Abstract: Provided is a novel control device of an internal combustion engine capable of estimating an EGR rate in a transient state with high accuracy. Thus, in the present invention, unit spaces are formed by dividing a reference space of the intake passage into a plurality of spaces along a streamline through which the gas mixture of the intake air and the EGR gas flows, a physical model based on an advection equation for estimating the EGR rate of the gas mixture is established so as to correspond to each of the unit spaces, and the EGR rate at which the gas mixture flows into the combustion chamber is estimated by sequentially estimating the EGR rates of the unit spaces connected to head unit spaces from the head unit spaces by the physical model.

Abstract: Provided is a vehicle control device capable of reducing unease experienced by a driver and assisting a lane change of a vehicle. A vehicle control device 10 assists a lane change of a vehicle 1, said device comprising: a visible range calculation unit 11 that calculates an area as a visible range by excluding the area occupied by preceding vehicles 201, 202 from the area corresponding to the field of vision whilst driving; and a lane-change control unit 12 that conducts processing related to the lane change, on the basis of the calculated visible range. The lane-change control unit 12 conducts processing related to the lane change on the basis of the visible range of the current-travel lane of the vehicle, and the visible range of the intended change-destination lane of the vehicle.

Abstract: The purpose of the present invention is to make it possible to minimize worsening of fuel consumption and loss of drivability. To achieve this purpose, it is proposed to use a vehicle control device characterized by having a vehicle behavior distribution information generating unit that generates preceding vehicle behavior distribution information in a given location on a road on the basis of travel histories of a plurality of vehicles, a preceding vehicle behavior information detection unit that detects behavior information of a preceding vehicle immediately ahead, a comparison unit that compares the vehicle behavior distribution information and the preceding vehicle behavior information, and a control unit that controls the host vehicle on the basis of the result of comparison from the comparison unit.

Abstract: The present invention provides a moving object controller and a moving object control method capable of selecting a movement plan based upon detection accuracy of external information. A moving object controller 100 includes a plan generation unit 110 that generates at least one movement plan based upon external information on an external world of a moving object 1 and internal information on an internal part of the moving object; an accuracy estimation unit 120 that estimates detection accuracy of the external information based upon the external information, the internal information, and predetermined past information, among the movement plans generated by the plan generation unit; and a plan selection unit 130 that selects a movement plan of an execution target from among the movement plans generated by the plan generation unit based upon the detection accuracy of the external information estimated by the accuracy estimation unit.

Abstract: A novel control device for an internal combustion engine capable of highly accurately estimating an EGR amount (rate) during the transient state is provided. A first EGR rate is determined using, as an input, a detection signal of an EGR sensor provided on the downstream side of a throttle valve which adjusts the flow rate of a mixed gas of air and EGR gas flowing through an intake pipe, a second EGR rate is estimated by calculating a predetermined equation using, as an input, at least a detection signal of an air flow sensor and an EGR valve opening degree sensor, a third EGR rate is determined by carrying out delay processing on the second EGR rate corresponding to a response delay of the EGR sensor, and the second EGR rate is subjected to learning correction by reflecting a difference between the third EGR rate and the first EGR rate.

Abstract: Introduction of a low fuel consumption technique such as downsizing turbos and idling stop decreases an intake pipe negative pressure (pump loss) of an internal combustion engine, and results in difficulty in emitting (evaporative fuel purge) a volatile fuel (volatile fuel) in a fuel tank by the negative pressure of the intake pipe of the internal combustion engine. A control device includes: a purge control unit which controls a purge valve which emits a volatile fuel of a fuel tank or a canister to an intake pipe of an internal combustion engine; and a power transmission control unit which controls a power transmission mechanism between the internal combustion engine and a drive wheel, and, in a state where the power transmission control unit disconnects a clutch, and the vehicle is coasting, the purge control unit opens the evaporative fuel valve and purges an evaporative fuel to the intake pipe.

Abstract: The purpose of the present invention is to improve fuel efficiency during coasting by calculating, with high accuracy, travel resistance during coasting. This vehicle control device comprises: a first travel resistance acquisition unit that acquires a first travel resistance, which is determined on the basis of road information or external information; and a second travel resistance acquisition unit that acquires a second travel resistance, which is determined on the basis of the result of actual traveling of the vehicle. This vehicle control device determines the content of coasting travel control during traveling of the vehicle on the basis of the result of a comparison of the first travel resistance and the second travel resistance in a predetermined zone where the vehicle has actually traveled.

Abstract: In a vehicle control device for stopping an internal combustion engine when a vehicle is traveling at a predetermined speed or higher and a stop condition of the internal combustion engine is satisfied, fuel is injected to the engine even when the stop condition is satisfied, when an EGR rate of the internal combustion engine is equal to or higher than a set value. Alternatively, when the EGR rate is equal to or higher than the set value, an EGR valve attached to an EGR pipe of the engine is controlled in a valve closing direction when the stop condition is satisfied. Alternatively, when the EGR rate is equal to or higher than the set value, clutch engagement is maintained for a clutch control device that disconnects torque transmission between an output shaft of the internal combustion engine and a vehicle drive shaft, even when the stop condition is satisfied.

Abstract: Introduction of a low fuel consumption technique such as downsizing turbos and idling stop decreases an intake pipe negative pressure (pump loss) of an internal combustion engine, and results in difficulty in emitting (evaporative fuel purge) a volatile fuel (volatile fuel) in a fuel tank by the negative pressure of the intake pipe of the internal combustion engine. A control device includes: a purge control unit which controls a purge valve which emits a volatile fuel of a fuel tank or a canister to an intake pipe of an internal combustion engine; and a power transmission control unit which controls a power transmission mechanism between the internal combustion engine and a drive wheel, and, in a state where the power transmission control unit disconnects a clutch, and the vehicle is coasting, the purge control unit opens the evaporative fuel valve and purges an evaporative fuel to the intake pipe.

