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Simulation method and device for interface circuit

A technology of interface circuit and simulation method, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as inaccurate simulation results, inability to simulate various faults, and simulation effects that cannot meet test requirements, etc., to improve Accuracy, efficiency-enhancing effects

Active Publication Date: 2018-08-14
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There will be a micro control unit in each interface circuit, and the direct simulation test of the interface circuit with the micro control unit will cause inaccurate simulation results; in addition, many failures will be encountered in the actual use process, and the current simulation Various failures cannot be simulated during the process, resulting in simulation effects that cannot meet the test requirements

Method used

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  • Simulation method and device for interface circuit
  • Simulation method and device for interface circuit
  • Simulation method and device for interface circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] An embodiment of the present invention provides a simulation method for an interface circuit, see figure 1 , the method flow includes:

[0048] 101: Obtain an interface circuit to be tested, where there are one or more interface circuits to be tested;

[0049] 102: Obtain a replacement electronic device equivalent to replace the micro control unit in the interface circuit to be tested, and use the replacement electronic device to replace the micro control unit in the interface circuit to be tested;

[0050] 103: Obtain input parameters for the interface circuit to be tested; the input parameters include: circuit parameters and / or fault state parameters;

[0051] 104: Generate a simulation model according to the interface circuit to be tested after equivalent replacement, preset input switches and input parameters, and obtain monitoring points in the simulation model; there are one or more monitoring points;

[0052] 105: Inputting the simulation model into the simulat...

Embodiment 2

[0060] An embodiment of the present invention provides a simulation method for an interface circuit, see Figure 5 , the method flow includes:

[0061] 501: Obtain an interface circuit to be tested, where there are one or more interface circuits to be tested.

[0062] Wherein, step 501 can be realized through the following steps:

[0063] 5011: Obtain the function item selected by the user to be tested, and the function item to be tested is one or more.

[0064] In the simulation test system, testers can select the functional items to be tested through the list of functional items given by the simulation system.

[0065] 5012: Select the interface circuit to be tested corresponding to the function item to be tested from the preset correspondence between the function item and the interface circuit.

[0066] Wherein, the interface circuit to be tested includes each electronic component and the connection relationship of each electronic component.

[0067] 502: Obtain a repla...

Embodiment 3

[0093] An embodiment of the present invention provides a simulation device for an interface circuit, see Figure 7 , the device consists of:

[0094] The first obtaining module 701 is used to obtain the interface circuit to be tested, and there are one or more interface circuits to be tested;

[0095] The second obtaining module 702 is used to obtain a replacement electronic device equivalent to replace the micro control unit in the interface circuit to be tested, and use the replacement electronic device to replace the micro control unit in the interface circuit to be tested;

[0096] The third acquisition module 703 is configured to acquire input parameters for the interface circuit to be tested; the input parameters include: circuit parameters and / or fault state parameters;

[0097] The generation module 704 is used to generate a simulation model according to the interface circuit to be tested after equivalent replacement, preset input switches and input parameters, and ob...

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Abstract

The invention discloses a simulation method and device for an interface circuit, belonging to the field of circuit simulation. The method includes: obtaining the interface circuit to be tested; obtaining a replacement electronic device equivalent to replace the micro control unit in the interface circuit to be tested, and using the replacement electronic device to replace the micro control unit in the interface circuit to be tested; The input parameters of the interface circuit; generate a simulation model according to the equivalently replaced interface circuit to be tested, the preset input switch and input parameters, and obtain the monitoring points in the simulation model; input the simulation model into the simulation environment for simulation testing , and collect the circuit parameters of the monitoring points during the simulation test. The invention replaces the micro control unit by means of equivalent replacement, restores the actual circuit, makes the simulation result closer to the real situation, and improves the accuracy of the simulation; by setting the fault state, it simulates the actual use situation more realistically and improves the accuracy of the simulation. the efficiency of the simulation.

Description

technical field [0001] The invention relates to the field of circuit simulation, in particular to a simulation method and device for an interface circuit. Background technique [0002] With the rapid development of the automobile industry, there are more and more electronic functions in automobiles, and electronic functions need to involve circuit design. In order to avoid problems caused by unreasonable circuit design, it is necessary to perform circuit simulation before normal production. Check whether the circuit design is reasonable. [0003] In the prior art, when simulating a circuit, a simulation model is generated according to the interface circuit corresponding to various functions that need to be tested, and the simulation model and circuit parameters are input into the simulation environment for testing, so as to achieve better performance through continuous debugging. Reasonable circuit design. [0004] The inventor finds that the prior art has at least the fol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 卢云陈宝军
Owner CHERY AUTOMOBILE CO LTD