Heating and defrosting system for passenger compartment of electric vehicle

Abstract

The utility model provides a heating and defrosting system for a passenger compartment of an electric vehicle, which comprises pressure sensors configured at seats and used for sensing the gravity of passengers, and seat controllers or domain controllers configured at the bottom of the passenger compartment and used for collecting signals acquired by the pressure sensors at the seats, the pressure sensor is in signal connection with the seat controller or the domain controller, and the seat controller or the domain controller is in signal connection with the heating modules of the multiple subareas in the passenger compartment of the electric vehicle. The electric vehicle passenger compartment heating and defrosting system is simple and reasonable in structure and high in integrity, the heating system is reconstructed with the accurate requirement for heating and defrosting of an electric vehicle passenger compartment as the guide, heating and defrosting modes such as heating carpets and electric heating glass are introduced, zoned heating is designed, sensors such as pressure, temperature and rainfall are arranged, energy waste caused by invalid heating is reduced, and the electric vehicle passenger compartment heating and defrosting system is suitable for popularization and application. The heating and defrosting accuracy is improved, the endurance anxiety of heating of the electric vehicle in winter is relieved, and the heating and defrosting efficiency of the electric vehicle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, especially to the technical field of automobile heating, in particular to a passenger cabin heating and defrosting system for electric vehicle. BACKGROUND

[0002] At present, the automobile air conditioning system in winter low temperature environment includes heat pump air conditioner or non heat pump air conditioner, no matter how many the number of people in the car is, the driver and passenger are in the position of passenger cabin, the warm air for obtaining heat all adopts the mode that all components in the passenger cabin are heated and warmed, including the whole set of seat, the car carpet, the instrument desk, the auxiliary instrument desk, the door trim, the ceiling, the trunk and the people and articles in the passenger cabin. Such heating mode does not conform to the actual personnel distribution and heating demand, lacks precision, has a large amount of invalid heating, causes large heating power consumption in winter low temperature car, obvious energy waste, and seriously affects the vehicle endurance.

[0003] Moreover, the components of the existing air conditioning heating system contain many parts, have high single vehicle cost, heavy system quality, high development and mold cost, large space occupation, many NVH (Noise, Vibration, Harshness, noise, vibration and harshness) problems, and affect the use efficiency of the whole automobile. UTILITY MODEL CONTENT

[0004] In view of this, the utility model aims to design a passenger cabin heating and defrosting system for electric vehicle, reconstruct the heating system according to the precise demand of passenger cabin heating and defrosting of electric vehicle, introduce heating carpet and electric heating glass and other heating and defrosting modes, design zoned heating, set pressure, temperature, rainfall and other sensors, build a new heating and defrosting mode, reduce energy waste caused by invalid heating, improve heating and defrosting precision, improve electric vehicle endurance, relieve the endurance anxiety of electric vehicle driver and passenger in winter heating, and improve the use efficiency of electric vehicle heating and defrosting.

[0005] The utility model provides a passenger cabin heating and defrosting system for electric vehicle, which comprises: a pressure sensor configured at each seat for sensing the gravity of passengers, a seat controller or domain controller configured at the bottom of the passenger cabin for collecting signals collected by the pressure sensor at each seat, the pressure sensor is signal connected with the seat controller or domain controller, and the seat controller or domain controller is signal connected with heating modules of multiple zoned areas in the passenger cabin of the electric vehicle.

[0006] The electric vehicle passenger cabin heating and defrosting system collects personnel gravity distribution through the configuration of a pressure sensor, determines personnel distribution through the configuration of a seat controller or domain controller, and is oriented to the precise needs of electric vehicle passenger cabin heating and defrosting, designs zoned heating, constructs a new heating mode through identification sensors, reduces energy waste caused by invalid heating, improves heating precision, improves electric vehicle endurance, eliminates the endurance anxiety of electric vehicle drivers and passengers in winter heating, and improves the use efficiency of electric vehicle heating.

[0007] Preferably, the electric vehicle passenger cabin heating and defrosting system cancels part of the components of the traditional passenger cabin heating system, including: a heater support, a PTC electric heater, an expansion kettle and its support, a water pump and its support, a liquid cooling condenser, an air pipe, a water pump inlet pipe, a water pump outlet pipe, a warm air outlet pipe, and a heater inlet pipe.

