A vehicle heating control system and vehicle

Abstract

The utility model belongs to the technical field of vehicle heating equipment, concretely relates to a vehicle warm air control system and vehicle. Including at least two parallel heating loop and the control circuit for corresponding control heating loop on-off, a heating loop and corresponding control circuit form heating loop, a heating loop is arranged in the driving area of vehicle, at least one heating loop is arranged in the carriage area of vehicle, wherein, control circuit includes first branch and second branch, first branch has the first total switch and fan assembly in series, the first control switch for controlling heating loop is connected in series in second branch, and the second branch of first control switch is parallelly connected on the load side of first total switch. The utility model is used to solve the problem that the energy consumption of vehicle heating is too high, through the heating loop and the control circuit of heating loop, a plurality of heating loops are arranged in the driving area and the carriage area respectively, so that each heating loop can be controlled respectively, energy waste is avoided, and energy consumption is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle heating equipment, specifically relating to a vehicle heating control system and a vehicle. Background Technology

[0002] As passengers demand higher levels of comfort in buses, the extremely cold climates in high-altitude and frigid regions of Northeast and Northwest my country place higher demands on vehicle heating systems. In addition to air conditioning systems, auxiliary heating equipment is also required to supplement the vehicle's heat source.

[0003] From an ergonomic perspective, bottom-up warming, such as prioritizing foot heating, is more in line with the physiological principle of "warm feet, warm body" than traditional top-mounted air supply. Therefore, most pure electric buses currently have PTC heaters installed in the lower part of the passenger compartment.

[0004] Current electric heating systems typically require multiple PTC heaters, all of which activate simultaneously upon system startup. This results in low energy efficiency when multiple heaters operate at full power, especially in environments with relatively high temperatures or low passenger loads. For instance, when only the driver is in the vehicle, the driver's area heating unit cannot be activated independently. This crude temperature control strategy significantly increases overall vehicle energy costs, thereby reducing the vehicle's range. Utility Model Content

[0005] To address the shortcomings of existing technologies, a vehicle heating control system and vehicle are provided to solve the problem of excessive energy consumption for vehicle heating.

[0006] On the one hand, the technical solution of this utility model to solve the above-mentioned technical problems is as follows: a vehicle heating control system, which includes at least two parallel heating circuits and a control circuit for correspondingly controlling the on and off of the heating circuits;

[0007] One of the heating circuits and a corresponding control circuit form a heating circuit, one of the heating circuits is arranged in the driver's area of ​​the vehicle, and at least one of the heating circuits is arranged in the passenger compartment of the vehicle.

[0008] The control circuit includes a first branch and a second branch. The first branch is connected in series with a first main switch and a fan assembly. The second branch is connected in series with a first control switch for controlling the heating circuit. The first control switch is connected in parallel to the load side of the first main switch in the second branch.

[0009] Compared with existing technologies, the above technical solutions have the following beneficial effects:

[0010] The heating circuit, consisting of a heating circuit and a control circuit, is arranged in the driver's area and the passenger compartment respectively, so that each heating circuit can be controlled separately, thus avoiding energy waste.

[0011] Furthermore, by connecting the second branch in parallel to the load side of the first main switch in the first branch, the second branch is controlled by the first main switch in the first branch. That is, the heating circuit can only be connected through the second branch after the fan assembly is turned on. Turning on the first control switch alone will not connect the heating circuit. Moreover, the first main switch in the first branch can be used as the main switch. Turning off the first main switch will simultaneously turn off the control circuit, thereby ensuring the disconnection of the heating circuit and avoiding the problem of excessive energy consumption.

[0012] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0013] In one embodiment, the control circuit further includes a contactor, the coil of which is connected in series with the load terminal of the first control switch in the second branch, and the control terminal of which is connected in series with the heating circuit.

[0014] In one embodiment, a vehicle controller is connected in series in the second branch located in the driver's area. The vehicle controller is connected in series between the first control switch and the coil of the contactor, and is used to control the opening and closing of the contactor located in the driver's area.

[0015] In one embodiment, a PTC heating element is connected in series in the heating circuit, which is disposed opposite to the fan assembly, and the PTC heating element is connected in series after the control terminal of the contactor.

[0016] In one embodiment, the heating circuit located in the passenger compartment is connected in parallel to both sides of the PTC heating component in the heating circuit located in the driver's area.

[0017] In one embodiment, the control circuit located in the passenger compartment is connected in parallel to the load side of the first master switch in the control circuit located in the driver's area.

[0018] The control circuit located in the passenger compartment is connected in parallel after the first master switch of the control circuit in the driver's area. This ensures that the control circuit in the passenger compartment is controlled by the control circuit in the driver's area. Since there must be a driver in the driver's area, the heating circuit in the passenger compartment can only be turned on after the long-term heating needs of the driver's seat are met, the problem of insufficient heating at the front air vents of the air conditioner and the problem of stiff legs caused by the driver sitting for a long time are solved. This ensures that the passenger compartment is controlled by the driver and avoids energy waste.

[0019] In one embodiment, a temperature control protection switch is also connected in series in the second branch.

