WO2021109642A1 - 一种供气控制方法、装置、存储介质及车辆 - Google Patents

一种供气控制方法、装置、存储介质及车辆 Download PDF

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Publication number
WO2021109642A1
WO2021109642A1 PCT/CN2020/112445 CN2020112445W WO2021109642A1 WO 2021109642 A1 WO2021109642 A1 WO 2021109642A1 CN 2020112445 W CN2020112445 W CN 2020112445W WO 2021109642 A1 WO2021109642 A1 WO 2021109642A1
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Prior art keywords
air compressor
air
priority
pneumatic
pneumatic system
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PCT/CN2020/112445
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English (en)
French (fr)
Inventor
魏恒
邱东
刘壬生
陈辉
潘高强
朱守朝
Original Assignee
珠海格力电器股份有限公司
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Publication of WO2021109642A1 publication Critical patent/WO2021109642A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
    • B60G11/27—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/26—Compressed-air systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00

Definitions

  • the present disclosure belongs to the technical field of vehicles, and in particular relates to an air supply control method, device, storage medium and vehicle, and more particularly to an air compressor energy-saving air supply method, device, storage medium and vehicle.
  • the air compressor (air compressor) is a compressed air supply device and the power source of the pneumatic system on the car.
  • Commercial vehicles and some passenger cars equipped with air suspension will use compressed air as the power source for braking systems, air spring suspensions or door control systems.
  • air spring suspension equipment is pneumatic system equipment using air source in commercial vehicles and passenger cars. It is commonly used in passenger cars, especially off-road vehicles or all-road conditions, while in commercial vehicles, whether it is a level adjustment device controlled by an ordinary height valve or a level adjustment device with a height sensor and an electronic control unit, sufficient air is required.
  • the source power guarantees the operation of the system.
  • air storage cylinders of different volumes and pressures are provided.
  • the inflation and stopping of the air storage are controlled by the pressure switch on the air storage.
  • the air compressor will continuously supply compressed air according to the inflation demand of the air storage cylinder.
  • the pressure of the commercial vehicle pipeline system is about 10bar. Due to the small installation space of passenger cars, the pressure of the electronically controlled air suspension system can reach 18-20bar. The failure of the air compressor will cause the entire vehicle air system to be paralyzed and severely restrict the use of the entire vehicle Reliability, so the optimal use of air compressors is particularly important.
  • the air compressor or no control system only relying on the pressure switch of the air reservoir to directly control its start and stop, resulting in frequent start and stop of the inflation requirements of various pneumatic systems; or the control system is too complicated and difficult to integrate, resulting in an increase in the cost of the air supply system At the same time, reliability has not been improved.
  • the purpose of the present disclosure is to provide an air supply control method, device, storage medium, and vehicle in view of the above-mentioned defects, so as to solve the problem of poor control reliability of the air compressor and achieve the effect of improving the control reliability of the air compressor.
  • the present disclosure provides an air supply control method, including: determining the allowable operating time of the air compressor of the vehicle, and determining the priority of N pneumatic systems for air supply by the air compressor; where N is a natural number; Allow running time, combined with the priority of N pneumatic systems, control the on or off state of the air compressor, and control the air supply state of the air compressor to the N pneumatic systems when the air compressor is on.
  • determining the allowable operating time of the air compressor of the vehicle includes: obtaining the current temperature of the air compressor; and calculating the difference between the current temperature and the set limit temperature with the set average temperature rise gradient The ratio between is used as the allowable operating time of the air compressor.
  • determining the priority of the N pneumatic systems supplied by the air compressor includes: determining whether the pneumatic system with a higher priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor; The pneumatic system with high priority needs to start the air compressor, it is not necessary to determine whether the pneumatic system with priority lower than this priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor; if the priority is high If the pneumatic system does not need to start the air compressor, it is determined whether the pneumatic system with priority lower than the priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor.
  • determining whether the pneumatic system with the highest priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor including: acquiring the pneumatic system with the highest priority among the N pneumatic systems supplied by the air compressor The air pressure information of the air tank of the system; if the air pressure information of the air tank of the pneumatic system with high priority is lower than or equal to the lower limit of the set air pressure range of the air tank of the pneumatic system with high priority, the priority is determined
  • a high-priority pneumatic system needs to start the air compressor and control the opening of the charging path of the gas cylinder of the high-priority pneumatic system; if the air pressure information of the gas cylinder of the high-priority pneumatic system is higher than or equal to the high priority
  • the upper limit of the set air pressure range of the air cylinder of the pneumatic system it is determined that the pneumatic system with high priority does not need to start the air compressor, and the inflation path of the air cylinder of the pneumatic system with high priority is controlled to be closed.
  • controlling the on or off state of the air compressor includes: determining whether the allowable operating time of the air compressor is greater than a set operating time threshold; if the allowable operating time of the air compressor is greater than the set operating time Threshold, no reminder message that the current temperature of the air compressor is higher than the set temperature threshold is not issued, and/or the air compressor is controlled to be in the on state; if the allowable operating time of the air compressor is less than or equal to the set operating time threshold , The air compressor is controlled to be in a shutdown state, and a reminder message that the current temperature of the air compressor is higher than the set temperature threshold is issued.
  • controlling the air supply state of the air compressor to the N pneumatic systems includes: allowing the air compressor to supply air when the pneumatic system with the highest priority among the N pneumatic systems needs to start the air compressor
  • the passage inflates the air reservoir of the first part of the pneumatic system with priority lower than or equal to the priority; or, in the case of the pneumatic system with the highest priority among the N pneumatic systems, the air compressor is allowed to start the air compressor
  • the air supply path in the N pneumatic systems inflates the air storage cylinders of the second part of the pneumatic system whose priority is lower than the priority; or, in the case that all the pneumatic systems in the N pneumatic systems do not need to start the air compressor , Control the air compressor to stop.
  • an air supply control device including: a determining unit configured to determine the allowable operating time of the air compressor of the vehicle, and determine N pneumatic systems for supplying air to the air compressor The priority of the air compressor; where N is a natural number; the control unit is set to control the on or off state of the air compressor according to the allowable operating time of the air compressor, combined with the priority of the N pneumatic systems, and in the air compression When the machine is on, it controls the air supply state of the air compressor to N pneumatic systems.
  • the determining unit determining the allowable operating time of the air compressor of the vehicle includes: obtaining the current temperature of the air compressor; and comparing the difference between the current temperature and the set limit temperature with the set limit temperature. The ratio between the average temperature rise gradients is used as the allowable operating time of the air compressor.
  • the determining unit determines the priority of the N pneumatic systems supplied by the air compressor, including: determining whether a pneumatic system with a higher priority among the N pneumatic systems supplied by the air compressor needs to start air compression If the pneumatic system with high priority needs to start the air compressor, it is not necessary to determine whether the pneumatic system with priority lower than this priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor; The pneumatic system with high priority does not need to start the air compressor, so it is determined whether the pneumatic system with priority lower than the priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor.
  • the determining unit determines whether a pneumatic system with a higher priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor, including: obtaining priority among the N pneumatic systems supplied by the air compressor The air pressure information of the air cylinder of the pneumatic system with high priority; if the air pressure information of the air cylinder of the pneumatic system with high priority is lower than or equal to the lower limit of the set air pressure range of the air cylinder of the pneumatic system with high priority, then It is determined that the pneumatic system with high priority needs to start the air compressor and control the opening of the charging path of the air cylinder of the pneumatic system with high priority; if the air pressure information of the air cylinder of the pneumatic system with high priority is higher than or equal to The upper limit of the set air pressure range of the air cylinder of the pneumatic system with the higher priority is determined, the pneumatic system with the higher priority does not need to start the air compressor, and the inflation path of the air cylinder of the pneumatic system with the higher priority is controlled to be closed .
  • control unit controlling the on or off state of the air compressor includes: determining whether the allowable operating time of the air compressor is greater than a set operating time threshold; if the allowable operating time of the air compressor is greater than the set operating time If the operating time threshold is set, no reminder message that the current temperature of the air compressor is higher than the set temperature threshold will not be issued, and/or the air compressor will be controlled to be turned on; if the allowable operating time of the air compressor is less than or equal to the set The air compressor is controlled to be in a shutdown state, and a reminder message that the current temperature of the air compressor is higher than the set temperature threshold is issued.
  • control unit controls the air supply state of the air compressor to the N pneumatic systems, including: allowing air compression in the case that the pneumatic system with the highest priority among the N pneumatic systems needs to start the air compressor
  • the air supply path of the machine inflates the air reservoir of the first part of the pneumatic system with priority lower than or equal to the priority; or, in the case of the pneumatic system with the highest priority among the N pneumatic systems, the air compressor does not need to be started, Allow the air supply path of the air compressor to inflate the air storage cylinders of the second part of the pneumatic system with priority lower than the priority of the N pneumatic systems; or, all the pneumatic systems in the N pneumatic systems do not need to start air compression In the case of an air compressor, control the air compressor to stop.
  • a vehicle including: the above-mentioned air supply control device.
  • another aspect of the present disclosure provides a storage medium, including: a plurality of instructions are stored in the storage medium; the plurality of instructions are configured to be loaded by a processor and execute the above-mentioned supply Gas control method.
  • a vehicle including: a processor configured to execute a plurality of instructions; a memory configured to store a plurality of instructions; wherein the plurality of instructions are configured to It is stored by the memory, loaded by the processor and executed by the gas supply control method described above.
  • the solution of the present disclosure according to the priority of each pneumatic system of the air compressor supply (for the safety of the whole vehicle), selects different pressure switches that switch the air pressure to ensure the safe and stable operation of the air compressor and reduce the frequent start and stop of the air compressor The number of times to achieve reliable protection of the priority of the pneumatic system.
  • the solution of the present disclosure uses the air compressor temperature sensor to monitor its operating status in real time, and uses the current temperature and the limit operating temperature to calculate the time for the air compressor to reach the limit operating temperature, which is used as the air compressor to allow operation To realize the safe and energy-saving air supply of the air compressor.
  • the solution of the present disclosure selects pressure switches that switch the air pressure according to the priority of each pneumatic system supplied by the air compressor, and monitors its operating status in real time through the air compressor temperature sensor, using the current temperature and Limit working temperature, calculate the time for the air compressor to reach the limit working temperature, which is used as the judgement value of the allowable operation of the air compressor, and solves the problems of frequent start and stop of the air supply system of the air compressor and the failure and shutdown of the air compressor caused by temperature rise , Improve the safety and reliability of the supply system.
  • the solution of the present disclosure optimizes the air supply logic of the air supply system by using the air compressor temperature limit model and the pressure switch priority response model of different pneumatic systems, so that it is always in a lower load response state. , To avoid the frequent start and stop of the air compressor air supply system, and the temperature rise causing the air compressor to fail and stop, and improve the safety and reliability of the supply system.
  • the solution of the present disclosure can ensure the safe and stable operation of the air compressor, reduce the number of frequent start and stop of the air compressor, and improve the reliability of the entire pneumatic system by allowing the running time to be combined with the priority of the system where the pressure switch is located. It ensures the working status of different priority systems and the working life of the air compressor; it can solve the problem of frequent opening of the air compressor, realize the safe and energy-saving air supply of the air compressor, and realize the reliable protection of the priority of the pneumatic system.
  • the solution of the present disclosure according to the allowable operating time of the air compressor, combined with the priority of the pneumatic system where the pressure switch of each pneumatic system supplied by the air compressor is located, selects the pressure switch that switches the air pressure in different pneumatic systems to solve the problem of air
  • the problem of poor control reliability of the compressor achieves the effect of improving the control reliability of the air compressor.
  • FIG. 1 is a schematic flowchart of an embodiment of the gas supply control method of the present disclosure
  • FIG. 2 is a schematic flowchart of an embodiment of determining the allowable operating time of the air compressor of the vehicle in the method of the present disclosure
  • FIG. 3 is a schematic flowchart of an embodiment of determining the priority of N pneumatic systems supplied by air compressors in the method of the present disclosure
  • FIG. 4 is a schematic flowchart of an embodiment of determining whether a pneumatic system with a higher priority among N pneumatic systems supplied by an air compressor needs to start an air compressor in the method of the present disclosure
  • FIG. 5 is a schematic flowchart of an embodiment of controlling the on state or the off state of the air compressor in the method of the present disclosure
  • Fig. 6 is a schematic structural diagram of an embodiment of the gas supply control device of the present disclosure.
  • FIG. 7 is a schematic diagram of the air supply structure of an air compressor and a pneumatic system of an embodiment of the vehicle of the present disclosure (taking an air spring suspension as an example);
  • FIG. 8 is a schematic diagram of state switching of different priority pressure switches of an embodiment of the vehicle of the present disclosure.
