Vehicle drive apparatus

Patent metadata

Field	Value
Publication number	US-11697339-B2
Application number	US-201917621712-A
Country	US
Kind code	B2
Filing date	Jun 26, 2019
Priority date	Jun 26, 2019
Publication date	Jul 11, 2023
Grant date	Jul 11, 2023

Abstract

A vehicle drive apparatus includes an internal combustion engine, an electric-power-generating-motor gear train, a drive gear, a driven gear, a differential, a low clutch and a high clutch. The electric-power-generating-motor gear train and the driven gear are arranged on a first plane. The drive gear, the driven gear, and the differential are arranged on a second plane. The low clutch and the high clutch are arranged on a third plane.

First claim

The invention claimed is:

1. A vehicle drive apparatus comprising:
an internal combustion engine;
a first rotary electrical machine configured to be driven to generate electrical power by the internal combustion engine;
a second rotary electrical machine configured to drive a vehicle driveshaft to rotate via a reducer;
a first gear secured to an output shaft of the internal combustion engine;
a first gear train configured to transfer rotation of the first gear to the first rotary electrical machine;
a countershaft arranged parallel to the output shaft;
a second gear rotatably supported on the countershaft and meshed with the first gear;
a third gear rotatably supported on the output shaft;
a fourth gear secured to the countershaft and meshed with the third gear;
a second gear train configured to transfer rotation of the fourth gear to the vehicle driveshaft;
a first clutch configured to engage the second gear with the countershaft;
a second clutch configured to engage the third gear with the output shaft; and
a third clutch configured to connect and disconnect propagation of a motive power between the second rotary electrical machine and the reducer,
the first gear train and the second gear being arranged on a first plane that extends in a direction orthogonal to an axial direction of the output shaft,
the third gear, the fourth gear, and the second gear train being arranged on a second plane that is set apart by a prescribed axial-direction distance from the first plane and that is parallel to the first plane, and
the first clutch and the second clutch being arranged on a third plane that is parallel to the first plane and that is positioned between the first plane and the second plane.

2. The vehicle drive apparatus according to claim 1 , wherein
the fourth gear is a reduction small gear that meshes with a reduction large gear in the second gear train.

Assignees

• Nissan Motor

Inventors

• Miura Yoshitaka
• Koga Masato
• Tsukizaki Atsushi

Classifications

• B60K6/36 Primary

  characterised by the transmission gearings · CPC title

• B60K6/387

  Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means · CPC title

• B60K2006/4833

  Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range · CPC title

• B60Y2200/92

  Hybrid vehicles · CPC title

• B60K6/442

  Series-parallel switching type · CPC title