[0020] In one embodiment, a fuse is connected in series in both the control circuit and the heating circuit.

[0021] On the other hand, this utility model also discloses a vehicle that includes the vehicle heating control system as described above. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a connection block diagram of the present invention.

[0024] Figure label:

[0025] 1. Heating circuit; 2. Control circuit; 3. First main switch; 4. Fan assembly; 5. First control switch; 6. Vehicle controller; 7. Contactor; 8. Temperature control protection switch; 9. Fuse; 10. PTC heating assembly;

[0026] 201, First Branch Road; 202, Second Branch Road. Detailed Implementation

[0027] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0028] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0029] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Example 1

[0033] like Figure 1 As shown, the present invention provides a vehicle heating control system, which includes at least two parallel heating circuits 1 and a control circuit 2 for correspondingly controlling the on and off of the heating circuits 1; in this embodiment, three heating circuits 1 are provided, and correspondingly, three control circuits 2 are provided, and the three control circuits 2 respectively control the three heating circuits 1.

[0034] One of the heating circuits 1 and a corresponding control circuit 2 form a heating circuit. One heating circuit is located in the driver's area of ​​the vehicle, and at least one heating circuit is located in the passenger compartment area. The heating circuits 1 in the passenger compartment area are spaced apart, such as... Figure 1 As shown, in this embodiment, the upper heating circuit is the heating circuit for the driver's area, and the two lower heating circuits are the heating circuits for the passenger compartment. Heating circuit 1 is a high-pressure circuit, represented by thick lines, and control circuit 2 is a low-pressure circuit, represented by thin lines.

[0035] Vehicles of different lengths have varying numbers of heating circuits arranged according to actual needs. This layout allows the system to more efficiently regulate the temperature in the driver's area and passenger compartment, ensuring uniform temperature throughout the vehicle and improving passenger comfort. Furthermore, the flexible circuit design allows for adjustments based on vehicle type and intended use, meeting diverse requirements.

[0036] The control circuit 2 includes a first branch 201 and a second branch 202. The first branch 201 is connected in series with a first main switch 3 and a fan assembly 4. The first branch 201 is used to control the opening and closing of the fan assembly 4. The second branch 202 is connected in series with a first control switch 5 for controlling the heating circuit 1. The second branch 202 plays the role of controlling the heating circuit 1. The first control switch 5 is connected in parallel with the load side of the first main switch 3 in the second branch 202, so that the second branch 202 is controlled by the first branch 201.

[0037] The heating circuit, consisting of heating circuit 1 and control circuit 2, is used to arrange multiple heating circuits in the driver's area and the passenger compartment, so that each heating circuit can be controlled separately, thus avoiding energy waste.

[0038] Furthermore, by connecting the second branch 202 in parallel to the load side of the first main switch 3 in the first branch 201, the second branch 202 is controlled by the first main switch 3 in the first branch 201. That is, the heating circuit 1 can only be connected through the second branch 202 after the fan assembly 4 is turned on. If the first control switch 5 is turned on alone, the heating circuit 1 will not be connected. Moreover, the first main switch 3 in the first branch 201 can be used as a main switch. Turning off the first main switch 3 will simultaneously turn off the control circuit 2, thereby ensuring the disconnection of the heating circuit 1 and avoiding the problem of excessive energy consumption.

[0039] Specifically, the control circuit 2 further includes a contactor 7, the coil of which is connected in series with the load end of the first control switch 5 in the second branch 202, and the control end of the contactor 7 is connected in series with the heating circuit 1. Thus, the first control switch 5 in the second branch 202 controls the on / off state of the contactor 7, thereby controlling the on / off state of the heating circuit 1.

[0040] In the heating circuit 1, a PTC heating component 10 is connected in series opposite to the fan assembly 4. The fan assembly 4 can be used to bring the heat emitted by the PTC heating component 10 into the carriage. The PTC heating component 10 is connected in series to the control terminal of the contactor 7, so that the entire heating circuit 1 containing the PTC heating component 10 is controlled by the second branch 202.

[0041] Since heating circuit 1 needs to drive the high-power PTC heating component 10, heating circuit 1 is a high-voltage circuit on the vehicle, and control circuit 2 is a low-voltage circuit on the vehicle.

[0042] Specifically, the two ends of the coil of the contactor 7 are connected in series in the second branch 202, and the two ends of the control terminal of the contactor 7 are connected in series in the heating circuit 1. The on and off of the heating circuit 1 is controlled by whether the coil is energized.

[0043] In one embodiment, a vehicle controller 6 is connected in series in the second branch circuit 202 located in the driver's area. The vehicle controller 6 is connected in series between the first control switch 5 and the coil of the contactor 7, and is used to control the opening and closing of the contactor 7 located in the driver's area. With the vehicle controller 6 connected in series in the second branch circuit 202 located in the driver's area, the driver cannot directly control the entire heating circuit. The vehicle controller 6 is used to participate in the process, so that the driver's control signal is sent to the vehicle controller 6. The vehicle controller 6 participates in the judgment and, together with other information on the vehicle, determines whether to connect or disconnect the second branch circuit 202 in the driver's area.