[0008] Preferably, the electric vehicle passenger cabin heating and defrosting system cancels part of the components of the traditional air conditioning defrosting and demisting system, including: a warm air core, a mode motor, a track disc and a connecting rod, a defrosting temperature sensor, and a foot blowing air duct temperature sensor.

[0009] Preferably, the electric vehicle passenger cabin heating and defrosting system cancels or adjusts the traditional air conditioning box and air duct, wherein the canceled components include: front row left / right foot blowing air ducts, defrosting air ducts, and rear row left / right foot blowing air ducts; and the adjusted components include: a distribution box, a rear row blowing face, an intermediate transition air duct, a rear row blowing face, a rear air outlet air duct, and a rear row blowing face.

[0010] Further, the heating module includes: a seat cushion heating pad arranged on a seat cushion, a backrest heating pad arranged in a seat backrest, a heating carpet arranged in front of each seat, a steering wheel heating element arranged on a main driver steering wheel, and electric heating glass arranged on a vehicle window; the seat cushion heating pad, the backrest heating pad, the heating carpet, the steering wheel heating element, and the electric heating glass are respectively electrically connected to a vehicle body harness.

[0011] The utility model reduces the parts required by the heating system, reduces the cost of single vehicle, reduces the system quality, reduces the development and die cost, reduces the occupied space, reduces NVH problem, reestablishes the heating system, introduces heating carpet and electric heating glass and other heating and defrosting modes, avoids energy waste caused by invalid heating, reduces winter low temperature power consumption, improves the endurance of the electric vehicle, and completely eliminates the endurance anxiety of the electric vehicle driver and passenger in winter heating.

[0012] Further, the heating carpet comprises, from top to bottom, a nylon tufted soft surface layer, an EVA re-coating layer, a graphene heating film or electric heating wire layer, a PU foaming layer, the graphene heating film or electric heating wire layer is connected with the automobile whole vehicle body wire harness through a power supply wire, and the graphene heating film or electric heating wire layer is connected with the seat controller or domain controller through a signal line.

[0013] The nylon tufted soft surface layer has the characteristics of flame retardation, antistatic property and high temperature resistance.

[0014] The EVA re-coating layer adopts thermoplastic plastic and has good heat conduction performance and is used to maintain the profile of the carpet.

[0015] The PU foaming layer is an insulating and heat insulating layer, the PU foaming material has the advantages of good shock absorption NVH effect, good heat preservation and insulation performance, good physical properties, good flexibility, high tensile strength and good air permeability, so that heat transmission to the cabin bottom is avoided and heat is maintained.

[0016] The graphene heating film is made by chemical vapor deposition of single-layer carbon atoms, which makes the conductive material and the film-shaped substrate form an integral whole, and then an insulating protective layer is covered. In the case of ensuring insulation, it is fixed on the non-woven fabric by a shaped glue; the surface of the graphene heating film adopts high molecular resin, which is soft, safe and practical, foldable, non-toxic and harmless material, green and environmentally friendly; it can resist high temperature of 210 DEG C, acid and alkali, IPX7 level waterproof, reach V2 level flame retardant, and is a silent product.

[0017] The graphene heating film has the characteristics of ultra-thin, soft and strong conductivity. Compared with traditional electric heaters, the graphene heating film has higher efficiency and lower energy consumption. The relatively low power consumption of the graphene heating film is mainly due to its unique conductive properties. Graphene is a material with high conductivity, and its conductivity can reach several thousand S / m, which is more than 200 times that of copper. The graphene heating film can achieve the same heating effect at a lower voltage, thereby reducing energy consumption. The ultra-thin design of the graphene heating film can quickly transfer heat to the heated object, improve the heating efficiency, and reduce the energy consumption.

[0018] The graphene heating film has low heat loss. The graphene heating film has good heat conduction performance and low heat loss, which can more effectively convert electrical energy into heat energy and reduce energy consumption.

[0019] The graphene heating film has high safety. The graphene heating film can adjust the temperature by controlling the current and voltage, avoiding safety problems caused by excessive current.