  • FIG. 9 is a schematic diagram of the air supply process of the air compressor air supply system of an embodiment of the vehicle of the present disclosure.
  • FIG. 10 is a schematic structural diagram of an air compressor air supply system of an embodiment of the vehicle of the present disclosure.
  • a gas supply control method is provided, as shown in FIG. 1, a schematic flowchart of an embodiment of the method of the present disclosure.
  • the gas supply control method may include: step S110 and step S120.
  • N pneumatic systems can include: air suspension system, service brake system, parking brake system and door control system.
  • the priority of the N pneumatic systems may be a set sequence of operation of the N pneumatic systems.
  • the flow diagram of an embodiment of determining the allowable operating time of the air compressor of the vehicle in the method of the present disclosure shown in FIG. 2 can be further described to further illustrate the process of determining the allowable operating time of the air compressor of the vehicle in step S110.
  • the specific process may include: step S210 and step S220.
  • Step S210 Obtain the current temperature of the air compressor.
  • the current temperature of the air compressor is collected by a temperature sensor provided at the air compressor.
  • step S220 the ratio between the difference between the current temperature and the set limit temperature and the set average temperature rise gradient is used as the allowable operating time of the air compressor.
  • the temperature sensor arranged on the cylinder head of the compressor can record the current temperature T c , and calculate the allowable operating time of the air compressor according to the limit temperature T LMT , that is, the longest allowable operating time of the air compressor t TH , which satisfies
  • T LMT limit temperature
  • t TH (T LMT- T c )/average temperature rise gradient.
  • pressure switches such as pressure relays
  • the air compressor temperature sensor to monitor its operating status in real time, use the current temperature and the limit working temperature to calculate the time for the air compressor to reach the limit working temperature, which is used as the judgment value of the air compressor's allowable operation.
  • the air compressor can be allowed to operate only when the safety of the air compressor is ensured, which is beneficial to improving the reliability and safety of the air compressor's operation.
  • the flow diagram of an embodiment of determining the priority of N pneumatic systems supplied by the air compressor in the method of the present disclosure shown in FIG. 3 can be further described to further illustrate the process of determining the air supply by the air compressor in step S110.
  • the specific process of the priority of the N pneumatic systems may include: step S310 to step S330.
  • step S310 it is determined whether the pneumatic system with a higher priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor.
  • step S410 it is determined whether the pneumatic system with high priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor.
  • step S430 The specific process of determining whether the pneumatic system with the higher priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor in S310 may include: step S410 to step S430.
  • Step S410 Obtain the air pressure information of the air cylinder of the pneumatic system with the higher priority among the N pneumatic systems supplied by the air compressor.
  • Step S420 if the air pressure information of the air cylinder of the pneumatic system with high priority is lower than or equal to the lower limit of the set air pressure range of the air tank of the pneumatic system with high priority, then it is determined that the pneumatic system with high priority needs Start the air compressor and control the opening of the charging path of the air cylinder of the pneumatic system with the higher priority.
  • step S430 if the air pressure information of the air cylinder of the pneumatic system with high priority is higher than or equal to the upper limit of the set air pressure range of the air cylinder of the pneumatic system with high priority, it is determined that the pneumatic system with high priority is not It is necessary to start the air compressor and control the closing of the charging passage of the air cylinder of the pneumatic system with high priority.
  • the pressure switch has the function of maintaining a certain pressure of the air cylinder (the certain pressure is between two switching air pressures such as switching air pressure b p sb and switching air pressure a p sa ).
  • the air supply processing unit receives the air compressor temperature sensor signal and the pressure switch signal of each air system.
  • the pressure switch has the function of maintaining a certain pressure of the air cylinder (the certain pressure is between two switching air pressures such as switching air pressure b p sb and Switching air pressure between ap and sa ).
  • the air compressor needs to be turned on for charging.
  • step S320 if the pneumatic system with high priority needs to start the air compressor, the priority of the N pneumatic systems supplied by the air compressor is determined to be high priority, and there is no need to determine the N pneumatic systems supplied by the air compressor. Whether the pneumatic system with priority lower than this priority in the system needs to start the air compressor.
  • step S330 if the pneumatic system with high priority does not need to start the air compressor, it is determined that the priority of the N pneumatic systems supplied by the air compressor is lower than the priority, and the N pneumatic systems supplied by the air compressor are determined Whether the pneumatic system with priority lower than this priority in the system needs to start the air compressor, and so on.
  • Switching air pressure a corresponds to the turning point from low pressure to high pressure (also called the closing point of the pressure switch). After switching air pressure a, the state of the pressure switch is in the closed state, that is, the air compressor does not need to be stored again.
  • the pump is inflated.
  • Switching air pressure b corresponds to the turning point from high pressure to low pressure (also called the opening point of the pressure switch). After switching air pressure a, the state of the pressure switch is closed.
  • the pressure switch on the air reservoir of each pneumatic system can be expressed as S 1 ⁇ S 4 , so: Priority: S 1 >S 2 >S 3 >S 4 Switching air pressure: P sa1 ⁇ P sa2 ⁇ P sa3 ⁇ P sa4 .
  • the switching air pressure b is to meet the minimum air pressure requirements of their work, and the switching air pressure a is set differently according to the priority level of the pneumatic system.
  • the priority of the pressure switches of the service brake system, parking brake system, air suspension system, and door control system will decrease sequentially, then: S 1 > S 2 > S 3 > S 4 , then select according to the characteristics of the pneumatic system
  • the switching air pressure value satisfies the relationship of p sa1 ⁇ p sa2 ⁇ p sa3 ⁇ p sa4 .
  • step S120 according to the allowable operating time of the air compressor, combined with the priority of the N pneumatic systems, the start or stop state of the air compressor is controlled, and when the air compressor is on, the air compressor is controlled to The air supply status of N pneumatic systems.
  • the safe and stable operation of the air compressor can be ensured, the number of frequent start and stop of the air compressor can be reduced, and the entire pneumatic system can be improved
  • the reliability of the system ensures the working status of different priority systems and the working life of the air compressor. It can solve the problem of frequent opening of the air compressor, realize the safe and energy-saving air supply of the air compressor (such as the state of the air compressor), and realize the reliable protection of the priority of the pneumatic system.
  • the air compressor temperature limit model and the pressure switch priority response model of different pneumatic systems to optimize the air supply logic of the air supply system so that it is always in a lower load response state, such as: using different pneumatic systems
  • the pressure switch setting combined with the temperature model of the air compressor, provides air supply functions with different priority levels for different pneumatic systems, reducing the number of normal start and stop times of the air compressor. It also ensures that the air compressor works in a safe operating range, avoids failures and stops, and solves the frequent start and stop of the air compressor's air supply system, and the temperature rise causes the air compressor to break down and other problems, and improve the safety and reliability of the supply system.
  • the flow chart of an embodiment of controlling the on state or off state of the air compressor in the method of the present disclosure shown in FIG. 5 may be combined to further illustrate the control of the on state or off state of the air compressor in step S120.
  • the specific process may include: step S510 to step S530.
  • step S510 it is determined whether the allowable operating time of the air compressor is greater than a set operating time threshold.
  • step S520 if the allowable operating time of the air compressor is greater than the set operating time threshold, no information is issued that the current temperature of the air compressor is higher than the set temperature threshold when the air compressor needs to be turned on or does not need to be turned on.
  • Reminder messages, and/or control the air compressor to be turned on when the air compressor needs to be turned on such as controlling the air compressor to turn on when the air compressor is in a stopped state and needs to be turned on, or when the air compressor is turned on Control the air compressor to stay on when it is in the state.
  • step S530 if the allowable operating time of the air compressor is less than or equal to the set operating time threshold, the air compressor is controlled to be in a shutdown state, for example, the air compressor is controlled to stop when the air compressor is in the on state, or when the air compressor is turned on.
  • the air compressor is controlled to remain in the shutdown state, and a reminder message that the current temperature of the air compressor is higher than the set temperature threshold is issued. For example: if the allowable operating time t TH of an air compressor approaches 0, the compressor must be stopped immediately and an alarm signal should be issued. When the temperature of the compressor drops, the signal from the air compressor is received again to continue working to ensure the safe and stable operation of the compressor.
  • controlling the air supply state of the air compressor to the N pneumatic systems in step S120 may include any of the following control situations.
  • the first control situation in the case that the pneumatic system with high priority among the N pneumatic systems needs to start the air compressor, allow the air supply path of the air compressor to have a priority lower than or equal to the first part of the pneumatic system
  • the air storage cylinder of the air compressor is allowed to inflate, that is, the air supply pipeline of the air compressor is allowed to inflate the air storage cylinders of the first part of the pneumatic system whose priority is lower than or equal to the priority of the N pneumatic systems.
  • the air compressor inflates all the air cylinders of the pneumatic system through the air supply pipeline, and the air cylinder with the lower priority level It can be inflated "by the way", and the air compressor responds more to high-priority air reservoir inflation requests. In this way, the air cylinder with a low priority will not send out a request signal if it is maintained in a larger air pressure range, and the more sluggish air tank is guaranteed to be within the allowable air pressure range.
  • the second control situation in the case that the pneumatic system with the highest priority among the N pneumatic systems does not need to start the air compressor, the air supply path of the air compressor is allowed to have a priority lower than this priority among the N pneumatic systems.
  • the air reservoir of the second part of the pneumatic system is inflated, that is, the air supply pipeline of the air compressor is allowed to inflate the air reservoir of the second part of the pneumatic system whose priority is lower than the priority among the N pneumatic systems.
  • control the air compressor to stop that is, control the air compressor to switch from the on state to the off state.
  • the air compressor in the process of controlling the start and stop of the air compressor, when the high priority system does not have a charging request, the air compressor will be relatively idle to meet the charging request of the low priority pneumatic system air cylinder, so as to make the air supply
  • the system is running in a low-load start-stop state of the design state.
  • the processing unit reads the current temperature value, and calculates the maximum allowable working time t TH according to formula (1), when t TH is greater than 0 (or the minimum time of an air compressor shutdown time t OFF , t OFF is greater than or equal to 0) , It is believed that the air compressor can continue to work, so the air compressor warning signal is not issued (or cleared). At the same time, it accepts the inflating request instruction of the air cylinder. According to the priority of different pneumatic systems, read the signal value of the pressure switch in sequence, from high priority to low priority, when any pressure switch requests inflation, the air compressor is turned on and the cycle is repeated. Otherwise, keep the air compressor stopped and cycle.
  • the operation process of the air compressor can be controlled.
  • the normal and safe operation of each pneumatic system can be ensured, and on the other hand, the energy-saving operation of the air compressor can be controlled.
  • the technical solution of this embodiment is adopted to ensure the safety and stability of the air compressor by selecting pressure switches with different air pressures according to the priority of each pneumatic system supplied by the air compressor (for the safety of the entire vehicle) Work, reduce the frequency of frequent start and stop of the air compressor, and realize the reliable protection of the priority of the pneumatic system.
  • an air supply control device corresponding to the air supply control method is also provided. See FIG. 6 for a schematic structural diagram of an embodiment of the device of the present disclosure.
  • the air supply control device may include: a determination unit 102 and a control unit 104.
  • the determining unit 102 may be configured to determine the allowable operating time of the air compressor of the vehicle and determine the priority of N pneumatic systems supplied by the air compressor.
  • N is a natural number.
  • N pneumatic systems can include: air suspension system, service brake system, parking brake system and door control system.
  • the priority of the N pneumatic systems may be a set sequence of operation of the N pneumatic systems.
  • the determining unit 102 determining the allowable operating time of the air compressor of the vehicle may include:
  • the determining unit 102 may also be specifically configured to obtain the current temperature of the air compressor. For the specific function and processing of the determining unit 102, refer to step S210.
  • the current temperature of the air compressor is collected by a temperature sensor provided at the air compressor.
  • the determining unit 102 may also be specifically configured to use the ratio of the difference between the current temperature and the set limit temperature to the set average temperature rise gradient as the allowable operating time of the air compressor.
  • the specific function and processing of the determining unit 102 also refer to step S220.
  • the temperature sensor arranged on the cylinder head of the compressor can record the current temperature T c , and calculate the allowable operating time of the air compressor according to the limit temperature T LMT , that is, the longest allowable working time of the air compressor t TH , which satisfies
  • T LMT limit temperature
  • t TH (T LMT- T c )/average temperature rise gradient.
  • pressure switches such as pressure relays
  • the air compressor temperature sensor to monitor its operating status in real time, use the current temperature and the limit operating temperature to calculate the time for the air compressor to reach the limit operating temperature, which is used as the judgment value of the air compressor's allowable operation.
