Oil filling system and method for transmission

Abstract

The invention discloses an oil filling system and method for a transmission. The oil filling system comprises an oil storage tank used for storing transmission oil, oil filling branches connected in parallel, and an oil pump used for conveying the transmission oil from the oil storage tank to the oil filling branches. Each oil filling branch comprises an oil filling control valve and a flow meter which communicate with each other in sequence. The oil filling branches communicate with oil filling ports of the transmission through oil filling guns correspondingly. The oil filling system further comprises a controller and oil level sensors. The oil level sensors are arranged on the oil filling guns. The controller is electrically connected with the oil level sensors, the flower meters and the oil filling control valves. The oil filling ports are further connected with an oil outlet branch communicating with the oil storage tank. By means of the oil filling system and method for the transmission, the reworked transmission does not need to be weighed, the oil filling process of the transmission can be completed on one work station, and accurate oil filling can be realized for the newly assembled and reworked transmission.

Description

technical field [0001] The invention belongs to the field of transmission tooling, in particular to a transmission oil filling system and method. Background technique [0002] The existing transmission oil injection control adopts the method of quantitative oil injection. When the system detects that there is a new transmission that needs oil injection, the control unit controls the oil pump to pump the transmission oil from the oil storage tank to the flow meter. The flow meter is set to require oil injection. The transmission oil is filled into the transmission through the oil injection pipe, and when a certain amount is filled, the control unit stops the oil pump. Under normal circumstances, this method is only suitable for new transmission oil filling. However, there are several situations to consider in actual production: [0003] 1. When refilling the reworked transmission, this method cannot directly determine the amount of transmission oil that needs to be injected...

AI Technical Summary

Problems solved by technology

[0005] The traditional technology needs 3 stations to solve the oiling problem of the transmission. When oiling the reworked transmission, the difference in the weight of the transmission is ignored, which will have a negative impact on the accuracy of the oiling (≥50g), especially for the oiling of MT and DCT transmissions. If the amount is small, the accuracy of oil injection will be further reduced; the measurement accuracy of the other two weighing stations is high, and it is necessary to communicate and manage the measured data in the whole line; the newly added weighing detection station, It is necessary to calibrate the sensor frequently, which adds a certain amount of workload to production management

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