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Dual-motor three-mode multi-gear three-shaft gearbox

A gearbox and dual-motor technology, applied in the field of vehicle transmission, can solve problems such as poor economy and low gearbox efficiency, and achieve the effects of low production cost, high gear mechanism reuse rate, and reduced axial size

Active Publication Date: 2021-09-24
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the drive system of most electric vehicles uses a gearbox with a single motor and a fixed speed ratio. Although this power system has low manufacturing cost, simple structure, and simple control, considering that the vehicle may run under various working conditions, Therefore, the efficiency of the single-motor gearbox is relatively low, and the economy is poor

Method used

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  • Dual-motor three-mode multi-gear three-shaft gearbox

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Embodiment Construction

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

[0042] It should be noted that in the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "one side", "another side", "left", " The orientation or positional relationship indicated by "right", 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, and does not mean that the device or element must have a specific orientation, b...

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Abstract

The invention relates to a double-motor three-mode multi-gear three-shaft type gearbox which comprises a first motor, a second motor, an output end and a gearbox module. The gearbox module is composed of eight gears and three synchronizers, six speed ratios are provided through reasonable utilization of gear pairs on the basis of using as few gears as possible, each speed ratio comprises a low-load mode, a medium-load mode and a high-load mode, and non-power-interruption switching under all gears and all modes can be achieved. Through reasonable arrangement of the gears and the synchronizers, the gearbox is compact in structure, the reuse rate of a gear mechanism is improved, and the design requirements for multiple gears, light weight, compactness and suitability for various working conditions of the gearbox of the electric vehicle can be met.

Description

technical field [0001] The invention relates to the technical field of vehicle transmission, in particular to a dual-motor, three-mode, multi-speed, three-shaft gearbox. Background technique [0002] Energy saving and emission reduction has become the main direction of today's automotive industry design. Out of consideration for the environment and energy security issues, China, the United States, Japan and some European countries plan to gradually replace fuel vehicles with electric vehicles. At present, the driving system of most electric vehicles uses a gearbox with a single motor and a fixed speed ratio. Although this power system has low manufacturing cost, simple structure and simple control, considering that the vehicle may run under various working conditions, Therefore, the efficiency of the single-motor gearbox is relatively low, and the economy is poor. The dual-motor multi-gear gearbox can effectively solve the above problems. It can perform shifting operations...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/08B60K1/02
CPCB60K17/08B60K1/02
Inventor 李学良王衍荣吴志航杨树军王文锋
Owner YANSHAN UNIV
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