US 11,808,224 B2
Vehicle controller, vehicle control method, and memory medium
Kentaro Sakagami, Toyota (JP); and Shinichi Taniguchi, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken (JP)
Filed on Mar. 30, 2023, as Appl. No. 18/192,654.
Claims priority of application No. 2022-062476 (JP), filed on Apr. 4, 2022.
Prior Publication US 2023/0313749 A1, Oct. 5, 2023
Int. Cl. F02D 41/00 (2006.01)
CPC F02D 41/0007 (2013.01) [F02D 2250/08 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A vehicle controller employed in a vehicle that includes an internal combustion engine, the vehicle controller comprising execution circuitry configured to execute:
a valve-closed determination process that determines whether a PCV valve of a blow-by gas processing device is closed, wherein
a forced-induction device of the internal combustion engine includes a turbine disposed on an exhaust passage and a compressor disposed on an intake passage of the internal combustion engine,
the blow-by gas processing device includes a supply passage through which blow-by gas is supplied to the intake passage,
the supply passage includes a first passage and a second passage, the first passage being connected to a portion of the intake passage downstream of the compressor, and the second passage being connected to a portion of the intake passage upstream of the compressor,
the PCV valve is located on the first passage,
the first passage includes a connection portion connected to the intake passage,
a portion of the first passage between the connection portion and the PCV valve is a passage downstream portion, and
the PCV valve is closed when pressure in the passage downstream portion becomes greater than or equal to a specified pressure;
a supercooling determination process that determines whether the supply passage is supercooled by relative wind of the vehicle based on a travel speed of the vehicle; and
an operating state changing process that sets the pressure in the passage downstream portion to be less than the specified pressure by setting operation of the internal combustion engine to non-boosting operation when a condition in which an ambient temperature of the vehicle is less than or equal to a determination temperature, a condition in which the PCV valve is determined as being closed through the valve-closed determination process, and a condition in which the supply passage is determined as being supercooled through the supercooling determination process are all satisfied, wherein
boosting operation is operation of the internal combustion engine in which intake air flowing through the intake passage is pressurized using the forced-induction device, and
the non-boosting operation is operation of the internal combustion engine in which the intake air is not pressurized using the forced-induction device.