  • the air compressor can be allowed to operate only when the safety of the air compressor is ensured, which is beneficial to improving the reliability and safety of the air compressor's operation.
  • the determining unit 102 determines the priority of the N pneumatic systems supplied by the air compressor, which may include:
  • the determining unit 102 may also be specifically configured to determine whether the pneumatic system with a higher priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor. For the specific function and processing of the determining unit 102, refer to step S310.
  • the determining unit 102 determines whether the pneumatic system with a higher priority among the N pneumatic systems supplied by the air compressor needs to start the air compressor, which may include:
  • the determining unit 102 may be specifically configured to obtain the air pressure information of the air cylinder of the pneumatic system with a higher priority among the N pneumatic systems supplied by the air compressor. For the specific function and processing of the determining unit 102, refer to step S410.
  • the determining unit 102 may be specifically configured to: if the air pressure information of the air cylinder of the pneumatic system with high priority is lower than or equal to the lower limit of the set air pressure range of the air cylinder of the pneumatic system with high priority, then It is determined that the pneumatic system with high priority needs to start the air compressor and control the opening of the charging path of the air cylinder of the pneumatic system with high priority.
  • the specific function and processing of the determining unit 102 also refer to step S420.
  • the determining unit 102 may be specifically configured to: if the air pressure information of the air cylinder of the pneumatic system with high priority is higher than or equal to the upper limit of the set air pressure range of the air cylinder of the pneumatic system with high priority, then It is determined that the pneumatic system with high priority does not need to start the air compressor, and the charging path of the air cylinder of the pneumatic system with high priority is controlled to close.
  • the specific function and processing of the determining unit 102 refer to step S430.
  • the pressure switch has the function of maintaining a certain pressure of the air tank (the certain pressure is between two switching air pressures such as switching air pressure b p sb and switching air pressure a p sa ).
  • the air supply processing unit receives the air compressor temperature sensor signal and the pressure switch signal of each air system.
  • the pressure switch has the function of maintaining a certain pressure of the air cylinder (the certain pressure is between two switching air pressures such as switching air pressure b p sb and Switching air pressure between ap and sa ).
  • the air compressor needs to be turned on for charging.
  • the determining unit 102 may be specifically configured to determine the priority of the N pneumatic systems supplied by the air compressor as a high priority if the pneumatic system with high priority needs to start the air compressor, and there is no need to determine Among the N pneumatic systems supplied by the air compressor, whether the pneumatic system with a priority lower than the priority needs to start the air compressor. See also step S320 for specific functions and processing of the determining unit 102.
  • the determining unit 102 may be specifically configured to determine that the priority of the N pneumatic systems supplied by the air compressor is lower than the priority if the pneumatic system with high priority does not need to start the air compressor, and determine Among the N pneumatic systems supplied by the air compressor, whether the pneumatic system with a priority lower than the priority needs to start the air compressor, the specific function and processing of the determining unit 102 also refer to step S330. And so on.
  • Switching air pressure a corresponds to the turning point from low pressure to high pressure (also called the closing point of the pressure switch). After switching air pressure a, the state of the pressure switch is in the closed state, that is, the air compressor does not need to be stored again.
  • the pump is inflated.
  • Switching air pressure b corresponds to the turning point from high pressure to low pressure (also called the opening point of the pressure switch). After switching air pressure a, the state of the pressure switch is closed.
  • the pressure switch on the air reservoir of each pneumatic system can be expressed as S 1 ⁇ S 4 , so: Priority: S 1 >S 2 >S 3 >S 4 Switching air pressure: P sa1 ⁇ P sa2 ⁇ P sa3 ⁇ P sa4 .
  • the switching air pressure b is to meet the minimum air pressure requirements of their work, and the switching air pressure a is set differently according to the priority level of the pneumatic system.
  • the priority of the pressure switches of the service brake system, parking brake system, air suspension system, and door control system will decrease sequentially, then: S 1 > S 2 > S 3 > S 4 , then select according to the characteristics of the pneumatic system
  • the switching air pressure value satisfies the relationship of p sa1 ⁇ p sa2 ⁇ p sa3 ⁇ p sa4 .
  • control unit 104 can be set to control the on or off state of the air compressor according to the allowable operating time of the air compressor, combined with the priority of N pneumatic systems, and the air compressor In the open state, control the air supply state of the air compressor to N pneumatic systems.
  • control unit 104 For specific functions and processing of the control unit 104, refer to step S120.
  • the safe and stable operation of the air compressor can be ensured, the number of frequent start and stop of the air compressor can be reduced, and the entire pneumatic system can be improved
  • the reliability of the system ensures the working status of different priority systems and the working life of the air compressor. It can solve the problem of frequent opening of the air compressor, realize the safe and energy-saving air supply of the air compressor (such as the state of the air compressor), and realize the reliable protection of the priority of the pneumatic system.
  • the air compressor temperature limit model and the pressure switch priority response model of different pneumatic systems to optimize the air supply logic of the air supply system so that it is always in a lower load response state, such as: using different pneumatic systems
  • the pressure switch setting combined with the temperature model of the air compressor, provides air supply functions with different priority levels for different pneumatic systems, reducing the number of normal start and stop times of the air compressor. It also ensures that the air compressor works in a safe operating range, avoids failures and stops, and solves the frequent start and stop of the air compressor's air supply system, and the temperature rise causes the air compressor to break down and other problems, and improve the safety and reliability of the supply system.
  • control unit 104 controlling the on state or off state of the air compressor may include:
  • the control unit 104 may also be specifically configured to determine whether the allowable operating time of the air compressor is greater than a set operating time threshold. For specific functions and processing of the control unit 104, refer to step S510.
  • the control unit 104 can also be specifically set to not send out the current air compressor when the air compressor needs to be turned on or does not need to be turned on if the allowable operating time of the air compressor is greater than the set operating time threshold.
  • step S520 For specific functions and processing of the control unit 104, refer to step S520.
  • the control unit 104 may be specifically configured to control the air compressor to be in a shutdown state if the allowable operating time of the air compressor is less than or equal to the set operating time threshold, such as controlling the air compressor when the air compressor is in the on state.
  • the compressor is stopped, or the air compressor is controlled to remain in the stopped state when the air compressor is in the stopped state, and a reminder message that the current temperature of the air compressor is higher than the set temperature threshold is issued.
  • step S530 For specific functions and processing of the control unit 104, refer to step S530. For example: if the allowable operating time t TH of the air compressor approaches 0, the compressor must be stopped immediately and an alarm signal should be issued. When the temperature of the compressor drops, the signal from the air compressor is received again to continue working to ensure safe and stable operation of the compressor.
  • control unit 104 controls the air supply state of the air compressor to the N pneumatic systems, which may include any of the following control situations.
  • the control unit 104 can also be specifically set to allow the air supply path of the air compressor to be prioritized when the pneumatic system with the highest priority among the N pneumatic systems needs to start the air compressor.
  • the air reservoir of the first part of the pneumatic system whose priority is lower than or equal to this priority is allowed to inflate, that is, the air supply pipeline of the air compressor is allowed to charge the air reservoir of the first part of the pneumatic system whose priority is lower than or equal to this priority among the N pneumatic systems. Inflate.
  • the air compressor inflates all the air cylinders of the pneumatic system through the air supply pipeline, and the air cylinder with the lower priority level It can be inflated "by the way", and the air compressor responds more to high-priority air reservoir inflation requests. In this way, the air cylinder with a low priority will not send out a request signal if it is maintained in a larger air pressure range, and the more sluggish air tank is guaranteed to be within the allowable air pressure range.
  • the control unit 104 can also be specifically configured to allow the air supply path of the air compressor to be adjusted to N when the pneumatic system with high priority does not need to start the air compressor among the N pneumatic systems.
  • the air reservoir of the second part of the pneumatic system with priority lower than this priority in the pneumatic system is allowed to inflate, that is, the air supply line of the air compressor is allowed to charge the second part of the pneumatic system with priority lower than this priority.
  • the air cylinder of the system is inflated.
  • the third control situation the control unit 104 can be specifically configured to control the air compressor to stop when all the pneumatic systems in the N pneumatic systems do not need to start the air compressor, that is, control the air compressor to be stopped by The power-on state changes to the shutdown state.
  • the air compressor in the process of controlling the start and stop of the air compressor, when the high priority system does not have a charging request, the air compressor will be relatively idle to meet the charging request of the low priority pneumatic system air cylinder, so as to make the air supply
  • the system is running in a low-load start-stop state of the design state.
  • the processing unit reads the current temperature value, and calculates the maximum allowable working time t TH according to formula (1), when t TH is greater than 0 (or the minimum time of an air compressor shutdown time t OFF , t OFF is greater than or equal to 0) , It is believed that the air compressor can continue to work, so the air compressor warning signal is not issued (or cleared). At the same time, it accepts the inflating request instruction of the air cylinder. According to the priority of different pneumatic systems, read the signal value of the pressure switch in sequence, from high priority to low priority, when any pressure switch requests inflation, the air compressor is turned on and the cycle is repeated. Otherwise, keep the air compressor stopped and cycle.
  • the operation process of the air compressor can be controlled.
  • the normal and safe operation of each pneumatic system can be ensured, and on the other hand, the energy-saving operation of the air compressor can be controlled.
  • the technical solution of the present disclosure is used to monitor the operating status of the air compressor in real time through the temperature sensor of the air compressor, and the current temperature and the limit working temperature are used to calculate the time for the air compressor to reach the limit working temperature, which is used as an air compressor Allows the judgment value of the work to realize the safe and energy-saving air supply of the air compressor.
  • a vehicle corresponding to the air supply control device is also provided.
  • the vehicle may include: the air supply control device described above.
  • the solution of the present disclosure provides an air compressor energy-saving air supply system and air supply method, which is suitable for an air supply system with more than or equal to 1 pneumatic system, and can be based on the air compressor supply
  • select pressure switches such as pressure relays
  • select pressure switches that switch air pressure, and monitor its operating status in real time through the air compressor temperature sensor, and use the current temperature and the limit working temperature to calculate the air
  • the time for the compressor to reach the limit working temperature is used as the judgement value for the air compressor to work.
  • the safe and stable operation of the air compressor can be ensured, the number of frequent start and stop of the air compressor can be reduced, the reliability of the entire pneumatic system can be improved, and the working status and air condition of different priority systems can be guaranteed.
  • the working life of the compressor it can solve the problem of frequent opening of the air compressor, realize the safe and energy-saving air supply of the air compressor (such as the state of the air compressor), and realize the reliable protection of the priority of the pneumatic system.
  • the added air compressor control part is used as an air compressor integrated system, which does not need to communicate and interconnect with the vehicle system, greatly improving its independent working ability , While reducing costs, improving portability and practicality.
  • the solution of the present disclosure utilizes the air compressor temperature limit model and the priority response model of the pressure switch of different pneumatic systems to optimize the air supply logic of the air supply system so that it is always in a lower load response. It solves the problems of frequent start and stop of the air supply system of the air compressor, as well as the failure and shutdown of the air compressor caused by temperature rise, and improves the safety and reliability of the supply system.
  • the overall system scheme design and control method in addition to the use of existing hardware resources, the added air compressor control part is used as an air compressor integrated system, which does not need to communicate and interconnect with the vehicle system, which reduces the cost of the air supply system. At the same time, it greatly improves its independent and reliable work ability, and enhances the portability and practicability of the system scheme.
  • Figure 7 shows the compressed air supply system and various pneumatic systems.
  • the system shown in Figure 7 includes: air spring 1, height sensor 2, 2/2 solenoid valve 3, 3/2 solenoid valve 4, exhaust valve 5, muffler 6, and the first pressure switch (such as the air reservoir) Pressure switch) 71, the second pressure switch (such as the pressure switch at the service brake system) 72, the third pressure switch (such as the pressure switch at the parking brake system) 73, the fourth pressure switch (such as the door control system Pressure switch at the location) 74, one-way valve 8, four-way valve 9, air dryer 10, air filter 11, compressor 12, temperature sensor 13, motor 14, energy center (ie, air supply unit) 15.
  • the first pressure switch such as the air reservoir
  • the second pressure switch such as the pressure switch at the service brake system
  • the third pressure switch such as the pressure switch at the parking brake system
  • the fourth pressure switch such as the door control system Pressure switch at the location
  • one-way valve 8 four-way valve 9
  • air dryer 10 air filter 11, compressor 12, temperature sensor 13, motor 14, energy center (ie,
  • the four-way valve that is, the four-circuit protection valve
  • various pneumatic systems such as air supply lines connected to the air suspension system, service brake system, and parking brake System and door control system, etc.