[0020] Further, the electric vehicle passenger cabin heating and defrosting system further comprises: an outside temperature sensor and a rain light sensor arranged outside the passenger cabin; the outside temperature sensor and the rain light sensor are respectively connected to the seat controller or the domain controller in signal, and are respectively connected to the automobile body wire harness in electricity.

[0021] According to the temperature collection signal of the outside temperature sensor and the rain collection signal of the rain light sensor, the electric heating of the seat, the foot mat and the main driver steering wheel with personnel distribution can be started according to the corresponding heating strategy, so as to guarantee the heating demand of the driver and passenger.

[0022] Further, the electric vehicle passenger cabin heating and defrosting system further comprises: an inside temperature sensor arranged inside the passenger cabin; the inside temperature sensor is connected to the seat controller or the domain controller in signal, and is connected to the automobile instrument wire harness in electricity.

[0023] According to the temperature collection signal of the inside temperature sensor, in combination with the temperature collection signal of the outside temperature sensor and the rain light sensor, the electric heating of the electric heating glass can be started according to the corresponding heating strategy, so as to guarantee the defrosting demand of the passenger cabin.

[0024] Further, the electric heating glass comprises: front windshield heating glass, front row side window heating glass, second row side window heating glass and rear windshield heating glass according to the setting position.

[0025] According to the outside temperature sensor signal and the rain light sensor signal, the electric heating glass at the corresponding position can be started according to the corresponding heating strategy, so as to guarantee the clear vision of the driver.

[0026] Further, the electric vehicle passenger cabin heating and defrosting system further comprises: a central control screen (cabin controller) arranged in the front row in the passenger cabin; the central control screen is connected to the seat controller or the domain controller in signal.

[0027] Through the operation of the central control screen, the user can select to control the heating elements of the seat controller or the domain controller driven seat and carpet, and the electric heating glass. Specifically, the user can open or close the heating elements at different positions according to the demand in the central control screen operation interface or through the language mode.

[0028] Further, the electric vehicle passenger cabin heating and defrosting system further comprises: a gateway arranged in the passenger cabin; the gateway is connected to the seat controller or the domain controller in signal.

[0029] Specifically, the gateway routes and forwards the signal information between each domain of the automobile, such as the power domain (safety domain), the intelligent information domain (cabin domain) and the body domain (body electronic domain) according to the communication protocol.

[0030] The heating and defrosting method of the electric vehicle passenger cabin heating and defrosting system in an actual application comprises:

[0031] The vehicle exterior temperature sensor is connected to the existing air conditioner controller of the automobile through the automobile whole vehicle body wire harness, the vehicle interior temperature sensor is connected to the existing air conditioner controller of the automobile through the instrument wire harness, and the air conditioner controller is connected to the power domain network of the whole vehicle.

[0032] According to the temperature data signal collected by the vehicle exterior temperature sensor and the rainfall data signal collected by the rainfall light sensor, the heating module is started according to the corresponding heating strategy, the seat, the foot mat and the steering wheel of the person staying are electrically heated, and the heating demand of the driver and the passenger is ensured.

[0033] According to the signal collected by the vehicle exterior temperature sensor and the signal collected by the rainfall light sensor, the heating module is started according to the corresponding heating strategy, the electric heating glass is electrically heated, the heating and defrosting and demisting are performed at the same time, and the clear vision of the driver is ensured.

[0034] Further, the electric vehicle passenger cabin heating and defrosting method further comprises: distributing the central control screen (cabin controller) in the intelligent information domain of the whole vehicle, connecting the rainfall light sensor to the domain controller, connecting the domain controller to the vehicle body domain network of the whole vehicle, and controlling and driving the heating elements of the seat and the carpet through the operation of the domain controller by the central control screen.

[0035] Compared with the existing air conditioning heating mode, the technical scheme of the heating and defrosting system of the utility model has the following advantages:

[0036] 1. The cruising range is greatly improved.

[0037] 2. The weight of the whole vehicle is reduced.

[0038] 3. The cost of the whole vehicle is reduced.

[0039] 4. The installation of multiple parts and multiple fasteners is reduced, and the production rhythm is shortened.

