A vehicle starting control method, device, equipment and medium

Abstract

The invention discloses a vehicle starting control method, device, equipment and medium, including: determining the starting state of the vehicle; The speed difference and the current throttle opening are used to determine the target correction coefficient to determine the engine starting torque, and control the vehicle to crawl and start with the engine starting torque; Determine the actual torque of the engine flywheel according to the efficiency and power loss; determine the starting torque of the engine flywheel according to the correction coefficient of the speed difference and the actual torque of the engine flywheel, so as to control the vehicle to start the accelerator with the starting torque of the engine flywheel and the starting torque of the clutch. The present application can correct the crawling demand torque and the engine torque, so as to reduce the severity of the engine speed drop and improve the starting stability.

Description

technical field [0001] The present invention relates to the technical field of automobiles, in particular to a vehicle starting control method, device, equipment and medium. Background technique [0002] During the starting process of the vehicle, the TCU (Transmission Control Unit, automatic transmission control unit) will send the crawling demand torque to the ECU (Electronic Control Unit, electronic control unit), also known as "travel computer", "vehicle computer", etc.), For the ECU to add the creep demand torque as a torque compensation amount to its own target torque, so that the final target output torque of the ECU is the sum of the creep demand torque and its own target torque. However, for the internal combustion engine, there is an error in the torque output of the engine, which causes the actual torque of the engine to fail to reach the final target output torque, resulting in the phenomenon that the starting speed of the vehicle drops, which in turn causes the ...

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present application provides a vehicle start control method, device, equipment and medium, which solves the technical problem of the engine speed dropping during the start process due to the high accuracy of the engine torque in the prior art, and realizes the avoidance of the engine speed during the start process. The technical effect of improving the stability of the vehicle starting when the engine speed drops

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