# US 2014/0195082 A1 · Hybrid vehicle control device

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

- Number: US 2014/0195082 A1
- Document ID: US20140195082A1
- Status: Published application
- Kind: A1
- Application number: 13/880,398
- Filed: 2011-10-20
- Published: 2014-07-10
- Earliest claimed: 2010-10-21
- Assignees: Nissan Motor Co., Ltd.
- Inventors: Yutaka Takamura; Hiroyuki Ashizawa; Haruhisa Tsuchikawa
- Web page: https://patentgrep.com/patent/US20140195082A1

## CPC

- B60L 58/13: Maintaining the SoC within a determined range
- B60K 6/48: Parallel type
- B60L 7/14: for vehicles propelled by AC motors
- B60L 15/2009: {for braking}
- B60L 15/2054: {by controlling transmissions or clutches}
- B60L 50/16: with provision for separate direct mechanical propulsion
- 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 20/00: Control systems specially adapted for hybrid vehicles {(hybrid vehicle design, B60K6/00; electric vehicles B60L)}
- 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)}
- F16D 48/066: {Control of fluid pressure, e.g. using an accumulator (F16D48/062, F16D48/068 take precedence)}
- B60L 2210/40: DC to AC converters
- B60L 2220/14: Synchronous machines
- B60L 2240/12: Speed
- B60L 2240/421: Speed
- B60L 2240/423: Torque
- B60L 2240/441: Speed
- B60L 2240/443: Torque
- B60L 2240/461: Speed
- B60L 2240/463: Torque
- B60L 2240/507: Operating parameters
- B60L 2250/26: by pedal actuation
- B60L 2270/145: Structure borne vibrations
- B60W 2540/10: Accelerator pedal position
- B60W 2710/023: Clutch engagement rate
- B60W 2710/0644: Engine speed
- B60W 2710/081: Speed
- B60W 2710/105: Output torque
- B60Y 2200/92: Hybrid vehicles
- F16D 2500/30406: Clutch slip
- F16D 2500/3061: Engine inlet air flow rate
- F16D 2500/3068: Speed change of rate of the engine
- F16D 2500/3165: Using the moment of inertia of a component as input for the control
- F16D 2500/7044: Output shaft 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
- Y10S 903/946: Characterized by control of driveline clutch
- 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
- F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- 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 control device is provided that is capable of achieving stable input torque control and torque capacity control of the clutch. When transitioning between a slip drive mode, in which the vehicle travels by controlling the rotation speed of the drive source and controlling the slip state of a starting clutch, and an engagement drive mode, in which the vehicle travels by controlling the torque of the drive source and completely engaging the starting clutch, the torque of the inertia component of the drive source side is deducted from the target drive torque set on the basis of the acceleration opening degree set as the starting clutch transfer torque capacity in the slip state.

## Claims

### Claim 1

A control device for a hybrid vehicle comprising:
a starting clutch disposed between a drive source and drive wheels;
a slip drive mode in which the vehicle travels with the drive source placed under a rotation speed control at a higher rotation speed than an output side rotation speed of the starting clutch while performing a slip control on the starting clutch to achieve a value in accordance with a target drive torque set based on an accelerator pedal opening;
an engagement drive mode in which the vehicle travels with the drive source placed under a torque control in accordance with the target drive torque set based on the accelerator pedal opening while fully engaging the starting clutch; and
a clutch control mechanism that controls the starting clutch transfer torque capacity at a time of the slip control, wherein
the clutch control mechanism, when transitioning in mode from the slip drive mode to the engagement drive mode, calculates a transfer torque capacity that ensures a same output shaft angle acceleration between a slip state and an engaged state of the starting clutch, and deducts from this transfer torque capacity inertia components at a side of drive source to set the starting clutch transfer torque capacity at the slip state.

### Claim 2 (depends on 1)

The control device for a hybrid vehicle as claimed in claim 1, wherein
the clutch control mechanism is configured to correct the starting clutch transfer torque capacity less than the input torque of the drive source when transitioning between the slip state and the engaged state.

### Claim 3 (depends on 1)

The control device for a hybrid vehicle as claimed in claim 1, wherein
the clutch control mechanism corrects the starting clutch transfer torque capacity by a value considering a friction or viscosity on the side of the drive source when transitioning between the slip state and the engaged state.

### Claim 4

A control device for a hybrid vehicle, comprising:
a starting clutch disposed between a drive source and drive wheels;
a slip drive mode in which the vehicle travels with the drive source placed under a rotation speed control at a higher rotation speed than an output side rotation speed of the starting clutch while performing a slip control on the starting clutch to achieve a value in accordance with a target drive torque set based on an accelerator pedal opening;
a clutch control mechanism that controls a starting clutch transfer torque capacity at a time of the slip control; and
an accelerator pedal opening detector to detect an accelerator pedal opening degree, wherein the clutch control mechanism, when the drive source is controlled at a constant rotation speed and the accelerator opening is not detected, calculates a transfer torque capacity that ensures a same output shaft angle acceleration between a slip state and an engaged state of the starting clutch, and deducts from the transfer torque capacity inertia components at a side of drive source out of the transfer torque capacity.