Abstract: An anomaly in a high-pressure fuel system of an internal combustion engine is diagnosed early on and with high precision, and, further, the anomaly site is identified.

Abstract: An anomaly in a high-pressure fuel system of an internal combustion engine is diagnosed early on and with high precision, and, further, the anomaly site is identified.

Abstract: Any anomaly in energy transfer is appropriately diagnosed in a vehicle. The energy transfer system of a vehicle is provided with: an input energy computation means (e.g., the chemical energy of fuel computation means) for determining the input energy of the energy transfer system; an output energy computation means (e.g., the vehicle kinetic energy computation means) for determining the energy output of the energy transfer system; and a comparing means (e.g., the comparing means) for comparing the input energy with the output energy. Any anomaly in the energy transfer system (e.g., any anomaly in fuel efficiency) is determined based on the result of comparison by the comparing means.

Abstract: A control apparatus for an internal combustion engine has an oxygen storage volume computing unit for computing an oxygen storage volume of a catalyst by using a real air/fuel ratio detected by an air/fuel ratio sensor installed on the upstream side of a catalyst, a center air/fuel ratio representing a stoichiometric air/fuel ratio and an estimated air flow volume or detecting a flow rate of air flowing into the catalyst. A center air/fuel ratio correcting unit for correcting a center air/fuel ratio based on output of a rear air/fuel ratio sensor provided on the downstream side of the catalyst, and an oxygen storage volume computed by an oxygen storage volume computing unit, and the oxygen storage volume computing unit computes an oxygen storage volume by using a center air/fuel ratio corrected by the center air/fuel ratio correcting unit.

Abstract: To prevent the deterioration of exhaust emissions of an internal combustion engine due to air-fuel ratio variation among multiple cylinders, and to identify an abnormal cylinder during an abnormality of cylinder air-fuel ratio variation. An control apparatus of an internal combustion engine comprising upstream air-fuel ratio detection means for detecting upstream air-fuel ratio of the catalyst that purifies exhaust emissions discharged from multiple cylinders, and configured to control air-fuel ratio of the multiple cylinders based on the upstream air-fuel ratio, wherein the air-fuel ratio variation among the multiple cylinders is increased and the upstream air-fuel ratio is controlled to become rich.

Abstract: There is provided a control apparatus for a cylinder injection internal combustion engine which suppresses fuel pulsation caused by cam phase deviation and thereby prevents internal combustion engine exhaust deterioration, so that the reliability of a high-pressure fuel system using a high-pressure fuel pump is improved. The control apparatus for a cylinder injection internal combustion engine includes a high-pressure fuel pump that raises the pressure of fuel and discharges the fuel to a fuel rail, and a fuel pressure sensor that detects a pressure of fuel stored in the fuel rail. The control apparatus controls the high-pressure fuel pump based on the fuel pressure detected by the fuel pressure sensor.

Abstract: In a diagnosis apparatus for an internal combustion engine which determines the abnormality of a linear A/F sensor which is disposed on the upstream side of a catalyst of the engine and detects the A/F of exhaust gas, the apparatus includes a response/gain deterioration detection unit that separately detects the response deterioration in which the response of the linear A/F sensor is delayed and the gain deterioration in which the detection sensitivity of the linear A/F sensor is abnormal.

Abstract: A control apparatus for an internal combustion engine has an oxygen storage volume computing unit for computing an oxygen storage volume of a catalyst by using a real air/fuel ratio detected by an air/fuel ratio sensor installed on the upstream side of a catalyst, a center air/fuel ratio representing a stoichiometric air/fuel ratio and an estimated air flow volume or detecting a flow rate of air flowing into the catalyst. A center air/fuel ratio correcting unit for correcting a center air/fuel ratio based on output of a rear air/fuel ratio sensor provided on the downstream side of the catalyst, and an oxygen storage volume computed by an oxygen storage volume computing unit, and the oxygen storage volume computing unit computes an oxygen storage volume by using a center air/fuel ratio corrected by the center air/fuel ratio correcting unit.

Abstract: A diagnosis apparatus for an internal combustion engine equipped with a cold start emission reduction strategy unit, includes: a temperature measuring unit for detecting a temperature of coolant of the internal combustion engine; a temperature estimating unit for calculating an estimated temperature of the coolant in accordance with a running state of the internal combustion engine; and a cold start emission reduction strategy abnormality judging unit for judging abnormality of the cold start emission reduction strategy unit in accordance with the temperature detected with the coolant temperature measuring means and the estimated temperature.

Abstract: A control apparatus for an internal combustion engine has an oxygen storage volume computing unit for computing an oxygen storage volume of a catalyst by using a real air/fuel ratio detected by an air/fuel ratio sensor installed on the upstream side of a catalyst, a center air/fuel ratio representing a stoichiometric air/fuel ratio and an estimated air flow volume or detecting a flow rate of air flowing into the catalyst. A center air/fuel ratio correcting unit for correcting a center air/fuel ratio based on output of a rear air/fuel ratio sensor provided on the downstream side of the catalyst, and an oxygen storage volume computed by an oxygen storage volume computing unit, and the oxygen storage volume computing unit computes an oxygen storage volume by using a center air/fuel ratio corrected by the center air/fuel ratio correcting unit.

Abstract: A diagnostic apparatus is combined with a high-pressure fuel supply system including a high-pressure fuel pump, a fuel rail, injectors, and a fuel pressure measuring unit for measuring fuel pressure in the fuel rail. The diagnostic apparatus is capable of detecting troubles in the high-pressure fuel pump and injectors and of discriminating between a trouble in the high-pressure fuel pump and a trouble in the injectors includes.