摘要:
A supercharger control device for an internal combustion engine is preferably applied to a system having a first supercharger and a second supercharger. A switching supercharging pressure setting unit sets a switching supercharging pressure used in case of switching a mode for operating the first supercharger and the second supercharger, based on a difference between a target supercharging pressure and an actual supercharging pressure. When the actual supercharging pressure reaches the switching supercharging pressure, a switching control unit performs a control of switching the mode. Therefore, it becomes possible to appropriately prevent the overshoot of the supercharging pressure at the time of switching the mode.
摘要:
In the cylinder block of an engine including a heat storage apparatus, a water jacket is formed between a cylinder bore wall that forms a cylinder bore and a cylinder block outer wall. An actuator is installed on the cylinder block outer wall. A container is housed in the water jacket. A coolant temperature sensor is installed on the upper portion of the container. An ECU determines the state of a heat storage agent in the container and the state of the container, based on information on the temperature of coolant determined by the coolant temperature sensor.
摘要:
An oil pan separator 132 is disposed so as to divide a space within an oil pan 130 into a first chamber 30a and a second chamber 30b. The oil pan separator 132 has a protrusion 132b formed at a low position in such a manner that a portion of the first chamber 30a protrudes into the second chamber 30b. A protrusion upper-plate 132b1, which serves as an upper end portion of the protrusion 132b, is provided with an oil feed valve 138, which is a one-way valve, for allowing substantially only outflow of oil from the first chamber 30a to the second chamber 30b.
摘要:
A hydraulic control apparatus (1) is provided with an oil pump (4) that draws oil from an oil pan (3) due to the rotation of the crankshaft, a piston jet (6) that open when the hydraulic pressure of the oil that has been drawn from this oil pump (4) attains a valve opening pressure Qa and injects oil toward a piston through an oil injection path (5), a relief valve (8) that is disposed on an oil return path (7) and opens when the hydraulic pressure of the oil that has been drawn by the oil pump (4) has attained a valve opening pressure Qb, and a switching valve (9) that is disposed on the oil return path (7). The valve opening pressure Qb is set to a pressure that is lower than that of the valve opening pressure Qa.
摘要:
An exhaust gas control system for an internal combustion engine, before execution of a filter regeneration process, executes a pre-regeneration process that is a process of raising a temperature of a filter to a second target temperature lower than a first target temperature and increasing the concentration of NO 2 contained in exhaust gas flowing into the filter for a predetermined period. The first target temperature during execution of the filter regeneration process in the case where a speed of change in a detected value of a differential pressure sensor during execution of the pre-regeneration process is high is set so as to be lower than the first target temperature in the case where the speed of change is low.
摘要:
An exhaust emission control system of an internal combustion engine includes a filter (4), a temperature raising device (3), a differential pressure detecting device (8), and an electronic control unit (20). The filter (4) includes a first region as a part of the filter (4), and a second region as another part of the filter (4). The electronic control unit (20) is configured to calculate a first deposition amount such that a calculated deposition amount is larger as a proportion of a magnitude of the first differential pressure reduction amount to the length of the first oxidation period is larger. The electronic control unit (20) is configured to calculate an amount of the particulate matter deposited in the second region based on a length of the second oxidation period and a second differential pressure reduction amount.
摘要:
An oil pan separator (132) is arranged so as to divide the inner space of an oil pan (130) into a first chamber (30a) and a second chamber (30b). At a lower position of the oil pan separator (132), a protrusion (132b) is formed in such a manner that the first chamber (30a) protrudes toward the second chamber (30b). An oil supply valve (138) which is a one-directional valve permitting oil flow substantially only from the first chamber (30a) into the second chamber (30b) is arranged on a protrusion upper plate (132b1) constituting the upper portion of the protrusion (132b).