Two-channel gear-shift transmission separating gearbox and control method thereof

Abstract

The invention relates to the technical field of gearboxes, particularly to a two-channel gear-shift transmission separating gearbox. The two-channel gear-shift transmission separating gearbox is provided with a two-channel transmission speed change mechanism, and separation of a transmission channel and a gear-shift channel is realized through a planet gear mechanism among the gearbox, an input shaft and an output shaft. The gearbox has the following advantages: a clutch and a synchronizer are not needed during the gear-shift process, the gear-shift process has the characteristics of steady and coherent impetus, and the energy utilization ratio is greatly increased by arranging a motor on the two channels of the transmission speed change mechanism.

Description

technical field [0001] The invention relates to the technical field of gearboxes, in particular to a dual-channel shifting transmission separation gearbox and a control method thereof. Background technique [0002] Most of the existing gearboxes use multiple groups of gear sets with different speed ratios to form multiple gears. During operation, different gears are selected and changed according to actual needs to achieve different gear ratios. Although this type of gearbox is simple in structure, it also has the following disadvantages: [0003] 1. Due to the large difference in the speed of the gears in each gear, in order to avoid the phenomenon of gear hitting when shifting gears, it is necessary to install a synchronizer on each gear, which increases the size and cost. [0004] 2. When shifting gears, you need to step on the clutch first (although automatic transmission does not need to step on the clutch manually, in fact, a torque converter is still needed inside th...

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Problems solved by technology

[0003] 1. Due to the large difference in the speed of the gears on each gear, in order to avoid the phenomenon of tooth beating when shifting gears, it is necessary to install a synchronizer on each gear, which increases the volume and cost

[0004] 2. When shifting gears, you need to step on the clutch first (although automatic transmission does not need to step on the clutch manually, in fact, a torque converter is still needed inside the gearbox to disconnect the power from the gearbox to change gears) to disconnect the power Only after the gearbox can be controlled to shift gears, this not only adds an operation action, but also causes safety hazards due to temporary loss of driving force during the period from depressing the clutch to releasing the clutch after the end of the shift.

[0005] 3. When shifting gears, there is a serious problem of frustration

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