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Pure electric drive system

A drive system, pure electric technology, applied in the direction of control drive, electric vehicles, electric power devices, etc., can solve problems such as unbalance, unable to place the center of gravity of high-power motors, etc., to avoid design difficulties, wide application range, and improve flexibility Effect

Inactive Publication Date: 2009-03-18
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pure electric drive system, which can effectively use energy while meeting the high power requirements of electric vehicles, and can properly deal with the problem that a high-power motor cannot be placed in the front cabin space of electric vehicles and due to Problems such as unbalanced center of gravity caused by high-power motor and gearbox connection

Method used

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Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below with reference to the drawings.

[0016] Such as figure 1 As shown, according to the present invention, a pure electric drive system is provided. The drive system mainly includes a battery pack 70, a gearbox 50, and a main drive motor. The battery pack 70 supplies power to the main drive motor. The box 50 inputs power, and the main driving motor includes a first main driving motor 20 and a second main driving motor 30. The drive system may also include a clutch 40, and the gearbox 50, the first main drive motor 20, the clutch 40, and the second main drive motor 30 are connected in sequence.

[0017] In other words, in figure 1 In the illustrated embodiment, the first main drive motor 20, the clutch 40, and the second main drive motor 30 are all arranged on the same side of the gearbox 50. The drive shaft of the first main drive motor 20 may be directly connected with the input shaft of th...

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Abstract

The invention provides a pure motor driving system which includes a battery pack, a gear box and a main drive motor; the battery pack supplies power to the main drive motor; the main drive motor inputs a power to the gear box; wherein, the main drive motor includes a first main drive motor and a second main drive motor. As the two main drive motors with relative lower power are adopted for replacing the existing main drive motor with a large power, therefore, the pure motor driving system can effectively solve the problems that the main drive motor with a large power can not be arranged as the space of a front cabin is not enough and is difficultly designed; devices with large power are difficultly designed and selected; the main drive motor with a large power affects the balance of the integral car, etc.

Description

Technical field [0001] The invention relates to a pure electric drive system. Background technique [0002] Due to the depletion of natural resources and the increasingly serious environmental pollution, electric vehicles have attracted more and more attention. Many manufacturers are now engaged in the research of electric vehicles, but their control and connection methods are basically the same. Most of the existing pure electric drive systems use a high-power drive motor to connect to the gearbox, and a controller controls the drive motor as the power source of the entire vehicle. However, there are many problems with this control method and connection method, such as the difficulty of designing high-power drive motors, the difficulty of selecting power devices for controllers, the inability to expand the space in the front compartment of electric vehicles, the unbalanced center of gravity of the vehicle, and low energy utilization efficiency. [0003] There are also some pure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/02B60K1/04B60K17/02B60L15/32
CPCY02T10/648Y02T10/646Y02T10/64
Inventor 王传福罗红斌周旭光陈伟齐阿喜汤小华杨广明祖波齐文明余波郁铭黄少锐俞明
Owner BYD CO LTD
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