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

A braking energy recovery and energy recovery technology, applied in the control device, electric braking system, control drive and other directions, can solve problems such as vehicle slippage or tail drift, and achieve the effect of improving recovery efficiency and ensuring stability

Active Publication Date: 2022-02-11
CHINA FIRST AUTOMOBILE
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  • 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

Method used

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  • Braking energy recovery control method, system, device, vehicle and storage medium
  • Braking energy recovery control method, system, device, vehicle and storage medium
  • Braking energy recovery control method, system, 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, device, vehicle and storage medium. The method includes: in the braking energy recovery mode, determining the target braking torque of the vehicle according to the braking demand of the vehicle; The demand and the pressure building capacity of the hydraulic actuator determine the upper limit of the motor braking torque. 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 motor braking torque are greater than Or when it is equal to the target braking torque of the vehicle, determine the target braking torque of the vehicle as the motor braking torque, determine the front axle stability factor and the rear axle stability factor according to the slip rate of the vehicle, and send the front axle stability factor to the vehicle controller Stability Factor, Rear Axle Stability Factor, and Motor Braking Torque. The braking energy recovery control method can ensure the stability of the vehicle and improve the braking energy recovery efficiency.

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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Patent Type & Authority Patents(China)
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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