Mobile numerical control model vehicle

Abstract

The invention discloses a mobile numerical control model vehicle comprising a vehicle body platform. At least one electromagnetic actuator for applying assigned exciting load on the model vehicle is fixedly connected to the vehicle body platform, MIMO (multiple-input multiple-output) closed-loop control equipment for vibration control of the electromagnetic actuators is connected to the input end of each electromagnetic actuator, a force sensor and / or an acceleration sensor for feeding back sensed exciting force signals and acceleration signals to the MIMO closed-loop control equipment is connected to the output end of each electromagnetic actuator, and the MIMO closed-loop control equipment corrects vibration control signals outputted by the MIMO closed-loop control equipment to the electromagnetic actuators according to differences obtained by comparing the fed exciting signals with expected signals. The mobile numerical control model vehicle has the advantages that the model vehicle is provided with the electromagnetic actuators adopting closed-loop control and is capable of setting the actuators according to users' needs and simulating power load generated during actual operation of vehicles to enable simulation to be more approximate to the real situation; the model vehicle body platform has a control function.

Description

technical field [0001] The invention relates to the technical field of high-speed vehicle simulation systems, in particular to a mobile numerical control model car. Background technique [0002] When the vehicle is running at high speed, the vehicle will vibrate vertically and horizontally due to irregular tracks or roads. This vibration will have a serious impact on driving safety, passenger comfort, building structure safety and the surrounding environment, such as aggravating the vehicle Vibration may cause the vehicle to derail, overturn, reduce the comfort of passengers, and affect surrounding buildings. Therefore, the analysis and research on traffic vibration is imperative. However, in many cases, the field test conditions are complex and the test costs are very high. Therefore, a model car that can well simulate the dynamic excitation of the actual running vehicle on the lower structure is needed for indoor model test research, thereby replacing the field test. How...

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Problems solved by technology

However, in many cases, the field test conditions are complex and the test cost is very high. Therefore, a model car that can well simulate the dynamic excitation effect of the actual running vehicle on the lower structure is needed for indoor model test research, thereby replacing the field test.

However, the existing model cars either do not have a power traction system and a control system themselves, and need to rely on other traction equipment to assist in operation during the test; or they need to use a generator to generate electricity, generate alternating current for power supply, and then perform frequency conversion control, so that the model The vehicle control is very cumbersome; at the same time, because the vehicle is not equipped with a vibration exciter, it is just a simple vehicle body, which cannot effectively simulate the vehicle excitation load

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