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Engine control device, engine and control method thereof

A control device and engine technology, which is applied in engine control, machine/engine, electrical control, etc., can solve the problems of rising vehicle cost and difficulty in GPF layout, so as to avoid layout difficulties, reduce vehicle cost and meet emission requirements Effect

Inactive Publication Date: 2018-12-21
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The installation of GPF not only increases the cost of the vehicle, but also makes it difficult to arrange the GPF due to space factors.

Method used

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  • Engine control device, engine and control method thereof
  • Engine control device, engine and control method thereof
  • Engine control device, engine and control method thereof

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0045] figure 1 It is a structural schematic diagram of an engine provided by an embodiment of the present invention. see figure 1 , the engine includes a combustion chamber 101 , an intake port 102 , an exhaust port 103 , a port injector 104 and a direct injector 105 .

[0046] The outlet of the intake passage 102 and the entrance of the exhaust passage 103 are both connected to the combustion chamber 101 , and the outlet of the intake passage 102 is provided with an intake valve 120 , and the entrance of the exhaust passage 103 is provided with an exhaust valve 130 .

[0047] The output end of the port injector 104 communicates with the intake passage 102 , and the output end of the direct injector 105 communicates with the combustio...

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Abstract

The invention discloses an engine control device, an engine and a control method thereof, and belongs to the field of automobiles. The device is used for controlling the engine provided with an airwayoil injector and a direct oil injector simultaneously, the device comprises a determination module and a control module, the determination module is used for determining the load of the engine, and the control module is used for controlling switching of the airway oil injector and the direct oil injector according to the load of the engine; when the load of the engine is smaller than a first threshold, the airway oil injector is controlled to be started, and the direct oil injector is controlled to be stopped; when the load of the engine is smaller than or equal to a second threshold and greater than or equal to the first threshold, the airway oil injector and the direct oil injector are both controlled to be started, and the second threshold is greater than the first threshold; and whenthe load of the engine is greater than the second threshold, the direct oil injector is controlled to be started, and the airway oil injector is controlled to be stopped. By means of the device, the emission requirements can be met without additionally installing a GPF.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an engine control device, an engine and a control method thereof. Background technique [0002] The particle number (Particulate Number, PN) emitted by a supercharged engine is an important indicator for evaluating a supercharged engine. [0003] The supercharged engine includes port fuel injection gasoline engine (Port Fuel Injection, PFI) and direct injection gasoline engine (Gasoline Direct Injection, GDI). Different injection methods have a great impact on PN emissions. For example, PFI has low PN emissions at medium and low loads, but high PN emissions at high loads; while GDI has intermediate levels of PN emissions at high, medium and low loads. The above situation makes it difficult for existing supercharged engines to meet people's requirements for low emissions. Therefore, in the related art, it is usually necessary to install a gasoline particulate filter (Gasoline Particul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/30
CPCF02D41/3094
Inventor 刘义克王建军王伟刘钢
Owner CHERY AUTOMOBILE CO LTD
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