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Method and system for identifying engine combustion and readable storage medium

An engine and engine starting technology, applied in motor vehicles, transportation and packaging, hybrid vehicles, etc., can solve the problems of inability to accurately identify the engine and the existence of risks, and achieve reduced calibration workload, high torque accuracy, and accurate torque control. Effect

Active Publication Date: 2020-04-21
UNITED AUTOMOTIVE ELECTRONICS SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for identifying engine combustion and a readable storage medium to solve the problem in the prior art that there is a risk that the EMS always executes the fuel injection ignition command because it cannot accurately identify whether the engine is burning

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  • Method and system for identifying engine combustion and readable storage medium
  • Method and system for identifying engine combustion and readable storage medium
  • Method and system for identifying engine combustion and readable storage medium

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Embodiment Construction

[0043] As described in the background technology, the existing methods for identifying engine combustion have the problem of being unable to accurately identify whether the engine is burning, and the EMS always executes the fuel injection ignition command and there are risks. The existing risks are as follows:

[0044] 1) EMS cannot cut off the oil in time, and the engine hardware may be damaged when there is too much gasoline in the cylinder;

[0045] 2) EMS calculates the output torque of the engine incorrectly, for example, the output torque at the flywheel end is a large positive value, but the actual torque is negative;

[0046] 3) EMS diagnoses according to normal combustion conditions, and may misreport other faults;

[0047] 4) The oxygen sensor exceeds the dew point in advance, resulting in damage to the oxygen sensor;

[0048] 5) If the engine is not stopped in time, the resistance torque of the engine will cause the battery power to continue to drop and the energy ...

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Abstract

The invention provides a method and a system for identifying engine combustion and a readable storage medium. The method comprises the steps: controlling engine oil injection ignition for any drivingcycle after an engine is dragged by a motor to reach a preset rotating speed; correcting the resisting moment of the engine according to the motor torque; and according to the motor torque and the corrected resisting moment of the engine, determining whether the engine burns or not in the current driving cycle. By means of the scheme, the problem that in the prior art, due to the fact that whetheran engine burns or not cannot be accurately recognized, an EMS always executes an oil injection ignition instruction, and risks exist can be solved.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a method and system for different engine combustion and a readable storage medium. Background technique [0002] Hybrid vehicles can not only improve the fuel economy of the vehicle, but also improve the power performance of the vehicle. figure 1 It is a structural diagram of the hybrid power system of a hybrid electric vehicle, in which the generator MG1 and the engine are meshed through gears, and the transmission ratio is 2.404. When the vehicle speed is below 70Km / h, the clutch C1 is normally open, and the engine speed is controlled by the generator MG1. And in response to the torque demand of the generator, the hybrid system works in series mode. [0003] figure 2 It is the start-up process of the hybrid power system in series mode and the logic diagram for judging the success of starting. The start-up process of the hybrid power system in series mode is ...

Claims

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Application Information

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IPC IPC(8): B60W20/15B60W20/50B60W10/06B60W10/08
CPCB60W20/15B60W20/50B60W10/06B60W10/08B60W2510/083B60W2710/0666Y02T10/62
Inventor 廖一橙蔡光权罗荣锋
Owner UNITED AUTOMOTIVE ELECTRONICS SYST
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