Method and device for controlling gear shifting of a vehicle
A technology for gear shift control and vehicles, which is applied in the direction of transmission control, components with teeth, belts/chains/gears, etc. Reasonable file effect
Active Publication Date: 2017-05-17
奇瑞控股集团有限公司
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Problems solved by technology
[0006] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a vehicle gear shift control method and device to solve the problem that the existing gear shift scheme cannot flexibly adapt to the current driving situation, so as to improve the rationality of the vehicle gear shift
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[0020] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] The invention provides a vehicle shift control scheme. By establishing a neural network model, the membership degree value of each shift mode is calculated according to the characteristic quantity corresponding to each shift mode and the connection weight coefficient of each shift mode, and according to each shift mode The connection weight coefficient between the gear modes is used to determine the weight of each gear shift mode under the current working conditions, and then optimiz...
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The invention provides a vehicle gear shift control method and device. A gear shift parameter corresponding to each gear shift mode is taken as a character value, a membership degree value of each gear shift mode is calculated with a neural network algorithm, weight occupied by each gear shift mode in a current work condition is calculated, and after each gear shift speed in each gear shift mode under the current work condition is determined, the optimal gear shift speed under the current work condition is calculated according to the weight occupied by each gear shift mode in the current work condition and each gear shift speed in each gear shift mode under the current work condition, so that the gear shift speed is automatically optimized. The invention provides a flexible and variable gear shift strategy. The gear shift strategy can be timely adjusted according to the current vehicle condition, the driving state and the road condition change, so that a gear shift wire of a vehicle is more reasonable, and the driving experience of a driver is enhanced.
Description
technical field [0001] The invention relates to the technical field of gear shift control of an automatic transmission of an automobile, in particular to a vehicle gear shift control method and device realized by using a neural network algorithm. Background technique [0002] According to different road conditions, climates and different driving needs of users, automobile manufacturers will set several shift modes before the car leaves the factory. Usually, the shift modes include: economy mode, sports mode, uphill mode, downhill mode, warm mode, etc. There are 7 modes of machine mode, thermal protection mode and plateau mode. [0003] Most cars matched with automatic transmissions use dual shift parameters to control shifting. The shifting parameters are mostly vehicle speed and accelerator opening, and corresponding shift lines are set for each gear position in the above seven modes. [0004] However, the existing shifting schemes of automatic transmissions simply disting...
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IPC IPC(8): F16H61/04F16H61/02F16H59/44F16H59/66
CPCF16H59/44F16H59/66F16H61/0204F16H61/04F16H2061/0084F16H2061/0234
Inventor 戴祥亭倪斌
Owner 奇瑞控股集团有限公司