An engine multi-mode control system

Abstract

The invention relates to an engine multi-mode control system which comprises a control mode request module and a control mode request collecting module. The control mode request module is connected with a control mode switching module through a control mode selection module; the control mode request module can send produced multiple control requests to the control mode request collecting module; the control mode request collecting module receives and sorts the control mode requests by priority; the control mode selection module can co-processes the control mode requests sorted through the control mode request collecting module so as to determine a control mode request to be switched; and the control mode switching module can switch a current control mode of an engine to the determined control mode request to be switched. The engine multi-mode control system provided by the invention can be used for processing multiple different control mode requests, determining the next activated working mode according to the configuration of request types and priorities, and providing a corresponding working mode switching manner according to the requirement of the request, and ensures a transient control effect.

Description

technical field [0001] The invention relates to a control system, in particular to an engine multi-mode control system, which belongs to the technical field of internal combustion engine control. Background technique [0002] For the energy saving and emission reduction of internal combustion engines, the document whose publication number is CN102619636A proposes a method for energy saving and emission reduction of gasoline engines, which sets the engine to different combustion modes according to the different operating conditions of the engine, including stratified combustion mode, CAI Burn mode, lean burn mode and equivalence ratio burn mode. Combining unique low-pressure fuel direct injection technology, VVT / VVL, internal and external EGR, and lean-burn exhaust after-treatment, a combustion method for gasoline engine energy-saving and emission-reduction has been developed. The realization of coupling solves the difficulty in the realization of various combustion modes an...

AI Technical Summary

Problems solved by technology

However, the public document still has the following deficiencies: first, it only involves the smooth switching between two modes, and does not involve the coordination of simultaneous requests for multiple modes; secondly, during the mode switching process, a new mode is generated The switching situation does not involve

The public document has the following deficiencies: first, it only involves three working modes, and there is no request for two working modes at the same time; secondly, it does not involve the content of how to switch working modes

The public document has the following deficiencies: first, it only involves the smooth switching between two modes, and does not involve the coordination of simultaneous requests for multiple modes; secondly, it does not involve the content of how to switch working modes

[0006] 1. For the engine control system with multiple working modes, there is no special control module to coordinate and process it, and it cannot effectively handle the simultaneous existence of multiple working mode requests;

[0007] 2. The types of work mode control requests are relatively simple. Generally, there are only requests to enter a certain work mode, and there are no other types such as prohibiting entering a certain work mode, entering any other work mode, and entering the default work mode. ;

[0008] 3. The transition form of working mode switching is relatively simple, and there is no switching from the current working mode to the requested one in different forms such as gradual switching, direct switching, and delayed switching according to the actual operating conditions of the engine and the requirements of the working mode request itself. The working mode cannot meet the requirements of the engine control system

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