Pure-electric light bus air conditioner control system

Abstract

The utility model provides an air conditioner control system for a pure electric light bus, which comprises an electromagnetic valve module, an air conditioner control module and a power supply module, the switch control module is used for outputting a control signal in response to personnel operation; and the intelligent control module is coupled with the on-off control module and the electromagnetic valve and used for controlling the electromagnetic valve to act according to the control signal so as to control on-off of the passenger area air conditioner. According to the technical scheme, the problems that an air conditioner is high in energy consumption, short in endurance mileage, high in battery energy consumption and the like can be solved. An air conditioner zone control scheme is adopted, the service life of an air conditioner in a vacant space is shortened, the energy reserve of the whole vehicle is adjusted, air conditioner control is improved, operation of a driver is facilitated, and the air conditioner using energy consumption of the whole vehicle can be reduced by about 50%-20% through control.

Description

Technical Field

[0001] The utility model relates to the field of tram energy consumption control, and particularly relates to an air-conditioning control system for a pure electric light bus. Background Art

[0002] With the increasing update of the global environment in recent years, the temperature in summer has been rising year by year, and the duration of high temperature has also increased significantly. The new high-temperature environment has become a new challenge for air-conditioning systems. Due to the gradual exhaustion of petroleum energy and the increasing environmental pollution, pure electric vehicles are the new trend in the development of the automotive industry.

[0003] Since the existing tram air-conditioning system is provided with refrigeration pipelines in both the driving area and the passenger area, and the air-conditioning refrigerant circulates in the refrigeration pipelines to supply cooling to the driving area and the passenger area. During the use of the whole pure electric vehicle, the tram air-conditioning system will cool the driving area and the passenger area simultaneously, which has the problems of high energy consumption and long duration, and has a great impact on the endurance of the tram, and thus needs to be improved urgently. Summary of the Utility Model

[0004] This application provides an air-conditioning control system for a pure electric light bus, so as to reduce the refrigeration energy consumption and thus improve the endurance of the tram.

[0005] The first aspect of this application provides an air-conditioning control system for a pure electric light bus;

[0006] An air-conditioning control system for a pure electric light bus includes:

[0007] A solenoid valve module, installed on the air-conditioning refrigerant pipeline in the passenger area, for controlling the on-off of the air-conditioning refrigerant pipeline in the passenger area;

[0008] A switch control module, for responding to personnel operation and outputting a control signal;

[0009] An intelligent control module, coupled to the switch control module and the solenoid valve, for controlling the opening and closing actions of the solenoid valve according to the control signal.

[0010] Through the above settings, personnel can send a control signal to the intelligent control module through the switch control module according to actual needs to close the solenoid valve module, thereby closing the cooling supply to the passenger area, reducing the refrigeration energy consumption, and thus improving the endurance of the tram.

[0011] Preferably, it further includes:

[0012] A rear evaporation fan module, for supplying air to the passenger area;

[0013] An adjustment module, coupled to the rear evaporation fan module and the intelligent control module, for adjusting the air supply volume of the rear evaporation fan module in response to personnel operation.

[0014] Preferably, the adjustment module includes:

[0015] A first gear adjustment unit for controlling the rear evaporation fan module to operate at a first power;

[0016] A second gear adjustment unit for controlling the rear evaporation fan module to operate at a second power;

[0017] A third gear adjustment unit for controlling the rear evaporation fan module to operate at a third power;

[0018] A selection switch unit for being controlled by a person to select the first gear adjustment unit, the second gear adjustment unit or the third gear adjustment unit to operate.

[0019] Preferably, the rear evaporation fan module includes a rear evaporation fan, a speed regulating resistor R1, and a speed regulating resistor R2. One end of the evaporation fan is coupled to the positive pole of the vehicle-mounted power supply, and the other end is coupled to the speed regulating resistor R1. The other end of the speed regulating resistor R1 is coupled to the speed regulating resistor R2, and the other end of the speed regulating resistor R2 is coupled to the negative pole of the vehicle-mounted power supply.