  • an energy center for example: air supply unit
  • the center or unit uses different pressure switch settings of different pneumatic systems, combined with the temperature model of the air compressor, to provide different pneumatic systems with different priority levels of air supply functions, Reduce the number of normal start and stop of the air compressor; and ensure that the air compressor works in a safe operating range to avoid failure and shutdown.
  • the air suspension system is taken as an example of a pneumatic system.
  • ECU is an electronic control unit.
  • the air enters the air compressor through the air filter from the air inlet.
  • the air compressor converts the low-pressure gas into the high-pressure gas under the drive of the motor. After passing through the air dryer, it is supplied to the air compressor through the four-way valve (ie, four-circuit protection valve) Air reservoir for air spring suspension system.
  • the air supply processing unit can be an independent or integrated signal processing and control unit on the air compressor, that is, the air supply processing unit can exist independently or integrated into the air compressor or other ECU functional modules.
  • the air supply processing unit receives the air compressor temperature sensor signal and the pressure switch signal of each air circuit system.
  • pressure switch also refers to pressure relay, pressure control switch, pressure sensor and so on.
  • Air compressors are mostly compressors that work at a fixed frequency and rated power. Frequent start and stop or long hours of work will cause the temperature of the compressor to rise.
  • the air compressor installed on the chassis of the vehicle has a harsh working environment, and it is easy to work with high temperature and high load for a long time. A failure occurred, causing the entire gas supply system to be paralyzed.
  • the temperature sensor arranged on the cylinder head of the compressor can record the current temperature T c , and calculate the maximum allowable working time t TH of the compressor according to the limit temperature T LMT , which satisfies the following formula:
  • the compressor must be stopped immediately and an alarm signal should be issued.
  • the signal from the air compressor is received again to continue working to ensure the safe and stable operation of the compressor.
  • FIG. 8 shows the switching logic of the pressure switch.
  • the abscissa p represents the air pressure
  • the ordinate state represents the state of the pressure switch.
  • Switching air pressure a corresponds to the turning point from low pressure to high pressure (also called the closing point of the pressure switch). After switching air pressure a, the state of the pressure switch is in closed (closed state), that is, the air compressor does not need Then inflate the air reservoir; switching air pressure b corresponds to the turning point from high pressure to low pressure (also called the opening point of the pressure switch).
  • the state of the pressure switch is in closed (closed) Status); if there are four pneumatic systems, the pressure switch on the air reservoir of each pneumatic system can be expressed as S 1 ⁇ S 4 , so: Priority Level: S 1 >S 2 >S 3 >S 4 , Switching Pressure: P sa1 ⁇ P sa2 ⁇ P sa3 ⁇ P sa4 .
  • the pressure switch has the function of maintaining a certain pressure of the air tank (the certain pressure is between two switching air pressures such as switching air pressure b p sb and switching air pressure a p sa ), when the air tank air pressure is lower than the switching air pressure b p sb
  • the switching air pressure b is to meet the minimum air pressure requirements of their work, and the switching air pressure a is set differently according to the priority level of the pneumatic system in the solution of the present disclosure.
  • the priority of the pressure switch of the service brake system, parking brake system, air suspension system, and door control system is reduced sequentially, then: S 1 > S 2 > S 3 > S 4 , then select according to the characteristics of the pneumatic system
  • the switching air pressure value satisfies the relationship of p sa1 ⁇ p sa2 ⁇ p sa3 ⁇ p sa4 .
  • the air compressor When controlling the start and stop of the air compressor, when the high priority air pressure needs to start the air compressor, the air compressor inflates all the air cylinders of the pneumatic system through the air supply pipeline, and the air cylinder with the lower priority level can be "incidentally" "Inflate, the air compressor responds more to high-priority air reservoir inflation requests. In this way, the air cylinder with a low priority will not send out a request signal if it is maintained in a larger air pressure range, and the more sluggish air tank is guaranteed to be within the allowable air pressure range.
  • the air compressor When the high-priority system does not have a charging request, the air compressor will be relatively idle to meet the charging request of the low-priority pneumatic system air cylinder, so that the air supply system is in the low-load start-stop state of the design state.
  • Fig. 9 is a working flow chart of the air supply processing unit of the air compressor, and referring to the example shown in Fig. 9 below, the air supply process of the entire air supply system will be exemplified.
  • the processing unit reads the current temperature value and calculates the maximum allowable working time t TH according to formula (1).
  • t TH is greater than 0 (or a pneumatic The minimum time of shutdown time t OFF , t OFF is greater than or equal to 0)
  • WARNING air compressor warning signal
  • the air storage cylinder's charging request command is accepted.
  • the priority of different pneumatic systems read the signal value of the pressure switch in sequence, from high priority to low priority, when any pressure switch requests inflation, the air compressor will be turned on and cycled; otherwise, the air compressor will be kept shut down State, and loop.
  • the air supply system as shown in Figure 10 is divided into three parts.
  • the first part is the signal input part
  • the second part is the central processing part
  • the third part is the execution output part.
  • the technical solution of the present disclosure is adopted.
  • the pressure switch that switches the air pressure is selected, and the air compressor temperature sensor is used to monitor its operating status in real time.
  • Temperature and limit operating temperature calculate the time for the air compressor to reach the limit operating temperature, which is used as the judgment value of the air compressor's allowable work, which solves the frequent start and stop of the air compressor system, and the temperature rise causes the air compressor to fail and stop.
