HYDRAULIC PRESSURE OF A GEARBOX ACTUATOR ACCUMULATOR OF A HYBRID TRANSMISSION CHAIN OF A VEHICLE
Abstract:
The invention relates to a control device (DC) provided in a vehicle (V) having a hybrid transmission chain comprising a heat engine (MT) coupled with a gearbox (BV) via a coupling member (OC) and an electric driving machine (MM). Said device (DC) comprises control means (MC) capable of operating the electric driving machine (MM) at a selected speed in order to drive a mechanical hydraulic pump (PHM) capable of increasing the pressure inside an accumulator (AH2) of the gearbox (BV), in the event of detecting a situation that requires a rapid increase of the hydraulic pressure inside the accumulator (AH2) at least until a first threshold when only the electric driving machine (MM) needs to operate.