Urban rail vehicle heterogeneous redundant control circuit and control method, urban rail vehicle
A technology for redundant control and urban rail vehicles, applied to vehicle components, railway vehicles, motor vehicles, etc., can solve the problem of loss of logic function of key circuit circuits, achieve high reliability, high maintainability, and improve reliability Effect
Active Publication Date: 2022-02-11
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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Problems solved by technology
[0004] In view of this, the present invention provides a heterogeneous redundant control circuit and control method of an urban rail vehicle, and an urban rail vehicle to solve the problem of loss of logic function of the key circuit circuit when the relay in the key circuit of the urban rail vehicle in the prior art fails The problem
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[0053] As mentioned in the background art section, most of the key circuits of urban rail vehicles in the prior art are controlled by relays, but only relays are used for control. If a fault occurs, the control will fail.
[0054] Such as figure 1 As shown, it is a schematic diagram of the control circuit of the key circuit of the current urban rail vehicle using relay control; the control circuit includes a power supply (V+ and V- represent the input terminals of the power supply), a switch 1, a relay A and an execution module 4; wherein, the relay A includes a coil 2 and the normally open contact 3, the switch 1 and the coil 2 are connected in series between the positive and negative poles of the power supply, and the normally open contact 3 of the relay and the execution unit 4 are connected in series between the positive and negative poles of the power supply. When working, the switch 1 controls whether the execution unit 4 operates through the relay A. Specifically, when...
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The present application provides an urban rail vehicle redundant control circuit and control method, and an urban rail vehicle. The control circuit includes: a power supply, a switch, a relay, an execution unit, a driver's cab redundant control device, and a logic control unit; the driver's cab One end of the redundant control device is connected to the positive pole of the power supply; the other end is used to be respectively connected to the first input end of the logic control unit and one end of the normally open contact; the output end of the logic control unit is connected to the execution unit One end is connected; the second input end of the logic control unit is connected with the common end of the switch and the coil; on the basis of the prior art circuit, the driver’s cab redundant control device and the logic control unit are added, and the newly added The driver's cab redundancy control device switches the relay circuit to the one controlled by the logic control unit, so that in the event of a relay failure, the logic control capability of the control circuit is maintained and redundant settings are realized.
Description
technical field [0001] The invention relates to the technical field of rail vehicle control, in particular to a heterogeneous redundant control circuit and control method of an urban rail vehicle, and an urban rail vehicle. Background technique [0002] The key circuit of urban rail vehicle is the circuit related to the vehicle. With the advancement of technology and the continuous development of the rail transit industry, the degree of electronic control of vehicle IO is getting higher and higher. However, considering the importance of the key circuit of the vehicle, and the vehicle IO electronic control is still in the verification stage. At present, most of the key circuits of vehicles are still controlled by relays, but the relays themselves have disadvantages such as easy jamming, vibration, and poor contact, and are limited by the environment and the number of operations, so the reliability is not high; Some urban rail vehicles have no redundant design for the key circ...
Claims
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IPC IPC(8): B60L3/00
CPCB60L3/0023B60L2200/26
Inventor 肖曦彭冬良沈朝喜赵淑玉许晋荣
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD