Abstract: The subject matter of this specification can be embodied in, among other things, a method of igniting an air/fuel mixture in an internal combustion engine includes receiving an air/fuel mixture into a pre-combustion chamber, the pre-combustion chamber enclosing a portion of an igniter, igniting the air/fuel mixture in in the pre-combustion chamber with the igniter to produce a flame, directing the flame to eject the pre-combustion chamber through a collection of passages in a wall of the pre-combustion chamber, toward a peripheral wall of a main combustion chamber of the internal combustion engine, igniting, by the flame, air/fuel mixture in the main combustion chamber adjacent the peripheral wall, and then igniting air/fuel mixture in the main combustion chamber in a central region of the main combustion chamber with a propagating flame front of the ignited air/fuel mixture or a portion of the directed flame adjacent the peripheral wall.

Abstract: At least one server comprising at least one processor coupled to at least one memory storing instructions. The server can receive a first signal from a first monitored system comprising an internal combustion engine and a first sensor, the first signal associated with a first occurrence of an internal combustion engine event, a second occurrence of the internal combustion engine event, and first measurement data of the first sensor. The server can determine a first measurement from the first measurement data. The server can determine a second measurement from the first measurement data. The server can determine a measurement deviation between the first measurement and the second measurement. The server can compare the measurement deviation to a stored measurement threshold. The server can determine a first exhibited useful life of the first sensor based on the measurement deviation and at least one of the first measurement or the second measurement.

Abstract: A variety of methods and arrangements are described for managing recharging of cylinders of an internal combustion engine during skip fire operation of the engine. In one method, a maximum allowed deactivation time for a cylinder is determined and the cylinder is recharged before the maximum allowed deactivation time is exceeded.

Abstract: A method for harnessing wave energy includes providing a vehicle to a body of water, the vehicle. The method includes submerging the vehicle to a depth in the body of water. The method includes operating the motor-generator of the vehicle in the first quadrant of the motor-generator. The method includes detecting a phase of a wave in the body of water based information from the processor of the detected phase. The method includes orienting the vehicle to lag the phase of the wave based on the detected phase of the wave. The method includes synchronizing an inertial acceleration of the vehicle to movement of the wave. The method includes switching the motor-generator to the second quadrant for generation mode to convert energy from the movement of the wave to electrical energy. The method includes storing the energy from the wave in the rechargeable battery source.

Abstract: The vehicle control device executes: a stop process for stopping fuel supply to two cylinders to be stopped; and a selection process of selecting one cylinder to be a stop instruction for stopping fuel supply from among the cylinders to be stopped. The selection process is a process of selecting a cylinder whose compression top dead center appears earliest among the stop target cylinders. The crank angle interval from when the cylinder to be the stop instruction target is selected until the stop instruction target cylinder is switched to the next cylinder among the stop target cylinders is the stoppable angle interval. The stop instruction for the selected cylinder is received before the fuel injection start time and at the stoppable angle interval. The control device executes a retard process of retarding the fuel injection start timing so that the stoppable angle interval includes the fuel injection start timing.

Abstract: A method for delaying cylinder reactivation in a vehicle includes identifying, by a controller, a request to exit a cylinder deactivation state. The controller determines if the request is due to a transient condition. If the request is due to the transient condition, the controller analyzes at least one of the transient condition and a condition of the vehicle. The controller determines a first adjustment to the vehicle based on analyzing at least one of the transient condition and the condition of the vehicle. The first adjustment is configured to mitigate the transient condition. The controller implements the first adjustment.

Abstract: Methods and systems are provided for operating a vehicle that includes an electric machine as a propulsion source. In one example, a motor stall assessment level is generated based on an amount of time that the motor is stalled and an amount of torque that is generated by the motor. Mitigating actions may be performed if the motor stall assessment level exceeds a threshold level or value.

Abstract: The disclosure relates to a tappet for acting on a pump piston of a high-pressure fuel pump of an internal combustion engine. The tappet includes a tubular housing, and at the upper annular end face of the tubular housing, two surfaces which are indented relative to the outer casing of the housing and comprise a pin that supports a cam roller, lie diametrically opposite each other. An upper end face of a transverse beam lies against axial inner end faces of the two surfaces. A transverse beam lower end face, which faces a lower annular end face of the housing, is provided with a pin, which protrudes from the housing and is surrounded by a spring plate supported against the inner casing of the housing. A sleeve-like inner collar of the spring plate guides the unstepped pin.

Abstract: A system includes: a state module configured to selectively set a present state to a first state; a valve control module configured to determine first target open and closed states for valves of a suspension system based on the present state and to open and close the valves according to the first target open and closed states, respectively; a pump control module configured to, when the valves are in the first target open and closed states, respectively, selectively operate an electric pump in a first direction to increase hydraulic fluid pressure in a first portion of the suspension system; and a leak module configured to selectively diagnose a leak in a first one of the valves associated with the first state based on a first pressure in the first portion of the suspension system while the valves are open and closed according to the first target open and closed states.

Abstract: An engine-equipped vehicle capable of preventing gear noise and gear wear when the engine is started is provided. A multicylinder engine, a gear transmission that shifts power from the multicylinder engine by a shift operation, a centrifugal clutch arranged in a power transmission path from the multicylinder engine to the gear transmission, and an electronic control device that controls an operation of the multicylinder engine are included and the engine is configured to be started with a partial cylinder operation start where under control of the electronic control device, only some cylinders are operated and an operation of other cylinders is stopped.

