# US 10,767,585 B2 · Hybrid vehicle

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- Number: US 10,767,585 B2
- Document ID: US10767585B2
- Status: Granted
- Kind: B2
- Application number: 16/244,926
- Filed: 2019-01-10
- Published: 2019-07-18
- Granted: 2020-09-08
- Earliest claimed: 2018-01-15
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Takumi Anzawa
- Web page: https://patentgrep.com/patent/US10767585B2

## CPC

- F02D 41/029: {the exhaust gas treating apparatus being a particulate filter}
- B60K 6/445: Differential gearing distribution type
- B60W 20/16: for reducing engine exhaust emissions
- F01N 3/023: using means for regenerating the filters, e.g. by burning trapped particles
- F01N 9/002: {of filter regeneration}
- B60W 2050/002: {Integrating means}
- B60W 2510/0623: Fuel flow rate
- B60W 2510/0628: Inlet air flow rate
- B60W 2510/0676: Engine temperature
- B60W 2510/068: Engine exhaust temperature
- B60W 2510/244: Charge state
- B60W 2520/10: Longitudinal speed
- B60W 2540/10: Accelerator pedal position
- B60Y 2200/92: Hybrid vehicles
- B60Y 2300/476: Regeneration of particle filters
- F01N 2590/11: for hybrid vehicles
- Y02T 10/62: Hybrid vehicles
- 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)
- 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
- 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)
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A hybrid vehicle includes a vehicle control device to perform a traveling control so as to allow switching between an HV traveling in which the hybrid vehicle travels while an engine works and an EV traveling in which the hybrid vehicle travels while working of the engine is stopped, and an engine control device to execute a filter regeneration control that is an engine control for removing particulate matter deposited in a filter. The engine control device adopts satisfaction of a predetermined first condition, as a requirement for execution of the filter regeneration control, when the number of times of start of the engine after vehicle activation is one, and adopts satisfaction of a second condition, which is satisfied more easily than the first condition, as a requirement for execution of the filter regeneration control, when the number of times of the start is two or more.

## Claims

### Claim 1

A hybrid vehicle comprising:
an engine mounted on the hybrid vehicle;
an electric motor that is a driving source of the hybrid vehicle;
a filter that collects particulate matter in exhaust gas from the engine;
a vehicle control device configured to control traveling of the hybrid vehicle so as to allow switching between an HV traveling in which the hybrid vehicle travels while the engine works and an EV traveling in which the hybrid vehicle travels while working of the engine is stopped; and
an engine control device configured to execute a filter regeneration control that is an engine control for removing the particulate matter deposited in the filter, wherein
the engine control device is configured to adopt satisfaction of a predetermined first condition, as a requirement for execution of the filter regeneration control, when the number of times of start of the engine after vehicle activation is one, and to adopt satisfaction of a second condition, as a requirement for execution of the filter regeneration control, when the number of times of the start is two or more, the second condition being satisfied more easily than the first condition.

### Claim 2 (depends on 1)

The hybrid vehicle according to claim 1, wherein:
the engine control device is configured to determine whether the first condition is satisfied and whether the second condition is satisfied, based on a predetermined parameter that is obtained from a measurement result of an operating state of the engine; and
a value range of the parameter in which the second condition is satisfied is wider than a value range of the parameter in which the first condition is satisfied.

### Claim 3 (depends on 1)

The hybrid vehicle according to claim 1, wherein:
the engine control device is configured to determine whether the first condition is satisfied and whether the second condition is satisfied, based on a parameter that is increased depending on an elapse of time after the start of the engine; and
a lower limit of the parameter at which the second condition is satisfied is lower than a lower limit of the parameter at which the first condition is satisfied.

### Claim 4 (depends on 1)

The hybrid vehicle according to claim 1, wherein:
the first condition is satisfied when an elapsed time after the start of the engine is equal to or longer than a predetermined first time; and
the second condition is satisfied when the elapsed time is equal to or longer than a second time, the second time being shorter than the first time.

### Claim 5

A hybrid vehicle comprising:
an engine mounted on the hybrid vehicle;
an electric motor that is a driving source of the hybrid vehicle;
a battery that supplies electric power to the electric motor;
an electric generator that receives dynamic power of the engine, the electric generator generating electric power with which the battery is charged;
a filter that collects particulate matter in exhaust gas from the engine;
a vehicle control device configured to select one control mode from a plurality of control modes and to control the hybrid vehicle depending on the selected control mode, the plurality of control modes including a Charge Sustaining mode in which decrease in a state-of-charge of the battery is restrained and a Charge Depleting mode in which the electric power of the battery is consumed; and
an engine control device configured to execute a filter regeneration control that is an engine control for removing the particulate matter deposited in the filter, wherein
the engine control device is configured to:
adopt satisfaction of a predetermined first condition, as a requirement for execution of the filter regeneration control, when the Charge Depleting mode is selected, and to adopt satisfaction of a second condition, as a requirement for execution of the filter regeneration control, when the Charge Sustaining mode is selected, the second condition being satisfied more easily than the first condition, and
determine whether the first condition is satisfied and whether the second condition is satisfied, based on a predetermined parameter that is obtained from a measurement result of an operating state of the engine, wherein a value range of the parameter in which the second condition is satisfied is wider than a value range of the parameter in which the first condition is satisfied.