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Electric vehicle sliding control method, storage medium and system

A technology for electric vehicles and control methods, which is applied in electric vehicles, electric braking systems, brakes, etc., and can solve the problem that deceleration cannot meet deceleration requirements.

Pending Publication Date: 2021-04-30
EVERGRANDE NEW ENERGY AUTOMOTIVE INVESTMENT HLDG GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application aims to provide a sliding control method, storage medium and system for an electric vehicle, which is used to solve the technical problem in the prior art that the deceleration cannot meet the deceleration requirement during the coasting braking process

Method used

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  • Electric vehicle sliding control method, storage medium and system
  • Electric vehicle sliding control method, storage medium and system
  • Electric vehicle sliding control method, storage medium and system

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Embodiment Construction

[0044] Embodiments of the present application will be further described below in conjunction with the accompanying drawings. In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the simplified description of the present application, rather than indicating or implying that the referred device or component must have a specific orientation, or in a specific orientation construction and operation, therefore should not be construed as limiting the application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. Wherein, the terms "first position" and "second position" are two diff...

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Abstract

The invention provides an electric vehicle sliding control method and system, and a storage medium, and the method comprises the steps: responding to a driving state signal that a vehicle enters a sliding condition, and obtaining a preset sliding recovery level and the current driving speed of the vehicle; determining a target deceleration of the automobile according to the current driving speed and a preset sliding recovery grade; obtaining a target braking force of the automobile according to the current driving speed and the target deceleration; distributing the target braking force into target electric braking force and target hydraulic braking force; and obtaining the actual deceleration of the automobile under the target braking force, and compensating the target braking force according to the actual deceleration and the target deceleration to obtain the compensated target braking force. According to the method, the closed-loop control scheme with the target deceleration as the control target under the sliding working condition of the vehicle is achieved, and the deceleration of the vehicle can reach the real target deceleration.

Description

technical field [0001] The present application belongs to the technical field of new energy vehicles, and in particular relates to a sliding control method, storage medium and system of an electric vehicle. Background technique [0002] Electric vehicles can recover energy through motor braking when the vehicle is coasting, thereby increasing the cruising range and reducing energy consumption, which is an advantage over fuel vehicles. On the other hand, when the driver releases the accelerator for coasting and deceleration, electric vehicles on the market basically decelerate by allowing the drive motor to recover torque in the medium and high speed ranges, thereby realizing energy recovery. The recuperation torque executed by the drive motor is generally calculated based on the current actual vehicle speed, the coasting recuperation intensity set by the driver, and the slope of the slope when driving to obtain a recuperation torque that can be executed by the drive motor to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/18B60T13/74
CPCB60L7/18B60T13/74B60T13/745
Inventor 吴康
Owner EVERGRANDE NEW ENERGY AUTOMOTIVE INVESTMENT HLDG GRP CO LTD
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