摘要:
Methods and systems for controlling an engine that may be automatically stopped and started are presented. In one example, a compressor is activated from a deactivated state in response to one or more environmental parameters during an engine start. The methods and systems may improve engine response after an engine start.
摘要:
A method for controlling a propulsion system for a vehicle including a transmission coupling an output shaft of the internal combustion engine to a drive wheel of the vehicle, wherein said transmission includes a lash region, the method comprising of adjusting an operating parameter of the engine so that at least one cylinder of the engine is transitioned between a first combustion mode and a second combustion mode, and varying a timing of said transition responsive to whether the transmission is operating within the lash region of the transmission.
摘要:
A method for controlling a vehicle operation in the transmission lash region. One method includes transitioning a combustion mode of a cylinder, and varying a timing of said transition responsive to whether the transmission is operating within the lash region of the transmission.
摘要:
Systems and methods for controlling shut down of a multiple cylinder internal combustion engine include a mechanical energy storage device to decelerate an engine crankshaft to a stopping position desirable for restarting of the engine. Energy stored during shut down may be used to adjust or reposition the crankshaft to one of a plurality of angular orientations advantageous for restarting, and/or used to rotate the crankshaft during restarting of the engine. A flywheel having a variable mass, such as provided by two or more segments, which may be fixedly or selectively coupled to one or more springs may be used to selectively store and release energy.
摘要:
A method of operating an engine having an adjustable balance shaft may comprise adjusting operation of the balance shaft during engine operation in response to an engine combustion mode. For example, balance shafts may be disabled during SI mode and enabled during HCCI mode. Various alternative examples may also be used.
摘要:
A method of operating an engine having an adjustable balance shaft may comprise adjusting operation of the balance shaft during engine operation in response to an engine combustion mode. For example, balance shafts may be disabled during SI mode and enabled during HCCI mode. Various alternative examples may also be used.
摘要:
A counterweight arrangement for an internal combustion engine with three cylinders. The internal combustion engine having a crankshaft rotating about an axis of rotation, with three cranks which succeed one another in the axial direction with respect to the axis of rotation and are distributed at angular intervals of 120° and each crank corresponding to a respective cylinder, the counterweight arrangement including at least two counterweights for at least partial compensation of inertia forces caused by rotating masses on the crankshaft, wherein exactly two counterweights are provided for the two outer cranks, at least one of the two counterweights being arranged in a position which is rotated about the crankshaft axis with respect to an assigned crank through angle (αcounter), the amount of which differs from 30°+N*180°, N being equal to a natural number or equal to zero.
摘要翻译:具有三个气缸的内燃机的配重装置。 内燃机具有围绕旋转轴线旋转的曲轴,具有相对于旋转轴线在轴向方向上相互成功的三个曲柄,并以120°的角度间隔分布,并且每个曲柄对应于相应的气缸, 所述配重装置包括至少两个配重,用于至少部分地补偿由所述曲轴上的旋转质量引起的惯性力,其中为所述两个外曲柄提供两个配重,所述两个配重中的至少一个被布置在 相对于指定的曲柄通过角度(α Counter SUB>)围绕曲轴轴线旋转,其量为30°+ N * 180°,N等于自然数或等于零 。
摘要:
A method for operating an engine of a motor vehicle is provided. The method comprises operating at least one turbocharger, operating a start/stop automatic system which automatically switches off the internal combustion engine when a stop condition is met, and automatically starts the internal combustion engine when a starting condition is met, and when the stop condition is met, delaying the automatic switching off of the internal combustion engine by a predefinable delay time (Δt). In one example, automatic shut off of the engine may be delayed in order ensure adequate cooling of the turbocharger.
摘要:
A method for operating an engine of a motor vehicle is provided. The method comprises operating at least one turbocharger, operating a start/stop automatic system which automatically switches off the internal combustion engine when a stop condition is met, and automatically starts the internal combustion engine when a starting condition is met, and when the stop condition is met, delaying the automatic switching off of the internal combustion engine by a predefinable delay time (Δt). In one example, automatic shut off of the engine may be delayed in order ensure adequate cooling of the turbocharger.
摘要:
A method for controlling a vehicle operation in the transmission lash region. One method includes transitioning a combustion mode of a cylinder, and varying a timing of said transition responsive to whether the transmission is operating within the lash region of the transmission.