[0020] Preferably, the first gear adjustment unit includes a relay K11. The contact switch of the relay K11 is connected in series between the speed regulating resistor R2 and the negative pole of the vehicle-mounted power supply. One end of the coil of the relay K11 is coupled to the IGN power supply, and the other end is provided with a first conductive contact. The first conductive contact is coupled to the intelligent control module through the selection switch unit.

[0021] Preferably, the second gear adjustment unit includes a relay K12. One end of the contact switch of the relay K12 is coupled to the electrical connection point between the speed regulating resistor R2 and the speed regulating resistor R1, and the other end is coupled to the negative pole of the vehicle-mounted power supply. One end of the coil of the relay K12 is coupled to the IGN power supply, and the other end is provided with a second conductive contact. The second conductive contact is used to be coupled to the intelligent control module through the selection switch unit.

[0022] Preferably, the third gear adjustment unit includes a relay K13. One end of the contact switch of the relay K13 is coupled to the electrical connection point between the speed regulating resistor R1 and the rear evaporation fan, and the other end is coupled to the negative pole of the vehicle-mounted power supply. One end of the coil of the relay K13 is coupled to the IGN power supply, and the other end is provided with a third conductive contact. The third conductive contact is used to be coupled to the intelligent control module through the selection switch unit.

[0023] Preferably, the selection switch unit includes a housing and a conductive end. The conductive end is slidably disposed on the housing. The conductive end is coupled to the intelligent control module. The first conductive contact, the second conductive contact and the third conductive contact are distributed in the housing along the sliding direction of the conductive end for the conductive end to slidably contact.

[0024] Preferably, it further includes:

[0025] An opening and closing light indicating module, coupled to the switch control module, for indicating the opening and closing state of the switch control module.

[0026] Preferably, the solenoid valve module includes a relay K14 and a solenoid valve. One end of the coil of the relay K14 is coupled to the intelligent control module, and the other end is coupled to the IGN power supply. One end of the contact switch of the relay K14 is coupled to the vehicle-mounted power supply, and the other end is coupled to the solenoid valve. The other end of the solenoid valve is coupled to the ground.

[0027] In summary, the present application includes the following beneficial technical effects:

[0028] 1. The technical solution of the present application can solve problems such as high air-conditioning energy consumption, short cruising range, and fast battery energy consumption.

[0029] 2. The present application adopts an air-conditioning zoning control scheme, reduces the usage time of the air-conditioning in the vacant space, adjusts the vehicle's overall energy reserve, improves air-conditioning control, facilitates the driver's operation, and the vehicle's overall air-conditioning can reduce the energy consumption of air-conditioning use by about 50% - 20% through control. Description of the Drawings

[0030] Figure 1 It is a schematic circuit structure diagram of an air-conditioning control system for a pure electric light bus according to an embodiment of the present application.

[0031] Description of the reference numerals: 1. Solenoid valve module; 2. Switch control module; 3. Intelligent control module; 4. Rear evaporation fan module; 5. Adjustment module; 51. Housing; 52. Conductive end; 6. Opening and closing light indicating module. Detailed Embodiments

[0032] In order to enable those skilled in the art to better understand the technical solutions in this specification, the following will clearly and completely describe the technical solutions in the embodiments of this specification in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0033] In the description of the embodiments of the present application, words such as "exemplary", "for example", or "for illustration" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary", "for example", or "for illustration" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary", "for example", or "for illustration" is intended to present relevant concepts in a specific manner.

[0034] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist simultaneously. Additionally, unless otherwise specified, the meaning of the term "plural" refers to two or more. For example, a plurality of systems means two or more systems, and a plurality of screen terminals means two or more screen terminals. Furthermore, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The terms "include", "comprise", "have" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0035] Scenario: To meet the current market requirements of passenger buses, respond to the call of national policies, and improve the market competitiveness of pure electric passenger buses. Design a new type of pure electric light passenger bus with an air conditioning control system. It is necessary to ensure that the whole vehicle uses air conditioning for refrigeration, ensure energy conservation and power saving, and also take into account the comfort of passengers. Therefore, the air conditioning is arranged on the whole vehicle, but zoning control is adopted. The on / off of the air conditioning system in the passenger area is controlled according to the change of the usage area or the number of users, so as to reduce the power of the compressor and thus reduce energy consumption.

