Braking system for high-speed railway train set

A technology for braking systems and EMUs, applied in electric braking systems, brakes, electric vehicles, etc., can solve the problems of large motor braking torque fluctuations and difficult commutation of inverter feedback devices, and achieve optimal braking control. , to achieve the effect of electric energy recovery and increase comfort

Active Publication Date: 2018-07-03
NANTONG SHUGUANG ELECTROMECHINCAL ENG
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AI Technical Summary

Problems solved by technology

However, when the train is at low speed, due to the decrease of the electromotive force of the motor, the commut...

Method used

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  • Braking system for high-speed railway train set
  • Braking system for high-speed railway train set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] A braking system for a high-speed rail EMU, including a brake controller, a composite electric brake control actuator and an air brake control actuator, such as figure 1 .

[0027] The brake controller is installed in each motor car, and receives the brake level command issued by the driver, weather information, train load information and speed information, and calculates and distributes the braking force; specifically: according to the pre-stored deceleration - The speed curve and the adhesion coefficient-speed curve are determined by the test, calculate the required braking force and the maximum adhesion force, and ensure that the calculated braking force is less than the maximum adhesion force, and distribute the electric braking force according to the principle of electric braking priority. When the braking force is insufficient, the remaining calculated braking force is allocated to the air brake, and the air braking force is allocated to the braking device of the ...

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Abstract

The invention provides a braking system for a high-speed railway train set. The braking system comprises a braking controller, a composite electric braking control executing device and an air brakingcontrol executing device. A braking controller receives a braking-level instruction, weather information, train load information and train speed information which are sent out by a driver, and brakingforce calculation and distribution are conducted; and the composite electric braking control executing device selects and controls the braking modes including regenerative braking and energy consumption braking, and electric braking force is generated through an inversion device with the braking function and a motor. According to the braking system for the high-speed railway train set, braking control of the high-speed railway train set is optimized, the positive effects in multiple aspects that electric energy is recycled, comfort during train braking is improved, the braking time and the braking distance are reduced to the largest extent so as to facilitate maintenance of a foundation braking device are achieved, and the potential application and popularization value is achieved.

Description

technical field [0001] The invention relates to a braking system of a high-speed train train. Background technique [0002] High-speed rail EMUs use traction motors as power, and their brake systems use composite brakes consisting of motor electric brakes and air brakes. The braking control unit calculates and generates the braking force according to the braking level, speed information and load information, and distributes the braking force according to the principle of motor electric braking priority, so as to reduce the wear of the brake disc and brake pads in the braking basic device. [0003] Usually at medium and high speeds, electric motor brakes and air brakes are mainly used as supplements; when the speed is lower than 30km / h, the motor electric brakes are cut off and air brakes are used. During the entire braking process, especially in the switching process of electric motor electric braking and air braking at low speed, try to keep the total braking force unchang...

Claims

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Application Information

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IPC IPC(8): B60T13/24B60T13/58B60T13/66B60L7/26
CPCB60L7/26B60T13/24B60T13/58B60T13/665B60T2270/60
Inventor 赵桂锋崔有祥闵春华郭颖颜开红赵建军邓爱玲刘彬王嫣杨海龙张荣
Owner NANTONG SHUGUANG ELECTROMECHINCAL ENG
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