Single-roller tire rolling resistance measuring method in finished-automobile mode

Abstract

The invention provides a single-roller tire rolling resistance measuring method in a finished-automobile mode. The single-roller tire rolling resistance measuring method comprises the steps of reversely dragging a motor to enable the rotary drum acting force on a driving wheel to be towards the front of an automobile, and adjusting the adjustable motor to stabilize the rotating speed of the automobile driving wheel in a normal running speed range. A three-component-force sensor measures the counter-acting force of a central shaft of a single roller, and then moment calculation is performed to a tire and the single roller at the tire center position, namely the tire rolling resistance can be calculated. The tire rolling resistance measurement is performed in the finished-automobile mode, the tire is not required to be disassembled, the influence of the outside environment and human factors is reduced, and the single-roller tire rolling resistance measuring method in the finished-automobile mode is simple in operation, easy to achieve and high in measurement accuracy.

Description

technical field [0001] The invention relates to a method for measuring the rolling resistance of tires, and provides a method for measuring the rolling resistance of tires with a single roller in the state of a complete vehicle. Background technique [0002] Tire rolling resistance testing machine mainly has two structures of drum type and flat belt type. The flat-belt testing machine is difficult to meet the rigidity and flatness requirements of the road surface under the high-speed motion state of the tire with a large load, and the test effect is not ideal. The drum structure has two structural forms: single drum and double drum. The research shows that the accurate tire rolling resistance test is suitable for large-diameter single drum. Most of the existing methods for measuring tire rolling resistance with a single roller are to remove the tire to be tested from the vehicle to be tested and then install it on a special test equipment to load it with a motor. This opera...

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Problems solved by technology

[0003] The invention provides a method for measuring tire rolling resistance without disassembly of a single roller, which can directly measure the rolling resistance of the tire in the state of the whole vehicle, and installing the sensor on the central axis of the single roller can be used to solve the problem of measuring the rolling resistance of the tire in the prior art Inaccurate time, low measurement efficiency, inconvenient measurement, and the defects affected by uncertain factors in the external environment, the method for measuring tire rolling resistance proposed in the present invention makes the measurement of tire rolling resistance have the advantages of simple operation and high measurement accuracy.

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