  • Other issues have improved the safety and reliability of the supply system.
  • a storage medium corresponding to the air supply control method is also provided.
  • the storage medium may include: a plurality of instructions are stored in the storage medium; and the plurality of instructions are configured to be loaded by a processor and execute the above-mentioned gas supply control method.
  • the technical solution of the present disclosure is used to optimize the air supply logic of the air supply system by using the air compressor temperature limit model and the pressure switch priority response model of different pneumatic systems to keep it at a lower load. Respond to the state to avoid frequent start and stop of the air compressor supply system, as well as problems such as the failure of the air compressor caused by temperature rise, and improve the safety and reliability of the supply system.
  • a vehicle corresponding to the air supply control method may include: a processor configured to execute a plurality of instructions; a memory configured to store a plurality of instructions; wherein the plurality of instructions are configured to be stored by the memory and executed by the processor Load and execute the gas supply control method described above.
  • the technical solution of the present disclosure can ensure the safe and stable operation of the air compressor, reduce the frequency of frequent start and stop of the air compressor, and improve the reliability of the entire pneumatic system by allowing the running time and the priority of the system where the pressure switch is located It guarantees the working status of different priority systems and the working life of the air compressor; it can solve the problem of frequent opening of the air compressor, realize the safe and energy-saving air supply of the air compressor, and realize the reliable protection of the priority of the pneumatic system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

一种供气控制方法、装置、存储介质及车辆，该方法包括：确定车辆的空气压缩机(12)的允许运行时间，并确定空气压缩机(12)供气的N个气动系统的优先级；其中，N为自然数；根据空气压缩机(12)的允许运行时间，并结合N个气动系统的优先级，控制空气压缩机(12)的开机状态或停机状态，以及在空气压缩机(12)开启状态下，控制空气压缩机(12)对N个气动系统的供气状态。具有提升空气压缩机的控制可靠性的效果。

Description

一种供气控制方法、装置、存储介质及车辆
本公开要求于2019年12月04日提交中国专利局、申请号为201911228795.0、发明名称为“一种供气控制方法、装置、存储介质及车辆”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开属于车辆技术领域，具体涉及一种供气控制方法、装置、存储介质及车辆，尤其涉及一种空压机节能供气方法、装置、存储介质及车辆。
背景技术
空气压缩机(空压机)是压缩空气的供应设备，是车上气动系统的动力源。商用车和部分安装有空气悬架的乘用车上，都会使用压缩空气作为制动系统、空气弹簧悬架或门控等系统的动力源。
其中，空气弹簧悬架设备，在商用车和乘用车上都是使用气源的气动系统设备。在乘用车尤其是越野车型或全路况车型中使用普遍，而在商用车上不管是普通高度阀控制的水平调节装置，还是具有高度传感器和电子控制单元的水平调节装置，都需要充足的气源动力保证系统运行。
根据各气动系统对压缩空气的响应要求，设置有不同容积和压强的储气筒，储气筒的充气和停止充气由储气筒上的压力开关来控制。空气压缩机将根据储气筒的充气需求，源源不断地供应压缩空气。商用车管路系统压力大约10bar，乘用车因安装空间小，电控空气悬架系统压力能到18-20bar，空气压缩机的故障，会导致整个车上空气系统瘫痪，严重制约整车使用可靠性，因此对空气压缩机的优化使用显得尤为重要。
目前空压机或者无控制系统，仅仅依靠储气筒的压力开关直接控制其启停，造成各种气动系统的充气需求频繁启停；或者控制系统过于复杂，难以集成，造成供气系统成本增加的同时可靠性并未得到提升。
上述内容仅用于辅助理解本公开的技术方案，并不代表承认上述内容是现有技术。
发明内容
本公开的目的在于，针对上述缺陷，提供一种供气控制方法、装置、存储介质及车辆，以解决空气压缩机的控制可靠性差的问题，达到提升空气压缩机的控制可靠性的效果。
本公开提供一种供气控制方法，包括：确定车辆的空气压缩机的允许运行时间，并确定空气压缩机供气的N个气动系统的优先级；其中，N为自然数；根据空气压缩机的允许运行时间，并结合N个气动系统的优先级，控制空气压缩机的开机状态或停机状态，以及在空气压缩机在开启状态下，控制空气压缩机对N个气动系统的供气状态。
在一些实施方式中，确定车辆的空气压缩机的允许运行时间，包括：获取空气压缩机的当前温度；将当前温度与设定的极限温度之间的差值，与设定的平均温升梯度之间的比值，作为空气压缩机的允许运行时间。
在一些实施方式中，确定空气压缩机供气的N个气动系统的优先级，包括：确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机；若该优先级高的气动系统需要启动空气压缩机，则不需要确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机；若该优先级高的气动系统不需要启动空气压缩机，则确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机。
在一些实施方式中，确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机，包括：获取空气压缩机供气的N个气动系统中优先级高的气动系统的储气筒的气压信息；若该优先级高的气动系统的储气筒的气压信息，低于或等于该优先级高的气动系统的储气筒的设定气压范围的下限，则确定该优先级高的气动系统需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路开通；若该优先级高的气动系统的储气筒的气压信息，高于或等于该优先级高的气动系统的储气筒的设定气压范围的上限，则确定该优先级高的气动系统不需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路关闭。
在一些实施方式中，控制空气压缩机的开机状态或停机状态，包括：确定 空气压缩机的允许运行时间是否大于设定的运行时间阈值；若空气压缩机的允许运行时间大于设定的运行时间阈值，则不发出空气压缩机的当前温度高于设定的温度阈值的提醒消息，和/或控制空气压缩机处于开机状态；若空气压缩机的允许运行时间小于或等于设定的运行时间阈值，则控制空气压缩机处于停机状态，并发出空气压缩机的当前温度高于设定的温度阈值的提醒消息。
在一些实施方式中，控制空气压缩机对N个气动系统的供气状态，包括：在N个气动系统中优先级高的气动系统需要启动空气压缩机的情况下，允许空气压缩机的供气通路对优先级低于或等于该优先级的第一部分气动系统的储气筒进行充气；或者，在N个气动系统中优先级高的气动系统不需要启动空气压缩机的情况下，允许空气压缩机的供气通路对N个气动系统中优先级低于该优先级的第二部分气动系统的储气筒进行充气；或者，在N个气动系统中所有气动系统均不需要启动空气压缩机的情况下，控制空气压缩机停机。
与上述方法相匹配，本公开另一方面提供一种供气控制装置，包括：确定单元，被设置为确定车辆的空气压缩机的允许运行时间，并确定空气压缩机供气的N个气动系统的优先级；其中，N为自然数；控制单元，被设置为根据空气压缩机的允许运行时间，并结合N个气动系统的优先级，控制空气压缩机的开机状态或停机状态，以及在空气压缩机在开启状态下，控制空气压缩机对N个气动系统的供气状态。
在一些实施方式中，所述确定单元确定车辆的空气压缩机的允许运行时间，包括：获取空气压缩机的当前温度；将当前温度与设定的极限温度之间的差值，与设定的平均温升梯度之间的比值，作为空气压缩机的允许运行时间。
在一些实施方式中，所述确定单元确定空气压缩机供气的N个气动系统的优先级，包括：确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机；若该优先级高的气动系统需要启动空气压缩机，则不需要确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机；若该优先级高的气动系统不需要启动空气压缩机，则确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机。
在一些实施方式中，所述确定单元确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机，包括：获取空气压缩机供气的N个气动系统中优先级高的气动系统的储气筒的气压信息；若该优先级高的气动系统的储气筒的气压信息，低于或等于该优先级高的气动系统的储气筒的设定气压范围的下限，则确定该优先级高的气动系统需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路开通；若该优先级高的气动系统的储气筒的气压信息，高于或等于该优先级高的气动系统的储气筒的设定气压范围的上限，则确定该优先级高的气动系统不需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路关闭。
在一些实施方式中，所述控制单元控制空气压缩机的开机状态或停机状态，包括：确定空气压缩机的允许运行时间是否大于设定的运行时间阈值；若空气压缩机的允许运行时间大于设定的运行时间阈值，则不发出空气压缩机的当前温度高于设定的温度阈值的提醒消息，和/或控制空气压缩机处于开机状态；若空气压缩机的允许运行时间小于或等于设定的运行时间阈值，则控制空气压缩机处于停机状态，并发出空气压缩机的当前温度高于设定的温度阈值的提醒消息。
在一些实施方式中，所述控制单元控制空气压缩机对N个气动系统的供气状态，包括：在N个气动系统中优先级高的气动系统需要启动空气压缩机的情况下，允许空气压缩机的供气通路对优先级低于或等于该优先级的第一部分气动系统的储气筒进行充气；或者，在N个气动系统中优先级高的气动系统不需要启动空气压缩机的情况下，允许空气压缩机的供气通路对N个气动系统中优先级低于该优先级的第二部分气动系统的储气筒进行充气；或者，在N个气动系统中所有气动系统均不需要启动空气压缩机的情况下，控制空气压缩机停机。
与上述装置相匹配，本公开再一方面提供一种车辆，包括：以上所述的供气控制装置。
与上述方法相匹配，本公开再一方面提供一种存储介质，包括：所述存储 介质中存储有多条指令；所述多条指令，被设置为由处理器加载并执行以上所述的供气控制方法。
与上述方法相匹配，本公开再一方面提供一种车辆，包括：处理器，被设置为执行多条指令；存储器，被设置为存储多条指令；其中，所述多条指令，被设置为由所述存储器存储，并由所述处理器加载并执行以上所述的供气控制方法。
本公开的方案，通过根据空压机供气的各个气动系统优先级(对整车安全而言)，选用不同切换气压的压力开关，保障空压机安全稳定工作、降低空压机频繁启停的次数，实现气动系统的优先级可靠保障。
在一些实施方式中，本公开的方案，通过空压机温度传感器实时监测其运行状态，利用当前温度和极限工作温度，计算空压机到达极限工作温度的时间，用以作为空压机允许工作的判断值，实现空压机的安全节能供气。
在一些实施方式中，本公开的方案，通过根据空压机供气的各个气动系统优先级，选用不同切换气压的压力开关，并通过空压机温度传感器实时监测其运行状态，利用当前温度和极限工作温度，计算空压机到达极限工作温度的时间，用以作为空压机允许工作的判断值，解决了空压机供气系统频繁启停，以及温升导致空压机故障停机等问题，提升了供给系统的安全可靠性。
在一些实施方式中，本公开的方案，通过利用空压机温度极限模型，和不同气动系统压力开关优先等级响应模型，优化供气系统的供气逻辑，使其始终处于较低负荷的响应状态，避免空压机供气系统频繁启停、以及温升导致空压机故障停机等问题，提升了供给系统的安全可靠性。
在一些实施方式中，本公开的方案，通过允许运行时间结合压力开关所在系统优先级，能够保障空压机安全稳定工作、降低空压机频繁启停的次数，提升整个气动系统的可靠性、保证了不同优先级系统的工作状态和空压机的工作寿命；可以解决空压机的频繁开启问题，实现空压机的安全节能供气，实现气动系统的优先级可靠保障。
由此，本公开的方案，通过根据空压机允许运行时间，结合空压机供气的 各个气动系统的压力开关所在气动系统的优先级，选用不同气动系统中切换气压的压力开关，解决空气压缩机的控制可靠性差的问题，达到提升空气压缩机的控制可靠性的效果。
本公开的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本公开而了解。
下面通过附图和实施例，对本公开的技术方案做进一步的详细描述。
附图说明
图1为本公开的供气控制方法的一实施例的流程示意图；
图2为本公开的方法中确定车辆的空气压缩机的允许运行时间的一实施例的流程示意图；
图3为本公开的方法中确定空气压缩机供气的N个气动系统的优先级的一实施例的流程示意图；
图4为本公开的方法中确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机的一实施例的流程示意图；
图5为本公开的方法中控制空气压缩机的开机状态或停机状态的一实施例的流程示意图；
