Open vehicle mechanical type automatic speed-variator electric control system

A technology of automatic transmission and electronic control system, which is applied to vehicle components, circuits or fluid pipelines, transportation and packaging, etc. It can solve problems such as control logic changes, high real-time requirements, and complex control of electronic control systems. The effect of code reuse

Inactive Publication Date: 2008-12-31
SHANDONG UNIV
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many manufacturers of automotive electronic control systems, the processors used in the systems are also very different, and the operating environments are different. Therefore, a major problem in developing multi-processor real-time embedded systems in automotive networks is the reuse of embedded software. At the same time, the embedded system itself has limited resources and has high requirements for real-time performance.
In addition, the control logic of the automotive electronic control system specifies the sequence of steps and events necessary for the electronic control unit (ECU) to complete

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Open vehicle mechanical type automatic speed-variator electric control system
  • Open vehicle mechanical type automatic speed-variator electric control system
  • Open vehicle mechanical type automatic speed-variator electric control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] figure 1 It is a hardware structure diagram of the automotive AMT system, which includes a complex programmable logic device CPLD and a DSP processor, in which the digital I / O port of the CPLD collects the input shaft speed and transmission speed of the gearbox through the Hall sensor and the quadrature encoder respectively. The speed of the output shaft of the tank and the speed of the engine are calculated to obtain the speed of the three shafts, which provides the basis for automatic gear shifting; the digital I / O port also collects the neutral switch, reverse gear switch, high and low gear switch, handle switch, throttle Limit switch and other digital input signals; the digital I / O port of CPLD controls the action of throttle stepper motor, transmission gear selection, and clutch high-speed switch valve;

[0031] The analog input port of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an open type vehicle mechanical automatic transmission electric-control system which solves the problems of closeness and repeated working in the existing vehicle electron researching and developing and has the advantages of reasonable structure, good reconstruction and planting performances, easy maintenance, etc. The structure of the open type vehicle mechanical automatic transmission electric-control system is divided into three layers; the bottom layer consists of an ECU module and hardware as well as an operation system abstract layer, is a hardware platform for the software of the system to run and accomplishes the control and drive functions; the middle layer is a software bus which consists of a quanta framework and realizes the communication between the software bus and the bottom layer by an interface configuration file; the top layer is a system control layer which consists of a plurality of functional modules which take the inner core of a state machine as the core; each functional module has a functional module description file; then the functional module description files are communicated with the software bus by the interface of the control layer to accomplish the information alternation between modules; each functional module is independent.

Description

technical field [0001] The invention relates to the technical field of automobile electronics, in particular to an open electronic control system for an automatic mechanical transmission of an automobile. Background technique [0002] AMT is a high-tech product integrating machine, electricity, liquid and gas. Its basic control idea is: according to the driver's intention (acceleration pedal, brake pedal, selector switch, etc.) Gear shift schedule, clutch engagement schedule, etc.), with the help of corresponding actuators (throttle control actuators, gear selection actuators, clutch separation and engagement actuators), the power transmission system (engine, clutch, transmission) of the vehicle is combined. control. [0003] my country's AMT research and development work started relatively late. During the "Ninth Five-Year Plan" period, the development and productization of AMT was included in the national "Ninth Five-Year Plan" scientific and technological research proje...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B60W10/10B60W10/06B60R16/02
Inventor 张承瑞李晓军
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap