Open vehicle mechanical type automatic speed-variator electric control system

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...

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 specific functions. The control of the electronic control system is becoming more and more complex. When new components are added to the control system, new control algorithms are added, or existing subsystems are replaced, the control logic will inevitably change.

Therefore, for different product development processes, there are many repetitive tasks in each development process, and the scalability and portability of the control system are very poor.

The shortcomings of this closed automobile electronic control system development model carried out by each manufacturer independently are becoming more and more prominent

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