A Regenerative Braking Control Method Based on Prediction of Driver's Braking Behavior

A regenerative braking, driver technology, applied in the driver input parameters, control device, electric braking system, etc., can solve the problem of large difference in driving feeling, reduce frequency, improve braking safety, and improve recovery power Effect

Active Publication Date: 2022-02-11
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

There are also some electric vehicles with regenerative braking function. The regenerative braking control method adopted is to perform regenerative braking after the driver releases the accelerator. The energy recovery power of electric vehicles using this control method is significantly improved, but it must be maintained The speed of the vehicle must be stepped on the accelerator, and the driving feeling is quite different from that of traditional vehicles.

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  • A Regenerative Braking Control Method Based on Prediction of Driver's Braking Behavior
  • A Regenerative Braking Control Method Based on Prediction of Driver's Braking Behavior
  • A Regenerative Braking Control Method Based on Prediction of Driver's Braking Behavior

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Embodiment Construction

[0039] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0040] refer to figure 1 As shown, a kind of regenerative braking control method based on driver's braking behavior prediction of the present invention comprises the following steps:

[0041] (1) Real-time collection of brake pedal displacement and speed information, accelerator pedal displacement information, steering wheel angle information, road slope information, distance information L(t) between the vehicle and the obstacle directly in front, and real-time acquisition of vehicle speed information v(t), Battery SOC parameter value information;

[0042] The step (1) specifically includes: the displacement of the brake pedal is collected by a displacement sensor installed on the brake ped...

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Abstract

The invention discloses a regenerative braking control method based on the prediction of the driver's braking behavior. When the driver releases the accelerator pedal, firstly, according to the battery SOC parameter value information, steering wheel angle information, and road surface slope information, it is judged whether the regenerative braking motor It has the authority to brake in advance. If it has the authority, it can predict whether the driver has the intention to brake according to the distance information between the vehicle and the obstacle directly in front and the vehicle speed information, and based on this, it can control whether the regenerative braking motor brakes in advance. In addition, when the driver steps on the brake pedal, the driver's braking intention is predicted, and according to different prediction results, the braking force distribution method corresponding to the braking mode is switched. On the premise of ensuring that the driver's driving feeling is not affected, the invention can greatly increase the recovery power of braking energy, and at the same time shorten the braking distance and improve the braking safety.

Description

technical field [0001] The invention belongs to the field of regenerative braking control of electric vehicles, and specifically refers to a regenerative braking control method based on driver braking behavior prediction. Background technique [0002] When the driver drives a traditional vehicle to brake, it can be regarded as a closed-loop system composed of the driver, the vehicle and the vehicle's driving environment, and the driver is the controller of the closed-loop system. The environment is used to determine whether braking is required. When braking is required, the driver can send a braking signal to the vehicle through the brake pedal to control the vehicle to brake. [0003] The braking system of traditional vehicles is a hydraulic braking system. During the braking process, the driver steps on the brake pedal, and the hydraulic braking system generates frictional braking force to decelerate the vehicle; On the basis of the system, there is also a regenerative br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18B60W40/04B60W40/076B60W40/105B60W40/00B60L7/10
CPCB60W30/18127B60W40/04B60W40/076B60W40/105B60W40/00B60L7/10B60W2540/10B60W2540/18
Inventor 刘晓强王春燕王展吴刚张自宇刘利锋何鹏秦亚娟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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