A dual-drive source and double-row planetary gear train multi-mode coupling drive system and vehicle
A double-row planetary wheel and coupled drive technology, which is applied to the layout of multiple prime movers of general power plants, motor vehicles, hybrid vehicles, etc., can solve the problems of insufficiently compact structure, insufficiently compact volume, and many actuators, etc. , to achieve the effect of compact structure, reducing control difficulty and improving overall efficiency
Active Publication Date: 2022-06-03
XI AN JIAOTONG UNIV
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Problems solved by technology
The disadvantage of this solution is that there are many actuators; the two motors are arranged in parallel, and the structure is not compact enough.
[0005] To sum up, in the existing technical solutions, in order to realize the three drive modes of single-motor drive, speed coupling and torque coupling in the drive system, at least three actuators (clutches or brakes) need to be controlled; and in the speed coupling mode, The two motors are usually connected to the sun gear and the ring gear of the planetary gear respectively. In order to reduce the performance requirements of the motor, the motor connected to the ring gear needs to be decelerated by a first stage before being connected to the ring gear, resulting in a system that is not compact enough
Method used
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Embodiment 1
[0032] The first row of planetary gear mechanism includes a first planet carrier 3, a first planetary gear 6 and a first sun gear 13. said
[0042] The working states of the above three different working modes and parts are shown in Table 1.
[0044]
Embodiment 2
[0047] The first row planetary gear mechanism includes a first planet carrier 3, a planetary gear 6 and a first sun gear 14. The second
[0049] This embodiment can implement the same function as that of Embodiment 1, which will not be repeated here.
Embodiment 3
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The present invention relates to a drive transmission system of an automobile, in particular to a multi-mode coupling drive system for an automobile with dual drive sources and double-row planetary gear trains, including a main drive source and an auxiliary drive source; the first row of planetary gear mechanism includes a first planet carrier , the first planetary gear and the first sun gear, the second planetary gear mechanism includes the second planet carrier, the second planetary gear and the second sun gear, the first row planetary gear mechanism and the second row planetary gear mechanism share the ring gear, The first sun gear and the second sun gear are connected through an overrunning clutch; the first brake is used to brake the ring gear, and the second brake is used to brake the second planet carrier; the first planet of the first row of planetary gear mechanism The frame is the output end of the power. The invention has the characteristics of compact structure and simple control, and has multiple working modes. The working mode is selected according to the change of road conditions, so that the two motors always work in the high-efficiency range, improves the efficiency of the drive system, and prolongs the driving range of the electric vehicle.
Description
A dual-drive source and dual-row planetary gear train multi-mode coupling drive system and vehicle technical field The present invention relates to the drive transmission system of electric vehicle, be specifically related to a kind of double drive source for automobile and double row planetary Gear train multi-mode coupled drive system. Background technique At present, the drive system of electric vehicles is usually composed of a motor and a 1-speed or 2-speed transmission. The driving performance requirements under different working conditions require higher torque and power capacity of the motor, while large-capacity motors are used in light-load work. In this case, the efficiency is low, which is 20% to 30% different from its maximum efficiency. [0003] The Chinese patent with application number of 201310633682.5 discloses a dual-motor coupling drive system for an electric vehicle, It consists of two drive motors, three clutches, a lock, a row of planetary gear...
Claims
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IPC IPC(8): B60K6/547B60K6/38B60K6/26B60K6/24
CPCB60K6/547B60K6/38B60K6/26B60K6/24B60K2006/381Y02T10/62
Inventor 赵升吨杜威郑臻皓高景洲
Owner XI AN JIAOTONG UNIV