Abstract: An axisymmetric injector hold-down load ring includes an annular body and an odd numbered plurality of resilient arms integrally extending from the annular body. Each resilient arm has a curvature concentric with the annular body and extends in a first circumferential direction along an outer periphery of the annular body an equal circumferential distance from a connection with the annular body to a free end. The free end of each resilient arm includes a contact surface facing axially opposite a first surface of the annular body, the contact surface of each resilient arm is axially offset from the first surface of the annular body an equal axial distance. This configuration positions the connections and contact surfaces in radial alignment so that force is transmitted along the resilient arms between the circumferentially spaced connections and contact surfaces when the load ring is in use.

Abstract: Methods and systems are provided for maintaining efficiency of a catalyst that is positioned in an exhaust system downstream of an internal combustion engine. In one example, the catalyst may be heated via supplying fuel to a cylinder that does not combust the fuel. The fuel may be oxidized at the catalyst via excess oxygen in the exhaust system.

Abstract: Systems and methods for mitigating exhaust gas emissions via cylinder deactivation are provided. A system includes a controller coupled to an internal combustion engine and an electric motive device. The controller includes a processor and a memory. The memory stores instruction that, when executed by the processor, cause the controller to: receive a power request less than a current power output from the internal combustion engine; command the electric motive device to provide a supplemental power output based on the received power request; command the internal combustion engine to operate in a cylinder deactivation mode whereby at least one cylinder of a plurality of cylinders of the internal combustion engine is deactivated; responsive to determining that a power output of the internal combustion engine is substantially equivalent to the power request after commanding the internal combustion engine to operate in the cylinder deactivation mode, deactivate the electric motive device.

Abstract: A motor generator control system includes: a motor generator; a drive current control unit configured to perform feedback control so that a driving force at a time of power running or the driving force at a time of regeneration of the motor generator is a target driving force; a current coordinate control unit configured to output a d-axis current value and a q-axis current value to the drive current control unit; and a strong field control unit configured to perform strong field control of setting a field to be stronger than a field strength at which a maximum efficiency is obtained. When the strong field control is performed during the regeneration, the motor generator control system executes current consumption control of performing the feedback control by changing the d-axis current value and the q-axis current value so that the driving force is smaller than the target driving force.

Abstract: Provided is a pressure regulator and a fuel pump module having the same, which may be easily assembled by including fewer components, the pressure regulator including: a first housing including a guide part positioned therein and guiding movement of a valve, and an outlet part communicating with an inner space thereof and discharging a fluid; a second housing coupled to the first housing, having a valve accommodating space, including a valve seating part, and including an inlet part introducing a fluid; a valve positioned in the valve accommodating space, and moved to thus open and close a fluid flow; and an elastic member interposed between the valve and the first housing to bring the valve into close contact with the valve seating part.

Abstract: A control apparatus for an electric vehicle includes a first motor (traveling motor) for traveling, a battery (high-voltage battery), a second motor (generator motor) for electricity generation, an engine (rotary engine), a first controller (engine ECU), a second controller (motor ECU), and a sensor (voltage-current sensor). The second controller is configured to start the engine by causing the second motor to perform power running, cause the second motor to perform electricity generation driving such that the battery is charged, and adjust a stop position of the engine by causing the second motor to perform power running subsequently to a stop of the engine by the first controller in a case where a state of charge of the battery becomes high and the second motor finishes the electricity generation driving.

Abstract: A fuel delivery system for controlling an inlet pressure of a prime mover in a transport climate control system is provided. The fuel delivery system includes a fuel tank, a pressure regulator, a pump disposed downstream of the fuel tank, a first filter disposed downstream of the pump, and the prime mover disposed downstream of the first filter. The prime mover is located above the fuel tank in a vertical direction. The pump is configured to provide a first fuel flow through the first filter. The prime mover is configured to accept a first portion of the first fuel flow and is configured to provide a return fuel flow. The pressure regulator is disposed downstream of the first filter. The pressure regulator is configured to accept a second portion of the first fuel flow, and to accept a pressure of the return fuel flow as a reference pressure.

Abstract: A vehicle control device including processor being configured to, when driving sections are present inside a restricted region, extract as a restricted driving section from among driving sections present inside the restricted region a driving section through which it is projected the vehicle will be driven in a restricted time period in which operation of internal combustion engines is restricted, and prepare a driving plan able to drive through the restricted driving section in the EV mode.

Abstract: An injector apparatus (310) for injecting fluid under pressure into an associated chamber (332) is provided. The injector apparatus (310) includes a first piston (314) defining a first working area facing an associated chamber (332), a high pressure piston (318) defining a high pressure working area facing a high pressure chamber (319), and a control piston (317) defining a control piston working area facing a control chamber (315). The first piston (314) is moveable with a body of the injector apparatus (310) to compress fluid in the high pressure chamber (319) using the high pressure piston (318), while movement of the first piston (314) is selectively controllable by controlling the fluid in the control chamber (315). The first working area is larger than the control piston working area and the control piston (317) working area is larger than the high pressure working area.

Abstract: A driving assistance apparatus includes a clutch provided between a drive source and a transmission, a clutch operator with which a driver who drives a vehicle disengages the clutch, a clutch operation detector that detects that the clutch is disengaged, a shift operator with which the driver sets the transmission at least to a neutral position, a shift position detector that detects that the transmission is in the neutral position, a low-speed motor, and a controller that controls a drive force of the low-speed motor. The controller includes a driving mode setter that sets a driving mode of the vehicle to a motor driving mode when the clutch is detected to be disengaged or the transmission is detected to be in the neutral position. The controller stops the drive source and starts the low-speed motor when the driving mode is set to the motor driving mode.