CN210653104U - Novel redundant control system of rail vehicle air conditioner - Google Patents
Novel redundant control system of rail vehicle air conditioner Download PDFInfo
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- CN210653104U CN210653104U CN201921609576.2U CN201921609576U CN210653104U CN 210653104 U CN210653104 U CN 210653104U CN 201921609576 U CN201921609576 U CN 201921609576U CN 210653104 U CN210653104 U CN 210653104U
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Abstract
The utility model provides a novel redundant control system of rail vehicle air conditioner, including central controller and reserve control module, reserve control module includes chip monitoring unit and reserve control assembly, through chip monitoring unit acquires central controller's operating condition in real time, when central controller breaks down or became invalid, chip monitoring unit control starts reserve control module in order to maintain air conditioning system's normal work, has ensured vehicle air conditioning system's normal operating, has improved air conditioning system's reliability, has guaranteed the travelling comfort of vehicle, has still reduced fault rate and maintenance and service cost simultaneously.
Description
Technical Field
The utility model relates to a rail transit air conditioning system refrigeration technology field especially relates to a novel redundant control system of rail vehicle air conditioner.
Background
With the development of society, the improvement of science and technology and the improvement of the living standard of people, rail transit vehicles become one of important transportation means for people to go out, and not only have railway rail transit such as high-speed rails, motor cars and ordinary passenger cars, but also have urban rail systems such as subways, light rails and single rails, passengers are concerned about the environmental comfort and the air quality in the carriage when the service requirements are improved, and especially are concerned about the reliability for long-distance traveling vehicles and pedestrians. The environmental comfort and the air quality in the carriage are completely guaranteed by the air conditioning system of the rail vehicle, so that the reliability is particularly important for the requirement of high reliability of the refrigerating system when the air conditioning of the rail vehicle is developed towards the intelligentization direction. It has many functional differences in the control system compared to the existing rail vehicle air conditioners.
In the air conditioning system of the current rail transit vehicle, no matter the air conditioning system is a fixed-frequency air conditioning system or a variable-frequency air conditioning unit, the air conditioning system is adjusted and conveyed by controlling electric matching system components such as a compressor, a condensing fan, an air supply fan and the like, a coil heat exchanger and the like, the components control and manage electric components such as a circuit breaker, a contactor, a relay and the like through a central controller to a certain extent, or the management and control of a motor, a fan and the like are realized through the communication between a frequency converter and the central controller, the electric control devices or the frequency converter depend on the central controller to realize the control and management, theoretically, once the central controller fails, the whole control system is paralyzed, the air conditioning system cannot normally work, and only the ventilation system can work for a short time according to the current traditional control theory, only a certain amount of fresh air is supplied to the carriage, temperature control can not be provided any more, and comfort and reliability can not be effectively guaranteed.
Disclosure of Invention
In order to solve the problem, the utility model provides a novel redundant control system of rail vehicle air conditioner.
The main contents of the utility model include:
a novel redundant control system of a rail vehicle air conditioner comprises a vehicle communication management module, a central controller, a standby control module and element controllers which are respectively and independently arranged on each vehicle air conditioner element; the standby control module comprises a chip monitoring unit and a standby control component; the central controller is in communication with the vehicle communication management module and the element controller; the chip monitoring unit is connected with the central controller and the standby control assembly, and the standby control assembly is connected with the element controller.
Preferably, the vehicle air conditioning element comprises a fan set, a compressor set, a condensing motor and an evaporation fan set.
Preferably, the standby control assembly comprises a first control unit and a second control unit, and the first control unit is connected with the air door group and the evaporation fan group; the second control unit is connected with the compressor unit and the condensing motor.
Preferably, the model of the first control unit is CPM2A-CPU 61; the second control unit is a mechanical temperature controller.
Preferably, the chip monitoring unit is a watchdog chip.
Preferably, the vehicle communication management module is connected with the central controller through a field bus.
Preferably, the model of the central controller is CPM2A-CPU 61.
The beneficial effects of the utility model reside in that: the utility model provides a novel redundant control system of rail vehicle air conditioner, including central controller and reserve control module, reserve control module includes chip monitoring unit and reserve control assembly, through chip monitoring unit acquires central controller's operating condition in real time, when central controller breaks down or became invalid, chip monitoring unit control starts reserve control module in order to maintain air conditioning system's normal work, has ensured vehicle air conditioning system's normal operating, has improved air conditioning system's reliability, has guaranteed the travelling comfort of vehicle, has still reduced fault rate and maintenance and service cost simultaneously.
Drawings
Fig. 1 is a system block diagram of the present invention.
Detailed Description
The technical solution protected by the present invention will be specifically described below with reference to the accompanying drawings.
