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Brake control method, device and controller

A technology of hydraulic brakes and braking force, which is applied in the field of automobiles and can solve the problems that there is no relevant research on brake control

Active Publication Date: 2021-09-14
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] There is no relevant research on braking control of distributed drive vehicles including electric power braking system

Method used

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  • Brake control method, device and controller
  • Brake control method, device and controller
  • Brake control method, device and controller

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Embodiment Construction

[0074] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0075] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of t...

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Abstract

The present invention provides a braking control method, device and controller. The braking control method is applied to a distributed drive vehicle including an electric power-assisted braking system. Ability and rear axle electric braking recovery capability; determine the current braking mode according to the required braking force, front axle electric braking recovery capability, rear axle electric braking recovery capability, and preset front-rear axle braking force distribution constraints ; According to the braking mode and required braking force, the braking force is distributed to the front axle motor, rear axle motor, front axle hydraulic brake and rear axle hydraulic brake. In the embodiment of the present invention, the current braking mode is determined by obtaining the required braking force, the electric braking recovery capability of the front axle, and the electric braking recovery capability of the rear axle, combined with the preset front axle-rear axle braking force distribution constraints, and reasonably moving forward. Axis motor, rear axle motor, front axle hydraulic brake and rear axle hydraulic brake distribute braking force to achieve vehicle economy and consistency in deceleration process.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a braking control method, device and controller. Background technique [0002] According to the different layout forms of the power system, electric vehicles can be divided into two driving forms: centralized drive and distributed drive. The power of the centralized drive needs to go through the transmission, transmission shaft, differential, half shaft and other components to finally act on the wheels. It retains the compatibility between electric vehicles and traditional fuel vehicles to the greatest extent. Therefore, major domestic and foreign OEMs have launched The models of all models adopt a centralized drive form. However, the shortcomings of the centralized drive form, such as many transmission parts, low transmission efficiency, and complicated control, are gradually appearing, while the distributed drive form cancels these transmission components and installs the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/26B60T8/17B60L7/18
CPCB60L7/18B60T8/17B60T8/26
Inventor 王艳静谢明维易迪华梁海强代康伟
Owner BEIJING ELECTRIC VEHICLE
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