Hybrid mode gearbox gear shifting control method and system based on energy distribution
An energy distribution and control method technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve problems such as die-cut switching sudden changes, and achieve the effect of simplifying calculations, simplifying and optimizing hybrid algorithms
Active Publication Date: 2020-04-14
JIANGLING MOTORS
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Problems solved by technology
[0003] In view of this, the main technical problem to be solved by the present invention is to provide a method for calculating adaptive gears according to torque distribution. The second purpose is to optimize the calculation of existing hybrid gears, simplify the designation of shift diagrams, and then One purpose is to solve the problem of sudden change caused by die-cut switching in the shifting process of the existing control algorithm
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[0025] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the drawings.
[0026] Such as figure 1 As shown, in this specific embodiment, the system of the present invention includes: a complete vehicle system, which calculates the required torque according to the obtained information (usually calculated by the pedal opening), and then the torque distribution module performs torque distribution to obtain the engine Allocate the torque (the required torque on the wheel side of the engine), and the torque economy zone adjustment module adjusts the above-mentioned engine distributed torque to obtain the redistributed engine torque, and the torque economy zone adjustment module uses this again After the distribution of the engine demand wheel torque and the corresponding maximum engine torque at the current vehicle speed, calculate the torque ratio, and then select the corresponding three-dimensional...
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The invention discloses a hybrid mode gearbox gear shifting control method and system based on energy distribution. The method comprises the following steps: in a hybrid mode, obtaining wheel-side required torque, and calculating torque distributed to an engine according to the wheel-side required torque and the minimum torque and the maximum torque of an engine working condition point in an economic area; under the condition that it is guaranteed that the working condition point of the engine is located in an engine oil consumption economic area, distributing the torque distributed to the engine again; then calculating a torque proportion according to the maximum torque of the engine corresponding to the current vehicle speed, and then selecting a corresponding three-dimensional gear shifting graph according to the current gear to obtain a gear shifting speed vehicle; and performing gear shifting according to the current gear and the upshift and downshift vehicle speed. Only one groupof gears Map in a pure engine mode needs to be calibrated, and the jumping of the gears after the mode is switched does not occur, so that the calculation of the hybrid gears can be simplified.
Description
Technical field [0001] The invention relates to a shift control of a hybrid vehicle, in particular to a shift control method and system of a hybrid mode gearbox based on energy distribution. Background technique [0002] At present, the gear position calculation of the gearbox in hybrid control is mostly realized by calibrating the shift diagrams corresponding to different modes after classification of the driving conditions and modes of the car; for example, application number: 201410586546.X application number 201710431263.1, invention The name is "A work mode control method for plug-in hybrid electric vehicles", which determines the gear position of the gearbox by obtaining the gear position signal of the gearbox. According to the different gear positions of the gearbox, the plug-in hybrid The hybrid power system of the automobile enters different working modes to work, and the name of the invention is "Gearbox gear control method based on P2 structure hybrid electric vehicle"...
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IPC IPC(8): B60W30/182B60W20/30
CPCB60W20/30B60W30/182
Inventor 叶兵飞金文辉丁文敏
Owner JIANGLING MOTORS