F02D9/00

Method and system for engine control

Methods and systems are provided for controlling an engine system with a variable cam timing device. In one example, the variable cam timing device is operated to adjust engine valve timing differently at engine stop based on whether the engine stop is in response to an operator request or in response to an automatic controller initiated engine stop without an operator request.

Method and system for engine control

Methods and systems are provided for controlling an engine system with a variable cam timing device. In one example, the variable cam timing device is operated to adjust engine valve timing differently at engine stop based on whether the engine stop is in response to an operator request or in response to an automatic controller initiated engine stop without an operator request.

Control device for engine
09944180 · 2018-04-17 · ·

A control device for an engine, which controls an engine torque based on operation of an organ-type accelerator pedal is provided. The control device includes an accelerator opening detector for detecting an accelerator opening based on an angle of an accelerator pedal, a target acceleration setter for setting a target acceleration based on the accelerator opening, and an engine controller for adjusting an engine torque to achieve the target acceleration. The accelerator pedal is arranged to have a pedal angle at a predetermined initial pedal angle when the accelerator pedal is not pressed. The target acceleration setter sets the target acceleration to zero when the accelerator pedal is pressed and the accelerator opening is within a range where a difference between the pressed pedal angle and the initial pedal angle is between 2 and 4 degrees.

Engine control systems and methods for future torque request increases

An engine control method includes: generating a torque request for an engine based on a driver input; and based on the torque request, controlling: opening of a wastegate of a turbocharger; opening of a throttle valve based on the torque request; and an intake valve phaser and an exhaust valve phaser. The engine control method also includes selectively determining an expected future increase in the torque request. The engine control method also includes, based on the expected future increase and before the torque request increases based on the expected future increase: decreasing the opening of the wastegate; and at least one of: decreasing the opening of the throttle valve; and adjusting at least one of the intake valve phaser and the exhaust valve phaser to decrease a volumetric efficiency of the engine.

Electronic governor system and load sensing system

An electronic governor system includes a motor, a transmission coupled to the motor, a throttle plate coupled to the transmission, the throttle plate movable to multiple positions between closed and wide-open, wherein power is supplied to the motor to move the throttle pate to a desired position and wherein power is not supplied to the motor to maintain the throttle plate in the desired position.

Control apparatus for internal combustion engine
09890718 · 2018-02-13 · ·

A control apparatus for an internal combustion engine of this invention includes: a turbo-supercharger; an exhaust gas purifying catalyst disposed in an exhaust passage on the downstream side of a turbine; and a WGV capable of opening and closing an exhaust bypass passage that bypasses the turbine. At the time of a catalyst warm-up request, catalyst warm-up control that opens the WGV and retards the ignition timing is executed. If the sensitivity of control of an intake air amount by a throttle valve is high, the intake air amount is controlled using the throttle valve during execution of the catalyst warm-up control. If the control sensitivity is low, the intake air amount is controlled using the WGV during execution of the catalyst warm-up control. When the WGV degree of opening is controlled toward a closed side during execution of the intake air amount control using the WGV, a retard amount of the ignition timing is increased.

Heat Management System and Heat Management Method of an Internal Combustion Engine
20240418118 · 2024-12-19 · ·

A thermal management method for operating a thermal management system of an internal combustion engine. The thermal management system comprises at least one fluid chamber which is arranged at least partially around a cylinder head of a cylinder of the internal combustion engine and has at least one inlet line and at least one outlet line, the fluid chamber being connected to at least one coolant pumping device for pumping a coolant, and to at least one heat sink. According to a thermal management method, with increasing temperature of the at least one fluid chamber after a warm-up phase at a constant or decreasing engine speed, the coolant flow rate is temporarily increased through the at least one heat sink. At a constant engine speed or at an engine speed increasing at maximum 100 revolutions per minute and with reducing engine load, the coolant flow rate is maintained or increased through the at least one heat sink after the load change within a temperature range of 60 C. to 100 C. of the at least one fluid chamber

System and method for emptying a tank

A system for method for emptying a gas storage tank of a vehicle is presented. In one example, engine valve timing is adjusted to facilitate reducing pressure within the gas storage tank. The system and method may extend the use of the gas stored in the gas storage tank.

System and method for emptying a tank

A system for method for emptying a gas storage tank of a vehicle is presented. In one example, engine valve timing is adjusted to facilitate reducing pressure within the gas storage tank. The system and method may extend the use of the gas stored in the gas storage tank.