Method and system for adjusting temperature in passenger car

Abstract

The invention relates to the technical field of vehicle control, in particular to a passenger car interior temperature adjusting method and system. When the air conditioner of the passenger car is in the remote control mode, the temperature outside the car is obtained, the set temperature inside the car corresponding to different temperature intervals outside the car is obtained through the economic mode curve or the comfortable mode curve, and the air conditioner is controlled to operate according to the obtained set temperature inside the car; wherein when the temperature outside the vehicle is within the set temperature interval range, the radiator at the bottom of the compartment works, and after the temperature of the radiator rises to the set temperature and continuously works for a set time period, the air conditioner heat pump unit is controlled to work. According to the economic operation curve or the comfortable operation curve, the in-vehicle set temperature is adjusted in combination with the out-vehicle temperature; the in-vehicle set temperature is dynamically adjusted through the set operation curve and the temperature outside the vehicle, and the in-vehicle comfort and energy conservation and consumption reduction of the vehicle are improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle control, and in particular to a method and system for regulating the temperature inside a bus. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, electric buses use air conditioning to adjust the temperature in two modes: manual adjustment and automatic adjustment. In the manual adjustment mode, after the cabin temperature is manually set, the air conditioning controller performs frequency conversion adjustment according to the temperature difference between the inside and outside of the car, and maintains near the set temperature after approaching the set temperature; in the automatic adjustment mode, the driver first selects the automatic mode on the air conditioning panel, and the controller will lock the cabin set temperature to a fixed value. At this time, the air conditioning controller also performs frequency conversion adjustment according to the temperature difference between the inside and outside of the car. However, both methods have defects. Both manual adjustment and automatic adjustment modes set a fixed cabin temperature after one operation, rather than dynamic adjustment, which causes battery power consumption and running mileage of the bus.

[0004] In addition, the driver's frequent operation of the air-conditioning panel will affect the driver's concentration and pose certain safety hazards. Summary of the invention

[0005] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides a method and system for adjusting the temperature inside a bus. In remote control mode, when in economic mode, the air-conditioning controller adjusts the set temperature inside the bus according to the economic operation curve and the temperature outside the bus; when the mode is in comfort mode, the air-conditioning controller adjusts the set temperature inside the bus according to the comfort operation curve and the temperature outside the bus; the set temperature inside the bus is dynamically adjusted through the set operation curve and the temperature outside the bus, thereby improving the comfort inside the bus and energy saving and consumption reduction of the vehicle.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A first aspect of the present invention provides a method for adjusting the temperature inside a passenger car, comprising the following steps:

[0008] Get the air conditioning control mode of the bus in its current state;

[0009] When the bus air conditioner is in remote control mode, the outside temperature is obtained, and the inside set temperature corresponding to different outside temperature ranges is obtained by using the economy mode curve or the comfort mode curve, and the air conditioner operation is controlled according to the obtained inside set temperature;

[0010] Among them, when the temperature outside the car is within the set temperature range, the radiator at the bottom of the car will work. After the radiator heats up to the set temperature and continues to work for a set period of time, the air conditioning heat pump unit is controlled to work.

[0011] Furthermore, different outside temperature ranges include:

[0012] The current outside temperature is T;

[0013] The first interval S1 is -13℃≤T;

[0014] The second interval S2 is -13℃≤T<-10℃;

[0015] The third interval S3 is -10℃≤T<17℃;

[0016] The fourth interval S4 is 7℃≤T<24℃;

[0017] The fifth interval S5 is when 24℃≤T<35℃;

[0018] The sixth interval S6 is 35°C≤T.

[0019] Furthermore, when the outside temperature is within the range of S1-S3, the radiator at the bottom of the vehicle compartment starts working, and after the radiator is heated to a set temperature and continues to work for a set period of time, the air conditioning heat pump unit starts working.

[0020] Furthermore, when the outside temperature is within the S4 range, the air conditioner only performs ventilation.

[0021] Furthermore, when the outside temperature is within the range of S5-S6, the air conditioner cools the cabin.

[0022] Furthermore, when the remote control mode is invalid, the control mode is manually set.

[0023] Furthermore, the horizontal axis of the economic mode curve is the outside temperature of the vehicle, and the vertical axis is different set temperatures inside the vehicle.