[0044] The heating circuit 1 located in the passenger compartment is connected in parallel to both sides of the PTC heating component 10 in the heating circuit 1 located in the driver's area. That is, one end of the heating circuit 1 located in the passenger compartment is connected to the control terminal of the contactor 7 in the second branch 202 located in the driver's area, thereby realizing the control of the on / off state of the heating circuit 1 in the passenger compartment through the heating circuit 1 in the driver's area. That is, if the heating circuit 1 in the driver's area is off, even if the control circuit 2 in the passenger compartment is turned on, the heating circuit 1 in the passenger compartment cannot be turned on. Only after the heating circuit 1 in the driver's area is turned on can the control circuit 2 in the passenger compartment control the heating circuit 1 in the passenger compartment be turned on.

[0045] To further enhance safety redundancy, in one embodiment, the control circuit 2 located in the passenger compartment is connected in parallel to the load side of the first master switch 3 in the control circuit 2 located in the driver's area. That is, one end of the control circuit 2 in the passenger compartment is connected after the first master switch 3 in the control circuit 2 in the driver's area, and the other end is grounded, so that the control circuit 2 in the passenger compartment is controlled by the control circuit 2 in the driver's area.

[0046] The control circuit 2 located in the passenger compartment is connected in parallel to the first main switch 3 of the control circuit 2 in the driver's area. This makes the control circuit 2 in the passenger compartment controlled by the control circuit 2 in the driver's area. Since there must be a driver in the driver's area, the heating circuit 1 in the passenger compartment can be turned on to provide heating after the long-term heating needs of the driver's seat are met, the problem of insufficient heating at the front air outlet of the air conditioner and the problem of stiff legs caused by the driver sitting for a long time are solved. This ensures that the passenger compartment is controlled by the driver and avoids energy waste.

[0047] In this embodiment, a temperature control protection switch 8 is also connected in series in the second branch 202. The temperature control protection switch 8 is a normally closed switch that will open when an abnormal temperature occurs, thereby disconnecting the second branch 202 and de-energizing the second branch 202. The contactor 7 disconnects the heating circuit 1 in the driver's area. The temperature control protection switch 8 can use a butterfly-shaped bimetallic strip as a temperature sensing component. The working principle of the temperature controller is as follows: when the temperature rises, the butterfly strip will deform accordingly. When the temperature reaches the value at which the butterfly strip deforms, the second branch is disconnected. The sudden jump of the butterfly strip is achieved by mechanical transmission through the contactor, so that the contacts move quickly to connect or disconnect the power supply.

[0048] Since the heating circuit 1 in the passenger compartment is connected after the contactor 7 in the driver's area, when the contactor 7 in the driver's area is disconnected, the heating circuit 1 in the passenger compartment is disconnected, and all PTC heating components 10 on the vehicle are disconnected, ensuring vehicle safety.

[0049] In this embodiment, fuses 9 are connected in series in the control circuit 2 and the heating circuit 1, so that each branch and circuit can be disconnected individually.

[0050] Example 2

[0051] This utility model also discloses a vehicle, which includes the vehicle heating control system of Embodiment 1.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vehicle heating control system, characterized in that, It includes at least two parallel heating circuits and a control circuit for correspondingly controlling the on / off state of the heating circuits; One of the heating circuits and a corresponding control circuit form a heating circuit, one of the heating circuits is arranged in the driver's area of ​​the vehicle, and at least one of the heating circuits is arranged in the passenger compartment of the vehicle. The control circuit includes a first branch and a second branch. The first branch is connected in series with a first main switch and a fan assembly. The second branch is connected in series with a first control switch for controlling the heating circuit. The first control switch is connected in parallel to the load side of the first main switch in the second branch.

2. The vehicle heating control system according to claim 1, characterized in that, The control circuit also includes a contactor, the coil of which is connected in series with the load terminal of the first control switch in the second branch, and the control terminal of which is connected in series with the heating circuit.

3. The vehicle heating control system according to claim 2, characterized in that, A vehicle controller is connected in series in the second branch located in the driver's area. The vehicle controller is connected in series between the first control switch and the coil of the contactor, and is used to control the opening and closing of the contactor located in the driver's area.

4. The vehicle heating control system according to claim 2, characterized in that, A PTC heating element is connected in series in the heating circuit, which is positioned opposite to the fan assembly. The PTC heating element is connected in series after the control terminal of the contactor.

5. The vehicle heating control system according to claim 4, characterized in that, The heating circuit located in the passenger compartment is connected in parallel to both sides of the PTC heating element in the heating circuit located in the driver's area.

6. The vehicle heating control system according to claim 1, characterized in that, The control circuit located in the passenger compartment is connected in parallel to the load side of the first master switch in the control circuit located in the driver's area.

7. The vehicle heating control system according to claim 1, characterized in that, A temperature control protection switch is also connected in series in the second branch.

8. The vehicle heating control system according to claim 1, characterized in that, A fuse is connected in series in both the control circuit and the heating circuit.

9. A vehicle, characterized in that, Including the vehicle heating control system as described in any one of claims 1-8.

Images