IP Library Granted Patent US 10,744,862
Granted Patent B2
US 10,744,862 · App. 16/132,747 · Granted Aug 18, 2020

Electric vehicle

Inventors: Tadashi Sekiguchi (Ashigarakami-gun, JP); Yushi Seki (Susono, JP)
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
B60K1/00B60K25/00B60K2001/001B60K2025/005
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Quick Facts
Patent No.
US 10,744,862
App. No.
16/132,747
Granted
Aug 18, 2020
Kind
B2
Abstract

An electric vehicle is provided with an electric motor serving as a driving source and is not provided with an internal combustion engine from which power is transmitted to drive wheels driven by power from the electric motor. The electric vehicle includes: a torque converter that is disposed coaxially with an output shaft of the electric motor, and to which the power is transmitted from the electric motor; an automatic transmission disposed on a power transmission path between the electric motor and the drive wheels, and configured to achieve a shift stage at which the power is interrupted; and a mechanical oil pump driven by the power from the electric motor, and disposed on the power transmission path, at a position upstream of the automatic transmission in a direction of power transmission from the electric motor to the drive wheels. The mechanical oil pump is disposed in the electric motor.

Claims (14)

1. An electric vehicle provided with an electric motor serving as a driving source, the electric vehicle not being provided with an internal combustion engine from which power is transmitted to drive wheels driven by power from the electric motor, the electric vehicle comprising:

a torque converter that is disposed coaxially with an output shaft of the electric motor, and to which the power is transmitted from the electric motor;

an automatic transmission disposed on a power transmission path between the electric motor and the drive wheels, the automatic transmission being configured to achieve a shift stage at which the power is interrupted; and

a mechanical oil pump driven by the power from the electric motor, the mechanical oil pump being disposed on the power transmission path, at a position upstream of the automatic transmission in a direction of power transmission from the electric motor to the drive wheels,

wherein the mechanical oil pump is disposed in the electric motor.

2. The electric vehicle according to claim 1 , wherein an output shaft of the torque converter is provided with a bevel gear meshing with a final driven gear.

3. The electric vehicle according to claim 1 , wherein the automatic transmission is disposed in the electric motor.

4. The electric vehicle according to claim 1 , wherein

the automatic transmission includes:

a transmission input shaft and a transmission output shaft that are disposed in parallel to each other;

a low-speed shifting mechanism that achieves a low-speed shift stage, the low-speed shifting mechanism being disposed on a power transmission path between the transmission input shaft and the transmission output shaft, and the low-speed shifting mechanism being disposed coaxially with the transmission output shaft;

a high-speed shifting mechanism that achieves a high-speed shift stage, the high-speed shifting mechanism being disposed on the power transmission path between the transmission input shaft and the transmission output shaft, and the high-speed shifting mechanism being disposed coaxially with the transmission input shaft;

a synchromesh dog clutch that permits and interrupts power transmission between the transmission output shaft and the low-speed shifting mechanism; and

a friction clutch that permits and interrupts power transmission between the transmission input shaft and the high-speed shifting mechanism.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2018
From: SEKIGUCHI, TADASHI; SEKI, YUSHI
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 047096/0215 →
Priority Claims (1)
JP 2017-186942 · Sep 27, 2017 · national
Continuity (1)
Related Publication 20190092157A1 · Mar 28, 2019
Cited By (4)
US 12,311,769 US 12,370,888 US 12,515,532 US 12,594,828