Abstract: An exhaust purification device includes a casing which accommodates a purifier that purifies exhaust gas of an engine mounted on a vehicle and in which a flow direction of the exhaust gas corresponds to a longitudinal direction of the casing, an inlet opening at a first longitudinal end of the casing, an outlet opening provided at a second longitudinal end of the casing, a first pipe connected to the inlet opening, and a second pipe connected to the outlet opening. A cross section of at least one of a connecting end of the first pipe for the casing and a connecting end of the second pipe for the casing is in a flattened shape as a dimension of the cross section in the longitudinal direction of the casing is shorter than a dimension of the cross section in a lateral direction of the casing.

Abstract: Provided are: a main body (45) made of resin; a fastening counterpart (51) formed integrally with the main body; a metal load-receiving member (43) having an embedded part (46) embedded in the main body, and a shaft part (47) extending from the embedded part; and a reinforcement part (53, 55) having a rib (54, 56) and provided in the main body.

Abstract: An exhaust purification device for an engine comprises a catalyst device that purifies the exhaust gas of the engine by using an additive; a venturi-shaped mixing chamber that is disposed upstream from the catalyst device and extends from a taper portion with a diameter tapering downstream to continue to a constricted portion with a minimum diameter and then to a flared portion with a diameter that is increased in the downstream direction; a swirl-generating device that is disposed in vicinity of a most upstream section of the taper portion of the mixing chamber and generates a swirling flow in the exhaust gas; and an additive-injection device that is disposed upstream from the constricted portion of the mixing chamber and downstream from the swirl-generating device, and injects the additive into the mixing chamber.

Abstract: Disclosed is an exhaust purification device for an internal combustion engine provided with a venturi-shaped mixing chamber (13) upstream of a NOx catalyst (16), said mixing chamber (13) formed continuously from a tapering part (13a) along which the radius decreases in the downstream direction, a waist part (13b) at which the radius is at smallest, and a widening part (13c) along which the radius increases in the downstream direction. A vane plate (18) and an aqueous urea solution spray nozzle (19) are arranged inside the tapering part (13a). The ratio (a/b) of the distance (a) between the vane plate (18) and the center of the waist part (13b) and the distance (b) between the center of the waist part (13b) and the mouth of the NOx catalyst (16) is set between 0.5 and 1.0.

Abstract: An exhaust purification apparatus for an engine has a first casing (17) that is interposed in an exhaust path (13); a second casing (23) that is set downstream of the first casing (17) and contains an exhaust purification device (24); a connecting pipe (22, 41, 51) that connects the first casing and the second casing (23) to each other and includes an insertion portion that is inserted in the first casing (17); and an injection nozzle (27, 52) that has a tip end inserted in the connecting pipe (22, 41, 51) and injects an auxiliary agent from the tip end. The insertion portion of the connecting pipe (22, 41, 51) is provided with a plurality of through-holes (22a, 41a, 41b, 51a) connecting the inside and the outside of the connecting pipe (22, 41, 51), so that the exhaust gas contained in the first casing (17) is introduced into the connecting pipe (22, 41, 51) through the through-holes and guided towards the second casing (23).

Abstract: An ammonia selective reduction-type NOx catalyst (48) is interposed in an exhaust passage of an engine (2) provided in a series-type hybrid electric vehicle (1), and a urea water injector (52) is disposed in the exhaust passage to supply a urea water into exhaust gas existing upstream of the ammonia selective reduction-type NOx catalyst (48). The engine (2) is started and stopped in accordance with the storage state of a battery (8), and the urea water injector (52) is controlled in accordance with the operating state of the engine (2). When the engine (2) is to be stopped, an adsorption increasing operation for increasing the amount of ammonia adsorbed by the ammonia selective reduction-type NOx catalyst (48) is executed over a predetermined period before the engine (2) is stopped.

