Vehicle controller based on model design

A vehicle controller and model design technology, applied in computer control, simulator, program control, etc., can solve the problems of vehicle controller hardware function, driving software and control method description, time-consuming and labor-intensive testing work, etc. Achieve the effect of enriching hardware resources and interfaces, improving development efficiency, and being easy to cut

Pending Publication Date: 2018-07-31
HENAN MECHANICAL & ELECTRICAL VOCATIONAL COLLEGE
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 3. Due to the difference between mass-production-level vehicle controllers and rapid prototype hardware platforms, developers need to perform work such as fixed-point floating-point models, integration of basic software and application software, and testing is time-consuming and labor-intensive.
[0006] China, the application publication number is CN104249670A, and the application publication date is September 20, 2014. The invention patent application discloses a general-purpose vehicle controller based on model design. The invention mainly implements hardware that can meet the needs of different vehicle control systems Functions, the hardware conditions provided for model-based design, have a certain general-purpose hardware, but do not describe the special hardware functions, driver software, and control methods of the vehicle controller

Method used

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  • Vehicle controller based on model design
  • Vehicle controller based on model design
  • Vehicle controller based on model design

Examples

Experimental program
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Effect test

Embodiment 1

[0025] see figure 1 A model-based design vehicle controller includes vehicle controller hardware, vehicle controller driver software model library and vehicle controller application software.

[0026] see figure 2 , the hardware module of the vehicle controller includes a system power supply and management module, a central processing unit, a storage module, an input signal processing module, an output signal processing module, a communication module, a fault detection and protection module and connectors;

[0027] see figure 2 , the central processing unit adopted is a 32-bit processor with a main frequency of 150MHz and supports floating-point operations;

[0028] see figure 2 , the system power supply and management module includes a system power supply module, a sensor power supply module and a power-off delay module, and the system power supply module converts the power supply of the vehicle controller into 7.5V, 5V, 3.3V, 1.8V is the power supply for the central p...

Embodiment 2

[0034] see image 3 , is the vehicle controller driver software model library. The software modules in the model library replace the basic software realized by traditional handwritten C codes, and are integrated in the Matlab / Simulink software library, and the input and output interfaces of the control strategy (application software) are respectively connected to the corresponding software library according to the signal type. The input and output modules in the system are connected to make the application software and the basic software seamlessly connected. All of them are built in the Matlab / Simulink environment. After the simulation and verification are completed, the product-level C code is automatically generated through configuration and flashed through the Bootloader. Write to the CPU, test and calibrate, and finally realize the rapid prototype development, testing and mass production of the vehicle controller. The vehicle controller driver software model library incl...

Embodiment 3

[0050] see Figure 4 , is the application software development environment built by using the driver model library, mainly including a system configuration module 401 , a monitoring and calibration variable 402 , a periodic task scheduling module 403 and a periodic subtask module 404 .

[0051] see Figure 4 , the monitoring and calibration variable 402 is used to create a variable interface that needs to be monitored and calibrated;

[0052] see Figure 4 ,use image 3 The peripheral interrupt triggering module and the interrupt response module in the set up the periodic task scheduling module 403 to realize the setting of the calling cycle;

[0053] see Figure 4 , the periodic subtask module 404 is used to execute the periodic tasks of the application software.

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Abstract

The invention discloses a vehicle controller based on model design. The vehicle controller is composed of vehicle controller hardware, a vehicle controller driving software model base and vehicle controller application software, wherein the vehicle controller hardware comprises a system power supply and managing module, a central processing unit, a storage module, an input signal processing module, an output signal processing module, a communication module, a fault detection protection module and a connector. The vehicle controller can meet vehicle control requirements of different vehicle types and application scenes, can support floating point arithmetic central processing units and provides basic conditions for design based on models; a driving software model base developed based on thevehicle controller achieves quick instantiation test and verification of the vehicle controller, and a developing efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of automobile electronic control, in particular to a model-based design vehicle controller. Background technique [0002] At present, the development of vehicle controllers of mainstream manufacturers adopts the "V" process development mode. In the rapid prototyping stage before the floating-point model of the control algorithm generates fixed-point codes, the rapid prototyping equipment is used to develop and debug the control strategy; the fixed-point code production Finally, mass-production-level vehicle controllers are used for semi-physical and physical testing until mass production. The above process has the following problems: [0003] 1. Rapid prototyping equipment is expensive and has many functional modules, but in the development process of the vehicle controller, less than 40% of the total number of modules are actually used, which is a waste of resources; [0004] 2. Rapid prototyping equipmen...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 王蕾段现星郭三刺贾利军薛姣卢庆收田金鑫张志显
Owner HENAN MECHANICAL & ELECTRICAL VOCATIONAL COLLEGE
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