# US 2025/0084809 A1 · Internal combustion engine control device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0084809 A1 - Document ID: US20250084809A1 - Status: Published application - Kind: A1 - Application number: 18/731,566 - Filed: 2024-06-03 - Published: 2025-03-13 - Earliest claimed: 2023-09-07 - Assignees: Toyota Jidosha Kabushiki Kaisha - Applicants: Toyota Jidosha Kabushiki Kaisha - Inventors: Tomoya OSHIMA; Masayoshi Nakagawa - Web page: https://patentgrep.com/patent/US20250084809A1 ## CPC - F02M 26/05: High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor - F02B 29/0406: {Layout of the intake air cooling or coolant circuit} - F02D 19/0644: {the gaseous fuel being hydrogen, ammonia or carbon monoxide} - F02D 41/0025: {Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures} - F02D 41/0027: {the fuel being gaseous (non-electrical control F02D19/02)} - F02D 41/005: {according to engine operating conditions} - F02M 26/06: Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor - F02M 26/23: Layout, e.g. schematics - F02M 26/35: with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters - F02D 2200/0418: Air humidity - F02D 2200/1002: Output torque - F02D 2200/101: Engine speed - F02D 2200/50: said parameters being related to the vehicle or its components - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF - F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G) - 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 When EGR gases are introduced into the intake passage through EGR passage, the control device determines whether or not the condensed water is generated in the merging portion of the intake passage, which is the portion to which EGR passage is connected. The control device determines whether or not the internal combustion engine is in a high-load operation based on the engine speed and the engine torque. The control device determines that the condensed water is generated in the merging portion of the intake passage, and reduces the amount of the condensed water collected by the collection device when the internal combustion engine is determined to be in a high-load operation. ## Claims ### Claim 1 An internal combustion engine control device to be applied to an internal combustion engine including a cylinder, an intake passage through which air introduced into the cylinder flows, an exhaust passage through which exhaust gas discharged from the cylinder flows, and an exhaust gas recirculation device configured to recirculate, into the intake passage, part of the exhaust gas flowing through the exhaust passage as exhaust gas recirculation gas, the internal combustion engine being configured such that gaseous fuel is supplied into the cylinder, wherein: the exhaust gas recirculation device includes an exhaust gas recirculation passage that is connected to the intake passage and through which the exhaust gas recirculation gas flows toward the intake passage, and a collection device configured to collect condensed water generated in the exhaust gas recirculation passage; and the internal combustion engine control device is configured to determine, when the exhaust gas recirculation gas is introduced into the intake passage via the exhaust gas recirculation passage, whether condensed water is generated in a joining portion of the intake passage to which the exhaust gas recirculation passage is connected, determine whether the internal combustion engine is in a high-load operation based on a rotational speed of an output shaft of the internal combustion engine and an output torque of the internal combustion engine, and reduce an amount of collection of the condensed water by the collection device when determination is made that the condensed water is generated in the joining portion of the intake passage and the internal combustion engine is in the high-load operation. ### Claim 2 (depends on 1) The internal combustion engine control device according to claim 1, wherein: the internal combustion engine includes a turbocharger including a turbine provided in the exhaust passage and a compressor configured to operate in synchronization with the turbine and provided in the intake passage, and an intercooler disposed downstream of the compressor in the intake passage and configured to cool air flowing through the intake passage; the exhaust gas recirculation device includes an exhaust gas recirculation cooler disposed upstream of the collection device in the exhaust gas recirculation passage and configured to cool the exhaust gas recirculation gas flowing through the exhaust gas recirculation passage; the joining portion is positioned at a portion of the intake passage upstream of the intercooler; and the internal combustion engine control device is configured to determine whether a compressor rotational speed that is a rotational speed of the compressor is higher than a determination rotational speed, and when determination is made that the condensed water is generated in the joining portion, the internal combustion engine is in the high-load operation, and the compressor rotational speed is higher than the determination rotational speed, reduce an efficiency of cooling of the exhaust gas recirculation gas by the exhaust gas recirculation cooler as compared with a case where determination is made that the compressor rotational speed is equal to or lower than the determination rotational speed. ### Claim 3 (depends on 2) The internal combustion engine control device according to claim 2, wherein the internal combustion engine control device is configured to reduce the amount of collection of the condensed water by the collection device when determination is made that the condensed water is generated in the joining portion, the internal combustion engine is in the high-load operation, and the compressor rotational speed is equal to or lower than the determination rotational speed. ### Claim 4 (depends on 2) The internal combustion engine control device according to claim 2, wherein the internal combustion engine control device is configured to: determine whether condensed water is generated in the intake passage due to cooling by the intercooler; and when determination is made that the condensed water is not generated in the joining portion, the condensed water is generated in the intake passage due to the cooling by the intercooler, and the internal combustion engine is not in the high-load operation, increase the efficiency of cooling of the exhaust gas recirculation gas by the exhaust gas recirculation cooler as compared with a case where determination is made that the internal combustion engine is in the high-load operation.