Two-gear gear shifting mechanism, two-gear power system and gear shifting control method of two-gear power system

Abstract

The invention relates to a two-gear shifting mechanism, a two-gear power system and a gear shifting control method of the two-gear shifting mechanism. The two-gear shifting mechanism comprises a first clutch and a second clutch; the driving end of the first clutch and the driving end of the second clutch are arranged oppositely; a first reduction gear set and a second reduction gear set; the first reduction gear set is in transmission connection with the driven end of the first clutch, and the second reduction gear set is in transmission connection with the driven end of the second clutch. The driving end of each clutch is provided with three control positions on the motion stroke of the clutch motion, and the three control positions are a first combination position combined with the corresponding driven end, a second combination position combined with the driving end of the other clutch and a separation position located between the first combination position and the second combination position. When the gear shifting mechanism with the structure shifts gears, power interruption is avoided, and stable running of a vehicle is guaranteed.

Description

technical field [0001] The invention relates to a two-speed shift mechanism, a two-speed power system and a shift control method thereof. Background technique [0002] The two-speed shifting mechanism is used to transmit between the driving device (motor or a hybrid driving device composed of an engine and a motor) and the vehicle differential. The rotational speed and torque transmitted by the transmission make the driving device work in the high-efficiency area as much as possible, prolong the cruising range, and improve the economy of the vehicle under various working conditions. Among them, the large transmission ratio of the first gear of the two-speed gear shift mechanism can improve the acceleration and climbing ability, and the small transmission ratio of the other gear can increase the maximum speed and effectively improve the vehicle's dynamic performance. [0003] For example, the authorized announcement is CN102085795B, and the authorized announcement date is Ap...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a two-speed shifting mechanism to solve the problem that the two-speed shifting mechanism in the prior art cannot continuously transmit power when shifting gears; the purpose of the present invention is also to provide a two-speed power system to Solve the problem of power interruption when the two-speed power system is shifted in the prior art; the purpose of the present invention is also to provide a shift control method for the above-mentioned two-speed power system, so as to perform the shift operation without power interruption

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