[0036] Explanation of proprietary terms:

[0037] Grounding: In the automotive circuit, "grounding" is a professional term, which refers to connecting the electrical system of the vehicle to the metal body of the vehicle, making the body a part of the circuit and playing the role of grounding; this grounding method can reduce electrical interference and improve the stability and safety of the circuit.

[0038] Refer to Figure 1 , a pure electric light passenger bus air conditioning control system includes a solenoid valve module 1, a switch control module 2, an intelligent control module 3, a rear evaporation fan module 4, an adjustment module 5, and an on / off light indication module 6. The solenoid valve module 1, the switch control module 2, and the adjustment module 5 are all coupled to the intelligent control module 3. The rear evaporation fan module 4 is coupled to the adjustment module 5 to be controlled by the adjustment module 5. The on / off light indication module 6 is coupled to the switch control module 2 to indicate the on / off state of the switch control module 2;

[0039] It should be noted that the intelligent control module 3 can use an MCU, and in other embodiments, other intelligent processing devices can also be used;

[0040] The solenoid valve module 1 includes a relay K14 and a solenoid valve. One end of the coil of the relay K14 is coupled to the intelligent control module 3, and the other end is coupled to the IGN power supply. One end of the contact switch of the relay K14 is coupled to the vehicle-mounted power supply, and the other end is coupled to the solenoid valve. The other end of the solenoid valve is grounded. The solenoid valve is installed on the passenger area air-conditioning refrigerant pipeline to control the on-off of the passenger area air-conditioning refrigerant pipeline;

[0041] The switch control module 2 is a REAR switch. One end of the switch unit S1 of the switch control module 2 is coupled to the intelligent control module 3, and the other end is connected to the negative circuit. The IGN power supply is coupled to the electrical connection point between the switch unit S1 and the intelligent control module 3;

[0042] The closed light indication module includes a first small lamp L1 and a second small lamp L2. The first small lamp L1 is connected in series between the IGN power supply and the switch unit S1. One end of the second small lamp L2 is connected to the vehicle-mounted voltage source, and the other end is connected to the negative circuit; after the switch unit S1 is closed, the first small lamp L1 conducts to prompt the person that the switch unit S1 is closed.

[0043] A person can close the switch unit S1 by pressing it. The level of the intelligent control module 3 where the switch unit S1 is located becomes a negative level input. After the intelligent control module 3 receives the negative level input, it conducts the coil of the relay K14, causing the contact switch of the relay K14 to close, thereby opening the solenoid valve and opening the passenger area refrigerant pipeline to supply cooling to the passenger area; conversely, when the switch unit S1 is opened, the air-conditioning pipeline is closed and the cooling of the passenger area stops;

[0044] The rear evaporation fan module 4 includes a rear evaporation fan, a speed regulating resistor R1, and a speed regulating resistor R2. One end of the evaporation fan is coupled to the positive pole of the vehicle-mounted power supply, and the other end is coupled to the speed regulating resistor R1. There are two rear evaporation fans arranged in parallel, and a fuse with a rated current of 15A is connected in series between each of the two evaporation fans and the positive pole of the vehicle-mounted power supply. The other end of the speed regulating resistor R1 is coupled to the speed regulating resistor R2, and the other end of the speed regulating resistor R2 is coupled to the negative pole of the vehicle-mounted power supply;

[0045] The adjustment module 5 is used to adjust the air supply volume of the rear evaporation fan module 4 in response to the operation of the person. The adjustment module 5 includes a first gear adjustment unit, a second gear adjustment unit, a third gear adjustment unit, and a selection switch unit;

[0046] The first gear adjustment unit includes a relay K11. The contact switch of the relay K11 is connected in series between the speed regulating resistor R2 and the negative pole of the vehicle-mounted power supply. One end of the coil of the relay K11 is coupled to the IGN power supply, and the other end is fixedly connected to a first conductive contact. The first conductive contact is coupled to the intelligent control module 3 through the selection switch unit;