[0024] Furthermore, the horizontal axis of the comfort mode curve is the outside temperature of the vehicle, and the vertical axis is different set temperatures inside the vehicle.

[0025] Furthermore, the same vehicle exterior temperature corresponds to different vehicle interior set temperatures in the economy mode curve and the comfort mode curve.

[0026] The second aspect of the present invention provides a passenger car in-car temperature control system, comprising a remote monitoring platform, a vehicle-mounted monitoring terminal and an air-conditioning controller which are communicatively connected in sequence, and the air-conditioning controller is respectively connected to an air-conditioning control panel, a radiator at the bottom of the car and an actuator of the air-conditioning system.

[0027] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0028] 1. By using the economy mode curve and the comfort mode curve, each set of collected outside temperatures corresponds to a different in-car set temperature. The vehicle air conditioner performs temperature adjustment according to different in-car set temperatures in the economy mode or comfort mode. The economy mode curve and the comfort mode curve can be determined by pre-calibration, which can better achieve a balance between riding experience and energy consumption.

[0029] 2. The collected outside temperature is divided into different temperature ranges, and the air conditioner performs different actions in different temperature ranges. For example, when the temperature is below a certain temperature, the chassis heater is used to quickly increase the cabin temperature, while the air conditioner maintains the heated temperature through operation, which can save the power consumption of the PTC heater in the air-conditioning system to a certain extent, thereby reducing the energy consumption of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0031] Figure 1 is a schematic diagram of a process for adjusting the temperature inside a bus provided by one or more embodiments of the present invention;

[0032] Figure 2 is a schematic diagram of a temperature control system for a passenger car provided by one or more embodiments of the present invention;

[0033] Figure 3 It is a schematic diagram of the temperature ranges inside and outside the vehicle corresponding to the economic curve / comfort curve provided by one or more embodiments of the present invention. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0036] It should be noted that the terms herein are only intended to describe specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] As introduced in the background technology, electric buses use air conditioning for temperature adjustment in two modes: manual adjustment and automatic adjustment. In the manual adjustment mode, after the cabin temperature is manually set, the air conditioning controller performs frequency conversion adjustment according to the temperature difference between the inside and outside of the car, and maintains near the set temperature after approaching the set temperature; in the automatic adjustment mode, the driver first selects the automatic mode on the air conditioning panel, and the controller will lock the cabin set temperature as a fixed value. At this time, the air conditioning controller also performs frequency conversion adjustment according to the temperature difference between the inside and outside of the car. However, both methods have defects. Both manual adjustment and automatic adjustment modes set a fixed cabin temperature after one operation, rather than dynamic adjustment, which causes the battery power consumption and running mileage of the bus. At the same time, the driver's frequent operation of the air conditioning panel will affect the driver's attention and there are certain safety hazards.

[0038] Therefore, the following embodiment provides a method and system for adjusting the temperature inside a bus. When the control mode is a remote control mode, a specific mode is obtained. When the specific mode is an economic mode, the air-conditioning controller adjusts the set temperature inside the bus according to the economic operation curve and the outside temperature. When the mode is a comfort mode, the air-conditioning controller adjusts the set temperature inside the bus according to the comfort operation curve and the outside temperature. The method realizes dynamic adjustment of the set temperature inside the bus through the set operation curve and the outside temperature, thereby improving the comfort inside the bus and energy saving and consumption reduction of the vehicle.

[0039] Embodiment 1:

[0040] like Figure 1 As shown, a method for adjusting the temperature inside a passenger car comprises the following steps:

[0041] Get the control mode of the bus air conditioner. When the remote control mode is valid, determine whether it is the economy mode or the comfort mode. When the remote control mode is invalid, set the mode manually, and adjust the temperature in the car manually according to the driver's setting.

[0042] When in economic mode, the temperature difference between the set temperature inside the car and the temperature outside the car is small, the temperature inside the car cools down / heats up slowly, and the set temperature inside the car is automatically adjusted according to the economic mode curve. The horizontal axis of the economic mode curve is the outside temperature, and the vertical axis is different set temperatures inside the car.

