Automatic manual speed changer and speed change control mechanism thereof

Abstract

The invention relates to an automatic manual speed changer and a speed change control mechanism thereof. The speed change control mechanism of the automatic manual speed changer comprises N gear shift fork components, a rotation drum which can rotate around the longitudinal axis and forms an endless annular groove located around the peripheral face of the rotation drum, and N gear shift deflector rods with first ends and second ends, wherein the number N of the gear shift fork components is larger than or equal to 1, the groove comprises a linear segment which seems vertical to the longitudinal axis of the rotation drum when a person looks at an expanded view of the peripheral face of the rotation drum, and an S-shaped segment which is spliced with the linear segment and in S shape in the expanded view, the whole of the groove is the S-shaped segment when the N is equal to 1, the first ends of the gear shift deflector rods are connected with the side face of the groove in sliding mode, the second ends of each gear shift deflector rod is connected with a gear shift fork component in operation mode, the first ends of the N gear shift deflector rods are sequentially and independently connected with the S-shaped segment of the groove in sliding mode so as to enable the N gear shift deflector rods to sequentially swing back and forth and enable the second ends of the N gear shift deflector rods to drive the N gear shift fork components to move back and forth, and accordingly the automatic manual speed changer is enabled to sequentially obtain at most 2N gears for transmitting machinery force.

Description

technical field [0001] The invention generally relates to the field of transmissions of vehicles, in particular automatic manual transmissions (automatic mechanical transmissions, AMT). More particularly, the present invention relates to a shift operating mechanism for an automated manual transmission. Background technique [0002] The automatic manual transmission is an electronically controlled automatic shift transmission improved on the basis of the traditional gear-type manual transmission. The advantages of low cost, simple structure, reliable operation, and easy manufacture make it more cost-effective, and it is widely used in the field of vehicle transmissions. [0003] Figure 1A and 1B A typical conventional manual transmission is shown, which is a five-speed transmission with five forward gears 1-5 and one reverse R, including a manual shift lever 11 and a transmission housing 12 in which the There is a speed change transmission mechanism 13 and a speed change ...

AI Technical Summary

Problems solved by technology

However, the shifting mechanism in this design needs two actuators to respectively realize the above-mentioned "gear selection" and "shift" operations of the shift lever, and the structure is relatively complicated

In addition, the dual operations of "gear selection" and "shifting" need to be coordinated with each other, which also leads to the disadvantage of slow shifting speed

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