A dual-clutch automatic transmission device and control method based on bp neural network

Abstract

The invention discloses a double-clutch automatic transmission control method based on a BP neural network. The double-clutch automatic transmission control method comprises the steps that 1, an inputlayer vector, a middle layer vector and an output layer vector of a three-layer neural network are determined; 2, a training sample is obtained according to historical data to train the neural network; 3, the rotational speed n of a car engine, the throttle percentage theta, the travelling speed v and the rotating angle beta of a steering wheel are measured by sensors according to a certain sampling period and normalized, and the input layer vector and the output layer vector are obtained; 4, the engagement speed of a double-clutch automatic transmission during gear shifting and the positive pressure between driving pieces and driven pieces of clutches are controlled; and 5, according to gear shifting completing information in the output layer vector, the operating state of the clutches is judged. According to the double-clutch automatic transmission control method based on the BP neural network, the optimal control trajectory can be obtained according to the gear shifting processes under different working conditions.

Description

technical field [0001] The invention relates to the field of automobile transmission control, in particular to a dual-clutch automatic transmission device and control method based on BP neural network. Background technique [0002] Automatic transmission is an important symbol of the development level of the automobile industry and a main manifestation of the international competitiveness of automobile core technology, and occupies an important share in the automobile industry. Dual Clutch Transmission (DCT) is a new type of automatic transmission technology. Its structure can be simply described as two transmissions with an odd gear and an even gear. The gear clutch is engaged to realize power shifting without interruption, which not only has good shifting quality, but also has the advantages of high transmission efficiency, simple and compact structure, wide range of torque adaptability, and easy multi-gear. With the development of the automobile industry and the stricter...

AI Technical Summary

Problems solved by technology

However, dual-clutch automatic transmissions often realize gear shifting according to established parameter settings, and it is difficult to perform more intelligent work taking into account more complex vehicle conditions, road feature information, traffic conditions, and driver operation information.

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