| MITSUBISHI FUSO TRUCK AND BUS CORPORATION Patent applications |
| Patent application number | Title | Published |
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| 20110088375 | EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - Disclosed is an exhaust purification device for an internal combustion engine provided with a venturi-shaped mixing chamber ( | 04-21-2011 |
| 20100313854 | FUEL INJECTION CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE - 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. | 12-16-2010 |
| 20100268438 | EXHAUST PURIFICATION DEVICE FOR HYBRID ELECTRIC VEHICLE - An ammonia selective reduction-type NOx catalyst ( | 10-21-2010 |
| 20100251698 | EXHAUST PURIFICATION SYSTEM FOR HYBRID ELECTRIC VEHICLE - An ammonia selective reduction-type NOx catalyst ( | 10-07-2010 |
| 20100242878 | VARIABLE VALVE APPARATUS FOR INTERNAL COMBUSTION ENGINE - In order to simultaneously exert a plurality of functions such as execution of internal EGR, application of engine braking, improvement in fuel consumption and purification of exhaust gas, a variable valve apparatus for an internal combustion engine of the invention includes a cam shaft arranged to be rotatable on a cylinder head of the internal combustion engine, a rocker shaft arranged to be capable of oscillation in the internal combustion engine, a continuous variable rocker arm mechanism which is driven by a cam formed on the cam shaft, opens or closes air intake valves and exhaust valves, and continuously makes a lift of the valves variable, and a switching rocker arm mechanism which is driven by the cam formed on the cam shaft, opens or closes the air intake valves and the exhaust valves, and switches the lift of the valves in a stepwise manner. | 09-30-2010 |
| 20100242443 | EXHAUST AFTERTREATMENT DEVICE - When an estimated value (A value) of an accumulation amount in a filter for trapping particulate matter reaches a prescribed value A | 09-30-2010 |
| 20100218486 | EXHAUST GAS PURIFICATION DEVICE - An exhaust gas purification device includes a NO | 09-02-2010 |
| 20100107612 | EXHAUST PURIFICATION APPARATUS FOR AN ENGINE - An exhaust purification apparatus for an engine has a first casing ( | 05-06-2010 |
| 20100088001 | VEHICULAR CRUISE CONTROL APPARATUS - The object is to allow a vehicle at a constant target cruising speed without making the occupants feel discomfort. | 04-08-2010 |
| 20090193904 | SENSOR ABNORMALITY DETECTION APPARATUS AND SENSOR ABNORMALITY DETECTION METHOD - A filter upstream-side pressure sensor detects the pressure on an upstream side of a filter. A filter downstream-side pressure calculating device subtracts an actual measurement value of the pressure difference between the upstream side and the downstream side of the filter from a pressure value on the upstream side of the filter. Based on this subtraction, the filter downstream-side pressure calculating device calculates a pressure value on the downstream side of the filter. A filter downstream-side pressure estimating device estimates a pressure value on the downstream side of the filter. An abnormality detection device compares the difference between the calculated pressure value and the estimated pressure value with a threshold. If the difference exceeds the threshold, it is determined that at least one of a differential pressure sensor and the filter upstream-side pressure sensor is not working normally. | 08-06-2009 |
| 20090165447 | EXHAUST PURIFICATION DEVICE FOR ENGINE - 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. | 07-02-2009 |
| 20090158710 | EXHAUST PURIFICATION APPARATUS FOR ENGINE - 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. | 06-25-2009 |
| 20090145111 | PROBLEM DETECTION APPARATUS AND METHOD IN EXHAUST PURIFYING APPARATUS - An exhaust purifying apparatus is provided with a filter located in an exhaust path of an internal combustion engine and configured to collect particulates in exhaust gas. The exhaust purifying apparatus is also provided with a differential pressure sensor which detects the pressure difference generated between the upstream side and downstream side of the filter. The problem detection apparatus of the exhaust purifying apparatus is provided with a differential pressure calculation unit and a judgment unit. The differential pressure calculation unit calculates the pressure difference between the upstream and downstream sides of the filter based on the operating state of the internal combustion engine. The judgment unit calculates a difference P between an actual measurement value of the pressure difference and a calculation differential pressure value compares the difference P with a threshold value, and detects that the filter has a problem. | 06-11-2009 |
| 20090118978 | COMBUSTION CONTROL SYSTEM OF A DIESEL ENGINE - A combustion control system of a diesel engine, which controls a fuel-injection timing by switching from one to another of a normal combustion mode, a premix combustion mode, and a transition mode of between these modes, and switches from the normal combustion mode to the transition mode if an intake oxygen density is equal to or lower than a predetermined value in the normal combustion mode. | 05-07-2009 |
| 20090107430 | CONTROL DEVICE FOR DIESEL ENGINE - A control device for a diesel engine has a valve timing switching mechanism capable of selectively switching between first opening/closing timing and second opening/closing timing for an exhaust valve. The first opening/closing timing is set such that the period for which the exhaust valve is open overlaps the period for which an intake valve is open, and that opening start timing for the exhaust valve is after bottom dead center of expansion stroke of a piston. The second opening/closing timing is set such that opening start timing for the exhaust valve is advanced compared with the opening start timing according to the first opening/closing timing. A control unit controls the valve timing switching mechanism so that the exhaust valve is opened and closed according to the first opening/closing timing, at least when the diesel engine is operating in a predetermined cold condition. | 04-30-2009 |
| 20090100827 | EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust gas purification apparatus includes a venturi constituting part of an exhaust pipe and formed by joining two axially divided parts together, and a reducing agent supply device for injecting an aqueous urea solution into the exhaust pipe. The venturi is positioned such that joints thereof are located to the right and left, respectively, of the center of a cross section perpendicular to the axis of the venturi. | 04-23-2009 |
| 20090100825 | EXHAUST PURIFICATION APPARATUS FOR ENGINE - 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. | 04-23-2009 |
| 20090094964 | EXHAUST PURIFICATION APPARATUS FOR ENGINE - 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. | 04-16-2009 |
| 20090048770 | FUEL CONSUMPTION ESTIMATING UNIT OF VEHICLE - Parameters which change depending on driving method of a vehicle driver are inputted to a fuel consumption estimation model. This fuel consumption estimation model estimates fuel consumption of a vehicle based on the parameter. The fuel consumption of a vehicle estimated by the fuel consumption estimation model is outputted to an output portion. | 02-19-2009 |
| 20090025994 | TRUCK | 01-29-2009 |
| 20090025370 | EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE - An auxiliary agent supply means ( | 01-29-2009 |
| 20090019842 | EXHAUST PURIFICATION DEVICE FOR ENGINE - 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. | 01-22-2009 |
| 20090019837 | EXHAUST PURIFICATION DEVICE FOR ENGINE - 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. | 01-22-2009 |
