Pure electric vehicle dual-motor automatic transmission control system and control method thereof

A technology of automatic transmission and pure electric vehicles, which is applied in the direction of transmission control, mechanical equipment, components with teeth, etc., can solve the problems of low maximum vehicle speed, insufficient power on slopes, etc., and achieve fast calculation, powerful functions, and high precision effect

Active Publication Date: 2017-12-26
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a pure electric vehicle dual-motor automatic transmission control system and its control method, which can achieve low cost, smooth and reasonable shifting, and can solve the problems of insufficient power on slopes and low maximum speed question

Method used

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  • Pure electric vehicle dual-motor automatic transmission control system and control method thereof
  • Pure electric vehicle dual-motor automatic transmission control system and control method thereof
  • Pure electric vehicle dual-motor automatic transmission control system and control method thereof

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Embodiment Construction

[0021] like figure 1 , figure 2 As shown, the dual-motor automatic transmission control system for pure electric vehicles of the present invention includes a control unit 70, a sensor detection signal module 71, a switch selection signal module 72, an execution control module 73, a gear position and fault display module 74, and a dual-motor module 75 , gearbox module 76, described sensor detection signal module 71 comprises the brake pedal position sensor C1 that links to each other respectively with control unit, accelerator pedal position sensor C2, the angle sensor C3 that detects gradeability and vehicle speed sensor C4; Described switch The selection signal module 72 includes a selection switch K1 for manual and automatic gears and a driving mode switch K2 respectively connected to the control unit; The gear actuator is connected to the gearbox module, the high-speed electromagnetic reversing valve is connected to the control unit bidirectionally, the input end of the d...

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Abstract

The invention relates to a control system and a control method for a dual-motor automatic transmission of a pure electric vehicle, and relates to the field of electric vehicle control. The control system includes a control unit, a sensor detection signal module, a switch selection signal module, an execution control module, a fault display module, and a dual motor The module and the gearbox module adopt the high-speed digital signal processing chip DSPTMS320F28335 for real-time control, and also adopt dual-motor automatic variable speed control, which can realize the switching of four driving modes and improve the power and economy of electric vehicles. The law of the three parameters of opening change rate, vehicle speed, and slope angle of climbing has been established, and the control strategy for automatic shifting and torque change and hill start has been formulated, and the problems of insufficient power on hills and low maximum speed have been solved.

Description

technical field [0001] The invention relates to the field of electric vehicle control, in particular to a control system and a control method for a dual-motor automatic transmission of a pure electric vehicle. Background technique [0002] With the increasingly serious problems of energy shortage and environmental pollution, pure electric vehicles, as energy-saving and environment-friendly vehicles, have received more and more attention from the government and enterprises. And with the rapid development of automotive electronics, automotive intelligence is the general trend. Although the electric vehicle manual transmission has a simple structure and low cost, it has the problems of inconvenient operation, low maximum speed, and insufficient power for climbing, especially for starting on a hill. Contents of the invention [0003] The purpose of the present invention is to provide a pure electric vehicle dual-motor automatic transmission control system and its control meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/02
CPCF16H59/02
Inventor 伍松周振华
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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