Shift control method and device for electric vehicle

An electric vehicle and shift control technology, applied in the field of vehicles, can solve the problems of difficult design and high development cost, and achieve the effect of convenient automatic switching and improving shift efficiency

Active Publication Date: 2019-07-26
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the design and development of this design is more difficult and the development cost is higher

Method used

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  • Shift control method and device for electric vehicle
  • Shift control method and device for electric vehicle
  • Shift control method and device for electric vehicle

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Embodiment Construction

[0063] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0064] Due to the increasing shortage of oil resources and the environmental pollution caused by vehicle exhaust emissions, new energy vehicles have become the focus of research by various vehicle manufacturers. Moreover, with the development of power batteries, electric vehicles in new energy vehicles have good development prospects. The electric vehicle can meet the basic travel needs of users such as commuting to work, going out for business, leisure and entertainment, etc., and has the advantages of low operating cost, zero emission, low noise and full use of valley power, and is favored by the majority of users. Optionally, the electric vehicle may be a pure electric vehicle.

[0065] An electric vehicle is generally provided with ...

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Abstract

The invention discloses a shift control method and device for an electric vehicle, and relates to the field of vehicles. According to the shift control method and device for the electric vehicle, whether the electric vehicle meets the shift condition or not can be judged according to the acquired driver demand power and the vehicle state information of the electric vehicle, and gears of a gearboxare adjusted if the shift condition is met. According to the shift control method of the electric vehicle, automatic switching of the gearbox of the electric vehicle between a plurality of gears can be conveniently realized, and the shift efficiency is improved.

Description

technical field [0001] The present application relates to the field of vehicles, in particular to a method and device for controlling shifting of electric vehicles. Background technique [0002] An electric vehicle generally includes a battery and a drive system. The drive system may include a motor and a single-speed ratio reducer. The output shaft of the motor is connected to the input shaft of the single-speed ratio reducer. The output shaft of the single-speed ratio reducer can be connected to the wheel connections. The battery can provide power for the motor to drive the motor to rotate, and the motor can then drive the single-speed ratio reducer to rotate, which in turn drives the wheels to rotate. [0003] With the rapid development of electric vehicles, users have higher and higher requirements for the power and endurance of electric vehicles. Usually, in order to improve the power performance of the electric vehicle, the motor of the electric vehicle can be operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/11B60W30/19B60W40/08B60W40/10B60W40/00
CPCB60W10/11B60W30/19B60W40/00B60W40/08B60W40/10
Inventor 孔令静林新峰王春丽肖小城薛斌梁长飞章友京盛亚楠夏天沙文瀚闫伟
Owner CHERY AUTOMOBILE CO LTD
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