Crawling control method for electric vehicle

A control method and electric vehicle technology, applied in the direction of electric vehicles, control drives, control devices, etc., can solve the problems of user experience deviation, complex environment and insufficient applicability of user differentiated needs, and achieve simple control ideas and improve applicable scenarios Scope, the effect of improving user experience

Active Publication Date: 2021-09-28
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low-speed creep can obtain stable low-speed driving without the need for the user to control the accelerator pedal or brake pedal, so it can be used in situations that require stable low-speed driving such as car following, climbing, and parking. Currently, the creep function of pure electric vehicles is only good. The uniform speed driving control of the road environment is not suitable for complex environments and user differentiated needs, and the user experience is biased

Method used

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  • Crawling control method for electric vehicle

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Embodiment Construction

[0040] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is illustrative only, and in no way restricts the disclosure, its application or uses. The present disclosure can be implemented in many different forms and is not limited to the embodiments described here. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as illustrative only and not as limiting, unless specifically stated otherwise.

[0041] "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distin...

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Abstract

The invention discloses a crawling control method for an electric vehicle. The method comprises the following steps: setting configurable parameters of a crawling mode; judging whether the vehicle meets a crawling mode entering condition or not; when the vehicle meets the crawling mode entering condition, calculating, by the vehicle control unit, a motor rotating speed limit value and a motor torque limit value according to configurable parameters of the crawling mode; controlling, by the motor controller, the motor to operate at a constant rotating speed; monitoring, by the vehicle control unit, the vehicle state and user operation; and when the vehicle state and the user operation meet the crawling mode exit condition, exiting crawling control. According to the crawling control method for the electric vehicle, the control thought is simple, the user definition degree is improved, the application scene range is widened, so that the problem that the crawling function of a current electric vehicle is good in common city road effect but cannot normally creep on a large-gradient road surface and a muddy bumpy road surface is effectively solved, more personalized settings are provided for the user, and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a creep control method for electric vehicles. Background technique [0002] One type of scene used by electric vehicles is low-speed creeping. The creeping state of the vehicle refers to the state where the vehicle is running stably at a certain speed when the accelerator pedal and the brake pedal are not depressed when the vehicle is running at a low speed. Low-speed creep can obtain stable low-speed driving without the need for the user to control the accelerator pedal or brake pedal, so it can be used in situations that require stable low-speed driving such as car following, climbing, and parking. Currently, the creep function of pure electric vehicles is only good. The constant-speed driving control in the road environment is not suitable for complex environments and differentiated user needs, and the user experience is deviated. [0003] Therefore, there is an urg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60L15/20
CPCB60W30/18063B60L15/2063B60L2240/421B60W2710/081Y02T10/72
Inventor 王文科张驰黄子
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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