Please refer to fig. 1. The utility model provides a novel redundant control system of rail vehicle air conditioner, which comprises a vehicle communication management module, a central controller, a standby control module and element controllers which are respectively and independently arranged on each vehicle air conditioner element; the central controller is in communication with the vehicle communication management module and the element controller; the central controller receives a control signal of the vehicle communication management module and sends the control signal to the element controller so as to control a corresponding vehicle air conditioning element to work, and meanwhile, the central controller feeds back data in a vehicle to the vehicle communication management module; in this embodiment, the vehicle communication management module is a management chip used in an existing railway vehicle, and communicates with the central controller through a field bus, sends a control signal, and can also receive environmental data about the vehicle fed back by the central controller for a person to check and refer; the central controller sends control commands to the corresponding element controllers of the respective vehicle air conditioning elements, thereby adjusting the state in the vehicle.
In the embodiment, the models of the central controller and the element controllers may be the same or different, and may be the existing models, and as is preferable, the model of the central controller is CPM2A-CPU 61. The vehicle air conditioning element comprises an air door set, a compressor set, a condensing motor and an evaporation fan set. In the present embodiment, the damper group includes a damper 1 and a damper 2, the compressor group includes a compressor 1 and a compressor 2, the evaporator group includes an evaporator fan 1 and an evaporator fan 2, and each vehicle air conditioning element has its own independent element controller. The invention is characterized in that the standby control module is arranged, so that the normal work of each element controller can be controlled when the central controller fails or fails.
Specifically, the standby control module comprises a chip monitoring unit and a standby control component; the chip monitoring unit is connected with the central controller and the standby control assembly, and the standby control assembly is connected with the element controller; the chip monitoring unit is used for monitoring the state data of the central controller, when the central controller works normally, the chip monitoring unit only sends real-time pulse signals to the chip monitoring unit, at the moment, the chip monitoring unit does not make any indication, the central controller controls the air conditioning system according to normal control logic, and when the central controller fails or has other problems, the control function of the chip monitoring unit is activated, and control commands are sent to all element controllers.
Furthermore, for better control of each element controller, the standby control assembly comprises a first control unit and a second control unit, and the first control unit is connected with the air door group and the evaporation fan group; the second control unit is connected with the compressor unit and the condensing motor; in one embodiment, the first control unit is a control chip, and the model of the first control unit is CPM2A-CPU 61; the second control unit is a mechanical temperature controller, and the type of the second control unit can be selected according to the requirement; the model of the watchdog chip can be selected as the MCU monitoring chip SP706 with low power consumption, high reliability and low cost produced by Exar company in the embodiment; and the second control unit can be connected with the chip monitoring unit, is controlled by the chip monitoring unit, and can also automatically start control by monitoring the environmental data of the vehicle in real time according to own control logic.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. A novel redundant control system of a rail vehicle air conditioner is characterized by comprising a vehicle communication management module, a central controller, a standby control module and element controllers which are respectively and independently arranged on vehicle air conditioner elements; the standby control module comprises a chip monitoring unit and a standby control component; the central controller is in communication with the vehicle communication management module and the element controller; the chip monitoring unit is connected with the central controller and the standby control assembly, and the standby control assembly is connected with the element controller.
2. The novel redundant control system for air conditioners of rail vehicles as claimed in claim 1, wherein the vehicle air conditioning elements comprise a set of air valves, a set of compressors, a condensing motor, and a set of evaporative fans.
3. The novel redundant control system of rail vehicle air conditioners as claimed in claim 2, wherein the standby control assembly comprises a first control unit and a second control unit, the first control unit is connected with the air door set and the evaporation fan set; the second control unit is connected with the compressor unit and the condensing motor.
4. The novel redundant control system for air conditioners of rail vehicles as claimed in claim 3, wherein the model number of the first control unit is CPM2A-CPU 61; the second control unit is a mechanical temperature controller.
5. The novel redundant control system for air conditioners of railway vehicles as claimed in any one of claims 1 to 4, wherein the chip monitoring unit is a watchdog chip.
6. The novel redundant control system for air conditioners of rail vehicles as claimed in any one of claims 1 to 4, wherein the vehicle communication management module is connected with the central controller through a field bus.
7. The novel redundant control system for air conditioners of railway vehicles as claimed in any one of claims 1 to 4, wherein the central controller is of the type CPM2A-CPU 61.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921609576.2U CN210653104U (en) | 2019-09-25 | 2019-09-25 | Novel redundant control system of rail vehicle air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921609576.2U CN210653104U (en) | 2019-09-25 | 2019-09-25 | Novel redundant control system of rail vehicle air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210653104U true CN210653104U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201921609576.2U Active CN210653104U (en) | 2019-09-25 | 2019-09-25 | Novel redundant control system of rail vehicle air conditioner |
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| CN (1) | CN210653104U (en) |
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2019
- 2019-09-25 CN CN201921609576.2U patent/CN210653104U/en active Active
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