# US 10,870,339 B2 · Vehicle

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- Number: US 10,870,339 B2
- Document ID: US10870339B2
- Status: Granted
- Kind: B2
- Application number: 16/344,951
- Filed: 2017-10-27
- Published: 2019-09-05
- Granted: 2020-12-22
- Earliest claimed: 2016-10-28
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Andrii Pydin
- Web page: https://patentgrep.com/patent/US10870339B2

## CPC

- B60K 1/02: comprising more than one electric motor
- B60K 1/00: Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00)
- B60K 17/12: of electric gearing
- B60K 17/16: of differential gearing
- B60K 17/30: the ultimate propulsive elements, e.g. ground wheels, being steerable
- B60L 15/2036: {Electric differentials, e.g. for supporting steering vehicles}
- B60L 15/2054: {by controlling transmissions or clutches}
- B60K 2001/001: {one motor mounted on a propulsion axle for rotating right and left wheels of this axle}
- B60Y 2400/73: Planetary gearings
- Y02T 10/64: Electric machine technologies in electromobility
- Y02T 10/72: Electric energy management in electromobility
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Provided is a vehicle in which, when viewed in a vertical direction, at least part of an electric motor is disposed below: a second power transmission member disposed on a power transmission path between a first rotating element and one wheel LWf; a third power transmission member disposed on a power transmission path between a third rotating element and the other wheel Rwf; or a differential mechanism. The part of the electric motor is disposed so as to overlap the second power transmission member, the third power transmission member, or the differential mechanism.

## Claims

### Claim 1

A vehicle comprising:
an electric motor which drives a left wheel and a right wheel of the vehicle, and has a rotor and a stator; and
a differential mechanism which has three rotating elements, and configured so that rotation speeds of the three rotating elements satisfy a collinear relationship on a single line in a collinear figure,
wherein the differential mechanism is disposed on a power transmission path between the electric motor to which a propeller shaft is not provided, and the left wheel and the right wheel, and torque is transmitted from an upper end of an output shaft of the electric motor to the differential mechanism,
wherein, when defining the three rotating elements as a first rotating element, a second rotating element and a third rotating element in arrangement order of the collinear figure,
the first rotating element is mechanically connected to one wheel, which is either one among the left wheel and the right wheel,
wherein the second rotating element is mechanically connected to the electric motor,
wherein the third rotating element is mechanically connected to the other wheel which is the other one among the left wheel and the right wheel,
wherein the electric motor is disposed so that the rotation axis of the rotor extends along a vertical direction of the vehicle, and is disposed so that the rotor is located lower than a first power transmission member disposed on a power transmission path between the electric motor and the differential mechanism, and
further is arranged so that at least part of the electric motor is disposed below a second power transmission member, a third power transmission member or the differential mechanism so as overlap in a vertical direction view with:
the second power transmission member disposed on the power transmission path between the first rotating element and the one wheel,
the third power transmission member disposed on the power transmission path between the third rotating element and the other wheel, or
the differential mechanism.

### Claim 2 (depends on 1)

The vehicle according to claim 1,
wherein the first power transmission member includes:
a first rotating body disposed on a side of the electric motor on the power transmission path;
a second rotating body disposed on a side of the differential mechanism on the power transmission path; and
a third rotating body interposed between the first rotating body and the second rotating body,
wherein the third rotating body is disposed so as to extend in an extending direction of the second power transmission member or the third power transmission member, and
wherein at least part of the electric motor is disposed so as below the second power transmission member or the third power transmission member.

### Claim 3 (depends on 2)

The vehicle according to claim 2, wherein an upper end of the electric motor is disposed so as to be located above a lower end of the differential mechanism in a vehicle-width direction view.

### Claim 4 (depends on 3)

The vehicle according to claim 3, wherein a shaft center of the second rotating body is disposed so as to be above the upper end of the electric motor and below an upper end of the first power transmission member, in a vehicle-width direction view.

### Claim 5 (depends on 1)

The vehicle according to claim 1, wherein the electric motor is disposed so that, in a front/rear direction of the vehicle in a vehicle-width direction view, the first power transmission member and the differential mechanism are located between an end of the electric motor on one side relative to a center in the front/rear direction of the vehicle and an end of the electric motor on another side relative to the center in the front/rear direction.