图6为本公开的供气控制装置的一实施例的结构示意图；
图7为本公开的车辆的一实施例的空压机和气动系统的供气结构示意图(以空气弹簧悬架为例)；
图8为本公开的车辆的一实施例的不同优先级压力开关状态切换示意图；
图9为本公开的车辆的一实施例的空压机供气系统的供气流程示意图；
图10为本公开的车辆的一实施例的空压机供气系统的结构示意图。
结合附图，本公开实施例中附图标记如下：
1-空气弹簧；2-高度传感器；3-2/2电磁阀；4-3/2电磁阀；5-排气阀；6-消音器；71-第一压力开关(如储气筒处的压力开关)；72-第二压力开关(如行车制动系统处的压力开关)；73-第三压力开关(如驻车制动系统处的压力开关)；74-第四压力开关(如门控系统处的压力开关)；8-单向阀；9-四通阀；10-空气干燥器；11-空气滤清器；12-压缩机；13-温度传感器；14-电机；15- 能量中心(即空气供给单元)；102-确定单元；104-控制单元。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合本公开具体实施例及相应的附图对本公开技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
根据本公开的实施例，提供了一种供气控制方法，如图1所示本公开的方法的一实施例的流程示意图。该供气控制方法可以包括：步骤S110和步骤S120。
在步骤S110处，确定车辆的空气压缩机的允许运行时间，并确定空气压缩机供气的N个气动系统的优先级。其中，N为自然数。例如：N个气动系统，可以包括：空气悬架系统、行车制动系统、驻车制动系统和门控系统等。其中，N个气动系统的优先级，可以是设定的N个气动系统的运行先后顺序。
在一些实施方式中，可以结合图2所示本公开的方法中确定车辆的空气压缩机的允许运行时间的一实施例流程示意图，进一步说明步骤S110中确定车辆的空气压缩机的允许运行时间的具体过程，可以包括：步骤S210和步骤S220。
步骤S210，获取空气压缩机的当前温度。例如：通过设置在空气压缩机处的温度传感器采集空气压缩机的当前温度。
步骤S220，将当前温度与设定的极限温度之间的差值，与设定的平均温升梯度之间的比值，作为空气压缩机的允许运行时间。
例如：布置在压缩机汽缸盖的温度传感器，能够实施记录当前温度T c，根据极限温度T LMT，计算出空气压缩机的允许运行时间，即空气压缩机最长允许工作的时间t TH，满足该公式：t TH＝(T LMT-T c)/平均温升梯度。这样，针对大于或等于1个气动系统的供气系统，可以根据空压机供气的各个气动系统优先级(对整车安全而言)，选用不同切换气压的压力开关(如压力继电器)，并通过空压机温度传感器实时监测其运行状态，利用当前温度和极限工作温度，计算空压机到达极限工作温度的时间，用以作为空压机允许工作的判断值。其中， 空压机关机时间最小时间t OFF是指定零部件极限工况的持续时间耗尽时间t TH前的任意大于等于0小的时间设定，完全＝0，则有空压机故障停机的风险，设定过大，则会造成温度敏感性高，影响空压机正常开关机。
由此，通过基于空气压缩机的当前温度确定其允许运行时间，可以在保证空气压缩机安全的情况下才允许其运行，有利于提升空气压缩机运行的可靠性和安全性。
在一些实施方式中，可以结合图3所示本公开的方法中确定空气压缩机供气的N个气动系统的优先级的一实施例流程示意图，进一步说明步骤S110中确定空气压缩机供气的N个气动系统的优先级的具体过程，可以包括：步骤S310至步骤S330。
步骤S310，确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机。
在一些实施方式中，结合图4所示本公开的方法中确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机的一实施例流程示意图，进一步说明步骤S310中确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机的具体过程，可以包括：步骤S410至步骤S430。
步骤S410，获取空气压缩机供气的N个气动系统中优先级高的气动系统的储气筒的气压信息。
步骤S420，若该优先级高的气动系统的储气筒的气压信息，低于或等于该优先级高的气动系统的储气筒的设定气压范围的下限，则确定该优先级高的气动系统需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路开通。
步骤S430，若该优先级高的气动系统的储气筒的气压信息，高于或等于该优先级高的气动系统的储气筒的设定气压范围的上限，则确定该优先级高的气动系统不需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路关闭。
例如：压力开关具有维持储气筒一定压力的作用(该一定压力介于两个切换气压如切换气压b p sb和切换气压a p sa之间)，当储气筒气压低于切换气压b p sb时，开关信号为S i＝1，需要打开空压机给储气筒充气。高于切换气压a p sa时开关信号为S i＝0，需要关闭空压机停止充气。
例如：供气处理单元接收空压机温度传感器信号、以及各气路系统的压力开关信号，压力开关具有维持储气筒一定压力的作用(该一定压力介于两个切换气压如切换气压b p sb和切换气压a p sa之间)，当储气筒气压低于切换气压b p sb时，开关信号为S i＝1，需要打开空压机充气。高于切换气压a p sa时开关信号为S i＝0，需要关闭空压机停止充气。
由此，通过基于各气动系统的储气筒的气压信息确定其是否需要开启空气压缩机，保证了各气动系统的正常和安全运行。
步骤S320，若该优先级高的气动系统需要启动空气压缩机，则确定空气压缩机供气的N个气动系统的优先级为高优先级，并不需要确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机。
步骤S330，若该优先级高的气动系统不需要启动空气压缩机，则确定空气压缩机供气的N个气动系统的优先级低于该优先级，并确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机，依次类推。
例如：切换气压a，对应的是从低压到高压的转折点(也叫压力开关的关闭点)，超过切换气压a后，压力开关的状态，就处于关闭状态，即空压机无需再给该贮气筒充气。切换气压b，对应的是从高压降低到低压的转折点(也叫压力开关的打开点)，超过切换气压a后，压力开关的状态，就处于关闭状态。
例如：如果有四个气动系统，每个气动系统的贮气筒上的压力开关可以表示为S 1～S 4，于是：优先等级：S 1>S 2>S 3>S 4切换气压：P sa1≤P sa2≤P sa3≤P sa4。其中，不同气动系统的储气筒，切换气压b为满足其工作的最低气压要求，而切换气压a，则根据气动系统的优先等级不同而设置不同。如：行车制动系统、驻车制动系统、空气悬架系统、门控系统的压力开关优先级依次下降，则：S 1>S 2>S 3>S 4，则根据气动系统特性，选择切换气压值满足p sa1≤p sa2≤p sa3≤p sa4的关系。
由此，通过根据各气动系统的优先级确定其是否需要开启空气压缩机，进而根据各气动系统的优先级及其对空气压缩机的开启需求控制各气动系统的储气通路及空气压缩机的供气通路的开启或关闭，保证了各气动系统的正常运行，也避免了能源浪费。
在步骤S120处，根据空气压缩机的允许运行时间，并结合N个气动系统的优先级，控制空气压缩机的开机状态或停机状态，以及在空气压缩机在开启状态下，控制空气压缩机对N个气动系统的供气状态。
例如：针对大于或等于1个气动系统的供气系统，通过允许运行时间结合压力开关所在系统优先级，能够保障空压机安全稳定工作、降低空压机频繁启停的次数，提升整个气动系统的可靠性、保证了不同优先级系统的工作状态和空压机的工作寿命。可以解决空压机的频繁开启问题，实现空压机的安全节能供气(如空压机的状态预警)，实现气动系统的优先级可靠保障。
例如：利用空压机温度极限模型，和不同气动系统压力开关优先等级响应模型，优化了供气系统的供气逻辑，使其始终处于较低负荷的响应状态，如：利用不同气动系统的不同压力开关设定，结合空压机的温度模型，为不同气动系统提供优先等级不同的供气功能，减少空压机正常启停次数。并保障空压机在安全的运行范围工作，避免故障停机，解决了空压机供气系统频繁启停，以及温升导致空压机故障停机等问题，提升了供给系统的安全可靠性。
由此，通过根据空气压缩机的允许运行时间和N个气动系统的优先级，控制空气压缩机的开机状态或停机状态、以及控制空气压缩机对N个气动系统的供气状态，可以在保证安全的情况下实现节能控制，且控制方式方便。
在一些实施方式中，可以结合图5所示本公开的方法中控制空气压缩机的开机状态或停机状态的一实施例流程示意图，进一步说明步骤S120中控制空气压缩机的开机状态或停机状态的具体过程，可以包括：步骤S510至步骤S530。
步骤S510，确定空气压缩机的允许运行时间是否大于设定的运行时间阈值。
步骤S520，若空气压缩机的允许运行时间大于设定的运行时间阈值，则在空气压缩机需要开机或不需要开机的情况下均不发出空气压缩机的当前温 度高于设定的温度阈值的提醒消息，和/或在空气压缩机需要开机的情况下控制空气压缩机处于开机状态，如在空气压缩机处于停机状态而需要开机的情况下控制空气压缩机开机、或在空气压缩机处于开机状态时控制空气压缩机保持在开机状态。
步骤S530，若空气压缩机的允许运行时间小于或等于设定的运行时间阈值，则控制空气压缩机处于停机状态，如在空气压缩机处于开机状态时控制空气压缩机停机、或在空气压缩机处于停机状态时控制空气压缩机保持在停机状态，并发出空气压缩机的当前温度高于设定的温度阈值的提醒消息。例如：如果空气压缩机的允许运行时间t TH趋近于0，即必须立即停止压缩机的工作，并发出报警信号。待压缩机温度回落，重新接收空压机的信号继续工作，保证压缩机安全平稳运行。
由此，通过在空气压缩机的允许运行时间大于其允许时间阈值的情况下才允许其运行，可以保证空气压缩机运行的安全性。
在一些实施方式中，步骤S120中控制空气压缩机对N个气动系统的供气状态，可以包括以下任一种控制情形。
第一种控制情形：在N个气动系统中优先级高的气动系统需要启动空气压缩机的情况下，允许空气压缩机的供气通路对优先级低于或等于该优先级的第一部分气动系统的储气筒进行充气，即允许空气压缩机的供气管路对N个气动系统中优先级低于或等于该优先级的第一部分气动系统的储气筒进行充气。
例如：在控制空压机启停的过程中，当优先级高的气压，需要启动空压机时，空压机通过供气管路对所有气动系统的储气筒进行充气，优先等级低的储气筒则可以“顺带”充气，空压机更多响应高优先等级的储气筒充气请求。这样优先级低的储气筒，维持在较大的气压范围内不会发出请求信号，较为迟钝的保证在允许气压范围内。
第二种控制情形：在N个气动系统中优先级高的气动系统不需要启动空气压缩机的情况下，允许空气压缩机的供气通路对N个气动系统中优先级低于该优先级的第二部分气动系统的储气筒进行充气，即允许空气压缩机的供气管路对N个气动系统中优先级低于该优先级的第二部分气动系统的储气筒进行充气。
第三种控制情形：在N个气动系统中所有气动系统均不需要启动空气压缩机的情况下，控制空气压缩机停机，即控制空气压缩机由开机状态转为停机状态。
例如：在控制空压机启停的过程中，当高优先级的系统没有充气请求时，而空压机也会较为空闲地满足低优先等级的气动系统储气筒的充气请求，从而使得供气系统处于设计状态的低负荷启停状态运行。
例如：处理单元读取当前温度值，并根据公式(1)计算出最长允许工作时间t TH，当t TH大于0(或者一个空压机关机时间最小时间t OFF，t OFF大于等于0)，认为空压机是可以继续工作的，于是不发出(或清除)空压机预警信号。同时接受储气筒的充气请求指令。依据不同气动系统的优先级，依次读取压力开关的信号值，从高优先级到低优先级，任一压力开关请求充气时，则开启空压机，并循环。否则，保持空压机停机状态，并循环。
由此，通过结合各气动系统的优先级和储气需求，控制空气压缩机的运行过程，一方面可以保证各气动系统的正常和安全运行，另一方面可以控制空气压缩机节能运行。
经大量的试验验证，采用本实施例的技术方案，通过根据空压机供气的各个气动系统优先级(对整车安全而言)，选用不同切换气压的压力开关，保障空压机安全稳定工作、降低空压机频繁启停的次数，实现气动系统的优先级可靠保障。
根据本公开的实施例，还提供了对应于供气控制方法的一种供气控制装置。参见图6所示本公开的装置的一实施例的结构示意图。该供气控制装置可以包括：确定单元102和控制单元104。
在一个可选例子中，确定单元102，可以被设置为确定车辆的空气压缩机的允许运行时间，并确定空气压缩机供气的N个气动系统的优先级。其中，N为自然数。该确定单元102的具体功能及处理参见步骤S110。例如：N个气动系统，可以包括：空气悬架系统、行车制动系统、驻车制动系统和门控系统等。其中，N个气动系统的优先级，可以是设定的N个气动系统的运行先后顺序。
在一些实施方式中，所述确定单元102确定车辆的空气压缩机的允许运行 时间，可以包括：
所述确定单元102，具体还可以被设置为获取空气压缩机的当前温度。该确定单元102的具体功能及处理还参见步骤S210。例如：通过设置在空气压缩机处的温度传感器采集空气压缩机的当前温度。
所述确定单元102，具体还可以被设置为将当前温度与设定的极限温度之间的差值，与设定的平均温升梯度之间的比值，作为空气压缩机的允许运行时间。该确定单元102的具体功能及处理还参见步骤S220。
例如：布置在压缩机汽缸盖的温度传感器，能够实施记录当前温度T c，根据极限温度T LMT，计算出空气压缩机的允许运行时间，即空气压缩机最长允许工作的时间t TH，满足该公式：t TH＝(T LMT-T c)/平均温升梯度。这样，针对大于或等于1个气动系统的供气系统，可以根据空压机供气的各个气动系统优先级(对整车安全而言)，选用不同切换气压的压力开关(如压力继电器)，并通过空压机温度传感器实时监测其运行状态，利用当前温度和极限工作温度，计算空压机到达极限工作温度的时间，用以作为空压机允许工作的判断值。其中，空压机关机时间最小时间t OFF是指定零部件极限工况的持续时间耗尽时间t TH前的任意大于等于0小的时间设定，完全＝0，则有空压机故障停机的风险，设定过大，则会造成温度敏感性高，影响空压机正常开关机。
由此，通过基于空气压缩机的当前温度确定其允许运行时间，可以在保证空气压缩机安全的情况下才允许其运行，有利于提升空气压缩机运行的可靠性和安全性。
在一些实施方式中，所述确定单元102确定空气压缩机供气的N个气动系统的优先级，可以包括：
所述确定单元102，具体还可以被设置为确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机。该确定单元102的具体功能及处理还参见步骤S310。
在一些实施方式中，所述确定单元102确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机，可以包括：
所述确定单元102，具体还可以被设置为获取空气压缩机供气的N个气动系统中优先级高的气动系统的储气筒的气压信息。该确定单元102的具体功能 及处理还参见步骤S410。
所述确定单元102，具体还可以被设置为若该优先级高的气动系统的储气筒的气压信息，低于或等于该优先级高的气动系统的储气筒的设定气压范围的下限，则确定该优先级高的气动系统需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路开通。该确定单元102的具体功能及处理还参见步骤S420。
所述确定单元102，具体还可以被设置为若该优先级高的气动系统的储气筒的气压信息，高于或等于该优先级高的气动系统的储气筒的设定气压范围的上限，则确定该优先级高的气动系统不需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路关闭。该确定单元102的具体功能及处理还参见步骤S430。
