Abstract: A heat accumulation and dissipation device (1) for an internal combustion engine (2) includes, in a cooling circuit (3) for circulating cooling water used to cool the internal combustion engine (2), a heat accumulator (7) for accumulating the cooling water, and an exhaust heat recovery device (9) for recovering the heat of exhaust gas through the cooling water, wherein when the internal combustion engine (2) is started, heat is dissipated by sending the cooling water of the heat accumulator (7) to the internal combustion engine (2). The cooling circuit (3) includes a heat accumulation and dissipation circuit (8) configured to perform heat accumulation and dissipation while circulating the cooling water between the internal combustion engine (2) and the heat accumulator (7), and the heat accumulator (9) is arranged upstream of the heat accumulator (7) of the heat accumulation and dissipation circuit (8).

Abstract: A thermal management system of a vehicle includes: a cooling circuit in which cooling water circulates; a heat accumulator storing the cooling water; a flow control valve adjusting a flow rate of the cooling water flowing to the heat accumulator; a radiator; a thermostatic valve adjusting the flow rate of the cooling water flowing to the radiator; a grille shutter adjusting amount of outside air introduced from a front grille into an engine room; a cooling water temperature sensor; a heat radiation control unit supplying the cooling water to the cooling circuit to warm up an engine when the engine is cold; and a heat storage control unit, by controlling opening degrees of the flow control valve and the grille shutter according to a cooling water temperature, supplying from the cooling circuit to the heat accumulator the cooling water whose temperature is raised by heat of the engine.

Abstract: A control device of an internal-combustion engine capable of improving merchantability by promptly and appropriately securing an in-cylinder fresh air amount even when an internal-combustion engine including a boost device and an EGR device is in a transient operation state is provided. A control device 1 includes an ECU 2. The ECU 2 calculates an intake air amount GGAScyl, sets an upper-limit target fresh air amount GAIR_hisH, controls a boost operation of a boost device 7 when an operating range of an internal-combustion engine 3 is in a predetermined boost range, and controls an EGR device 5 so that exhaust gas recirculation is stopped when the intake air amount GGAScyl does not reach an upper-limit target fresh air amount GAIR_hisH and the exhaust gas recirculation is executed when the intake air amount GGAScyl reaches the upper-limit target fresh air amount GAIR_hisH in the predetermined boost range.

Abstract: A cooling system for a vehicle, includes a first cooling circuit including a first coolant passage and a first pump. The first pump is provided in the first coolant passage to circulate coolant in the first cooling circuit so as to cool a first device to a first temperature. A second cooling circuit includes a second coolant passage and a second pump. The second pump is provided in the second coolant passage to circulate coolant in the second cooling circuit so as to cool a second device to a second temperature. The second temperature is lower than the first temperature. The coolant introduction passage connects the first cooling circuit and a connected portion of the second cooling circuit between the second device and a second radiator and upstream of the second device to supply the coolant in the first cooling circuit to the second cooling circuit.

Abstract: Provided is a control device for an internal combustion engine, which can ensure a stable combustion state of the internal combustion engine even under a high-humidity environment condition, thereby improving the merchantability. The control device for the internal combustion engine includes an ECU (electronic control unit). The ECU calculates a basic target EGR amount according to an operating state of the internal combustion engine, calculates a water vapor amount in air drawn into an intake passage of the internal combustion engine, calculates an EGR conversion amount by using the water vapor amount, calculates a target EGR amount by subtracting the EGR conversion amount from the basic target EGR amount, and controls internal EGR and external EGR of the internal combustion engine by using the target EGR amount.

Abstract: The thermal management system includes a cooling circuit in which cooling water circulates, a heat exchange circuit in which cooling water performing heat exchange with a battery flows, a flow rate control valve which adjusts a flow rate of cooling water flowing from the cooling circuit to the heat exchange circuit, a shutter which adjusts an introduction amount of outside air into an engine room, and an ECU which controls an opening degree of the flow rate control valve and an opening degree of the shutter. The ECU controls the shutter and the flow rate control valve to be in a fully closed state when a cooling water temperature is less than a valve opening temperature of a thermostat valve and controls the shutter and the flow rate control valve to be in an open state when the cooling water temperature is greater than the valve opening temperature.

Abstract: A thermal management system of a vehicle includes: a cooling circuit in which cooling water circulates; a heat accumulator storing the cooling water; a flow control valve adjusting a flow rate of the cooling water flowing to the heat accumulator; a radiator; a thermostatic valve adjusting the flow rate of the cooling water flowing to the radiator; a grille shutter adjusting amount of outside air introduced from a front grille into an engine room; a cooling water temperature sensor; a heat radiation control unit supplying the cooling water to the cooling circuit to warm up an engine when the engine is cold; and a heat storage control unit, by controlling opening degrees of the flow control valve and the grille shutter according to a cooling water temperature, supplying from the cooling circuit to the heat accumulator the cooling water whose temperature is raised by heat of the engine.