[0043] When in comfort mode, the temperature difference between the set temperature inside the car and the temperature outside the car is large, the temperature inside the car drops / rises quickly, and the set temperature inside the car is automatically adjusted according to the comfort mode curve. The horizontal axis of the comfort mode curve is the outside temperature, and the vertical axis is different set temperatures inside the car.

[0044] The curves in the economy mode and the comfort mode divide different outside temperatures into six temperature ranges. This embodiment provides one set of temperature ranges, specifically:

[0045] Outside temperature: -13℃≤T is the first interval S1;

[0046] The outside temperature is -13℃≤T<-10℃, which is the second interval S2;

[0047] The outside temperature is -10℃≤T<17℃, which is the third interval S3;

[0048] The vehicle outside temperature is 17℃≤T<24℃, which is the fourth interval S4;

[0049] The vehicle outside temperature is 24℃≤T<35℃, which is the fifth interval S5;

[0050] The vehicle outside temperature is 35°C ≤ T, which is the sixth zone S6.

[0051] When the outside temperature is within the range of S1-S3, the radiator at the bottom of the car is controlled to operate to quickly heat up the car, and the air conditioning heat pump is controlled to operate to maintain the temperature inside the car.

[0052] When the outside temperature is within the S4 range, the air conditioner only provides ventilation.

[0053] When the outside temperature is within the range of S5-S6, the air conditioner is controlled to cool the cabin.

[0054] In the curves of the economy mode and the comfort mode (referred to as the economy curve / comfort curve), different outside temperatures correspond to different set temperatures inside the car, such as Figure 3 As shown, for example, when the outside temperature is -15℃, the corresponding interior set temperature is about 15℃, the curve of the comfort mode is slightly higher than 15℃ and the curve of the economy mode is slightly lower than 15℃; when the outside temperature is 30℃, the interior set temperatures corresponding to the curves of the economy mode and the comfort mode are both 25℃; after the outside temperature is higher than 30℃, the interior set temperature corresponding to the curve of the comfort mode is slightly lower than that of the economy mode.

[0055] There are differences in the economic mode and comfort mode curves corresponding to buses of different specifications and models and air conditioners. Figure 3 The curve shown is an example.

[0056] When the mode is economy mode, the air-conditioning controller adjusts the set temperature in the car according to the economic operating curve and the outside temperature; when the mode is comfort mode, the air-conditioning controller adjusts the set temperature in the car according to the comfort operating curve and the outside temperature; it realizes dynamic adjustment of the set temperature in the car through the set operating curve and the outside temperature, thereby improving the comfort in the car and energy saving and consumption reduction of the vehicle.

[0057] like Figure 3 As shown, the economic mode curve and the comfort mode curve of this embodiment are divided into 6 intervals, each interval has a different heating and cooling gradient, and the in-vehicle set temperature is a different constant value under different outside temperature and different setting modes.

[0058] By setting the economy mode curve / comfort mode curve, the set temperature in the car is automatically adjusted according to the changes in the outside temperature, rather than a fixed temperature point, which reduces the uncertainty of human operation and improves comfort.

[0059] In the S1-S3 range, the radiator at the bottom of the car is first controlled to work, and the car is heated quickly. Then the air conditioning heat pump works to maintain the temperature inside the car. The radiator at the bottom of the car has a relatively large heat transfer area, which can send most of the generated heat to the interior of the car with heating needs, reducing the frequency of use of the PTC heater in the air conditioner and reducing the energy consumption of the whole vehicle.

[0060] By using the economy mode curve and the comfort mode curve, each set of collected outside temperature corresponds to a different in-car set temperature. The car air conditioner performs temperature adjustment according to different in-car set temperatures in the economy mode or comfort mode. The economy mode curve and the comfort mode curve can be determined by pre-calibration, which can better achieve a balance between riding experience and energy consumption.

[0061] The collected outside temperature is divided into different temperature ranges, and the air conditioner performs different actions in different temperature ranges. For example, when the temperature is below a certain temperature, the chassis heater is used to quickly increase the cabin temperature, while the air conditioner maintains the heated temperature through operation. This can save the power consumption of the PTC heater in the air-conditioning system to a certain extent, thereby reducing the energy consumption of the entire vehicle.

