Signal matching method and signal matching device for vehicle engine hardware-in-loop simulation process

A vehicle engine and signal matching technology, applied in program control, computer control, general control system, etc., to achieve the effect of reducing requirements, reducing performance requirements, and reducing costs

Inactive Publication Date: 2015-02-18
WUHAN UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] The above existing known engine hardware-in-the-loop simulation signal matching methods still have shortcomings

Method used

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  • Signal matching method and signal matching device for vehicle engine hardware-in-loop simulation process
  • Signal matching method and signal matching device for vehicle engine hardware-in-loop simulation process
  • Signal matching method and signal matching device for vehicle engine hardware-in-loop simulation process

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Embodiment Construction

[0038] Attached below Figure 1-4 The specific embodiments of the present invention are described in further detail.

[0039] Such as Figure 1-4 The implementation of the present invention needs to be established on the existing engine hardware-in-the-loop simulation platform, that is, the engine real-time simulation model has been constructed and can be run on the real-time simulation platform; the engine control ECU has basic control logic, and its hardware interface meets the actual engine Various types of sensors for object configuration. The engine simulation model of the hardware-in-the-loop simulation platform replaces the real engine operation and is used in the experimental steps in the development of the engine ECU controller. The signal with physical meaning output by the engine real-time simulation model can be converted into an analog electrical signal physical quantity conforming to the characteristics of the sensor through the sensor interface model, and output th...

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Abstract

The invention relates to a signal matching method and a signal matching device for a vehicle engine hardware-in-loop simulation process. On the background and the base of a traditional engine hardware-in-loop simulation system, signal matching circuits are arranged between a target machine and an engine ECU (electronic control unit), and respectively used for performing matching on a low-speed signal and a high-speed signal. According to the signal matching method and the signal matching device, the signal matching problems between a data acquisition card of the target machine and the engine ECU during vehicle engine hardware-in-loop simulation are solved mainly; not only can level switch be realized but also the generation and the acquisition of the high-speed signal during the simulation process can be completed by utilizing hardware; the requirement of the simulation on the performance of a hardware-in-loop simulation platform can be effectively reduced; real-time simulation performed by the model by a smaller step size can be realized by utilizing a simulation platform with lower configurations.

Description

Technical field [0001] The invention relates to the technical field of vehicle engine hardware-in-the-loop simulation testing, in particular to a signal matching method and device in the vehicle engine hardware-in-the-loop simulation process. Background technique [0002] Modern automotive electronics development processes often adopt the V-shaped model, which has the advantages of high development efficiency, time-saving, labor-saving, and low development risk compared to traditional development processes. Hardware-in-the-loop simulation is a link in the V-shaped development process. In the development process of vehicle engine control system, the use of hardware-in-the-loop simulation technology mainly refers to the use of real-time engine simulation model instead of physical engine as the control object, and data acquisition card or other types of interface conversion circuits to convert the running results of the simulation model Converted into real electrical signals, connec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
Inventor 曾春年孟磊李向华罗文魏晓旭
Owner WUHAN UNIV OF TECH
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