Direct-set load torque and rotational inertia simulating system and control method thereof

Abstract

The invention provides a direct-set torque and rotational inertia simulating system and a control method thereof. The control method comprises providing the driving torque of the measurement input shaft of a torque sensor and collecting driving torque signals, computing the target torque of a load motor through a bench controller according to set load torque and set rotational inertia and the driving torque signals, sending load motor target torque instructions to a motor direct torque controller, and receiving the load motor target torque instructions and controlling the load motor to output corresponding torque through the motor direct torque controller. According to direct-set torque and rotational inertia simulating system and the control method thereof, by taking the torque as the controlled target, influence of acceleration computing errors on control precision can be avoided; adjusting control parameters according to different bench controllers can be omitted, and usage simplicity and dynamic responsiveness can be obtained; redundancy monitoring for the operation status of the bench controller can be achieved, so that the reliability of a bench can be enhanced.

Description

technical field [0001] The invention belongs to the field of test instruments, and in particular relates to a direct setting type load torque and moment of inertia simulation system and a control method thereof. Background technique [0002] In the mechanical transmission test bench, the inertia flywheel is a commonly used equipment, such as the brake test bench, the automobile transmission system test bench, etc., all need the inertia flywheel. Different test occasions require different moment of inertia, but the moment of inertia of the processed inertial flywheel has been fixed and cannot be adjusted. required moment of inertia. However, the flywheel is expensive, heavy, and has high requirements for dynamic balance, which brings inconvenience to the installation of the test bench and has potential safety hazards during high-speed rotation. With the development of motor control technology, the method of electrical simulation of mechanical inertia was proposed, using the...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a direct setting type load torque and moment of inertia simulation system, aiming to solve the complex use of simulation devices in the prior art, poor dynamic response performance, double closed-loop control and adjustment of control parameters, and Problems with acceleration-dependent calculation errors

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