# US 2014/0190455 A1 · Hybrid drive device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0190455 A1
- Document ID: US20140190455A1
- Status: Published application
- Kind: A1
- Application number: 14/238,668
- Filed: 2012-09-12
- Published: 2014-07-10
- Earliest claimed: 2011-10-31
- Assignees: Aisin Aw Co., Ltd.
- Inventors: Takeshi Ootsuki
- Web page: https://patentgrep.com/patent/US20140190455A1

## CPC

- B60L 58/12: responding to state of charge [SoC]
- B60K 6/387: Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
- B60K 6/48: Parallel type
- B60K 6/543: the transmission being a continuously variable transmission
- B60L 15/20: for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L 50/16: with provision for separate direct mechanical propulsion
- B60W 10/02: including control of driveline clutches
- B60W 10/30: including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
- B60W 30/18036: {Reversing}
- F02D 41/32: of the low pressure type {(F02D41/3082 takes precedence)}
- F16H 61/0025: {Supply of control fluid; Pumps therefor}
- F16H 61/0031: {using auxiliary pumps, e.g. pump driven by a different power source than the engine}
- B60K 2006/541: {without reverse ratio using instead electric reversing}
- B60L 2240/12: Speed
- B60L 2240/423: Torque
- B60L 2240/443: Torque
- B60L 2240/445: Temperature
- B60L 2240/486: Operating parameters
- B60L 2250/26: by pedal actuation
- B60Y 2200/92: Hybrid vehicles
- B60Y 2400/72: Continous variable transmissions [CVT]
- F02D 29/02: peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
- 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
- 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
- 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
- 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
- F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W)
- F16H: GEARING
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A hybrid drive having a hydraulic control device capable of hydraulically controlling a first clutch, a second clutch, and a continuously variable transmission using a hydraulic pressure generated by at least one of a mechanical oil pump and an electric oil pump. A control section is configured to execute a mechanical oil pump drive mode in which a command to start an internal combustion engine is provided to drive the mechanical oil pump via a first shaft using output rotation of the internal combustion engine during reverse travel in which reverse rotation is output from the rotary electric machine to rotate wheels in reverse via the second shaft, the second clutch, and the continuously variable transmission with the first clutch disengaged and with the second clutch engaged by providing a command to the hydraulic control device.

## Claims

### Claim 1

A hybrid drive device characterized by comprising:
a first shaft drivably coupled to an internal combustion engine;
a mechanical oil pump driven in conjunction with the first shaft;
an electric oil pump driven independently of the mechanical oil pump;
a rotary electric machine;
a second shaft drivably coupled to the rotary electric machine;
a first clutch capable of blocking power transfer between the first shaft and the second shaft;
a continuously variable transmission capable of continuously varying a speed of rotation input to an input shaft and outputting to wheels rotation in the same direction as a direction of the rotation input to the input shaft;
a second clutch capable of blocking power transfer between the second shaft and the input shaft;
a hydraulic control device capable of hydraulically controlling the first clutch, the second clutch, and the continuously variable transmission using a hydraulic pressure generated by at least one of the mechanical oil pump and the electric oil pump; and
a control section capable of executing a mechanical oil pump drive mode in which a command to start the internal combustion engine is provided to drive the mechanical oil pump via the first shaft using output rotation of the internal combustion engine during reverse travel in which reverse rotation is output from the rotary electric machine to rotate the wheels in reverse via the second shaft, the second clutch, and the continuously variable transmission with the first clutch disengaged and with the second clutch engaged by providing a command to the hydraulic control device.

### Claim 2 (depends on 1)

The hybrid drive device according to claim 1, wherein
the control section executes the mechanical oil pump drive mode in the case where input torque input to the continuously variable transmission is equal to or more than a predetermined value.

### Claim 3 (depends on 2)

The hybrid drive device according to claim 2, wherein
the control section is capable of executing a charge mode in which charge is performed by driving the rotary electric machine via the first shaft, the first clutch, and the second shaft using output rotation of the internal combustion engine with the first clutch engaged and with the second clutch disengaged by providing a command to the hydraulic control device.

### Claim 4 (depends on 1)

The hybrid drive device according to claim 1, wherein
the control section is capable of executing a charge mode in which charge is performed by driving the rotary electric machine via the first shaft, the first clutch, and the second shaft using output rotation of the internal combustion engine with the first clutch engaged and with the second clutch disengaged by providing a command to the hydraulic control device.