Testing system for middle system in boosting bicycle

Abstract

The invention discloses a testing system for a middle system in a boosting bicycle. The testing system comprises an industrial personal computer and a testing system platform. The industrial personal computer is provided with Labview software. The testing system platform comprises a middle system installation base where the middle system is installed, a power system platform and a magnetic powder brake. A servo motor and a speed reducer are installed on the power system platform. The servo motor and the speed reducer are connected with a square sleeve through a torque rotating speed sensor, the square sleeve is connected with a middle shaft of the middle system, a chain wheel of the middle system is connected with a fluted disc through a chain, and the fluted disc is connected with the magnetic powder brake. A second torque rotating speed sensor is installed on the magnetic powder brake. The industrial personal computer is connected with the testing system platform and the middle system. According to the testing system, the testing efficiency of the middle system is improved, the performance of the middle system can be reflected on the whole, the testing structure is more accurate, and operation is easier.

Description

technical field [0001] The invention belongs to the testing field of a torque center system, and in particular relates to an automatic test system of a power assist bicycle center system. Background technique [0002] In recent years, power-assisted bicycles, especially lithium battery-assisted electric bicycles, have become more and more popular, especially bicycles equipped with a torque center system. The power-assisted bicycle system can automatically collect torque, cadence, bicycle speed, etc. The information is calculated by a specific algorithm, so as to control the output power of the motor, so that people can neither feel tired when riding, but also achieve the purpose of exercising. [0003] At present, many companies at home and abroad have developed mid-mounted systems. However, the torque acquisition methods of each company are different, and the accuracy is also different. However, the torque sensor in the mid-mounted system is particularly important. Each pa...

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Problems solved by technology

[0003] At present, many companies at home and abroad have developed mid-mounted systems, but the torque collection methods of each company are different, and the accuracy is also different. The torque sensor is particularly important. At present, the various parts of the mid-mounted system are usually tested separately at home and abroad. The motor is tested by a measuring and controlling machine and the curve is drawn. The torque sensor in the system generally adopts a static torque measurement method, that is, the mid-mounted system. The output crankset is fixed, use a torque wrench to pull the power output shaft-center shaft, apply torque, and compare the reading on the wrench with the output value of the torque sensor in the mid-mounted system to verify whether the torque sensor in the mid-mounted system meets the standard , this solution needs to apply torque artificially, the efficiency is low, and the human factors are large. It is not suitable for batch testing of mid-mounted motors, and separate tests cannot reflect the overall performance of the mid-mounted system. Therefore, a set that can test the mid-mounted system is urgently needed. Unified test system for automated testing of torque sensors

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