Emergency braking signal generation device for high-speed train based on orthogonal collocation optimization

A signal generating device and orthogonal configuration technology, which is applied in the field of rail traffic safety and can solve the problems of complete destruction of the first carriage and the second carriage.

Inactive Publication Date: 2013-09-18
ZHEJIANG UNIV
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Problems solved by technology

A typical case is: On April 25, 2005, when a high-speed train in Japan passed through Amagasaki City, Hyogo Prefecture, the driver wanted to recover the delayed time but failed to decelerate on the cur

Method used

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  • Emergency braking signal generation device for high-speed train based on orthogonal collocation optimization
  • Emergency braking signal generation device for high-speed train based on orthogonal collocation optimization
  • Emergency braking signal generation device for high-speed train based on orthogonal collocation optimization

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Embodiment 1

[0051] Assuming that a high-speed train is running, the driver is told that an obstacle suddenly appears on the track 1km ahead, and it takes 30 seconds to remove the obstacle. The driver inputs these two pieces of information into the danger distance / processing time input unit, and at this time the current vehicle speed transmitted by the vehicle speed sensor to the central control MCU is 300km / h. The central control MCU immediately starts to run the internal orthogonal configuration optimization method, and its operation process is as follows: image 3 Shown as:

[0052] Step E1: The initialization module 32 starts to run, the number of segments of the braking process time is set to 20, and the initial guess value F of the braking strategy is set. (k) (t) is -0.5, with Both are 1, set the numerical calculation accuracy tol to 0.01, and set the number of iterations k to zero;

[0053] Step E2: Set the initial value of the ODE equations to x 1 (t 0 ) and x 2 (t 0 ), ...

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Abstract

The invention discloses an emergency braking signal generation device for a high-speed train based on orthogonal collocation optimization. The emergency braking signal generation device comprises a train speed sensor, a dangerous case distance/processing time input unit, a high-speed train central control MCU (micro controller unit), a brake unit and emergency braking alarm and state display equipment. After the train speed sensor is started for measuring current train speed in real time, a train driver inputs a dangerous case distance and the dangerous case processing time into the dangerous case distance/processing time input unit; and the high-speed train central control MCU is used for performing an internal orthogonal collocation optimization method, calculating a braking strategy capable of enabling the train to safely pass through a dangerous case position and enabling the train delay time to be shortest at the same time, converting the braking strategy obtained by the calculation into a braking instruction, sending the braking instruction to the brake unit, and sending an emergency braking alarm signal at the same time. According to the emergency braking signal generation device, the high-speed train can be guaranteed to safely pass through the dangerous case position and the train delay time can be also enabled to be shortest at the same time.

Description

technical field [0001] The invention relates to the field of rail transit safety, and mainly relates to a high-speed train emergency braking signal generator based on orthogonal configuration optimization. When an emergency occurs in front of the train, the braking strategy that minimizes the train delay time can be calculated and implemented as a braking signal. Background technique [0002] During the running of a high-speed train, sudden emergencies may occur in front of the train due to various random factors. If it is not handled in time, it will lead to serious accidents. [0003] In Japan, Germany and France, where the technology is mature, accidents on high-speed trains are not uncommon. A typical case is: On April 25, 2005, when a high-speed train in Japan passed through Amagasaki City, Hyogo Prefecture, the driver wanted to recover the delayed time but failed to decelerate on the curve and derailed. After the train collided with a train , rushed into a residenti...

Claims

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Application Information

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IPC IPC(8): B60T17/22B60T8/172
Inventor 刘兴高胡云卿张海波周赤平孙优贤
Owner ZHEJIANG UNIV
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