Vehicle drag torque measuring device

Abstract

The invention belongs to the technical field of vehicle testing, and relates to a vehicle drag torque measurement device, which includes a control device, a lifting assembly, a drive motor, a torque sensor, a shaft coupling, a joint, and a claw assembly for connecting wheels; the drive motor device On the lifting assembly; one end of the torque sensor is connected to the output end of the drive motor, and the other end is connected to the joint through a coupling; the claw assembly is arranged on the joint, and the distance between the claw of the claw assembly and the joint is adjustable; the drive The motor and the torque sensor are respectively connected to the control device by communication; it solves the problem that the existing solutions cannot accurately and efficiently test the dragging torque of the whole vehicle. The motor is driven by the lifting component, so that the test height can be adjusted freely. By adjusting the claw to the joint The distance makes the jaw assembly suitable for wheels of different sizes and has strong versatility; the rotation of the drive motor is controlled by the control device, and the drag torque is automatically monitored by the torque sensor, which improves the detection efficiency and accuracy.

Description

technical field [0001] The invention belongs to the technical field of vehicle testing, in particular to a measuring device for dragging moment of a whole vehicle. Background technique [0002] The drag torque of the whole vehicle refers to it, which will affect fuel consumption and emissions. At present, the commonly used measurement method is: when the vehicle is stationary on the lift in the maintenance room, use fixed tooling to clamp the wheel bolts and manually shake the torque wrench through the torque wrench dial readings. Preliminary estimation of the drag moment; this measurement method has the following disadvantages: [0003] 1) Since the drag torque is related to the rotation speed of the wheel, it is extremely difficult to grasp the rotation speed during manual operation in the existing method, which may easily cause inaccurate data; [0004] 2) Existing methods are easily limited by space and manual operation orientation, the artificial influence factors are ...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a vehicle drag torque measurement device for the problem that the existing solutions cannot accurately and efficiently test the drag torque of the whole vehicle

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