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Speed reducer, driving system of electric automobile and electric automobile

A drive system and reducer technology, applied in the field of electric vehicles, can solve the problem that the engine and generator cannot directly drive the vehicle, achieve the effect of enriching the use function, shortening the number of paths and conversions, and improving the power of the vehicle

Pending Publication Date: 2020-04-03
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application provides a speed reducer, a driving system of an electric vehicle and an electric vehicle, which can solve the problem that the engine and the generator in the existing series-extended range electric vehicle cannot directly drive the vehicle, thereby improving the power, economy and performance of the whole vehicle. maneuverability

Method used

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  • Speed reducer, driving system of electric automobile and electric automobile
  • Speed reducer, driving system of electric automobile and electric automobile
  • Speed reducer, driving system of electric automobile and electric automobile

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Embodiment Construction

[0059] In order to make the technical solutions and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings. Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those skilled in the art.

[0060] As the earth's environment continues to be harsh, people's desire for electric vehicles is getting stronger and stronger. Pure electric vehicles have the characteristics of zero emission, zero pollution, high efficiency and no dependence on petroleum. However, because the energy density and mileage of batteries required by electric vehicles at this stage cannot meet people's requirements, they cannot compete with traditional internal combustion engines. However, the extended-range electric vehicle, as an electric vehicle that can increase the mileage and has th...

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Abstract

The invention provides a speed reducer, a driving system of an electric automobile and the electric automobile. The speed reducer comprises a motor input shaft, an engine input shaft, an intermediateshaft, a first output shaft, a second output shaft and a differential mechanism, and the first output shaft and the second output shaft are in transmission connection with the differential mechanism.The speed reducer further comprises a first transmission assembly used for communicating power transmission between the motor input shaft and the intermediate shaft; a second transmission assembly used for connecting or disconnecting power transmission between the engine input shaft and the intermediate shaft; and a third transmission assembly used for connecting or disconnecting power transmission between the intermediate shaft and the differential mechanism. The speed reducer provided by the invention can solve the problem that an engine and a generator in an existing series extended-range electric vehicle cannot directly drive the vehicle, so that the dynamic property, the economy and the controllability of the whole vehicle are improved.

Description

technical field [0001] The present application relates to the technical field of electric vehicles, in particular to a speed reducer, a driving system of the electric vehicle and the electric vehicle. Background technique [0002] A pure electric vehicle (battery electric vehicle) is a vehicle powered entirely by a rechargeable battery. At this stage, pure electric vehicles still generally have problems such as short driving range, long charging time, heavy battery weight and high cost, and the extended-range electric vehicle can solve these problems existing in pure electric vehicles. When using the pure electric drive mode, when the power battery on the car is low, it will switch to the extended-range drive mode. Therefore, the extended-range electric vehicle is one of the mainstream solutions for new energy vehicles on the market. [0003] The usual range-extended electric vehicle adopts a series drive scheme, that is, the engine and the generator cannot directly drive t...

Claims

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Application Information

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IPC IPC(8): B60K6/36B60K6/442B60K6/50
CPCB60K6/36B60K6/442B60K6/50B60K17/356B60K6/387B60K6/46B60K6/52B60K6/448B60K1/02B60K2001/001Y02T10/62B60Y2200/92B60Y2400/79B60Y2400/80B60K6/547
Inventor 郑益红刘峰宇
Owner HUAWEI TECH CO LTD
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