US 10,753,410 B2Granted

Fluid assembly

AssigneeSchaeffler Technologies AG & Co. KG

InventorsMarco Grethel, Lászlo Mán, Dominik Herkommer

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Abstract

A fluid arrangement for controlling a transmission of a motor vehicle in a hydraulic circuit is disclosed. The fluid arrangement includes a dual clutch including a first sub-clutch and a second sub-clutch, wherein the first sub-clutch is configured to be actuated via a first reversing pump actuator and the second sub-clutch is configured to be actuated via a second reversing pump actuator. The first and second reversing pump actuators each have a first delivery direction and a second delivery direction for delivering a working fluid in the hydraulic circuit. A first gear ratio mechanism with a variable gear ratio for actuating the dual clutch is configured to be actuated via the first delivery direction of the first and second reversing pump actuators a and a second gear ratio mechanism with a variable gear ratio for actuating a consumer arrangement is configured to be actuated via the second delivery direction.

Claims14

Dependent claims

A fluid arrangement for controlling a transmission of a motor vehicle in a hydraulic circuit, comprising:

a dual clutch including a first sub-clutch and a second sub-clutch,
wherein the first sub-clutch of the dual clutch is configured to be actuated via a first reversible pump actuator,
wherein the second sub-clutch of the dual clutch is configured to be actuated via a second reversible pump actuator,
wherein the first reversible pump actuator and the second reversible pump actuator each have a first delivery direction and a second delivery direction, opposing the first delivery direction, for delivering a working fluid in the hydraulic circuit,
wherein a first gear ratio mechanism with a variable gear ratio for actuating the dual clutch is configured to be actuated via the first delivery direction of the first reversible pump actuator and the second reversible pump actuator and a second gear ratio mechanism with a variable gear ratio for actuating a consumer arrangement is configured to be actuated via the second delivery direction,
wherein the first gear ratio mechanism and the second gear ratio mechanism are different;
and
wherein the first gear ratio mechanism comprises a first lever actuator mechanism for the first sub-clutch and a second lever actuator mechanism for the second sub-clutch.

5 more elements

A fluid arrangement for transmission control of a motor vehicle in a hydraulic circuit, comprising:

a dual clutch including a first sub-clutch and a second sub-clutch, wherein the first sub-clutch is actuated via a first reversible pump actuator and the second sub-clutch is actuated via a second reversible pump actuator, the first reversible pump actuator and the second reversible pump actuator each having a first delivery direction and a second delivery direction opposite the first delivery direction for delivering a working fluid in the hydraulic circuit;
a consumer arrangement including a first consumer and a second consumer actuated via a valve device, wherein the valve device is configured to connect the first consumer to the first reversible pump actuator and the second consumer to the second reversible pump actuator;
a first valve connected in parallel with the first reversible pump actuator;
and
a second valve connected in parallel with the second reversible pump actuator, wherein the first valve and the second valve each have two connections connected to the first valve and the second valve, respectively, and a third connection connected to a reservoir for providing the working fluid for the hydraulic circuit.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/763,774Filed 21 Sep 2016
Priority: DE 10 2015 218 78629 Sep 2015
Published: US 2018/0283475 A14 Oct 2018
Granted: 25 Aug 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

F16D 48/0206
Control by fluid pressure: in a system with a plurality of fluid-actuated clutches
F16D 2048/0236
By rotary pump actuation: with multiple independent pumps, e.g. one per clutch, or for supplying fluid to different systems
F16D 2048/0248
Electrically driven rotary pumps: reversible rotary pumps, i.e. pumps that can be rotated in the two directions
F16D
Couplings for transmitting rotation