A method, device, system and storage medium for dynamic simulation of vehicle driving conditions

A dynamic simulation and vehicle driving technology, which is applied in the direction of measuring devices, vehicle testing, machine/structural component testing, etc., can solve the problems of insufficient speed prediction accuracy, achieve good real-time performance, small amount of calculation, and improve accuracy Effect

Inactive Publication Date: 2020-10-30
CHONGQING VOCATIONAL INST OF ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a method for dynamic simulation of vehicle driving conditions, aiming to solve the problem of insufficient speed prediction accuracy in the process of dynamic simulation of sub-vehicle loads in the prior art

Method used

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  • A method, device, system and storage medium for dynamic simulation of vehicle driving conditions
  • A method, device, system and storage medium for dynamic simulation of vehicle driving conditions
  • A method, device, system and storage medium for dynamic simulation of vehicle driving conditions

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Embodiment 1

[0037] like figure 2 As shown, in one embodiment, a method for dynamic simulation of vehicle driving conditions is provided, and this embodiment is mainly applied to the above-mentioned figure 1 The computer device 120 in is exemplified. A method for dynamically simulating vehicle driving conditions may specifically include the following steps:

[0038] Step S202, obtaining vehicle attribute parameters and simulated road condition parameters of the simulated vehicle, the vehicle attribute parameters at least including the real-time output parameters of the motor.

[0039] In the embodiment of the present invention, the vehicle property parameters of the simulated vehicle also include the vehicle mass, the wheel friction coefficient of the vehicle, the wheel radius, the moment of inertia of the wheel, and the moment of inertia of the engine, etc.; the real-time output parameters of the motor include at least the current motor speed, the current motor The output torque, the m...

Embodiment 2

[0098] like Figure 5 As shown, in one embodiment, a dynamic simulation device for vehicle driving conditions is provided. The dynamic simulation device for vehicle driving conditions can be integrated into the above-mentioned computer equipment 120, and can specifically include:

[0099] The data acquisition module 501 is configured to acquire vehicle attribute parameters and simulated road condition parameters of the simulated vehicle, where the vehicle attribute parameters at least include the real-time output parameters of the motor.

[0100] In the embodiment of the present invention, the vehicle property parameters of the simulated vehicle also include the vehicle mass, the wheel friction coefficient of the vehicle, the wheel radius, the moment of inertia of the wheel, and the moment of inertia of the engine, etc.; the real-time output parameters of the motor include at least the current motor speed, the current motor The output torque, the motor speed at the last moment...

Embodiment 3

[0159] In one embodiment, a system for dynamic simulation of vehicle driving conditions is provided, including:

[0160] A simulated vehicle includes at least a driving motor and a load motor.

[0161] In the embodiment of the present invention, the engine output of the vehicle is simulated by driving the motor, and the load motor is used to simulate the resistance load suffered by the vehicle in road conditions.

[0162] The data acquisition device is used to collect the real-time output parameters of the motor driving the motor, and the data acquisition device includes a speed sensor, a torque sensor, and the like.

[0163] The analog control module is used to obtain the real-time output parameters of the motor, and predict and control the speed of the driving motor in combination with the preset simulated road condition parameters.

[0164] In the embodiment of the present invention, such as Figure 8 As shown, the simulation control module is integrated on the computer e...

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Abstract

The present invention belongs to the technical field of vehicle driving working condition simulation test, and discloses a vehicle driving working condition dynamic simulation method, device and system, and a storage medium. The method comprises the steps of: obtaining vehicle attribute parameters and simulation road condition parameters of a simulated vehicle, wherein the vehicle attribute parameters at least comprise real-time output parameters of a motor; according to the real-time output parameters of the motor and the simulation road conditions, calculating the acceleration change degreevalue of the motor; according to the acceleration change degree value of the motor, selecting a preset rotation speed estimation algorithm to calculate the rotation speed prediction value of the motorof the simulation vehicle at the next moment; and according to the rotation speed prediction value of the motor, performing control and regulation of the motor output. The vehicle driving working condition dynamic simulation method provided by the embodiment of the invention can approximatively simulate the speed working condition of the vehicle through the acceleration change degree, is small incomputing and good in timeliness, and can accurately estimate the rotation speed value at the next moment to reduce the influence of the inaccurate speed estimation on the system control precision and improve the accuracy of the vehicle driving working condition dynamic simulation test.

Description

technical field [0001] The invention belongs to the technical field of simulation tests of vehicle driving conditions, and in particular relates to a dynamic simulation method, device, system and storage medium of vehicle driving conditions. Background technique [0002] The dynamic simulation technology of vehicle road conditions and loads is the key technology for simulating driving conditions such as vehicle starting, acceleration and deceleration, and dynamic shifting on the indoor test bench. The goal of dynamic simulation is to establish a control strategy that can simulate a large inertia The test object of the simulated system. The dynamic test of the drive train requires that the bench system can simulate the load of the working condition similar to that of the real vehicle on the road, so as to test the parameters in the actual work of the vehicle drive train assembly. [0003] At present, in the simulation technology, the target torque that needs to be applied to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007
Inventor 王晶晶邵雅雯
Owner CHONGQING VOCATIONAL INST OF ENG
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