# US 2017/0282904 A1 · Hybrid vehicle system

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- Number: US 2017/0282904 A1
- Document ID: US20170282904A1
- Status: Published application
- Kind: A1
- Application number: 15/454,095
- Filed: 2017-03-09
- Published: 2017-10-05
- Earliest claimed: 2016-03-29
- Assignees: Fuji Jukogyo Kabushiki Kaisha
- Applicants: Fuji Jukogyo Kabushiki Kaisha
- Inventors: Tomohiro MORITA
- Web page: https://patentgrep.com/patent/US20170282904A1

## CPC

- B60W 20/40: Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers {(power-up or power-down of the driveline B60W30/192)}
- B60K 6/26: characterised by the motors or the generators
- B60K 6/28: characterised by the electric energy storing means, e.g. batteries or capacitors
- B60K 6/387: Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
- B60K 6/442: Series-parallel switching type
- B60K 6/485: Motor-assist type
- B60K 6/543: the transmission being a continuously variable transmission
- B60L 50/51: characterised by AC-motors
- B60L 53/24: Using the vehicle's propulsion converter for charging
- B60L 58/12: responding to state of charge [SoC]
- B60W 10/02: including control of driveline clutches
- B60W 10/06: including control of combustion engines
- B60W 10/08: including control of electric propulsion units, e.g. motors or generators
- B60W 10/30: including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
- B60W 20/10: Controlling the power contribution of each of the prime movers to meet required power demand
- B60K 6/365: with the gears having orbital motion
- B60K 2006/268: {Electric drive motor starts the engine, i.e. used as starter motor}
- B60K 2006/4808: {Electric machine connected or connectable to gearbox output shaft}
- B60K 2006/4825: {Electric machine connected or connectable to gearbox input shaft}
- B60L 2210/30: AC to DC converters
- B60L 2210/42: Voltage source inverters
- B60L 2240/423: Torque
- B60L 2240/50: related to clutches
- B60W 2510/0208: Clutch engagement state, e.g. engaged or disengaged
- B60W 2510/1025: Input torque
- B60W 2510/1075: fluid pressure, e.g. oil pressure
- B60W 2710/021: Clutch engagement state
- B60W 2710/0666: Engine torque
- B60W 2710/083: Torque
- Y02T 10/62: Hybrid vehicles
- Y02T 10/64: Electric machine technologies in electromobility
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 10/72: Electric energy management in electromobility
- Y02T 90/12: Electric charging stations
- Y02T 90/14: Plug-in electric vehicles
- Y10S 903/93: Conjoint control of different elements
- B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- 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
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A hybrid vehicle system includes: an engine that is capable of outputting a torque to be transmitted to a driving wheel; a first motor generator that is provided in a coupled manner to the engine and that is capable of outputting a torque to be transmitted to the driving wheel; a transmission that converts a torque output from one or both of the engine and the first motor generator at a predetermined transmission gear ratio; a transmission clutch that is capable of switching on and off power transmission between the first motor generator and the transmission; a second motor generator that is capable of outputting a torque to be transmitted to the driving wheel in a state where the transmission clutch is disengaged; and an oil pump that is coupled to a motor shaft of the first motor generator and that is driven by rotation of the motor shaft.

## Claims

### Claim 1

A hybrid vehicle system comprising:
an engine that is capable of outputting a torque to be transmitted to a driving wheel;
a first motor generator that is provided in a coupled manner to the engine and that is capable of outputting a torque to be transmitted to the driving wheel;
a transmission that converts a torque output from one or both of the engine and the first motor generator at a predetermined transmission gear ratio;
a transmission clutch that is capable of switching on and off power transmission between the first motor generator and the transmission;
a second motor generator that is capable of outputting a torque to be transmitted to the driving wheel in a state in which the transmission clutch is disengaged; and
an oil pump that is coupled to a motor shaft of the first motor generator and that is driven by rotation of the motor shaft.

### Claim 2 (depends on 1)

The hybrid vehicle system according to claim 1, comprising
an engine clutch that is capable of switching on and off power transmission between the engine and the first motor generator.

