US 10,539,071 B2Granted

Vehicle drive device

AssigneesAisin Aw Co., Ltd., Toyota Jidosha Kabushiki Kaisha

InventorsMikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio

Life of this patent

Estimating the term…

Loading patent…

Abstract

A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.

Claims1

Dependent claims

A vehicle drive device comprising:

an input shaft drivingly connected to an internal combustion engine;
a rotary electric machine;
a transmission drivingly connected to the rotary electric machine and configured to change a speed ratio between the rotary electric machine and an output shaft;
the output shaft being drivingly connected between the transmission and wheels;
an engagement coupling configured to change a state of engagement between the input shaft and the transmission;
a first hydraulic pressure control valve body that supplies hydraulic pressure to the transmission;
a second hydraulic pressure control valve body that is provided separately from the first hydraulic pressure control valve body, and that supplies hydraulic pressure to the engagement coupling;
wherein
the first hydraulic pressure control valve body is arranged in a position having a portion overlapping, with the transmission, when viewed in a radial direction of the rotary electric machine, and
the second hydraulic pressure control valve body is arranged in a position overlapping with the rotary electric machine when viewed in the radial direction of the rotary electric machine.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/245,908Filed 11 Jan 2019 · continuation
Priority: JP 2011-2429164 Nov 2011
Published: US 2019/0145312 A116 May 2019
Granted: 21 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

F02B 63/042
For electric generators: rotating electric generators
B60W 20/30
Control systems specially adapted for hybrid vehicles: control strategies involving selection of transmission gear ratio
F16D 33/02
Rotary fluid couplings or clutches of the hydrokinetic type: controlled by changing the flow of the liquid in the working circuit, while…
F16D 48/02
External control of clutches: control by fluid pressure

Family

Application61/592,225Us provisional application · filed 30 Jan 2012
Application13/659,361Parent of this continuation · filed 24 Oct 2012
Application14/317,991Parent of this continuation · filed 27 Jun 2014
US 9,261,017 B2Parent of this continuation · filed 16 Feb 2016
Application15/706,075Parent of this continuation · filed 15 Sep 2017
US 2019/0145312 A1Pre-grant publication · published 16 May 2019
US 10,267,218 B2Parent of this continuation
US 9,797,305 B2Parent of this continuation
US 2013/0111891 A1Published application
US 2014/0305389 A1Published application
US 2018/0003107 A1Published application
US 10,539,071 B2This patent

From the US filing history. Foreign family members aren’t listed.