Method, device and equipment for controlling engine torque and storage medium

Abstract

The invention discloses a method, device and equipment for controlling engine torque and a storage medium. The method includes the steps that vehicle state information is obtained in real time and includes brake information, accelerator pedal opening degree, engine torque limit and actual engine torque; whether a vehicle is braked or not, whether the accelerator pedal opening degree is not lower than the preset opening degree value or not and whether the actual engine torque is greater than the engine torque limit or not are judged; when the vehicle is not braked, the accelerator pedal openingdegree is not lower than the preset opening degree value and the actual engine torque is greater than the engine torque limit, an engine is controlled to increase the preset torque; and until the actual engine torque is not greater than the engine torque limit and lasts for first preset time, the engine is controlled to exit the preset torque. When the actual engine torque is too high, quick response of engine torque is maintained to keep the actual engine torque closely following the engine torque limit, and thus the safety of hardware is ensured.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an engine torque control method, device, equipment and storage medium. Background technique [0002] In the automotive power system, the gearbox is responsible for transmitting power. In the automatic transmission system with a torque converter, the output shaft of the engine is connected to the input shaft of the gearbox through the torque converter. When the gearbox is designed, the maximum engine torque of each gear is specified. The maximum torque is determined by the gearbox hardware. It is used to ensure that the gearbox engine torque meets the design state and protect the gearbox hardware from being damaged due to excessive torque. The torque is called For the maximum transmission engine torque, the transmission control transmission engine torque should not exceed the maximum transmission engine torque under any circumstances, so the transmission control unit (TCU) needs ...

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Problems solved by technology

[0003]When the vehicle is in a non-stall state, the engine controller generally achieves the purpose of adjusting the torque by controlling the opening of the throttle valve, and requires the actual torque of the engine to closely follow the request The engine torque limit, especially do not exceed the engine torque limit, but the actual situation is that when the engine torque limit starts to intervene, the engine controller will respond through the air circuit, and the actual engine torque will slowly drop to follow the engine torque limit requested by the gearbox controller , the gearbox engine torque will exceed the maximum gearbox engine torque in the process, so there is a risk of hardware damage in this extreme case

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