Integrated internal combustion electric motor (ICEM) concept for hybrid and plug-in hybrid vehicle application

Patent metadata

Field	Value
Publication number	US-12558950-B2
Application number	US-202318305160-A
Country	US
Kind code	B2
Filing date	Apr 21, 2023
Priority date	Apr 21, 2023
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

A hybrid machine includes an engine, a first and second motor, a first and second generator, and a first and second geartrain. The engine generates power from a combustion reaction and includes an intake port, a combustion chamber, a piston, a crankshaft, and an exhaust port. The intake port receives air from an external environment. The combustion chamber mixes the air with fuel to create a mixture that is ignited. The piston actuates to rotate the crankshaft. The exhaust port delivers exhaust gases out of the engine. The first and second motors respectively include a first and second hub that rotate from supplied power. The first and second generators respectively generate power when a first and second shaft rotate. A first and second geartrain respectively connect to the first and second motors, the first and second generators, and the crankshaft to transmit power to a first and second wheel.

First claim

What is claimed is:

1 . A hybrid machine, comprising:
an engine configured to generate power from a combustion reaction, the engine comprising:
an intake port configured to receive air from an external environment of the engine;
a combustion chamber that receives the air from the intake port and mixes the air with fuel to create an air and fuel mixture that is ignited to create the combustion reaction;
a piston that is configured to actuate from the combustion reaction to rotate a crankshaft of the engine;
an exhaust port configured to deliver exhaust gases from the combustion reaction out of the engine;
a first motor comprising a first hub, the first hub being configured to rotate when power is supplied thereto; a second motor comprising a second hub, the second hub being configured to rotate when power is supplied thereto; a first generator configured to generate power when a first shaft of the first generator is rotated; a second generator configured to generate power when a second shaft of the second generator is rotated; a first geartrain connected to the first motor, the first generator, and the crankshaft of the engine, the first geartrain being configured to transmit a first amount of power to a first wheel, and a second geartrain connected to the second motor, the second generator, and the crankshaft of the engine, the second geartrain being configured to transmit a second amount of power to a second wheel, wherein the crankshaft is disposed on a transverse axis that extends through a center of the first motor and a center of the first generator.

2 . The hybrid machine of claim 1 , wherein the hybrid machine is symmetrical about a radial axis thereof such that a first half of the hybrid machine comprising the first motor, the first generator, and a first portion of the crankshaft is configured in a same orientation as that of a second half of the hybrid machine comprising the second motor, the second generator, and a second portion of the crankshaft of the engine.

3 . The hybrid machine of claim 1 , wherein:
the first motor comprises the first hub and a first motor coil, the first motor coil being configured to generate an electromagnetic field that surrounds the first hub, and the second motor comprises the second hub and a second motor coil, the second motor coil being configured to generate an electromagnetic field that surrounds the second hub.

4 . The hybrid machine of claim 1 , wherein the first motor forms an exterior of the first geartrain, and the second motor forms an exterior of the second geartrain.

5 . The hybrid machine of claim 1 , wherein the engine is transversely oriented such that the engine primarily extends in a direction orthogonal to a path of motion of the first wheel and the second wheel.

6 . The hybrid machine of claim 1 , wherein the first amount of power transmitted by the first geartrain is different from the second amount of power transmitted by the second geartrain.

7 . The hybrid machine of claim 1 , wherein the first shaft of the first generator and the second shaft of the second generator surround the crankshaft in a radial direction.

8 . The hybrid machine of claim 1 , wherein the first geartrain and the second geartrain are planetary gearsets.

9 . The hybrid machine of claim 8 , wherein the first hub is fixed to a ring gear of the first geartrain.

10 . The hybrid machine of claim 8 , wherein the first shaft of the first generator connects to a sun gear of the first geartrain.

11 . The hybrid machine of claim 8 , wherein the crankshaft connects to a carrier gear of the first geartrain.

12 . The hybrid machine of claim 11 , wherein the carrier gear connected to the crankshaft connects to a planet gear of the first geartrain.

13 . The hybrid machine of claim 1 , wherein the engine comprises a camshaft configured to actuate one or more pushrods that control an amount of fluid transmitted through the intake port and the exhaust port of the engine.

14 . The hybrid machine of claim 13 , wherein the engine comprises a crankshaft timing gear that is fixed to the crankshaft, the crankshaft timing gear being configured to rotate a camshaft timing gear that is fixed to the camshaft.

15 . The hybrid machine of claim 1 , wherein the engine comprises an engine block that forms the combustion chamber, and the engine block is integrally formed as a single block of material.

16 . The hybrid machine of claim 15 , wherein the piston is fixed to a crankshaft cover that is fixed to the engine block.

17 . The hybrid machine of claim 15 , wherein the engine block comprises a first geartrain compartment configured to receive the first geartrain and a second geartrain compartment configured to receive the second geartrain.

18 . An assembly, comprising:
A hybrid machine, comprising:
an engine configured to generate power from a combustion reaction, the engine comprising:
an intake port configured to receive air from an external environment of the engine;
a combustion chamber that receives the air from the intake port and mixes the air with fuel to create an air and fuel mixture that is ignited to create the combustion reaction;
a piston that is configured to actuate from the combustion reaction to rotate a crankshaft of the engine;
an exhaust port configured to deliver exhaust gases from the combustion reaction out of the engine;

a first motor comprising a first hub, the first hub being configured to rotate when power is supplied thereto;
a second motor comprising a second hub, the second hub being configured to rotate when power is supplied thereto;
a first generator configured to generate power when a first shaft of the first generator is rotated;
a second generator configured to generate power when a second shaft of the second generator is rotated;
a first geartrain connected to the first motor, the first generator, and the crankshaft of the engine, the first geartrain being configured to transmit a first amount of power to a first wheel, and
a second geartrain connected to the second motor, the second generator, and the crankshaft of the engine, the second geartrain being configured to transmit a second amount of power to a second wheel,
wherein the crankshaft is disposed on a transverse axis that extends through a center of the first motor and a center of the first generator;
a fuel tank connected to the hybrid machine, the fuel tank being configured to deliver the fuel to the engine, and a battery connected to the hybrid machine, the battery being configured to transmit and receive power from the first generator, the second generator, the first motor, and the second motor.

19 . A method for operating a hybrid machine, the method comprising:
receiving air from an external environment of an engine; mixing the air with fuel to create an air and fuel mixture; igniting the air and fuel mixture to create a combustion reaction in the engine; actuating a piston with the combustion reaction, thereby rotating a crankshaft of the engine; delivering exhaust gases from the combustion reaction out of the engine; supplying power to a first motor to rotate a first hub of the hybrid machine; supplying power to a second motor to rotate a second hub of the hybrid machine; rotating a first shaft of a first generator to generate power; rotating a second shaft of a second generator to generate power; transmitting a first amount of power from at least one of the first motor, the first generator, and the crankshaft of the engine to a first wheel,

Assignees

• Aramco Services Co
• Saudi Arabian Oil Co

Inventors

• Engineer Nayan
• Cleary David

Classifications

• B60K2006/4825

  Electric machine connected or connectable to gearbox input shaft · CPC title

• B60K6/48

  Parallel type · CPC title

• B60K6/365

  with the gears having orbital motion · CPC title

• B60K6/24

  characterised by the combustion engines · CPC title

• B60K2007/0046

  the motor moving together with the vehicle body, i.e. moving independently from the wheel axle · CPC title