Vehicle and control method for vehicle

Patent metadata

Field	Value
Publication number	US-10480381-B2
Application number	US-201715804124-A
Country	US
Kind code	B2
Filing date	Nov 6, 2017
Priority date	Dec 6, 2016
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A vehicle includes: an internal combustion engine; a filter collecting particulate matter contained in exhaust gas of the internal combustion engine; a heater core configured to be able to heat up a vehicle cabin; and an electronic control unit. The electronic control unit is configured to execute regeneration cut control and heating control. The regeneration cut control is a control for regenerating the filter by stopping a fuel supply to the internal combustion engine and supplying oxygen to the filter in a state where an output shaft of the internal combustion engine rotates. The heating control is a control for bringing the internal combustion engine into a combustion state and heating by the heater core. The electronic control unit is configured not to execute the heating control but to execute the regeneration cut control when the heating control is requested and the regeneration cut control is requested.

First claim

What is claimed is:

1. A vehicle comprising:
an internal combustion engine;
a filter configured to collect particulate matter contained in exhaust gas of the internal combustion engine;
a heater configured to be able to heat up a vehicle cabin by using exhaust heat of the internal combustion engine; and
an electronic control unit configured to execute regeneration cut control and heating control, the regeneration cut control being a control for regenerating the filter by stopping a fuel supply to the internal combustion engine and supplying oxygen to the filter in a state where an output shaft of the internal combustion engine rotates, and the heating control being a control for bringing the internal combustion engine into a combustion state and heating by the heater using exhaust heat of the internal combustion engine, the electronic control unit being configured to execute the heating control when the heating control is requested and not to execute the heating control but to execute the regeneration cut control when the heating control is requested and the regeneration cut control is requested.

2. The vehicle according to claim 1 further comprising:
a first rotary electric machine connected to the internal combustion engine, wherein
the electronic control unit is configured to stop the fuel supply to the internal combustion engine and make the output shaft of the internal combustion engine rotate by using power of the first rotary electric machine when executing the regeneration cut control.

3. The vehicle according to claim 2 further comprising:
a drive wheel; and
a second rotary electric machine connected to the drive wheel, wherein
the electronic control unit is configured to make the drive wheel rotate by using power of the second rotary electric machine during execution of the regeneration cut control.

4. A control method for a vehicle,
the vehicle including an internal combustion engine, a filter, a heater, and an electronic control unit,
the filter configured to collect particulate matter contained in exhaust gas of the internal combustion engine,
the heater configured to be able to heat up a vehicle cabin by using exhaust heat of the internal combustion engine, and
the electronic control unit configured to execute regeneration cut control and heating control,

the control method comprising:
executing, by the electronic control unit, the heating control when the heating control is requested; and
not executing, by the electronic control unit, the heating control but executing the regeneration cut control when the heating control is requested and the regeneration cut control is requested,
the regeneration cut control being a control for regenerating the filter by stopping a fuel supply to the internal combustion engine and supplying oxygen to the filter in a state where an output shaft of the internal combustion engine rotates, and the heating control being a control for bringing the internal combustion engine into a combustion state and heating by the heater using exhaust heat of the internal combustion engine.

Assignees

• Toyota Motor Co Ltd

Inventors

• Suzuki Tomoya
• Suzuki Takashi
• Matsumura Mitsuyori

Classifications

• F01N2430/00

  Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics · CPC title

• F01N2590/11

  for hybrid vehicles · CPC title

• F01N2900/10

  said parameters being related to the vehicle or its components · CPC title

• F01N2900/1404

  Exhaust gas temperature · CPC title

• B60H1/025

  from both the cooling liquid and the exhaust gases of the propulsion plant · CPC title