[0047] The second gear adjustment unit includes a relay K12. One end of the contact switch of the relay K12 is coupled to the electrical connection point between the speed control resistor R2 and the speed control resistor R1, and the other end is coupled to the negative pole of the vehicle-mounted power supply. One end of the coil of the relay K12 is coupled to the IGN power supply, and the other end is fixedly connected to the second conductive contact. The second conductive contact is used to be coupled to the intelligent control module 3 through the selection switch unit;

[0048] The third gear adjustment unit includes a relay K13. One end of the contact switch of the relay K13 is coupled to the electrical connection point between the speed control resistor R1 and the rear evaporation blower, and the other end is coupled to the negative pole of the vehicle-mounted power supply. One end of the coil of the relay K13 is coupled to the IGN power supply, and the other end is fixedly connected to the third conductive contact. The third conductive contact is used to be coupled to the intelligent control module 3 through the selection switch unit;

[0049] The selection switch unit includes a housing 51 and a conductive end 52. The conductive end 52 is slidably disposed on the housing 51. The conductive end 52 is coupled to the intelligent control module 3. The first conductive contact, the second conductive contact, and the third conductive contact are distributed in the housing 51 along the sliding direction of the conductive end 52 for the conductive end 52 to slidably contact. Among them, the conductive end 52 can only contact one conductive contact at the same time.

[0050] When the conductive end 52 slides to the first conductive contact, the contact switch of the relay K11 closes, and the speed control resistor R1, the speed control resistor R2, and the rear evaporation blower are connected in series so that the rear evaporation blower works at the first power; when the conductive end 52 slides to the second conductive contact, the contact switch of the relay K11 and the contact switch of the relay K12 close, and the speed control resistor R2 is short-circuited. Only the speed control resistor R1 and the rear evaporation blower are connected in series, so that the rear evaporation blower works at the second power; when the conductive end 52 slides to the third conductive contact, the contact switch of the relay K11 and the contact switch of the relay K13 close, and both the speed control resistor R1 and the speed control resistor R2 are short-circuited, and the power of the rear evaporation blower reaches the maximum. At this time, the rear evaporation blower works at the third power;

[0051] The air-conditioning switch for the passenger area, i.e., the REAR switch, is arranged in the driver's area for convenient operation by the driver. The air volume control switch, i.e., the selection switch unit, is arranged in the passenger area for passengers to adjust the temperature according to their own feelings. The vehicle's air-conditioning system is divided into two parts, namely the passenger area and the driver's area. The on-off of the refrigeration system of the passenger area air-conditioning is controlled by a solenoid valve. When the solenoid valve is open, refrigerant flows through the refrigerant pipeline of the passenger area air-conditioning; when the solenoid valve is closed, the refrigerant circulation in the refrigerant pipeline of the passenger area air-conditioning stops. The driver controls the on-off of the solenoid valve by controlling the REAR switch. At the same time, by linking the rear evaporation fan in the passenger area, the air volume system in the passenger area is controlled. In the driver's area, the driver can operate the on-off of the passenger area air-conditioning based on whether there are passengers in the passenger area and whether the vehicle's cruising range is sufficient. However, the adjustment of the air volume of the passenger area air-conditioning is still retained to meet the comfort adjustment requirements of the passengers in the passenger area when the temperature inside and outside the vehicle changes.

