Double-overrunning clutch mechanical type shaft sleeve output self-adaptive automatic speed changing electric driving system

Abstract

The invention discloses a double-overrunning clutch mechanical type shaft sleeve output self-adaptive automatic speed changing electric driving system. The double-overrunning clutch mechanical type shaft sleeve output self-adaptive automatic speed changing electric driving system comprises a spindle and a speed changing system on the spindle. The speed changing system comprises a low gear transmission mechanism, a reverse gear transmission mechanism and a self-adaptive speed changing assembly. The reverse gear transmission mechanism has first transmission ratio by which reverse gear power is transferred from a countershaft to the spindle. The low gear transmission mechanism has second transmission ratio by which low gear power is transferred from the countershaft to the spindle. First transmission ratio is larger than or equal to second transmission ratio. According to the double-overrunning clutch mechanical type shaft sleeve output self-adaptive automatic speed changing electric driving system, reasonable cooperation of two overrunning clutches is utilized, and transmission ratio is reasonably arranged for the reverse gear mechanism and the low gear mechanism so that the integralstructure is simple and compact; reverse gear transmission shares transmission routes with low gear and fast gear transmission, and no interference occurs; the integral property of the mechanical type self-adaptive automatic gearbox is guaranteed; the adaptive capacity is relatively high; cooperation with a self-adaptive automatic speed changing mechanism is smooth and natural; the manufacturingcost is lowered; transmission stability is guaranteed; and the system is both applicable to the field of electric cars and applicable to other torque-changeable mechanical transmission fields.

Description

technical field [0001] The invention relates to a motor vehicle transmission, in particular to a dual overrunning clutch mechanical shaft sleeve output self-adaptive automatic variable speed electric drive system. Background technique [0002] The working conditions of mechanical transmission systems are generally complex, and torque needs to be distributed to realize the transmission of different loads and speeds. Taking electric vehicles as an example, the driving environment is complex and changeable. Moreover, the electric drive method commonly used in existing electric vehicles is a motor-driven fixed-speed ratio, and the reasonable range of high efficiency is narrow and limited, resulting in a vicious circle, resulting in the following problems: [0003] 1. It can only work within the torque range of a certain working condition. [0004] 2. In order to meet the road conditions under the condition of constant speed ratio, the speed of the motor can only be increased, w...

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Problems solved by technology

[0014] In view of this, the object of the present invention is to provide a dual-overrunning clutch mechanical shaft sleeve output self-adaptive automatic variable-speed electric drive system, adding a reverse gear transmission mechanism with strong adaptability, the device can not only adapt to changes in driving resistance without cutting off Under the condition of driving force, it can automatically shift gears and change gears, and can solve the problem of high-efficiency road forward and reverse driving under complex conditions under two-way driving conditions, and the setting is simple and compact, and the cam adaptive automatic transmission mechanism Cooperate smoothly and naturally, reduce manufacturing cost and ensure the stability of transmission

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