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Control method and device of electric power-assisted braking system and controller

A technology of braking system and control method, applied in the direction of electric braking system, control device, braking transmission device, etc., can solve the problem that the vehicle cannot meet the NVH requirements, and achieve the effect of reducing unnecessary work and reducing noise

Active Publication Date: 2020-09-01
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to achieve partial decoupling and complete decoupling between the brake pedal and the master cylinder, the electric power-assisted braking system is equipped with an accumulator as a coordinating device for the brake fluid, but the accumulator will have a certain amount of work when it is working Noise, making the vehicle unable to meet NVH requirements

Method used

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  • Control method and device of electric power-assisted braking system and controller
  • Control method and device of electric power-assisted braking system and controller

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Embodiment Construction

[0030] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help comprehensively understand the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for clarity and conciseness, descriptions of known functions and configurations are omitted.

[0031] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment o...

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PUM

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Abstract

The invention provides a control method and device of an electric power-assisted braking system and a controller, which relate to the technical field of automobiles. According to the embodiment of theinvention, the method comprises the steps that through acquiring real-time working parameters of a vehicle, the current working state of the vehicle is determined, and a control signal carrying an enable flag bit is sent to an energy accumulator according to the working state and a control instruction carrying the target pressure intensity of the braking master cylinder; when the vehicle is in anenergy recovery state, a control signal enabling the energy accumulator to work is sent, and when the vehicle is not in the energy recovery state, a control signal enabling the energy accumulator notto respond is sent, so that the energy accumulator only works in the energy recovery state, unnecessary work of the energy accumulator is reduced, and noise generated by work of the energy accumulator is lowered.

Description

Technical field [0001] The invention relates to the technical field of automobiles, and in particular to a control method, device and controller of an electric booster braking system. Background technique [0002] The development trend of intelligence and electrification has put forward higher requirements and challenges for the braking system, and the electric power-assisted braking system is undoubtedly the best choice. The electric power-assisted braking system can adjust the control parameters to change the power-assistance to obtain different pedal feelings. The electric power-assisted braking system can achieve partial decoupling and complete decoupling between the brake pedal and the master cylinder, so hydraulic braking and regenerative braking can work in coordination (that is, tandem braking energy recovery or coordinated distribution braking Energy recovery), which not only ensures the economy of brake recovery, but also maintains the comfort of a consistent pedal fee...

Claims

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Application Information

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IPC IPC(8): B60T13/74B60L7/10
CPCB60L7/10B60L2240/12B60L2240/423B60L2240/486B60L2250/26B60T13/745
Inventor 王艳静谢明维易迪华梁海强代康伟
Owner BEIJING ELECTRIC VEHICLE
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