例如：压力开关具有维持储气筒一定压力的作用(该一定压力介于两个切换气压如切换气压b p sb和切换气压a p sa之间)，当储气筒气压低于切换气压b p sb时，开关信号为S i＝1，需要打开空压机给储气筒充气。高于切换气压a p sa时开关信号为S i＝0，需要关闭空压机停止充气。
例如：供气处理单元接收空压机温度传感器信号、以及各气路系统的压力开关信号，压力开关具有维持储气筒一定压力的作用(该一定压力介于两个切换气压如切换气压b p sb和切换气压a p sa之间)，当储气筒气压低于切换气压b p sb时，开关信号为S i＝1，需要打开空压机充气。高于切换气压a p sa时开关信号为S i＝0，需要关闭空压机停止充气。
由此，通过基于各气动系统的储气筒的气压信息确定其是否需要开启空气压缩机，保证了各气动系统的正常和安全运行。
所述确定单元102，具体还可以被设置为若该优先级高的气动系统需要启动空气压缩机，则确定空气压缩机供气的N个气动系统的优先级为高优先级，并不需要确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机。该确定单元102的具体功能及处理还参见步骤S320。
所述确定单元102，具体还可以被设置为若该优先级高的气动系统不需要启动空气压缩机，则确定空气压缩机供气的N个气动系统的优先级低于该优先 级，并确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机该确定单元102的具体功能及处理还参见步骤S330。依次类推。
例如：切换气压a，对应的是从低压到高压的转折点(也叫压力开关的关闭点)，超过切换气压a后，压力开关的状态，就处于关闭状态，即空压机无需再给该贮气筒充气。切换气压b，对应的是从高压降低到低压的转折点(也叫压力开关的打开点)，超过切换气压a后，压力开关的状态，就处于关闭状态。
例如：如果有四个气动系统，每个气动系统的贮气筒上的压力开关可以表示为S 1～S 4，于是：优先等级：S 1>S 2>S 3>S 4切换气压：P sa1≤P sa2≤P sa3≤P sa4。其中，不同气动系统的储气筒，切换气压b为满足其工作的最低气压要求，而切换气压a，则根据气动系统的优先等级不同而设置不同。如：行车制动系统、驻车制动系统、空气悬架系统、门控系统的压力开关优先级依次下降，则：S 1>S 2>S 3>S 4，则根据气动系统特性，选择切换气压值满足p sa1≤p sa2≤p sa3≤p sa4的关系。
由此，通过根据各气动系统的优先级确定其是否需要开启空气压缩机，进而根据各气动系统的优先级及其对空气压缩机的开启需求控制各气动系统的储气通路及空气压缩机的供气通路的开启或关闭，保证了各气动系统的正常运行，也避免了能源浪费。
在一个可选例子中，控制单元104，可以被设置为根据空气压缩机的允许运行时间，并结合N个气动系统的优先级，控制空气压缩机的开机状态或停机状态，以及在空气压缩机在开启状态下，控制空气压缩机对N个气动系统的供气状态。该控制单元104的具体功能及处理参见步骤S120。
例如：针对大于或等于1个气动系统的供气系统，通过允许运行时间结合压力开关所在系统优先级，能够保障空压机安全稳定工作、降低空压机频繁启停的次数，提升整个气动系统的可靠性、保证了不同优先级系统的工作状态和空压机的工作寿命。可以解决空压机的频繁开启问题，实现空压机的安全节能供气(如空压机的状态预警)，实现气动系统的优先级可靠保障。
例如：利用空压机温度极限模型，和不同气动系统压力开关优先等级响应 模型，优化了供气系统的供气逻辑，使其始终处于较低负荷的响应状态，如：利用不同气动系统的不同压力开关设定，结合空压机的温度模型，为不同气动系统提供优先等级不同的供气功能，减少空压机正常启停次数。并保障空压机在安全的运行范围工作，避免故障停机，解决了空压机供气系统频繁启停，以及温升导致空压机故障停机等问题，提升了供给系统的安全可靠性。
由此，通过根据空气压缩机的允许运行时间和N个气动系统的优先级，控制空气压缩机的开机状态或停机状态、以及控制空气压缩机对N个气动系统的供气状态，可以在保证安全的情况下实现节能控制，且控制方式方便。
在一些实施方式中，所述控制单元104控制空气压缩机的开机状态或停机状态，可以包括：
所述控制单元104，具体还可以被设置为确定空气压缩机的允许运行时间是否大于设定的运行时间阈值。该控制单元104的具体功能及处理还参见步骤S510。
所述控制单元104，具体还可以被设置为若空气压缩机的允许运行时间大于设定的运行时间阈值，则在空气压缩机需要开机或不需要开机的情况下均不发出空气压缩机的当前温度高于设定的温度阈值的提醒消息，和/或在空气压缩机需要开机的情况下控制空气压缩机处于开机状态，如在空气压缩机处于停机状态而需要开机的情况下控制空气压缩机开机、或在空气压缩机处于开机状态时控制空气压缩机保持在开机状态。该控制单元104的具体功能及处理还参见步骤S520。
所述控制单元104，具体还可以被设置为若空气压缩机的允许运行时间小于或等于设定的运行时间阈值，则控制空气压缩机处于停机状态，如在空气压缩机处于开机状态时控制空气压缩机停机、或在空气压缩机处于停机状态时控制空气压缩机保持在停机状态，并发出空气压缩机的当前温度高于设定的温度阈值的提醒消息。该控制单元104的具体功能及处理还参见步骤S530。例如：如果空气压缩机的允许运行时间t TH趋近于0，即必须立即停止压缩机的工作，并发出报警信号。待压缩机温度回落，重新接收空压机的信号继续工作，保证压缩机安全平稳运行。
由此，通过在空气压缩机的允许运行时间大于其允许时间阈值的情况下才 允许其运行，可以保证空气压缩机运行的安全性。
在一些实施方式中，所述控制单元104控制空气压缩机对N个气动系统的供气状态，可以包括以下任一种控制情形。
第一种控制情形：所述控制单元104，具体还可以被设置为在N个气动系统中优先级高的气动系统需要启动空气压缩机的情况下，允许空气压缩机的供气通路对优先级低于或等于该优先级的第一部分气动系统的储气筒进行充气，即允许空气压缩机的供气管路对N个气动系统中优先级低于或等于该优先级的第一部分气动系统的储气筒进行充气。
例如：在控制空压机启停的过程中，当优先级高的气压，需要启动空压机时，空压机通过供气管路对所有气动系统的储气筒进行充气，优先等级低的储气筒则可以“顺带”充气，空压机更多响应高优先等级的储气筒充气请求。这样优先级低的储气筒，维持在较大的气压范围内不会发出请求信号，较为迟钝的保证在允许气压范围内。
第二种控制情形：所述控制单元104，具体还可以被设置为在N个气动系统中优先级高的气动系统不需要启动空气压缩机的情况下，允许空气压缩机的供气通路对N个气动系统中优先级低于该优先级的第二部分气动系统的储气筒进行充气，即允许空气压缩机的供气管路对N个气动系统中优先级低于该优先级的第二部分气动系统的储气筒进行充气。
第三种控制情形：所述控制单元104，具体还可以被设置为在N个气动系统中所有气动系统均不需要启动空气压缩机的情况下，控制空气压缩机停机，即控制空气压缩机由开机状态转为停机状态。
例如：在控制空压机启停的过程中，当高优先级的系统没有充气请求时，而空压机也会较为空闲地满足低优先等级的气动系统储气筒的充气请求，从而使得供气系统处于设计状态的低负荷启停状态运行。
例如：处理单元读取当前温度值，并根据公式(1)计算出最长允许工作时间t TH，当t TH大于0(或者一个空压机关机时间最小时间t OFF，t OFF大于等于0)，认为空压机是可以继续工作的，于是不发出(或清除)空压机预警信号。同时接受储气筒的充气请求指令。依据不同气动系统的优先级，依次读取压力开关的信号值，从高优先级到低优先级，任一压力开关请求充气时，则开启空 压机，并循环。否则，保持空压机停机状态，并循环。
由此，通过结合各气动系统的优先级和储气需求，控制空气压缩机的运行过程，一方面可以保证各气动系统的正常和安全运行，另一方面可以控制空气压缩机节能运行。
由于本实施例的装置所实现的处理及功能基本相应于前述图1至图5所示的方法的实施例、原理和实例，故本实施例的描述中未详尽之处，可以参见前述实施例中的相关说明，在此不做赘述。
经大量的试验验证，采用本公开的技术方案，通过空压机温度传感器实时监测其运行状态，利用当前温度和极限工作温度，计算空压机到达极限工作温度的时间，用以作为空压机允许工作的判断值，实现空压机的安全节能供气。
根据本公开的实施例，还提供了对应于供气控制装置的一种车辆。该车辆可以包括：以上所述的供气控制装置。
在一个可选实施方式中，本公开的方案，提供一种空压机节能供气系统和供气方法，适用于大于或等于1个气动系统的供气系统，可以根据空压机供气的各个气动系统优先级(对整车安全而言)，选用不同切换气压的压力开关(如压力继电器)，并通过空压机温度传感器实时监测其运行状态，利用当前温度和极限工作温度，计算空压机到达极限工作温度的时间，用以作为空压机允许工作的判断值。
通过允许运行时间结合压力开关所在系统优先级，能够保障空压机安全稳定工作、降低空压机频繁启停的次数，提升整个气动系统的可靠性、保证了不同优先级系统的工作状态和空压机的工作寿命；可以解决空压机的频繁开启问题，实现空压机的安全节能供气(如空压机的状态预警)，实现气动系统的优先级可靠保障。同时，整个系统方案设计和控制方法，除了利用现有的硬件资源外，增加的空压机控制部分作为空压机集成系统，不需要与整车系统通信和互联，大大提升了其独立工作能力，降低成本的同时，提升了可移植性和实用性。
在一个可选例子中，本公开的方案，利用空压机温度极限模型，和不同气动系统压力开关优先等级响应模型，优化了供气系统的供气逻辑，使其始终处 于较低负荷的响应状态，解决了空压机供气系统频繁启停，以及温升导致空压机故障停机等问题，提升了供给系统的安全可靠性。同时，整个系统方案设计和控制方法，除了利用现有的硬件资源外，增加的空压机控制部分作为空压机集成系统，不需要与整车系统通信和互联，既降低了供气系统的成本，同时大大提升了其独立可靠工作的能力，增强了系统方案的可移植性和实用性。
在一个可选具体实施方式中，可以参见图7至图10所示的例子，对本公开的方案的具体实现过程进行示例性说明。
图7所示为压缩空气供给系统及各个气动系统。在图7所示系统中，包括：空气弹簧1，高度传感器2，2/2电磁阀3，3/2电磁阀4，排气阀5，消音器6，第一压力开关(如储气筒处的压力开关)71，第二压力开关(如行车制动系统处的压力开关)72，第三压力开关(如驻车制动系统处的压力开关)73，第四压力开关(如门控系统处的压力开关)74，单向阀8，四通阀9，空气干燥器10，空气滤清器11，压缩机12，温度传感器13，电机14，能量中心(即空气供给单元)15。
如图7所示，在四通阀(即四回路保护阀)之后，会有供气管路连接到各个气动系统，如供气管路连接到空气悬架系统、行车制动系统、驻车制动系统和门控系统等。通过增设一个能量中心(例如：空气供给单元)，该中心或单元，利用不同气动系统的不同压力开关设定，结合空压机的温度模型，为不同气动系统提供优先等级不同的供气功能，减少空压机正常启停次数；并保障空压机在安全的运行范围工作，避免故障停机。下面以空气悬架系统作为一路气动系统进行示例性说明。ECU为电子控制单元。
空气自进气口，经空气滤清器进入到空压机，在电机带动下空压机将低压气体转变为高压气体，经空气干燥器后通过四通阀(即四回路保护阀)供给到空气弹簧悬架系统的储气筒。
供气处理单元可以是独立的或者集成在空压机上的信号处理和控制单元，也就是说，供气处理单元可以独立存在、或集成到空压机或其他ECU功能模块。供气处理单元接收空压机温度传感器信号、以及各气路系统的压力开关信号，压力开关具有维持储气筒一定压力的作用(该一定压力介于两个切换气压如切换气压b p sb和切换气压a p sa之间)，当储气筒气压低于切换气压b p sb时， 开关信号为S i＝1，需要打开空压机充气；高于切换气压a p sa时开关信号为S i＝0，需要关闭空压机停止充气。
其中，压力开关也指压力继电器、压力操纵开关、压力传感器等。
空压机多为固定频率、额定功率工作的压缩机，频繁启停或长时间工作会导致压缩机温度升高，安装在车底盘的空压机工作环境恶劣，长时间高温高负荷工作极容易发生故障，导致真个供气系统瘫痪。布置在压缩机汽缸盖的温度传感器，能够实施记录当前温度T c，根据极限温度T LMT，计算出压缩机最长允许工作的时间t TH，满足如下公式：
t TH＝(T LMT-T c)/平均温升梯度    公式(1)
如果该时间趋近于0，即必须立即停止压缩机的工作，并发出报警信号。待压缩机温度回落，重新接收空压机的信号继续工作，保证压缩机安全平稳运行。
图8所示为压力开关的切换逻辑。图8中，横坐标p表示气压，纵坐标state表示压力开关的状态。切换气压a，对应的是从低压到高压的转折点(也叫压力开关的关闭点closing point)，超过切换气压a后，压力开关的状态state，就处于closed(关闭状态)，即空压机无需再给该贮气筒充气；切换气压b，对应的是从高压降低到低压的转折点(也叫压力开关的打开点opening point)，超过切换气压a后，压力开关的状态state，就处于closed(关闭状态)；如果有四个气动系统，每个气动系统的贮气筒上的压力开关可以表示为S 1～S 4，于是：Priority Level(优先等级)：S 1>S 2>S 3>S 4，Switching Pressure(切换气压)：P sa1≤P sa2≤P sa3≤P sa4。
如图8所示，压力开关具有维持储气筒一定压力的作用(该一定压力介于两个切换气压如切换气压b p sb和切换气压a p sa之间)，当储气筒气压低于切换气压b p sb时，开关信号为S i＝1，需要打开空压机给储气筒充气；高于切换气压a p sa时开关信号为S i＝0，需要关闭空压机停止充气。
其中，不同气动系统的储气筒，切换气压b为满足其工作的最低气压要求，而切换气压a，则在本公开的方案中根据气动系统的优先等级不同，设置不同。
例如：行车制动系统、驻车制动系统、空气悬架系统、门控系统的压力开关优先级依次下降，则：S 1>S 2>S 3>S 4，则根据气动系统特性，选择切换气压 值满足p sa1≤p sa2≤p sa3≤p sa4的关系。
在控制空压机启停时，当优先级高的气压，需要启动空压机时，空压机通过供气管路对所有气动系统的储气筒进行充气，优先等级低的储气筒则可以“顺带”充气，空压机更多响应高优先等级的储气筒充气请求。这样优先级低的储气筒，维持在较大的气压范围内不会发出请求信号，较为迟钝的保证在允许气压范围内。当高优先级的系统没有充气请求时，而空压机也会较为空闲地满足低优先等级的气动系统储气筒的充气请求，从而使得供气系统处于设计状态的低负荷启停状态运行。
图9为空压机的供气处理单元工作流程图，下面参见图9所示的例子，对整个供气系统的供气过程进行示例性说明。
在图9所示的流程中，流程开启(START)后，处理单元读取当前温度值，并根据公式(1)计算出最长允许工作时间t TH，当t TH大于0(或者一个空压机关机时间最小时间t OFF，t OFF大于等于0)，认为空压机是可以继续工作的，于是不发出(或清除)空压机预警信号(WARNING)；同时接受储气筒的充气请求指令。依据不同气动系统的优先级，依次读取压力开关的信号值，从高优先级到低优先级，任一压力开关请求充气时，则开启空压机，并循环；否则，保持空压机停机状态，并循环。
其中，空压机关机时间最小时间t OFF是指定零部件极限工况的持续时间耗尽时间t TH前的任意大于等于0小的时间设定，完全＝0，则有空压机故障停机的风险，设定过大，则会造成温度敏感性高，影响空压机正常开关机。
供气系统如图10所示的例子分为三部分，第一部分为信号输入部分，第二部分为中央处理部分，第三部分为执行输出部分。
由于本实施例的车辆所实现的处理及功能基本相应于前述图6所示的装置的实施例、原理和实例，故本实施例的描述中未详尽之处，可以参见前述实施例中的相关说明，在此不做赘述。
经大量的试验验证，采用本公开的技术方案，通过根据空压机供气的各个气动系统优先级，选用不同切换气压的压力开关，并通过空压机温度传感器实时监测其运行状态，利用当前温度和极限工作温度，计算空压机到达极限工作温度的时间，用以作为空压机允许工作的判断值，解决了空压机供气系统频繁 启停，以及温升导致空压机故障停机等问题，提升了供给系统的安全可靠性。
