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Systems and methods for adjusting intake manifold pressure

A technology of intake manifold pressure and intake manifold, applied in the direction of charging system, lubricant pressure control, electrical control, etc., can solve the problems of drivability deterioration, fuel economy reduction, etc., and achieve consistent cylinder reactivation , Reduce the torque disturbance of the drive train and improve the fuel consumption of the engine

Active Publication Date: 2022-02-08
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the drivability of the vehicle may deteriorate, and the fuel economy of the vehicle may decrease

Method used

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  • Systems and methods for adjusting intake manifold pressure
  • Systems and methods for adjusting intake manifold pressure
  • Systems and methods for adjusting intake manifold pressure

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Embodiment Construction

[0061] The present description relates to systems and methods for selectively activating and deactivating cylinders and cylinder valves of an internal combustion engine. The engine can be as Figure 1A to Figure 6D Configure and operate as shown. Various methods and predictive operating sequences for engines involving deactivated valves are in Figure 7 to Figure 42 shown in . Different approaches can work together and with Figure 1A to Figure 6D The system shown operates together.

[0062] refer to Figure 1A , an internal combustion engine 10 comprising a plurality of cylinders, one of which is at Figure 1A shown in . Engine 10 is comprised of cylinder head casting 35 and cylinder block 33 which includes combustion chamber 30 and cylinder walls 32 . Piston 36 is positioned therein and reciprocates via a connection with crankshaft 40 . Flywheel 97 and ring gear 99 are coupled to crankshaft 40 . A starter 96 (eg, a low voltage (operating at less than 30 volts) motor) ...

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Abstract

The present application relates to systems and methods for adjusting intake manifold pressure. Systems and methods are presented for operating an engine with deactivated and non-deactivated valves. In one example, the position of an engine intake throttle is adjusted during cylinder deactivation to control intake manifold pressure for cylinder reactivation. Throttle closing may be timed based on the actual number of cylinder induction events expected to provide a desired engine intake manifold pressure.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application Serial No. 62 / 347,869, filed June 9, 2016. The entire content of the above application is hereby incorporated by reference in its entirety for all purposes. technical field [0003] The present description relates to systems and methods for selectively deactivating one or more cylinders of an internal combustion engine. The systems and methods may be applied to engines operating poppet valves to control flow into and out of cylinders of the engine. Background technique [0004] The intake and exhaust valves of the engine may be commanded to remain closed for an engine cycle to deactivate one or more engine cylinders. Additionally, fuel flow to deactivated cylinders may be stopped. Engine fuel economy may be increased by deactivating selected engine cylinders at low engine loads. In one cylinder deactivation mode, all engine cylinders may be deact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/00F02D13/06F02D17/02F02D29/02
CPCF02D13/06F02D17/02F02D29/02F02D41/0005F02D41/008F02D2200/60F02D2250/41F02D17/00F02D41/0087F02D41/0225F02P5/1522F02P5/1523F01M1/16F01M11/10F02D35/026F02D35/027F02D41/0002G01L23/22F02D2041/0012F02D2200/0406F02D2250/21F16N2200/00Y02T10/40F02D41/123F02D41/1498F02M35/10236F02M35/104Y02T10/12F02D9/02F02D9/08F02D41/26F02D2009/0228
Inventor A·J·理查兹J·E·罗林格
Owner FORD GLOBAL TECH LLC
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