A controller for a vehicle is provided. Temperature increasing control executed by a temperature increasing control unit executes a fuel drawing process to generate heat in a catalytic device and transfer the generated heat to a downstream side via gas flowing through the exhaust passage. The fuel drawing process performs fuel injection as a crankshaft is rotated when combustion in a cylinder is stopped to draw an air-fuel mixture containing unburned fuel into the catalytic device. An obtainment unit obtains an intake air temperature. A temperature increasing control unit controls an air-fuel ratio of the air-fuel mixture in the fuel drawing process based on the intake air temperature so that when the intake air temperature is relatively high, the air-fuel ratio of the air-fuel mixture becomes a leaner value than when the intake air temperature is relatively low.

In a method for the regeneration of a particulate filter or of a four-way catalytic converter in an exhaust system of an internal combustion engine, an increase in the nitrogen oxide emissions during the regeneration of the particulate filter or of the four-way catalytic converter can be prevented or at least reduced. A particulate filter or a four-way catalytic converter is arranged in the exhaust system of an internal combustion engine. The fuel injection and the ignition are switched off in response to a request for the internal combustion engine to be turned off. Due to mass inertia, the internal combustion engine transitions from the switch-off rotational speed to a standstill whereby, during this phase, oxygen-rich air is conveyed into the exhaust passage. A partial regeneration of the filter or of the catalytic converter takes place with the oxygen contained in this fresh air, whereby the particulate mass discharged from the filter or the catalytic converter is determined by means of a computational model.

A vehicle includes an internal combustion engine including an exhaust passage, a catalyst provided in the exhaust passage, and an electronic control unit. When the engine stop condition is established, the electronic control unit stops fuel injection and increases a catalyst inflow oxygen amount that is an amount of oxygen flowing into the catalyst by a specified oxygen increase amount. The engine stop condition is a condition for stopping operation of the internal combustion engine. The specified oxygen increase amount is larger than an increased part of the catalyst inflow oxygen amount that is increased by the stop of the fuel injection.

A method is presented for facilitating oxygen vacancy generation in a resistive random access memory (RRAM) device. The method includes forming a RRAM stack having a first electrode and at least one sacrificial layer, encapsulating the RRAM stack with a dielectric layer, constructing a via resulting in removal of the at least one sacrificial layer of the RRAM stack, the via extending to a high-k dielectric layer of the RRAM stack, and forming a second electrode in the via such that the second electrode extends laterally into cavities defined by the removal of the at least one sacrificial layer.

A method for controlling operation of an opposed piston engine is provided, comprising: determining a direction of rotation of the engine; comparing the determined direction of rotation to a correct direction of rotation of the engine; and responding to the determined direction of rotation being different from the correct direction of rotation by taking corrective action.

A control unit is provided for a vehicle having an internal combustion engine with a shaft, which can be coupled to an electric machine or decoupled from the electric machine. The control unit is designed to couple the electric machine to the internal combustion engine during an engine stop of the internal combustion engine. The control unit causes the electric machine to guide the shaft of the internal combustion engine. The control unit determines that a speed of the guided shaft is equal to or less than a speed threshold value and, in response thereto, decouples the electric machine from the internal combustion engine, such that the internal combustion engine stops without being guided by the electric machine.

A method for manufacturing engine powered machinery having a fuel cut functionality to promote more rapid shutdown of the rotating parts of the engine powered machinery. In one aspect, the method is implemented by assembling a wiring harness disposed exclusively on the engine which are configured to simultaneously disable one or more ignition coils and prevent a fuel-air mixer from supplying a mixture of air and fuel to the engine upon activation of a safety switch. In alternate aspects, the method further comprises a stator brake which is activated by the safety switch to provide additional braking torque on the engine. These features bring the machinery to a rapid halt, further enhancing safety.

Systems and methods for operating a vehicle that includes an engine that may be automatically stopped and started are described. In one example, inhibiting of automatic engine stopping and starting may be withdrawn in response to a change in driver vehicle settings or when a temperature of an engine is less than a threshold temperature.

A control unit decides whether or not a first condition that a service brake is released, a parking brake is actuated, and a transmission is shifted into neutral is established at a vehicle stopping time. In addition, the control unit decides whether or not a second condition that the service brake is actuated, and the transmission is shifted to an ahead stage is established at the vehicle stopping time. Then, the control unit stops the engine when the first condition or the second condition is established.

In a control system for an internal combustion engine, the internal combustion engine includes a first exhaust catalyst that is a three-way catalyst disposed in an exhaust path of the internal combustion engine, a second exhaust catalyst that is a three-way catalyst disposed in the exhaust path on a downstream side of the first exhaust catalyst, and a motor configured to drive the internal combustion engine. The control system includes an electronic control unit configured to, when operation of the internal combustion engine is stopped, stop fuel injection in the internal combustion engine and then, execute motoring in which the internal combustion engine is rotationally driven using drive power of the motor, and execute the motoring in a range in which an oxygen occlusion amount of the first exhaust catalyst becomes an oxygen occlusion amount smaller than an upper limit oxygen occlusion amount of the first exhaust catalyst.