根据本公开的实施例，还提供了对应于供气控制方法的一种存储介质。该存储介质，可以包括：所述存储介质中存储有多条指令；所述多条指令，被设置为由处理器加载并执行以上所述的供气控制方法。
由于本实施例的存储介质所实现的处理及功能基本相应于前述图1至图5所示的方法的实施例、原理和实例，故本实施例的描述中未详尽之处，可以参见前述实施例中的相关说明，在此不做赘述。
经大量的试验验证，采用本公开的技术方案，通过利用空压机温度极限模型，和不同气动系统压力开关优先等级响应模型，优化供气系统的供气逻辑，使其始终处于较低负荷的响应状态，避免空压机供气系统频繁启停、以及温升导致空压机故障停机等问题，提升了供给系统的安全可靠性。
根据本公开的实施例，还提供了对应于供气控制方法的一种车辆。该车辆，可以包括：处理器，被设置为执行多条指令；存储器，被设置为存储多条指令；其中，所述多条指令，被设置为由所述存储器存储，并由所述处理器加载并执行以上所述的供气控制方法。
由于本实施例的车辆所实现的处理及功能基本相应于前述图1至图5所示的方法的实施例、原理和实例，故本实施例的描述中未详尽之处，可以参见前述实施例中的相关说明，在此不做赘述。
经大量的试验验证，采用本公开的技术方案，通过允许运行时间结合压力开关所在系统优先级，能够保障空压机安全稳定工作、降低空压机频繁启停的次数，提升整个气动系统的可靠性、保证了不同优先级系统的工作状态和空压机的工作寿命；可以解决空压机的频繁开启问题，实现空压机的安全节能供气，实现气动系统的优先级可靠保障。
综上，本领域技术人员容易理解的是，在不冲突的前提下，上述各有利方式可以自由地组合、叠加。
以上所述仅为本公开的实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内， 所作的任何修改、等同替换、改进等，均应包含在本公开的权利要求范围之内。

Claims (15)

  1. 一种供气控制方法，包括：
    确定车辆的空气压缩机的允许运行时间，并确定空气压缩机供气的N个气动系统的优先级；其中，N为自然数；
    根据空气压缩机的允许运行时间，并结合N个气动系统的优先级，控制空气压缩机的开机状态或停机状态，以及在空气压缩机在开启状态下，控制空气压缩机对N个气动系统的供气状态。
  2. 根据权利要求1所述的方法，其中，确定车辆的空气压缩机的允许运行时间，包括：
    获取空气压缩机的当前温度；
    将当前温度与设定的极限温度之间的差值，与设定的平均温升梯度之间的比值，作为空气压缩机的允许运行时间。
  3. 根据权利要求1所述的方法，其中，确定空气压缩机供气的N个气动系统的优先级，包括：
    确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机；
    若该优先级高的气动系统需要启动空气压缩机，则不需要确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机；
    若该优先级高的气动系统不需要启动空气压缩机，则确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机。
  4. 根据权利要求3所述的方法，其中，确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机，包括：
    获取空气压缩机供气的N个气动系统中优先级高的气动系统的储气筒的气压信息；
    若该优先级高的气动系统的储气筒的气压信息，低于或等于该优先级高的气动系统的储气筒的设定气压范围的下限，则确定该优先级高的气动系统需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路开通；
    若该优先级高的气动系统的储气筒的气压信息，高于或等于该优先级高的 气动系统的储气筒的设定气压范围的上限，则确定该优先级高的气动系统不需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路关闭。
  5. 根据权利要求1至4中任一项所述的方法，其中，控制空气压缩机的开机状态或停机状态，包括：
    确定空气压缩机的允许运行时间是否大于设定的运行时间阈值；
    若空气压缩机的允许运行时间大于设定的运行时间阈值，则不发出空气压缩机的当前温度高于设定的温度阈值的提醒消息，和/或控制空气压缩机处于开机状态；
    若空气压缩机的允许运行时间小于或等于设定的运行时间阈值，则控制空气压缩机处于停机状态，并发出空气压缩机的当前温度高于设定的温度阈值的提醒消息。
  6. 根据权利要求1至4中任一项所述的方法，其中，控制空气压缩机对N个气动系统的供气状态，包括：
    在N个气动系统中优先级高的气动系统需要启动空气压缩机的情况下，允许空气压缩机的供气通路对优先级低于或等于该优先级的第一部分气动系统的储气筒进行充气；
    或者，在N个气动系统中优先级高的气动系统不需要启动空气压缩机的情况下，允许空气压缩机的供气通路对N个气动系统中优先级低于该优先级的第二部分气动系统的储气筒进行充气；
    或者，在N个气动系统中所有气动系统均不需要启动空气压缩机的情况下，控制空气压缩机停机。
  7. 一种供气控制装置，包括：
    确定单元，被设置为确定车辆的空气压缩机的允许运行时间，并确定空气压缩机供气的N个气动系统的优先级；其中，N为自然数；
    控制单元，被设置为根据空气压缩机的允许运行时间，并结合N个气动系统的优先级，控制空气压缩机的开机状态或停机状态，以及在空气压缩机在开启状态下，控制空气压缩机对N个气动系统的供气状态。
  8. 根据权利要求7所述的装置，其中，所述确定单元确定车辆的空气压缩机的允许运行时间，包括：
    获取空气压缩机的当前温度；
    将当前温度与设定的极限温度之间的差值，与设定的平均温升梯度之间的比值，作为空气压缩机的允许运行时间。
  9. 根据权利要求7所述的装置，其中，所述确定单元确定空气压缩机供气的N个气动系统的优先级，包括：
    确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机；
    若该优先级高的气动系统需要启动空气压缩机，则不需要确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机；
    若该优先级高的气动系统不需要启动空气压缩机，则确定空气压缩机供气的N个气动系统中优先级低于该优先级的气动系统是否需要启动空气压缩机。
  10. 根据权利要求9所述的装置，其中，所述确定单元确定空气压缩机供气的N个气动系统中优先级高的气动系统是否需要启动空气压缩机，包括：
    获取空气压缩机供气的N个气动系统中优先级高的气动系统的储气筒的气压信息；
    若该优先级高的气动系统的储气筒的气压信息，低于或等于该优先级高的气动系统的储气筒的设定气压范围的下限，则确定该优先级高的气动系统需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路开通；
    若该优先级高的气动系统的储气筒的气压信息，高于或等于该优先级高的气动系统的储气筒的设定气压范围的上限，则确定该优先级高的气动系统不需要启动空气压缩机，并控制该优先级高的气动系统的储气筒的充气通路关闭。
  11. 根据权利要求7至10中任一项所述的装置，其中，所述控制单元控制空气压缩机的开机状态或停机状态，包括：
    确定空气压缩机的允许运行时间是否大于设定的运行时间阈值；
    若空气压缩机的允许运行时间大于设定的运行时间阈值，则不发出空气压缩机的当前温度高于设定的温度阈值的提醒消息，和/或控制空气压缩机处于开机状态；
    若空气压缩机的允许运行时间小于或等于设定的运行时间阈值，则控制空气压缩机处于停机状态，并发出空气压缩机的当前温度高于设定的温度阈值的提醒消息。
  12. 根据权利要求7至10中任一项所述的装置，其中，所述控制单元控制空气压缩机对N个气动系统的供气状态，包括：
    在N个气动系统中优先级高的气动系统需要启动空气压缩机的情况下，允许空气压缩机的供气通路对优先级低于或等于该优先级的第一部分气动系统的储气筒进行充气；
    或者，在N个气动系统中优先级高的气动系统不需要启动空气压缩机的情况下，允许空气压缩机的供气通路对N个气动系统中优先级低于该优先级的第二部分气动系统的储气筒进行充气；
    或者，在N个气动系统中所有气动系统均不需要启动空气压缩机的情况下，控制空气压缩机停机。
  13. 一种车辆，包括：如权利要求7-12任一所述的供气控制装置。
  14. 一种车辆，包括：
    处理器，被设置为执行多条指令；
    存储器，被设置为存储多条指令；
    其中，所述多条指令，被设置为由所述存储器存储，并由所述处理器加载并执行如权利要求1-6任一所述的供气控制方法。
  15. 一种存储介质，所述存储介质中存储有多条指令；所述多条指令，被设置为由处理器加载并执行如权利要求1-6任一所述的供气控制方法。
PCT/CN2020/112445 2019-12-04 2020-08-31 一种供气控制方法、装置、存储介质及车辆 WO2021109642A1 (zh)

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Publication number Priority date Publication date Assignee Title
CN111038201B (zh) * 2019-12-04 2021-06-11 珠海格力电器股份有限公司 一种供气控制方法、装置、存储介质及车辆
CN111907496B (zh) * 2020-07-28 2021-05-11 东风商用车有限公司 一种纯电动卡车气制动供能管路系统及其控制方法
CN114060259B (zh) * 2020-08-04 2024-03-19 北京福田康明斯发动机有限公司 一种车辆制动系统中空气压缩机的控制方法、控制器
CN112660091B (zh) * 2020-12-24 2022-11-15 珠海格力电器股份有限公司 一种汽车的控制方法、装置、汽车、存储介质及处理器
CN113335252B (zh) * 2021-07-21 2022-09-30 福建中科云杉信息技术有限公司 一种气刹制动的气压调节方法和气刹控制系统
CN114109791A (zh) * 2021-09-29 2022-03-01 北汽福田汽车股份有限公司 车载空压机的启停控制方法、装置、车辆及存储介质
CN114572172B (zh) * 2022-02-15 2022-11-29 东风汽车股份有限公司 一种制动系统保压控制方法、记录媒体及系统
CN114810549B (zh) * 2022-04-19 2024-03-12 瀚云科技有限公司 一种空气压缩机的节能方法和节能装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008002017A1 (de) * 2008-05-28 2009-12-03 Zf Friedrichshafen Ag Verfahren zum Betreiben einer Kompressorkupplung in einem Fahrzeug
CN203032667U (zh) * 2013-01-24 2013-07-03 陕西重型汽车有限公司 重型汽车空气管理系统总成
CN106089665A (zh) * 2016-07-14 2016-11-09 中车唐山机车车辆有限公司 空压机控制方法和装置
CN106194685A (zh) * 2016-07-29 2016-12-07 厦门金龙旅行车有限公司 一种汽车用有油电动空压机防机油乳化的控制方法
WO2017068338A1 (en) * 2015-10-18 2017-04-27 Alexander Dennis Limited Compressed air systems and methods
CN107891856A (zh) * 2017-11-13 2018-04-10 浙江德翰制动系统有限公司 用于汽车一体式空气处理系统的控制方法
CN207740153U (zh) * 2017-11-06 2018-08-17 江麓机电集团有限公司 一种特种车辆用空压机间歇式运行组件的测控系统
CN110091681A (zh) * 2018-01-30 2019-08-06 凯斯纽荷兰工业美国有限责任公司 用于作业车辆的空气供应系统
CN111038201A (zh) * 2019-12-04 2020-04-21 珠海格力电器股份有限公司 一种供气控制方法、装置、存储介质及车辆

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8653415B2 (en) * 2007-04-30 2014-02-18 Illinois Tool Works Inc. Engine-driven air compressor/generator load priority control system and method
GB2476263A (en) * 2009-12-17 2011-06-22 Agco Gmbh Air supply system with a secondary consumer to control tyre pressure
KR20180117309A (ko) * 2017-04-19 2018-10-29 주식회사 한백아이엔티 이기종, 다기종 호환운영이 가능한 공기압축기 제어시스템 및 제어방법
CN107355373A (zh) * 2017-07-24 2017-11-17 深圳市沃特玛电池有限公司 空气压缩机控制系统及控制方法
CN110103657A (zh) * 2019-03-21 2019-08-09 清科智能悬架系统（苏州）有限公司 一种双向空气压缩机的控制方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008002017A1 (de) * 2008-05-28 2009-12-03 Zf Friedrichshafen Ag Verfahren zum Betreiben einer Kompressorkupplung in einem Fahrzeug
CN203032667U (zh) * 2013-01-24 2013-07-03 陕西重型汽车有限公司 重型汽车空气管理系统总成
WO2017068338A1 (en) * 2015-10-18 2017-04-27 Alexander Dennis Limited Compressed air systems and methods
CN106089665A (zh) * 2016-07-14 2016-11-09 中车唐山机车车辆有限公司 空压机控制方法和装置
CN106194685A (zh) * 2016-07-29 2016-12-07 厦门金龙旅行车有限公司 一种汽车用有油电动空压机防机油乳化的控制方法
CN207740153U (zh) * 2017-11-06 2018-08-17 江麓机电集团有限公司 一种特种车辆用空压机间歇式运行组件的测控系统
CN107891856A (zh) * 2017-11-13 2018-04-10 浙江德翰制动系统有限公司 用于汽车一体式空气处理系统的控制方法
CN110091681A (zh) * 2018-01-30 2019-08-06 凯斯纽荷兰工业美国有限责任公司 用于作业车辆的空气供应系统
CN111038201A (zh) * 2019-12-04 2020-04-21 珠海格力电器股份有限公司 一种供气控制方法、装置、存储介质及车辆

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