Novel automobile automatic transmission

Abstract

The invention discloses a novel automobile automatic transmission. The transmission comprises an engine rotating shaft, a reverse gear control shaft, a forward gear rotating shaft and a reverse gear rotating shaft; the reverse gear rotating shaft is movably connected with a reverse gear speed regulating gear through a reverse gear driven gear, the reverse gear speed regulating gear is arranged onthe reverse gear control shaft, the outer side of the reverse gear control shaft is further provided with a reverse gear controllable gear, the reverse gear controllable gear is movably connected witha first gear driving gear in a gear meshing mode, and the first gear driving gear is arranged on the engine rotating shaft. According to the novel automobile automatic transmission, in a reverse gearstate, a reverse gear controller controls a gear supporting column to enter a center shaft of the reverse gear controllable gear, so that the reverse gear controllable gear drives the reverse gear control shaft to rotate, then the reverse gear driven gear and the reverse gear rotating shaft are driven to rotate through the reverse gear speed regulating gear, so that an automobile enters a reversegear driving state; and the whole automatic transmission is reliable in operation and good in speed conversion linearity, meanwhile, the gear number is increased, the cost is low, the transmission efficiency is high, and the structure is simple.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions, in particular to a novel automatic transmission for automobiles. Background technique [0002] There are four common types of existing automotive transmissions: hydraulic automatic transmission (AT), mechanical continuously variable automatic transmission (CVT), electronically controlled mechanical automatic transmission (AMT), and dual clutch transmission (DSG). [0003] AT is composed of hydraulic torque converter, planetary gear and hydraulic control system, and realizes variable speed and torque through hydraulic transmission and gear combination. Among them, the hydraulic torque converter is the most important part. It is composed of pump wheel, turbine wheel and guide wheel, etc. It also has the function of transmitting torque and clutching. The shifting is frustrating, the transmission efficiency is low, the structure is complex, the reliability is poor, and the repair is ...

AI Technical Summary

Problems solved by technology

Among them, the hydraulic torque converter is the most important part. It is composed of pump wheel, turbine wheel and guide wheel, etc. It also has the function of transmitting torque and clutching. The shifting is frustrating, the transmission efficiency is low, the structure is complex, the reliability is poor, and the repair is difficult; compared with the AT, the CVT saves the complex and cumbersome gear combination transmission, but two sets of pulleys for transmission, through Change the contact radius between the driving wheel and the driven wheel belt to change the speed

Due to the cancellation of gear transmission, the transmission ratio can be changed at will, the speed change is smoother, and there is no sudden sense of gear shifting. The disadvantages are: complex structure, easy damage to the transmission belt, and small load; AMT and hydraulic automatic transmission (AT) same step automatic transmission

On the basis of the ordinary manual transmission, it replaces the separation and engagement of the clutch and the gear selection and shifting action of the transmission completed by manual operation by adding an electric device controlled by a microcomputer to realize automatic gear shifting. The disadvantages are: shifting There is a lot of frustration in gears, and the number of gears is not easy to be too many. When changing gears, the power needs to be cut off through the clutch, and the safety of the vehicle is poor; DSG gearboxes are divided into wet and dry types. The clutch is prone to heat during driving and stops

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