Variable-speed driving system with multiple driving motors and gear shifting control method of variable-speed driving system

A variable-speed drive and drive motor technology, which is applied in transmission control, multi-ratio transmissions, motors, etc., can solve the problems of power interruption in shifting, weak drive capability, and increased cost, and achieve increased power and torque density and reduced Weight, the effect of solving power interruption

CN113027998AActive Publication Date: 2021-06-25SUZHOU KAIBO YIKONG DRIVE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-06-25

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Abstract

The invention relates to a variable-speed driving system with multiple driving motors. The variable-speed driving system is characterized by comprising a first driving motor (1), a second driving motor (2), a third driving motor (3), a first input shaft (4), a second input shaft (5), a power output shaft (6) and a power take-off shaft (13). The variable-speed driving system aims at heavy trucks such as dump trucks, towing vehicles, mine trucks and the like with severe and complex operation conditions, and through cooperative work of the multiple motors, the problem of power interruption in the gear shifting process is thoroughly solved, and the reliability of gear shifting under the severe working condition is guaranteed; through a multi-motor working scheme, when the power needs to be increased in the later period, the multiple motors can be increased at the same time, and the technical difficulty and the cost increasing amplitude are reduced; and the double motors are coupled on an intermediate shaft after input, intermediate shaft gears are reused at the same time, and multiple gears are achieved through fewer gears.
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Description

technical field

[0001] The invention relates to the technical field of motor drive systems, in particular to a multi-drive motor variable speed drive system and a shift control method thereof. Background technique

[0002] With the rapid development of the new energy vehicle industry, pure electric drive systems are more and more widely used in the field of commercial vehicles. At present, the multi-speed pure electric drive systems in commercial vehicles mostly use "single drive motor + AMT gearbox" and "drive motor + The drive form of "AMT gearbox + direct drive motor", in which the scheme of "single drive motor + AMT gearbox" has the problem of interruption of gear shifting power, and it is difficult to shift gears under heavy load climbing conditions; while "drive motor + AMT gear shifting" In the drive form of box + direct drive motor, only the direct drive motor outputs power during shifting, and the driving ability is weak, and there is still the problem of difficulty...

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that ...