### Claim 3 (depends on 2)

The hybrid vehicle system according to claim 2,
wherein the engine clutch is provided in the first motor generator.

### Claim 4 (depends on 1)

The hybrid vehicle system according to claim 1,
wherein the second motor generator is coupled to an input side of the transmission.

### Claim 5 (depends on 2)

The hybrid vehicle system according to claim 2,
wherein the second motor generator is coupled to an input side of the transmission.

### Claim 6 (depends on 1)

The hybrid vehicle system according to claim 1,
wherein the second motor generator is coupled to an output side of the transmission.

### Claim 7 (depends on 2)

The hybrid vehicle system according to claim 2,
wherein the second motor generator is coupled to an output side of the transmission.

### Claim 8 (depends on 6)

The hybrid vehicle system according to claim 6, comprising
an output side transmission clutch that is capable of switching on and off power transmission, between the transmission and the second motor generator.

### Claim 9 (depends on 7)

The hybrid vehicle system according to claim 7, comprising
an output side transmission clutch that is capable of switching on and off power transmission, between the transmission and the second motor generator.

### Claim 10 (depends on 1)

The hybrid vehicle system according to claim 1, comprising
a second oil pump that is coupled to a crankshaft of the engine and that is driven by an output torque from the engine, while the oil pump is a first oil pump.

### Claim 11 (depends on 2)

The hybrid vehicle system according to claim 2, comprising
a second oil pump that is coupled to a crankshaft of the engine and that is driven by an output torque from the engine, while the oil pump is a first oil pump.

### Claim 12 (depends on 1)

The hybrid vehicle system according to claim 1, comprising
a control device that controls the hybrid vehicle system,
wherein the control device is capable of executing
a hybrid traveling mode in which the driving wheel is driven by an output torque from the engine and an output torque from at least one of the first motor generator and the second motor generator, and
a motor traveling mode in which the driving wheel is driven by an output torque from at least one of the first motor generator and the second motor generator.

### Claim 13 (depends on 2)

The hybrid vehicle system according to claim 2, comprising
a control device that controls the hybrid vehicle system,
wherein the control device is capable of executing
a hybrid traveling mode in which the driving wheel is driven by an output torque from the engine and an output torque from at least one of the first motor generator and the second motor generator, and
a motor traveling mode in which the driving wheel is driven by an output torque from at least one of the first motor generator and the second motor generator.

### Claim 14 (depends on 12)

The hybrid vehicle system according to claim 12,
wherein the control device disengages the transmission clutch and drives the oil pump by an output torque from the first motor generator while executing a single motor electric vehicle traveling mode in which the driving wheel is driven by only a torque output from the second motor generator.

### Claim 15 (depends on 13)

The hybrid vehicle system according to claim 13,
wherein the control device disengages the transmission clutch and drives the oil pump by an output torque from the first motor generator while executing a single motor electric vehicle traveling mode in which the driving wheel is driven by only a torque output from the second motor generator.

### Claim 16 (depends on 12)

The hybrid vehicle system according to claim 12,
wherein, when starting the engine, the control device cranks the engine by using an output torque from the first motor generator in a state in which the transmission clutch is disengaged, and starts the engine.

### Claim 17 (depends on 13)

The hybrid vehicle system according to claim 13,
wherein, when starting the engine, the control device cranks the engine by using an output torque from the first motor generator in a state in which the transmission clutch is disengaged, and starts the engine.

### Claim 18 (depends on 12)

The hybrid vehicle system according to claim 12,
wherein the control device disengages an engine clutch that is capable of switching on and off power transmission between the engine and the first motor generator, while executing a twin motor electric vehicle traveling mode in which the driving wheel is driven by torques output from the first motor generator and the second motor generator.

### Claim 19 (depends on 13)

The hybrid vehicle system according to claim 13,
wherein the control device disengages an engine clutch that is capable of switching on and off power transmission between the engine and the first motor generator, while executing a twin motor electric vehicle traveling mode in which the driving wheel is driven by torques output from the first motor generator and the second motor generator.
