Vehicle control method, device, storage medium, electronic device and vehicle

Abstract

The invention discloses a vehicle control method, device, storage medium, electronic equipment and vehicle, wherein the method includes the following steps: during the process of the vehicle coasting downshift, acquire the stage of the clutch of the vehicle, wherein the stage includes oil filling stage, speed synchronization stage, and power torque interaction stage; if the clutch is in the oil filling stage or speed synchronization stage, and the accelerator pedal signal is detected, then when the clutch is in the power torque interaction stage, the vehicle's engine torque and clutch torque of the next gear are obtained Interaction time with calibrated first torque; clutch control based on engine torque, next gear clutch torque and calibrated first torque interaction time. In this way, the smooth transition of the clutch torque can be realized, and the anti-interference ability of the torque exchange process to the external excitation can be improved, thereby improving the system shock and abnormal noise generated at the synchronous end when the gradient difference between the engine speed and the shaft speed of the next gear is large, Improve vehicle driving comfort.

Description

technical field [0001] The present invention relates to the technical field of automobiles, and in particular, to a vehicle control method, a vehicle control device, a computer-readable storage medium, an electronic device, and a vehicle. Background technique [0002] For automatic transmissions, when coasting downshifts to pedal downshifting, the engine speed synchronous control strategy directly affects shift smoothness and NVH performance. In the terminal control process where the synchronization between the engine speed and the next gear shaft speed is about to be completed, because there is a gradient difference between the engine speed change gradient and the next gear shaft speed change gradient during the synchronization process, when the synchronization end gradient difference is too large, at the same time, If the clutch in the target gear engages quickly (the torque rise gradient is faster), it will have an excessive impact on the transmission system, which will c...

AI Technical Summary

Problems solved by technology

[0002] For automatic transmissions, the shift from coasting downshift to stepping on the accelerator downshift, the engine speed synchronization control strategy directly affects the smoothness of shifting and NVH performance. During the end control process where the synchronization between the engine speed and the shaft speed of the next gear is about to be completed, there is a gradient difference between the engine speed change gradient and the shaft speed change gradient of the next gear during the synchronization process. When the gradient difference at the end of the synchronization is too large, at the same time, The faster the target gear clutch is combined (the torque rises faster), it will have an excessive impact on the transmission system, which will cause vibrations and abnormal noises in the whole vehicle, which will affect the driving quality and NVH problems.

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