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Dual-motor driving system and application

A dual-motor drive and power technology, applied in electric vehicles, control drives, electric power devices, etc., can solve the problems of high power of a single motor, affecting the cruising range, low motor efficiency, etc., to meet the requirements of driving comfort. The effect of improving the ride comfort and improving the efficiency

Active Publication Date: 2021-09-03
芜湖埃科泰克动力总成有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual application process, the motor is in the low-speed operating point in many cases, so the efficiency of the motor is relatively low, and most of the energy is wasted
And because the power of a single motor is large, the total weight is also large, which affects the cruising range

Method used

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Embodiment Construction

[0057] Reference will now be made in detail to exemplary embodiments of which are illustrated in the accompanying drawings. When the following description refers to reference numerals, unless otherwise indicated, the same reference numerals in different embodiments refer to the same or similar elements.

[0058] The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of structures consistent with aspects of the invention as recited in the appended claims.

[0059] The embodiment of the present invention provides a dual-motor drive system, the structure diagram of which is as follows figure 1 As shown, the system includes: a first motor 1, a second motor 2, a first input shaft 3, a second input shaft 4, a first output shaft 5, a second output shaft 6, a planetary mechanism 7, and a first driving gear 8. The second driving gear 9 and the first clutch 13 .

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Abstract

The invention discloses a dual-motor driving system and application, and belongs to the technical field of automobile speed change systems. The system is provided with two power sources, namely the first motor and the second motor, and can realize multiple modes such as a single-motor driving mode, a double-motor driving mode, a reversing mode and an energy recovery mode by applying the two power sources to automobile driving; when the load of the automobile system is a medium load or a low load in a starting accelerating or low-speed driving period, a single-motor driving mode is used; in the medium-speed and high-speed stages, when the load of the vehicle system is a high load, a dual-motor driving mode is used. The two modes utilize the characteristics of quick response, low-speed large torque and high-speed small torque of the motor, so that the high efficiency of power is improved. Wherein when double motors are used for driving in the medium-speed stage and the high-speed stage, the motors always work in a high-efficiency area by utilizing different speed ratios of two gears. And meanwhile, the energy recovery mode can recover mechanical energy generated during braking / sliding of the vehicle, and the energy utilization rate is increased.

Description

technical field [0001] The invention relates to the technical field of automobile drive, in particular to a dual-motor drive system and its application. Background technique [0002] At present, oil resources are increasingly scarce and air pollution continues to worsen due to vehicle exhaust emissions. Finding new energy sources to replace fuel-driven vehicles has become a major research direction at present. [0003] At present, electric vehicles, as a powerful competitive product of fuel vehicles, are developing very rapidly. Most of the driving systems of pure electric vehicles commonly used at present have a simple structure, and a single motor and a gearbox are simply integrated together. [0004] The inventor found that the pure electric vehicle in the prior art uses a single motor to have the following problems: [0005] When designing a single-motor system, considering that the car needs to cope with climbing and some complex road conditions, the selected motor po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/32B60K1/02B60K17/02B60K17/04
CPCB60L15/32B60K1/02B60K17/02B60K17/046
Inventor 张恒先周之光耿丽珍叶远龙田蕾
Owner 芜湖埃科泰克动力总成有限公司
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