Abstract: In a control device of an internal-combustion engine according to the disclosure, an intake throttle valve (25) for adjusting an EGR valve differential pressure (?PEGR) is provided, an EGR valve upstream pressure (PEGR0) is estimated by using a target fresh air amount (GAIRCMD) (step 6), a target differential pressure (?PEGRCMD) is set to a smaller value as the target fresh air amount (GAIRCMD) becomes smaller (FIG. 5), and a difference between the EGR valve upstream pressure (PEGR0) and the target differential pressure (?PEGRCMD) is set as a target valve downstream pressure (P1CMD) (step 7). By using the target fresh air amount (GAIRCMD), the EGR valve upstream pressure (PEGR0), and the target valve downstream pressure (P1CMD), the target EGR valve opening degree (LEGRCMD) is set (step 23), and an EGR valve (43) is controlled based on the target EGR valve opening degree (step 24).

Abstract: A control apparatus 1 for the engine includes an ECU. When the operating region of the engine is in the EGR execution region B, the ECU performs the EGR control (step 2), and performs first coolant temperature control for controlling an IC coolant temperature TWic such that the temperature of intake air passing through an intercooler exceeds a dew-point temperature (step 14). Further, in a case where the operating region of the engine is in the EGR stop region C, the ECU performs second coolant temperature control for controlling the IC coolant temperature TWic such that the temperature of intake air having passed through the intercooler exceeds the dew-point temperature, assuming that the operating region of the engine has shifted to the EGR execution region B (step 17).

Abstract: Out of connection passages connecting the engine cooling circuit and the intercooler cooling circuit, a coolant inflow passage is connected between downstream of a mechanical pump and also upstream of a main radiator of the engine cooling circuit, and downstream of a sub radiator and also upstream of an electric pump of the intercooler cooling circuit, and a coolant outflow passage is connected between downstream of the electric pump and also upstream of the sub radiator of the intercooler cooling circuit, and downstream of the mechanical pump and also upstream of the main radiator of the engine cooling circuit. An inter-cooling circuit valve is provided in the coolant inflow passage.

Abstract: A control apparatus 1 for the engine includes an ECU. When the operating region of the engine is in the EGR execution region B, the ECU performs the EGR control (step 2), and performs first coolant temperature control for controlling an IC coolant temperature TWic such that the temperature of intake air passing through an intercooler exceeds a dew-point temperature (step 14). Further, in a case where the operating region of the engine is in the EGR stop region C, the ECU performs second coolant temperature control for controlling the IC coolant temperature TWic such that the temperature of intake air having passed through the intercooler exceeds the dew-point temperature, assuming that the operating region of the engine has shifted to the EGR execution region B (step 17).

Abstract: Provided is a control device for an internal combustion engine, which can ensure a stable combustion state of the internal combustion engine even under a high-humidity environment condition, thereby improving the merchantability. The control device for the internal combustion engine includes an ECU (electronic control unit). The ECU calculates a basic target EGR amount according to an operating state of the internal combustion engine, calculates a water vapor amount in air drawn into an intake passage of the internal combustion engine, calculates an EGR conversion amount by using the water vapor amount, calculates a target EGR amount by subtracting the EGR conversion amount from the basic target EGR amount, and controls internal EGR and external EGR of the internal combustion engine by using the target EGR amount.

Abstract: In a control device of an internal-combustion engine according to the disclosure, an intake throttle valve (25) for adjusting an EGR valve differential pressure (?PEGR) is provided, an EGR valve upstream pressure (PEGR0) is estimated by using a target fresh air amount (GAIRCMD) (step 6), a target differential pressure (?PEGRCMD) is set to a smaller value as the target fresh air amount (GAIRCMD) becomes smaller (FIG. 5), and a difference between the EGR valve upstream pressure (PEGR0) and the target differential pressure (?PEGRCMD) is set as a target valve downstream pressure (P1CMD) (step 7). By using the target fresh air amount (GAIRCMD), the EGR valve upstream pressure (PEGR0), and the target valve downstream pressure (P1CMD), the target EGR valve opening degree (LEGRCMD) is set (step 23), and an EGR valve (43) is controlled based on the target EGR valve opening degree (step 24).

