# US 2014/0196445 A1 · Hybrid vehicle control device and hybrid vehicle

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- Number: US 2014/0196445 A1
- Document ID: US20140196445A1
- Status: Published application
- Kind: A1
- Application number: 14/154,565
- Filed: 2014-01-14
- Published: 2014-07-17
- Earliest claimed: 2013-01-17
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Inventors: Keisuke MORISAKI
- Web page: https://patentgrep.com/patent/US20140196445A1

## CPC

- F01N 3/08: for rendering innocuous (using electric or electrostatic separators F01N3/01; chemical aspects B01D53/92)
- B60K 6/445: Differential gearing distribution type
- B60W 10/06: including control of combustion engines
- B60W 10/08: including control of electric propulsion units, e.g. motors or generators
- B60W 20/16: for reducing engine exhaust emissions
- B60W 30/194: related to low temperature conditions, e.g. high viscosity of hydraulic fluid
- F02D 29/02: peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
- F02D 41/06: for engine starting or warming up {(F02D41/0255 takes precedence)}
- B60W 2510/068: Engine exhaust temperature
- B60W 2710/0633: Inlet air flow rate
- F01N 2590/11: for hybrid vehicles
- F02D 41/0002: {Controlling intake air}
- F02D 41/064: {at cold start (F02D41/067 takes precedence)}
- F02D 41/068: {for warming-up}
- F02D 2200/0802: Temperature of the exhaust gas treatment apparatus
- Y02T 10/40: Engine management systems
- Y02T 10/62: Hybrid vehicles
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- 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)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

In controlling a hybrid vehicle, an internal combustion engine and an electric motor are controlled such that, when a power request is received while traveling with an operation of the internal combustion engine stopped and a requested power required for traveling is higher than a predetermined power, the operation of the internal combustion engine is started with an intake air volume based on the requested power and the hybrid vehicle travels with the requested power. When the power request is received for the first time after ignition-on, the start control for controlling the internal combustion engine is performed such that the operation of the internal combustion engine is started with an intake air volume lower than that based on the requested power. The hybrid vehicle includes a controller that performs the above control, an internal combustion engine, an electric motor, a battery, and a purification device.

## Claims

### Claim 1

A control device for controlling a hybrid vehicle including
an internal combustion engine of which a purification device having a purification catalyst for purifying an exhaust is installed in an exhaust system and which outputs a motive power for traveling; an electric motor that receives and outputs a motive power for traveling; and a battery that sends and receives an electric power to and from the electric motor,
the control device comprising:
a electronic control unit configured to control the internal combustion engine and the electric motor such that, when receiving a power request while traveling with an operation of the internal combustion engine stopped and a requested power required for traveling is higher than a predetermined power, the operation of the internal combustion engine is started with an intake air volume based on the requested power and the hybrid vehicle travels with the requested power,
the electronic control unit being configured to perform a start control for controlling the internal combustion engine such that, when receiving the power request for the first time after an ignition switch is turned on, the operation of the internal combustion engine is started with an intake air volume lower than the intake air volume based on the requested power.

### Claim 2 (depends on 1)

The control device according to claim 1 wherein
the electronic control unit is configured to perform the start control when receiving the power request for the first time after the ignition switch is turned on and the purification catalyst is not activated.

### Claim 3 (depends on 2)

The control device according to claim 2 wherein
the electronic control unit is configured to determine that the purification catalyst is not activated when a temperature of the purification catalyst is lower than a predetermined temperature.

### Claim 4 (depends on 1)

The control device according to claim 1 wherein
the electronic control unit is configured to control the internal combustion engine such that, in the start control, the internal combustion engine is started with an intake air volume predetermined for an idle operation of the internal combustion engine.

### Claim 5

A hybrid vehicle comprising:
an internal combustion engine configured to output a motive power for traveling;
a first electric motor configured to receive and output a motive power for traveling;
a battery configured to send and receive an electric power to and from the first electric motor;
a purification device that has a purification catalyst for purifying an exhaust and is installed in an exhaust system of the internal combustion engine; and
a electronic control unit configured to control the internal combustion engine and the first electric motor such that, when receiving a power request while traveling with an operation of the internal combustion engine stopped and a requested power required for traveling is higher than a predetermined power, the operation of the internal combustion engine is started with an intake air volume based on the requested power and the hybrid vehicle travels with the requested power,
the electronic control unit being configured to perform a start control for controlling the internal combustion engine such that, when receiving the power request for the first time after an ignition switch is turned on, the operation of the internal combustion engine is started with an intake air volume lower than the intake air volume based on the requested power.

### Claim 6 (depends on 5)

The hybrid vehicle according to claim 5, further comprising:
a planetary gear including three rotating components, the three rotating components being connected respectively to a driving shaft linked to an axle, an output axis of the internal combustion engine, and a rotation axis of the first electric motor; and
a second electric motor including a rotation axis, the rotation axis of the second electric motor being connected to the driving shaft.
