Gear-shifting correction system for automatic transmission and correction method for gear-shifting correction system

Abstract

The invention discloses a gear-shifting correction system for an automatic transmission and a correction method for the gear-shifting correction system. The gear-shifting correction system is characterized by comprising a signal conditioning module, a signal acquiring and processing module, a processor and a solenoid valve drive module, wherein the processor comprises a travelling working condition identifying module, a driving intension identifying module, a decision-making module and a gear-shifting correction module. The correction method comprises the following steps: carrying out signal conditioning and acquiring on a sensor signal so as to acquire a signal required by the travelling working condition identifying module and the driving intension identifying module; carrying out travelling working condition and driving intension identification and split-flow processing, thereby obtaining a corrected object and an uncorrected object; and setting a response priority sequence and a corresponding gear-shifting correction parameter and a gear-shifting correction value of the of the corrected object, carrying out gear-shifting correction, and storing basic gear-shifting control parameters. According to the gear-shifting correction system and the correction method, gear-shifting control needs for different travelling working conditions and driving intensions can be met, and traveling safety, dynamic property and fuel economy of vehicles are improved.

Description

technical field [0001] The invention belongs to the technical field of automatic transmission control for vehicles, and in particular relates to a shift correction system and correction method of an automatic transmission. Background technique [0002] A general vehicle automatic transmission includes a number of transmission gears and clutches. Shifting is to control the combination and separation of the clutches according to the speed ratio of the transmission input shaft and output shaft required by the vehicle, so that the speed ratio of the transmission input shaft and output shaft becomes a new one. speed ratio. [0003] Automatic shifting control technology is the key technology of vehicle shifting control. Automatic shifting control mainly includes single-parameter, two-parameter, three-parameter, and even four-parameter basic shift control methods to improve fuel economy and smooth shifting sex. [0004] Under different driving conditions of the vehicle (such as u...

AI Technical Summary

Problems solved by technology

[0004] Under different driving conditions of the vehicle (such as uphill, downhill, low adhesion road, etc.), the basic shift control method of automatic transmission is set according to the normal flat road driving conditions, and different shift control strategies cannot be adopted according to different driving conditions of the vehicle and shift execution method to meet the current desired gear position and shift execution operation, resulting in reduced ride comfort, fuel economy and safety of the vehicle

[0005] The driver has different manipulation intentions in the process of driving the vehicle (such as accelerating overtaking and decelerating to avoid obstacles, etc.), the basic shift control method of automatic transmission is set according to the uniform speed driving intention of the vehicle, and different shift controls cannot be adopted according to different driving intentions Strategy and shift execution method to meet the current desired gear position and shift execution operation, resulting in reduced vehicle driving safety, power and fuel economy

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