Engine cylinder internal water spraying control method and control device and vehicle
An engine cylinder and control method technology, applied in engine control, engine components, machines/engines, etc., can solve the problems of thermal pollution, low combustion efficiency, fuel waste environment, etc., so as to reduce in-cylinder temperature and reduce exhaust heat loss , the effect of reducing environmental pollution
Inactive Publication Date: 2020-08-07
BAIC MOTOR CORP LTD
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Problems solved by technology
However, with the application of these advanced technologies, a large amount of energy is still discharged into the atmosphere in the form of heat energy during the operation of the engine, and the effective fuel combustion efficiency is lower than 40%, resulting in a large amount of fuel waste and environmental thermal pollution.
In related technologies, the technology of water spraying in the cylinder can be used to improve the heat emission of the engine, but the water spraying in the cylinder cannot well meet the heat absorption requirements of the engine under different working conditions, the safety is poor, and there is room for improvement
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[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0027] Unless otherwise specified, the front-rear direction in this application refers to the longitudinal direction of the vehicle, namely the X direction; the left-right direction refers to the transverse direction of the vehicle, namely the Y direction; the up-down direction refers to the vertical direction of the vehicle, namely the Z direction.
[0028] Refer below Figure 1-Figure 2 Describe the control method of spraying water in the engine cylinder according to the embodiment of the present invention. Through this control method,...
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The invention discloses an engine cylinder internal water spraying control method and control device and a vehicle. The control method comprises: step S10: an operation status of an engine, air inletpressure of an air inlet pipeline of the engine, and air exhaust temperature of an air exhaust pipeline of the engine are obtained; and step S20: the operation status, the air inlet temperature and the air exhaust temperature are identified, the identification results are analyzed, and the actual water spraying amount towards the inside of an air cylinder of the engine is controlled based on the analysis results. The engine cylinder internal water spraying control method can realize adjustment to the water spraying amount at any time based on the status of the engine; excess water is preventedfrom being sprayed into the air cylinder and from causing damage to parts and components including a cylinder wall, a piston and an air cylinder lid; the temperature in the cylinder is thereby effectively and timely lowered; and air exhaust heat loss and environmental pollution are reduced.
Description
technical field [0001] The invention relates to the technical field of vehicle manufacturing, in particular to a method for controlling water injection in an engine cylinder, a control device for water injection in an engine cylinder suitable for the control method, and a vehicle with the control device. Background technique [0002] Future engines need to meet stringent fuel consumption and emission regulations, although future engines can use EGR (exhaust gas recirculation system), Miller cycle, variable compression ratio, variable valve timing and other technologies to improve engine efficiency. However, with the application of these advanced technologies, a large amount of energy is still discharged into the atmosphere in the form of heat energy during the operation of the engine, and the effective fuel combustion efficiency is lower than 40%, resulting in a large amount of fuel waste and environmental thermal pollution. In the related art, the heat emission problem of t...
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IPC IPC(8): F02M25/03F02D21/00
CPCF02D21/00F02M25/0221F02M25/0227F02M25/03
Inventor 马洪浩曹壮李文军李鹏飞付江涛亢炯翔王怡玺
Owner BAIC MOTOR CORP LTD