Urban rail vehicle heterogeneous redundancy control circuit and method, and urban rail vehicle
A technology for redundant control and urban rail vehicles, applied in railway vehicles, vehicle components, motor vehicles, etc., can solve problems such as loss of logic functions of key loop circuits, and achieve high reliability, high maintainability, and improved reliability. Effect
Active Publication Date: 2020-06-09
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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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] like 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 th...
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The invention provides an urban rail vehicle redundancy control circuit and method, and an urban rail vehicle. The control circuit comprises a power supply, a switch, a relay, an execution unit, a cabredundancy control device and a logic control unit; one end of the cab redundancy control device is connected with the positive electrode of the power supply; the other end of the cab redundancy control device is used for being connected with the first input end of the logic control unit and one end of a normally open contact respectively; the output end of the logic control unit is connected with one end of the execution unit; and the second input end of the logic control unit is connected with the switch and the common end of the coil. On the basis of a circuit in the prior art, the cab redundancy control device and the logic control unit are additionally arranged, and a relay loop is switched to be controlled by the logic control unit through the additionally arranged cab redundancy control device, so that the logic control capability of a control circuit is kept under the condition that the relay fails, and redundancy setting is 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