Control Method of Automobile Regenerative Braking Control System Based on Electronic Hydraulic Braking

Abstract

The invention relates to a control method of an automobile regenerative braking control system based on electronic hydraulic braking, comprising an electronic hydraulic braking mechanism, an accelerator pedal sensor, a wheel speed sensor, a brake pedal depth sensor, a wheel side motor and an electronic control unit. The advantage of the present invention is that the system can judge the braking demand of each wheel of the vehicle by collecting brake pedal depth signals, wheel speed signals, and accelerator pedal depth signals. After judging the feedback capability of each wheel motor, the braking demand is divided into two parts: regenerative braking and electronic hydraulic braking. Adjust the brake fluid pressure of each wheel to achieve the synergistic braking effect of regenerative feedback and hydraulic pressure, maximize the use of the feedback capability of the electronic control system, and improve the energy economy of the vehicle.

Description

technical field [0001] The invention belongs to the technical field of automobile braking systems, and in particular relates to a control method for an automobile regenerative braking control system based on electronic hydraulic braking. Background technique [0002] With the rapid development of artificial intelligence technology innovation, the intelligent driving system is also developing rapidly. Among them, the intelligent assisted driving system is regarded as an important evaluation indicator for vehicle safety by various vehicle safety evaluation agencies. At present, L1 and L2 level intelligent driving systems still stay at the "assistance" level, that is, the driver needs to participate in the whole process of driving. Therefore, compared with the more advanced L3, L4, and L5 level intelligent driving systems, since the system can Instead of the driver participating in the whole process of automatic driving, if the automatic driving function needs to be maintained ...

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Problems solved by technology

[0005] The regenerative braking strategy proposed by Meng Zewen et al. in "Research on Regenerative Braking Control Strategy of Rear-drive Pure Electric Vehicles [J]. It also improves the braking energy recovery rate, but it may not make full use of the road surface adhesion conditions, and it has not considered the main actuator in the regenerative braking cooperative control system - the wheel motor's performance under different braking demand torques. The change of the braking energy recovery torque provided, only using the braking strength as the criterion for the distribution of the front and rear braking force will also affect the braking comfort to a certain extent

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