[0052] The above are only exemplary embodiments of the present disclosure and should not be used to limit the scope of the present disclosure. That is, any equivalent changes and modifications made in accordance with the teachings of the present disclosure still fall within the scope covered by the present disclosure. Those skilled in the art will readily think of other embodiments of the present disclosure after considering the specification and practicing the present disclosure herein. This application aims to cover any variations, uses, or adaptive changes of the present disclosure that follow the general principles of the present disclosure and include common general knowledge or conventional technical means in the technical field not described in the present disclosure. The specification and embodiments are only regarded as exemplary, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A pure electric light passenger car air conditioning control system, characterized in that: include: A solenoid valve module (1) is installed in the passenger area air conditioning refrigerant pipeline and is used to control the on and off of the passenger area air conditioning refrigerant pipeline; A switch control module (2), configured to output a control signal in response to a human operation; An intelligent control module (3) coupled to the switch control module (2) and the solenoid valve, and used to control the opening and closing action of the solenoid valve according to a control signal; The control system further comprises: a rear evaporative fan module (4) for supplying air to the passenger area; An adjustment module (5) coupled to the rear evaporator fan module (4) and the intelligent control module (3) and used for adjusting the air supply volume of the rear evaporator fan module (4) in response to a person's operation; The adjustment module (5) comprises: A first gear adjustment unit, used for controlling the rear evaporator fan module (4) to operate at a first power; A second gear adjustment unit, used for controlling the rear evaporator fan module (4) to operate at a second power; A third gear adjustment unit, used for controlling the rear evaporator fan module (4) to operate at a third power; The selection switch unit is used to select the first gear adjustment unit, the second gear adjustment unit or the third gear adjustment unit to work under the control of personnel.

2. The air conditioning control system for a pure electric light passenger vehicle according to claim 1, characterized in that: The rear evaporator fan module (4) comprises a rear evaporator fan, a speed regulating resistor R1, and a speed regulating resistor R2. One end of the evaporator fan is coupled to the positive pole of the vehicle power supply, and the other end is coupled to the speed regulating resistor R1. The other end of the speed regulating resistor R1 is coupled to the speed regulating resistor R2. The other end of the speed regulating resistor R2 is coupled to the negative pole of the vehicle power supply.

3. The air conditioning control system for a pure electric light passenger vehicle according to claim 2, characterized in that: The first gear adjustment unit comprises a relay K11, a contact switch of the relay K11 is connected in series between the speed regulating resistor R2 and the negative pole of the vehicle power supply, one end of the coil of the relay K11 is coupled to the IGN power supply, and the other end is provided with a first conductive contact, and the first conductive contact is coupled to the intelligent control module (3) through the selection switch unit.

4. The air conditioning control system for a pure electric light passenger vehicle according to claim 3, characterized in that: The second gear adjustment unit comprises a relay K12, one end of a contact switch of the relay K12 is coupled to an electrical connection point between the speed regulating resistor R2 and the speed regulating resistor R1, and the other end is coupled to a negative electrode of an on-board power supply, one end of a coil of the relay K12 is coupled to an IGN power supply, and the other end is provided with a second conductive contact, and the second conductive contact is used to couple with an intelligent control module (3) via a selection switch unit.

5. The air conditioning control system for a pure electric light passenger vehicle according to claim 4, characterized in that: The third gear adjustment unit includes a relay K13, one end of a contact switch of the relay K13 is coupled to the electrical connection point between the speed regulating resistor R1 and the rear evaporator fan, and the other end is coupled to the negative pole of the vehicle power supply. One end of the coil of the relay K13 is coupled to the IGN power supply, and the other end is provided with a third conductive contact, and the third conductive contact is used to couple with the intelligent control module (3) through the selection switch unit.

6. The air conditioning control system for a pure electric light passenger vehicle according to claim 5, characterized in that: The selection switch unit comprises a housing (51) and a conductive terminal (52), wherein the conductive terminal (52) is slidably arranged on the housing (51), the conductive terminal (52) is coupled to an intelligent control module (3), and the first conductive contact, the second conductive contact and the third conductive contact are distributed in the housing (51) along the sliding direction of the conductive terminal (52) for sliding contact of the conductive terminal (52).

7. The air conditioning control system for a pure electric light passenger vehicle according to claim 1, characterized in that: Also includes: The on / off light indication module (6) is coupled to the switch control module (2) and is used to indicate the on / off state of the switch control module (2).

8. The air conditioning control system for a pure electric light passenger vehicle according to claim 1, characterized in that: The solenoid valve module (1) comprises a relay K14 and a solenoid valve. One end of the coil of the relay K14 is coupled to the intelligent control module (3) and the other end is coupled to the IGN power supply. One end of the contact switch of the relay K14 is coupled to the vehicle power supply and the other end is coupled to the solenoid valve. The other end of the solenoid valve is coupled to the ground.

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