Abstract: A drive controller for hybrid vehicles, the hybrid vehicle comprising: an engine; a motor which is able to assist the driving force from the engine; an automatic clutch mechanism which is able to engage/disengage the transmission of the driving force between the engine and the motor; an automatic transmission disposed downstream of the motor; a filter for collecting particulates in exhaust gas; and a controller for controlling operations of these devices, wherein the controller operates in such a way that, for regenerating the filter, the idling speed while the vehicle is halted is set higher, and the predetermined rotational speed for initiating the clutch engagement is set higher than the rotational speed at the time of non-regeneration of the filter in light of increase in the engine rotational speed for the fast-idle control.

Abstract: An exhaust purification apparatus for an engine comprises an upstream casing that has a cylindrical shape and accommodates a particulate filter; an exhaust gas outlet that is formed in a side wall of the upstream casing and discharges the exhaust gas that has passed through the particulate filter; a urea-water injector that is fixed to the upstream casing located in a position opposite to the exhaust gas outlet and injects urea-water toward the exhaust gas outlet; and a downstream casing that accommodates an ammonia selective reduction-type NOx catalyst into which the exhaust gas discharged from the exhaust gas outlet flows.

Abstract: An exhaust purification apparatus comprises an ammonia selective reduction-type NOx catalyst that selectively reduces NOx within exhaust gas by using ammonia as a reducing agent, a urea-water supply device that supplies urea-water into the exhaust gas existing upstream of the ammonia selective reduction-type NOx catalyst, and a control unit. The control unit controls the urea-water supply device so that the urea-water is intermittently supplied according to predetermined supply duration time and predetermined supply suspension time when the urea-water is supplied from the urea-water supply device for the purpose of providing ammonia to the ammonia selective reduction-type NOx catalyst.

Abstract: An agitating device for agitating the exhaust gas of an engine includes a base plate having a plurality of through holes that are defined by radially extending spoke portions and a ring-like rim portion and are arranged in a circular pattern in a circumferential direction of the base plate, and a plurality of fins expanding from the respective spokes on a slant with respect to the base plate. The base plate is fixed in the exhaust passage by the rim portion being jointed to the exhaust passage at welded portions. The welded portions are each disposed in an area between respective two adjacent spoke portions in the circumferential direction of the base plate, and an outer edge of the rim portion positioned on the outer side of the rim portion in extending directions of the spoke portions is located next to the exhaust passage with a gap provided therebetween.

Abstract: An exhaust purification apparatus for an engine comprises a selective reduction-type NOx catalyst that is interposed in an exhaust passage of the engine and selectively reduces NOx contained in exhaust gas of the engine, an EGR device that recirculates exhaust gas of the engine to an intake side of the engine, an exhaust-purification-efficiency estimation unit that estimates exhaust purification efficiency of the NOx catalyst with respect to NOx, a target-exhaust-purification-efficiency calculation unit that calculates target exhaust purification efficiency with respect to NOx on the basis of an operational state of the engine, and a control unit that controls the EGR device to compensate a decrease amount of the estimated exhaust purification efficiency to the target exhaust purification efficiency.

Abstract: A hybrid electric vehicle is arranged such that a driving force of an engine and a driving force of an electric motor can be transmitted to driving wheels through an automatic transmission having a plurality of forward gears. When it is detected that the vehicle is in a predetermined state in which it is difficult for the electric motor to output an upper limit torque predetermined as a generable maximum torque, a vehicle ECU controls the automatic transmission using a gear shift map configured such that the automatic transmission is downshifted earlier in accordance with a change in the operating state of the vehicle and upshifted later in accordance with a change in the operating state of the vehicle in comparison with a gear shift map that is used when it is not detected that the vehicle is in the predetermined state.

Abstract: An exhaust purification device for an engine comprises a catalytic device for purifying exhaust by using an additive, a deflecting device for allowing the exhaust to flow through and causing the exhaust to be agitated, upstream of the catalytic device, an additive injection device for injecting an additive, downstream of the deflecting device, a temperature detection device for detecting exhaust temperature, downstream of the deflecting device, and a control unit for controlling the additive injection device on the basis of the exhaust temperature detected by the temperature detection device. The temperature detection device has a temperature detection part located within a region where the exhaust having passed through the deflecting device has increased velocity.

