# US 2023/0407801 A1 · Control device of vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0407801 A1 - Document ID: US20230407801A1 - Status: Published application - Kind: A1 - Application number: 18/134,294 - Filed: 2023-04-13 - Published: 2023-12-21 - Earliest claimed: 2022-06-15 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Yuto IKEDA; Ryota SUGIYAMA; Takanobu GOTOH - Web page: https://patentgrep.com/patent/US20230407801A1 ## CPC - F02D 41/0087: {Selective cylinder activation, i.e. partial cylinder operation (deceleration cut-off F02D41/123)} - F02D 41/0097: {using means for generating speed signals} - F02D 41/024: {to increase temperature of the exhaust gas treating apparatus} - F02D 41/027: {to purge or regenerate the exhaust gas treating apparatus} - F02D 41/3094: {the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder} - F02D 2200/02: the parameters being related to the engine - F02D 2200/0812: Particle filter loading - F02D 2250/12: Timing of calculation, i.e. specific timing aspects when calculation or updating of engine parameter is performed - 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) ## Abstract The vehicle control device executes: a stop process for stopping fuel supply to two cylinders to be stopped; and a selection process of selecting one cylinder to be a stop instruction for stopping fuel supply from among the cylinders to be stopped. The selection process is a process of selecting a cylinder whose compression top dead center appears earliest among the stop target cylinders. The crank angle interval from when the cylinder to be the stop instruction target is selected until the stop instruction target cylinder is switched to the next cylinder among the stop target cylinders is the stoppable angle interval. The stop instruction for the selected cylinder is received before the fuel injection start time and at the stoppable angle interval. The control device executes a retard process of retarding the fuel injection start timing so that the stoppable angle interval includes the fuel injection start timing. ## Claims ### Claim 1 A control device of a vehicle including art internal combustion engine having a plurality of cylinders, the control device comprising a processing circuit, wherein the processing circuit is configured such that: the processing circuit executes a stop process of stopping a fuel supply to two or more cylinders of the plurality of cylinders and supplying fuel to a remaining one or more cylinders; each of the plurality of cylinders repeatedly executes a combustion cycle such that a compression top dead center of the plurality of cylinders sequentially appears, an operation from a start of an expansion stroke to an end of a compression stroke being the combustion cycle; and the processing circuit executes a selection process before the stop process, one cylinder that is a target of a stop instruction for stopping the fuel supply among stop target cylinders being selected in the selection process, every time the compression top dead center appears in any stop target cylinder in which the fuel supply is stopped; the selection process is a process of selecting a cylinder in which a compression top dead center appears earliest among the stop target cylinders at the time of execution of the selection process, a crank angle interval from when the cylinder to be subjected to the stop instruction is selected to when the cylinder to be subjected to the stop instruction is switched to the next cylinder among the stop target cylinders is a stoppable angle interval, and the stop instruction for the selected cylinder is received during the combustion cycle and before a fuel injection start timing and during the stoppable angle interval; and the processing circuit executes a lag process in which the fuel injection start timing lags such that the stoppable angle interval includes the fuel injection start timing. ### Claim 2 (depends on 1) The control device according to claim 1, wherein the internal combustion engine includes a plurality of intake ports connected to each of the plurality of cylinders, a plurality of port injection valves provided in each of the plurality of intake ports, and a plurality of in-cylinder injection valves provided in each of the plurality of cylinders, wherein each of the plurality of port injection valves is configured to execute a port injection of injecting fuel into a corresponding intake port of the plurality of intake ports, wherein each of the plurality of in-cylinder injection valves is configured to execute an in-cylinder injection of injecting fuel into a corresponding cylinder of the plurality of cylinders, and wherein the processing circuit is configured to execute the lag process by changing a fuel injection mode in the stop target cylinder from a port injection mode to an in-cylinder injection mode. ### Claim 3 (depends on 1) The control device according to claim 1, wherein the internal combustion engine includes a plurality of intake ports connected to each of the plurality of cylinders, and a plurality of port injection valves provided in each of the plurality of intake ports, wherein each of the plurality of port injection valves is configured to perform a port injection of injecting fuel into a corresponding intake port of the plurality of intake ports, and wherein the processing circuit is configured to execute the lag process by making an injection start timing of the port injection in the stop target cylinder lag. ### Claim 4 (depends on 1) The control device according to claim 1, wherein the vehicle includes, a motor generator, wherein the processing circuit is configured to control the internal combustion engine and the motor generator such that the internal combustion engine and the motor generator cooperate to generate an output torque required for the vehicle, and wherein the processing circuit is configured to execute together with the stop process, a compensation process for compensating, through the motor generator, a decrease in an output torque of the internal combustion engine caused by the stop process. ### Claim 5 (depends on 1) The control device according to claim 1, wherein the number of the plurality of cylinders is six, wherein the stop process is a process of stopping the fuel supply to the stop target cylinder that is two cylinders of the plurality of cylinders, and supplying fuel to the remaining four cylinders, wherein an arrival timing of the compression top dead center in one of the stop target cylinders is separated by 360 degrees of a crank angle from an arrival timing of an compression top dead center in another one of the stop target cylinders, wherein the selection process is a process of alternately selecting one cylinder to be a target for a stop instruction for stopping the fuel supply among the stop target cylinders, every 360 degrees of the crank angle, and wherein the lag process is a process of making the fuel injection start timing lag such that the fuel injection start timing is included in the stoppable angle interval from a timing 360 degrees in the crank angle before the arrival timing of the compression top dead center to the arrival timing of the compression top dead center.