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Urban rail vehicle starting control method

A technology for urban rail vehicles and vehicles, applied in the direction of control devices, vehicle components, external condition input parameters, etc., can solve the problems of large impact and prolonged response time, reduce traction force and impact force, and shorten start-up delay time Effect

Inactive Publication Date: 2016-02-03
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the vehicle needs to build up such a large amount of traction every time it starts to release the holding brake, then the response time of the vehicle starting will be prolonged, and the impact of the vehicle starting will be greater

Method used

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  • Urban rail vehicle starting control method

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Comparison scheme
Effect test

Embodiment Construction

[0025] The starting control method of the urban rail vehicle of the present invention comprises the following steps:

[0026] A. When the vehicle is parked, calculate the simulated slope α of the parking line;

[0027] B. When the vehicle starts, calculate the simulated sliding force F of the vehicle on the simulated slope 1 ;Increase the traction force F 2 , when F 2 =F 1 , start to release the holding brake;

[0028] C. Keep the brake fully released, start the vehicle, increase F 2 to target traction.

[0029] In step B, during the process of releasing the holding brake, F 2 remains the same size.

[0030] The calculation method of α in step A is: when the speed V of the vehicle decreases to the set value, calculate the instantaneous deceleration a of the vehicle according to V 1 , and the real-time braking force F and the vehicle weight m at the time of parking 1 The ratio of is used as the simulated deceleration a 2 , get α=g*arcsin(a 3 ), where g is the acceler...

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Abstract

The invention discloses an urban rail vehicle starting control method comprising the following steps: A. when a vehicle stops, calculating a simulation rampway Alpha of a stopping route; B. when the vehicle is in a starting state, calculating simulation slipping force F1 on the simulation rampway, increasing traction force F2, and when the F2 is equal to F1, starting relieving to maintain braking; and C. keeping braking while performing complete relieving, staring the vehicle, and increasing F2 to target traction force. According to the urban rail vehicle starting control method, the starting delaying time of the urban rail vehicle is shortened on a basis that a function of preventing the vehicle from backward slipping is realized, the traction force and impact force during starting are reduced.

Description

technical field [0001] The invention belongs to the field of rail vehicle start control, in particular to a method for urban rail vehicle start control. Background technique [0002] When the urban rail vehicle stops, the holding brake needs to be applied to prevent the vehicle from parking on the slope and causing the vehicle to slip backward. Similarly, in order to prevent the vehicle from slipping, when the urban rail vehicle is towed and started, it is necessary to establish a certain amount of traction before starting to release the holding brake. [0003] At present, the starting control method adopted by the urban rail vehicle is: when the traction force established by the vehicle is greater than the sliding force of the vehicle on the largest slope of the line, the brake is released and held. [0004] In fact, urban rail vehicles generally only park on the platform, and the platform does not have too much ramp, which means that urban rail vehicles generally do not s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W40/076B60W10/04B60W10/18
CPCB60W40/076B60W10/04B60W10/18B60W2550/142
Inventor 龙华炜全荣曾毅沈刘星张青
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO
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