Dual motor drive system and its application

A dual-motor drive and power technology, applied in the control drive, electric vehicles, electric power devices, etc., can solve the problems of affecting the cruising range, high power of a single motor, low motor efficiency, etc. Requirements for comfort and the effect of improving efficiency

Active Publication Date: 2022-04-08
芜湖埃科泰克动力总成有限公司
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  • Summary
  • 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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  • Dual motor drive system and its application
  • Dual motor drive system and its application
  • Dual motor drive system and its application

Examples

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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 drive system and its application, belonging to the technical field of automobile transmission systems. The system has two power sources, the first motor and the second motor. By applying it to the driving of automobiles, various modes such as single-motor driving mode, dual-motor driving mode, reversing mode and energy recovery mode can be realized. In the acceleration and low-speed driving stages, when the load of the vehicle system is low to medium load, the single-motor drive mode is used; in the medium-speed and high-speed stages, when the load of the vehicle system is high, the dual-motor drive mode is used. The above two modes take advantage of the characteristics of fast motor response, high torque at low speed and low torque at high speed to improve power efficiency. Among them, when using dual-motor drive in the medium-speed and high-speed stages, the different speed ratios of the two gears are used to make the motor always work in the high-efficiency zone. At the same time, the energy recovery mode can recover the mechanical energy generated by the vehicle during braking / sliding to improve energy utilization.

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 Patents(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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