公开(公告)号：US20150276043A1

公开(公告)日：2015-10-01

申请号：US14441281

申请日：2013-10-14

Applicant: RENAULT s.a.s.

Inventor： Vincent Girardot ,  Damien Coulon ,  Mathieu Leleu

IPC: F16H57/04

CPC classification number: F16H57/0483 ,  F16H48/08 ,  F16H57/0421 ,  F16H57/0423 ,  F16H57/0457

Abstract: A motor vehicle differential including a housing holding a differential mechanism including a ring gear attached to a cage of planetary gears, the housing including a first half-housing that is configured to accommodate the cage of gears and at least a part of the ring gear, and a second half-housing closing the first half-housing, the first half-housing including a chamber that accommodates at least a part of the ring gear, and that includes at least a main transverse wall adjacent to a transverse face of the ring gear. The first half-housing includes a mechanism recovering the oil splashed onto the wall and a mechanism redirecting the recovered oil to the cage of planetary gears.

Abstract translation: 一种机动车辆差速器，包括保持包括附接到行星齿轮架的齿圈的差动机构的壳体，所述壳体包括构造成容纳所述齿轮笼和所述齿圈的至少一部分的第一半壳体， 以及封闭所述第一半壳体的第二半壳体，所述第一半壳体包括容纳所述环形齿轮的至少一部分的腔室，并且至少包括与所述环形齿轮的横向面相邻的主横向壁 。 第一半壳体包括回收溅在壁上的油的机构和将回收的油重新定向到行星齿轮笼的机构。

公开(公告)号：US11873808B2

公开(公告)日：2024-01-16

申请号：US17432309

申请日：2020-01-28

Applicant: RENAULT s.a.s.

Inventor： Mathieu Leleu

IPC: F04B49/02 ,  F04B17/03 ,  F04B49/20 ,  F16H57/04

CPC classification number: F04B49/02 ,  F04B17/03 ,  F04B49/20 ,  F16H57/0447 ,  F04B2201/1201 ,  F04B2201/1202 ,  F04B2203/0201 ,  F04B2203/0209 ,  F04B2205/09

Abstract: A method controls the start-up of an oil pump of a gearbox by a brushless electric motor that has no position sensor. The stator coils are powered from the off mode in a constant-current open-loop control sequence until the pump reaches a speed threshold at which speed regulation switches over to closed-loop control on a setpoint corresponding to the lubrication flow rate required to ensure the reliability of the gearbox, but without in so doing exceeding a current threshold indicative of pump seizure, at which point motor control switches back over to the constant-current open-loop control sequence. The open-loop current setpoint is higher than the threshold for switching over to closed-loop control so that in the open-loop control mode the motor torque available at the pump is higher than in the closed-loop control mode.

公开(公告)号：US09890848B2

公开(公告)日：2018-02-13

申请号：US14441281

申请日：2013-10-14

Applicant: RENAULT s.a.s.

Inventor： Vincent Girardot ,  Damien Coulon ,  Mathieu Leleu

IPC: F16H57/04 ,  F16H48/08

CPC classification number: F16H57/0483 ,  F16H48/08 ,  F16H57/0421 ,  F16H57/0423 ,  F16H57/0457

Abstract: A motor vehicle differential including a housing holding a differential mechanism including a ring gear attached to a cage of planetary gears, the housing including a first half-housing that is configured to accommodate the cage of gears and at least a part of the ring gear, and a second half-housing closing the first half-housing, the first half-housing including a chamber that accommodates at least a part of the ring gear, and that includes at least a main transverse wall adjacent to a transverse face of the ring gear. The first half-housing includes a mechanism recovering the oil splashed onto the wall and a mechanism redirecting the recovered oil to the cage of planetary gears.