Abstract: A control device of an internal-combustion engine capable of improving merchantability by promptly and appropriately securing an in-cylinder fresh air amount even when an internal-combustion engine including a boost device and an EGR device is in a transient operation state is provided. A control device 1 includes an ECU 2. The ECU 2 calculates an intake air amount GGAScyl, sets an upper-limit target fresh air amount GAIR_hisH, controls a boost operation of a boost device 7 when an operating range of an internal-combustion engine 3 is in a predetermined boost range, and controls an EGR device 5 so that exhaust gas recirculation is stopped when the intake air amount GGAScyl does not reach an upper-limit target fresh air amount GAIR_hisH and the exhaust gas recirculation is executed when the intake air amount GGAScyl reaches the upper-limit target fresh air amount GAIR_hisH in the predetermined boost range.

Abstract: A cooling system for a vehicle, includes a first cooling circuit including a first coolant passage and a first pump. The first pump is provided in the first coolant passage to circulate coolant in the first cooling circuit so as to cool a first device to a first temperature. A second cooling circuit includes a second coolant passage and a second pump. The second pump is provided in the second coolant passage to circulate coolant in the second cooling circuit so as to cool a second device to a second temperature. The second temperature is lower than the first temperature. The coolant introduction passage connects the first cooling circuit and a connected portion of the second cooling circuit between the second device and a second radiator and upstream of the second device to supply the coolant in the first cooling circuit to the second cooling circuit.

Abstract: Out of connection passages connecting the engine cooling circuit and the intercooler cooling circuit, a coolant inflow passage is connected between downstream of a mechanical pump and also upstream of a main radiator of the engine cooling circuit, and downstream of a sub radiator and also upstream of an electric pump of the intercooler cooling circuit, and a coolant outflow passage is connected between downstream of the electric pump and also upstream of the sub radiator of the intercooler cooling circuit, and downstream of the mechanical pump and also upstream of the main radiator of the engine cooling circuit. An inter-cooling circuit valve is provided in the coolant inflow passage.

Abstract: A cooling control system for an internal combustion engine, which is capable of circulating engine coolant while suppressing power consumption by an engine coolant pump as much as possible. The cooling control system is provided for cooling intake gases increased in temperature by being pressurized by a supercharger. The engine coolant pump of the electrically-driven type delivers engine coolant to thereby cause the same to circulate. An ECU controls, when a difference between the temperature of the engine coolant and a first target temperature is not larger than a first predetermined value, the amount of the engine coolant to be delivered to a predetermined minimum flow rate, and controls, when the difference is larger than the first predetermined value, the amount of the engine coolant to be delivered such that it becomes larger as the difference is larger.

Abstract: A cooling control apparatus for an internal combustion engine with a supercharger includes an internal combustion engine cooling circuit, an inhaled gas cooling circuit, a cooling water introducing passage, an overcooling determination device, and a temperature-decrease controller. The overcooling determination device is to determine whether the internal combustion engine is overcooled based on a decrease in temperature of cooling water in the internal combustion engine cooling circuit. The temperature-decrease controller is to control an amount of the cooling water flowing from the internal combustion engine cooling circuit to the inhaled gas cooling circuit via the cooling water introducing passage to control the decrease in the temperature of the cooling water in the internal combustion engine cooling circuit in a case where the overcooling determination device determines that the internal combustion engine is overcooled.

Abstract: A cooling control system for an internal combustion engine, which is capable of circulating engine coolant while suppressing power consumption by an engine coolant pump as much as possible. The cooling control system is provided for cooling intake gases increased in temperature by being pressurized by a supercharger. The engine coolant pump of the electrically-driven type delivers engine coolant to thereby cause the same to circulate. An ECU controls, when a difference between the temperature of the engine coolant and a first target temperature is not larger than a first predetermined value, the amount of the engine coolant to be delivered to a predetermined minimum flow rate, and controls, when the difference is larger than the first predetermined value, the amount of the engine coolant to be delivered such that it becomes larger as the difference is larger.

Abstract: A control system for an internal combustion engine where when the engine is decelerating the amount of intake air supplied to a combustion chamber is controlled. A target auxiliary intake air amount SAIRCMD necessary for preventing misfiring of the engine by supplying only an auxiliary intake air amount to a combustion chamber and a target intake air amount GAIRCMD which is a target value of the amount of intake air supplied to the combustion chamber are calculated according to the state NE, AP of the engine. When the engine is decelerating, and misfires, misfire avoidance control is executed controlling an auxiliary intake air amount control valve to be more opened such that the auxiliary intake air amount becomes the target auxiliary intake air amount SAIRCMD and a throttle valve to be more closed such that the amount of intake air supplied to the combustion chamber becomes the target intake air amount GAIRCMD.