Heavy chassis dynamometer road resistance simulation control system and method

A technology of chassis dynamometer and road resistance, which is applied in the direction of measuring device, vehicle test, machine/structural component test, etc. Effects of controlling precision and accuracy, increasing responsiveness and computing power, increasing simulation power

Inactive Publication Date: 2019-07-05
CHONGQING CAERI AUTOMOBILE TEST EQUIP DEV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention intends to provide a heavy-duty chassis dynamometer road resistance simulation control system and a heavy-duty chassis dynamometer road resistance simu

Method used

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  • Heavy chassis dynamometer road resistance simulation control system and method
  • Heavy chassis dynamometer road resistance simulation control system and method
  • Heavy chassis dynamometer road resistance simulation control system and method

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Embodiment Construction

[0030] The following is further described in detail through specific implementation methods:

[0031] Such as figure 1 As shown, the heavy-duty chassis dynamometer road resistance simulation control system provided in this embodiment includes a first motor, a second motor, a first control module, a second control module, a first detection module, a second detection module, a first The detection module is used to detect the speed and torque of the first motor, the second detection module is used to detect the torque of the second motor, and the first control module is used to calculate the total load control amount according to the road resistance equation and the speed of the first motor, The second control module is used to send the torque detected by the second detection module to the first control module, and the first control module is also used to calculate the difference between the total load control amount and the torque of the second motor to obtain the actual load co...

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Abstract

The invention relates to the technical field of automotive chassis tests, and in particular relates to a heavy chassis dynamometer road resistance simulation control system and method. The system comprises a first control module, a second control module, a first detection module and a second detection module; the first detection module is used for detecting the rotation speed and the torque of a first motor; the first control module is used for computing an overall loaded control quantity, also used for computing a difference between the overall loaded control quantity and the torque of a second motor, and thus acquiring an actual loaded control quantity, and also used for putting the difference between the actual loaded control quantity and the torque of the first motor into a closed loopPID control algorithm to acquire a control output quantity, and controlling the torque of the first motor; and the second control algorithm is also used for controlling the second motor and the firstmotor to keep consistent rotation speed. According to the heavy chassis dynamometer road resistance simulation control system and method provided by the invention, the problem that the existing dynamometer road resistance simulation capacity cannot meet experimental requirements of the heavy automobile can be solved.

Description

technical field [0001] The invention relates to the technical field of automobile chassis testing, in particular to a road resistance simulation control system and method for a heavy-duty chassis dynamometer. Background technique [0002] Automobile chassis dynamometer system is a special equipment for indoor testing of vehicle power and durability. It has been applied to the detection of automobile chassis long ago. In the past, the mechanical inertia was used to simulate the mass of the vehicle, and various small dynamometers were used to simulate the road resistance of the vehicle. Using this method to test the inertia of the system cannot achieve stepless changes, and the simulation of the vehicle mass is very inaccurate. The simulation cannot truly reproduce the actual working conditions. With the continuous maturity of the AC control technology, the current domestic and foreign countries are competing to use the AC frequency conversion technology to simulate the momen...

Claims

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Application Information

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IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 李貌
Owner CHONGQING CAERI AUTOMOBILE TEST EQUIP DEV
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