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A shift control method and system for a hybrid mode transmission based on energy distribution

A technology of energy distribution and control method, which is applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., and can solve problems such as sudden change in die-cutting switching

Active Publication Date: 2021-09-17
JIANGLING MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • A shift control method and system for a hybrid mode transmission based on energy distribution
  • A shift control method and system for a hybrid mode transmission based on energy distribution
  • A shift control method and system for a hybrid mode transmission based on energy distribution

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Embodiment Construction

[0025] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, in this specific embodiment, the system of the present invention includes: the whole vehicle system, which calculates the required torque according to the obtained information (usually calculated through the pedal opening), and then performs torque distribution by the torque distribution module to obtain the engine Distribute torque (distributed to the engine wheel side demand torque), and adjust the torque economic zone of the above-mentioned engine distribution torque by the torque economic zone adjustment module to obtain the redistributed engine torque, and use the torque economic zone adjustment module to redistribute Calculate the torque ratio from the allocated engine demanded wheel torque and the corresponding maximum engine torque at the current vehicle speed, and...

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Abstract

A shift control method and system for a hybrid mode transmission based on energy distribution. In the hybrid mode, the required torque at the wheel is obtained, and the torque allocated to the engine is calculated according to the required torque at the wheel, the minimum torque and the maximum torque at which the engine operating point falls in the economic zone; In the case of the fuel economy area, redistribute the torque allocated to the engine; then calculate the torque ratio according to the maximum torque of the engine corresponding to the current vehicle speed, and then select the corresponding three-dimensional shift map according to the current gear to obtain the shift speed ; Shift gears according to the current gear position and up / down gear speed. It only needs to calibrate a set of gear map in pure engine mode, and there will be no gear jump after mode switching, which can simplify the calculation of hybrid gear.

Description

technical field [0001] The invention relates to a shift control of a hybrid vehicle, in particular to a method and system for shift control 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 based on the vehicle driving conditions and mode classification; for example, the application number: 201410586546.X, the application number is 201710431263.1, the invention The name is "A Working Mode Control Method for Plug-in Hybrid Electric Vehicle", which determines the gear position of the gearbox by obtaining the gear position signal of the gearbox, and makes the plug-in hybrid electric vehicle The hybrid power system of the car enters different working modes to work, and the title of the invention is "Gearbox Gear Control Method Based on P2 Structure Hybrid Electric Vehicle", which uses t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/182B60W20/30
CPCB60W20/30B60W30/182
Inventor 叶兵飞金文辉丁文敏
Owner JIANGLING MOTORS