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Braking energy recovery control method, system and device, vehicle and storage medium

A technology of braking energy recovery and energy recovery, which is applied to control devices, electric braking systems, electric vehicles, etc., and can solve problems such as vehicle slippage or tail flicking

Active Publication Date: 2020-09-11
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a braking energy recovery control method, system, device, vehicle and storage medium to solve the technical problem that the current braking energy recovery method causes the vehicle to slip or flick and other unstable working conditions

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  • Braking energy recovery control method, system and device, vehicle and storage medium
  • Braking energy recovery control method, system and device, vehicle and storage medium
  • Braking energy recovery control method, system and device, vehicle and storage medium

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Embodiment Construction

[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0052] figure 1 It is a schematic flowchart of an embodiment of the braking energy recovery control method provided by the present invention. This embodiment is applicable to a scene where braking energy recovery is controlled during braking of an electric vehicle. This embodiment can be implemented by a braking energy recovery control device, which can be realized by software and / or hardware, and which can be integrated into a brake controller of the vehicle. Such as figure 1 As shown, the braking energy recov...

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Abstract

The invention discloses a braking energy recovery control method, system and device, a vehicle and a storage medium. The method comprises the following steps: in a braking energy recovery mode, the target braking torque of the whole vehicle is determined according to the braking requirement of the vehicle; according to the safety requirement and the pressure building capacity of the hydraulic actuator, a motor braking torque upper limit is determined; when it is determined that the sum of the available energy recovery torque of the front axle and the available energy recovery torque of the rear axle received from the vehicle controller and the upper limit of the braking torque of the motor are both larger than or equal to the target braking torque of the vehicle, the target braking torqueof the whole vehicle is determined as the motor braking torque, a front axle stability factor and a rear axle stability factor are determined according to the slip rate of the vehicle, and the front axle stability factor, the rear axle stability factor and the motor braking torque are sent to a whole vehicle controller. The braking energy recovery control method can ensure the stability of the vehicle and improve the recovery efficiency of the braking energy.

Description

technical field [0001] The embodiments of the present invention relate to the field of automobile control, and in particular to a braking energy recovery control method, system, device, vehicle and storage medium. Background technique [0002] With the gradual maturity of electric vehicle technology, more and more vehicles are equipped with pure electric systems. The form of single-axis drive motor can no longer meet the user's requirements for long-distance cruising range, and the form of dual-motor drive can provide users with more choices. One of the keys to the cruising range of pure electric vehicles is braking energy recovery technology. [0003] At present, the recoverable braking torque is determined according to the target braking torque of the whole vehicle, and then the braking energy is recovered according to the recoverable braking torque. [0004] However, in the above method of braking energy recovery, when the road surface adhesion coefficient is low, if th...

Claims

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Application Information

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IPC IPC(8): B60L7/10B60L15/20
CPCB60L7/10B60L15/2009B60L2240/12B60L2240/461Y02T10/72
Inventor 鲁兰官浩徐华林张立亮刘志鹏隋清海郝占武闫鲁平彭凯户俊营
Owner CHINA FIRST AUTOMOBILE
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