[0062] Embodiment 2:

[0063] like Figure 2 As shown, a passenger car in-car temperature control system includes a remote monitoring platform, an on-board monitoring terminal, an air conditioning controller, an air conditioning control panel, and air conditioning system execution components such as a compressor and a fan. The remote monitoring platform can send control instructions to the on-board monitoring platform, and the on-board monitoring terminal transmits the instructions to the air conditioning controller through the CAN line, and finally controls the compressor and the fan to act according to the instructions.

[0064] By setting the mode through the remote monitoring platform, the driver does not need to manually operate the air-conditioning panel while driving, thus improving driving safety.

[0065] The remote monitoring platform can select the economic mode curve / comfort mode curve according to the vehicle's operating routes, taking into account both passenger comfort and vehicle energy saving and consumption reduction.

[0066] By using the economy mode curve and the comfort mode curve, each set of collected outside temperature corresponds to a different in-car set temperature. The car air conditioner performs temperature adjustment according to different in-car set temperatures in the economy mode or comfort mode. The economy mode curve and the comfort mode curve can be determined by pre-calibration, which can better achieve a balance between riding experience and energy consumption.

[0067] The collected outside temperature is divided into different temperature ranges, and the air conditioner performs different actions in different temperature ranges. For example, when the temperature is below a certain temperature, the chassis heater is used to quickly increase the cabin temperature, while the air conditioner maintains the heated temperature through operation. This can save the power consumption of the PTC heater in the air-conditioning system to a certain extent, thereby reducing the energy consumption of the entire vehicle.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for regulating the temperature in a passenger car, characterized in that: The following steps are involved: Get the air conditioning control mode of the bus in its current state; When the bus air conditioner is in remote control mode, the outside temperature is obtained, and the inside set temperature corresponding to different outside temperature ranges is obtained by using the economy mode curve or the comfort mode curve, and the air conditioner operation is controlled according to the obtained inside set temperature; Among them, when the temperature outside the car is within the set temperature range, the radiator at the bottom of the car will work. After the radiator heats up to the set temperature and continues to work for a set period of time, the air conditioning heat pump unit is controlled to work.

2. A method for regulating the temperature in a passenger car according to claim 1, characterized in that: Different outside temperature ranges, including: The current outside temperature is T; The first interval S1 is -13℃≤T; The second interval S2 is -13℃≤T<-10℃; The third interval S3 is -10℃≤T<17℃; The fourth interval S4 is 7℃≤T<24℃; The fifth interval S5 is when 24℃≤T<35℃; The sixth interval S6 is 35°C≤T.

3. A method for regulating the temperature in a passenger car as claimed in claim 2, characterized in that: When the outside temperature is within the range of S1-S3, the radiator at the bottom of the car will work. After the radiator heats up to the set temperature and continues to work for a set period of time, the air conditioning heat pump unit will work.

4. A method for regulating the temperature in a passenger car as claimed in claim 2, characterized in that: When the outside temperature is within the S4 range, the air conditioner only provides ventilation.

5. A method for regulating the temperature in a passenger car as claimed in claim 2, characterized in that: When the outside temperature is within the range of S5-S6, the air conditioner cools the cabin.

6. A method for regulating the temperature in a passenger car according to claim 1, characterized in that: When the remote control mode is invalid, set the control mode manually.

7. A method for regulating the temperature in a passenger car according to claim 1, characterized in that: The abscissa of the economic mode curve is the outside temperature of the vehicle, and the ordinate is different set temperatures inside the vehicle.

8. A method for regulating the temperature in a passenger car as claimed in claim 1, characterized in that: The horizontal coordinate of the comfort mode curve is the outside temperature of the vehicle, and the vertical coordinate is different set temperatures inside the vehicle.

9. A method for regulating the temperature in a passenger car as claimed in claim 1, characterized in that: The same outside temperature corresponds to different in-vehicle set temperatures in the economy mode curve and the comfort mode curve.

10. A passenger car interior temperature control system, characterized in that: A method for adjusting the temperature inside a passenger car is used to implement the method described in any one of claims 1 to 9, comprising a remote monitoring platform, a vehicle-mounted monitoring terminal and an air-conditioning controller which are communicatively connected in sequence, wherein the air-conditioning controller is respectively connected to an air-conditioning control panel, a radiator at the bottom of the vehicle compartment and an actuator of the air-conditioning system.

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