Abstract: A moving-state determining device acquires a first overhead image from a bird's-eye image obtained at first image pickup timing and acquires a second overhead image, which can be regarded as the same road surface area as that of the first overhead image, for each of moving directions assumed for the moving body from a bird's-eye image obtained at second image pickup timing different from the first image pickup timing by a predetermined time period. The device compares a degree of similarity between the first overhead image and each of a plurality of second overhead images to acquire the second overhead image with the largest similarity degree as the same road surface area as that of the first overhead image. The device acquires the moving direction and a lateral displacement amount in the moving from a coordinate conversion condition based on which the second overhead image has been obtained.

Abstract: Disclosed is an exhaust purification device for an internal combustion engine provided with a venturi-shaped mixing chamber (13) upstream of a NOx catalyst (16), said mixing chamber (13) formed continuously from a tapering part (13a) along which the radius decreases in the downstream direction, a waist part (13b) at which the radius is at smallest, and a widening part (13c) along which the radius increases in the downstream direction. A vane plate (18) and an aqueous urea solution spray nozzle (19) are arranged inside the tapering part (13a). The ratio (a/b) of the distance (a) between the vane plate (18) and the center of the waist part (13b) and the distance (b) between the center of the waist part (13b) and the mouth of the NOx catalyst (16) is set between 0.5 and 1.0.

Abstract: An exhaust gas purification device comprises a NOx catalyst for purifying NOx contained in exhaust gas by using ammonia as a reducing agent, an ammonia supply device for supplying ammonia to the NOx catalyst, a catalyst temperature sensor for detecting the internal temperature of the NOx catalyst, and a control unit that stops the ammonia supply from the ammonia supply device when the stop condition is satisfied that the internal temperature of the NOx catalyst becomes equal to or higher than first prescribed temperature in the process where ammonia is supplied from the ammonia supply device to the NOx catalyst.

Abstract: In a common rail internal combustion engine having a pressure increase mechanism, when the pressure increase mechanism is activated, fuel is injected according to a target injection quantity determined by adding an increase in injection quantity calculated depending on a load on a supply pump to a demanded injection quantity.

Abstract: A hybrid electric vehicle is arranged such that a driving force of an electric motor can be transmitted to driving wheels and that a rotary shaft of the electric motor can be coupled with an output shaft of an engine. The vehicle comprises a starter motor provided separately from the electric motor, an electric power source provided separately from a battery that supplies power to the electric motor, to supply power to the starter motor, and a braking force maintaining device configured to be activated by power from the power source to maintain a braking force on the vehicle. When a request for starting the engine is made, if a specified abnormal condition which makes the starting of the engine by the electric motor impracticable is detected, an ECU causes the engine to be started by the starter motor when the braking force maintaining device is not active.

Abstract: An ammonia selective reduction-type NOx catalyst (48) is interposed in an exhaust passage of an engine (2) provided in a series-type hybrid electric vehicle (1), and a urea water injector (52) is disposed in the exhaust passage to supply a urea water into exhaust gas existing upstream of the ammonia selective reduction-type NOx catalyst (48). The engine (2) is started and stopped in accordance with the storage state of a battery (8), and the urea water injector (52) is controlled in accordance with the operating state of the engine (2). When the engine (2) is to be stopped, an adsorption increasing operation for increasing the amount of ammonia adsorbed by the ammonia selective reduction-type NOx catalyst (48) is executed over a predetermined period before the engine (2) is stopped.

Abstract: In a control system for a hybrid electric vehicle equipped with an engine and an electric motor, when it is judged that the vehicle is in a preset state where torque required in the electric motor is zero, storage-rate retention control is carried out by causing the electric motor to generate minute torque having an absolute value smaller than the torque of the electric motor, which is required for a forced charge or discharge.