[0040] 5. The size of the instrument desk is reduced, the space of the front row is larger, and the modeling and layout can be more flexible.

[0041] 6. Due to the reduction of the number of parts, the development and management cost is greatly reduced.

[0042] 7. Compared with the existing air conditioning heating mode, the stability of the heating and defrosting system of the utility model is better, and the NVH noise problem caused by the operation of the traditional air conditioner box is eliminated.

[0043] Compared with the prior art, the utility model has the beneficial effects that:

[0044] The electric vehicle passenger cabin heating and defrosting system structure assembly provided by the utility model is simple and reasonable, has high integrity, is oriented to the accurate requirement of electric vehicle passenger cabin heating and defrosting, reconstructs a heating system, introduces heating carpet and electric heating glass and other heating and defrosting modes, designs partition heating, sets pressure, temperature, rainfall and other sensors, constructs a novel heating and defrosting mode, reduces energy consumption waste caused by invalid heating, improves heating and defrosting accuracy, improves electric vehicle endurance, relieves endurance anxiety of electric vehicle drivers and passengers in winter, improves electric vehicle heating and defrosting use efficiency, has good applicability, and has wide popularization and application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0045] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the present utility.

[0046] In the drawings:

[0047] Figure 1 It is a structure schematic view of an electric vehicle passenger cabin heating and defrosting system of the utility model;

[0048] Figure 2 It is an electrical schematic diagram of the electric vehicle passenger cabin heating and defrosting method of the utility model embodiment;

[0049] Figure 3 It is a heating logic diagram of the electric vehicle passenger cabin heating and defrosting method of the utility model embodiment;

[0050] Figure 4 It is a defrosting and demisting logic diagram of the electric vehicle passenger cabin heating and defrosting method of the utility model embodiment;

[0051] Figure 5 It is a schematic view of parts involved in a traditional air conditioner defrosting and demisting system including an air conditioner box and an air duct.

[0052] The marks in the drawing indicate that:

[0053] 01 - Outside temperature sensor; 02 - Front windshield heating glass; 03 - Rain sensor; 04 - Steering wheel; 041 - Steering wheel heating element; 05 - Center control screen; 06 - Inside temperature sensor; 07 - Air conditioner controller; 08 - Gateway; 09 - Front carpet; 091 - Nylon tufted soft face layer; 092 - EVA re-coat layer; 093 - Graphene heating film or electric heating wire layer; 094 - PU foam layer; 010 - Front seat; 0101 - Backrest heating pad; 0102 - Cushion heating pad; 0103 - Pressure sensor; 011 - Seat controller or domain controller; 012 - Second row carpet; 013 - Second row seat; 1 - Heater bracket; 2 - PTC electric heater; 3 - Expansion water kettle and its bracket; 4 - Water pump and its bracket; 5 - Liquid cooling condenser; 6 - Air pipe; 7 - Water pump inlet pipe; 8 - Water pump outlet pipe; 9 - Warm air outlet pipe; 10 - Heater inlet pipe; 11 - Warm air core; 12 - Mode motor; 13 - Track disc, connecting rod; 14 - Defrost temperature sensor; 15 - Foot blowing air duct temperature sensor; 16 - Distribution box; 17 - Front row left / right foot blowing air duct; 18 - Defrost air duct; 19 - Rear row left / right foot blowing air duct; 20 - Middle transition air duct; 21 - Rear air outlet air duct; 22 - Rear mode air duct. DETAILED DESCRIPTION

[0054] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to various alternative embodiments as well. The following description is not limited to the exemplary embodiments, but rather, is applicable to any apparatus and method consistent with the present disclosure. The following exemplary embodiments are described herein with reference to the figures, in which like reference numbers are used to refer to like elements throughout.

[0055] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used in the present disclosure and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0056] It will be understood that, although the terms first, second, third, etc. can be used herein to describe various information, the information should not be limited by these terms. These terms are used only to distinguish one piece of information from another. For example, a first information could be termed a second information, and, similarly, a second information could be termed a first information without departing from the scope of the present disclosure. As used herein, the term "if' can be construed to mean "when" or "upon" or "in response to determining" terms that indicate some manner of correlation or relation.

[0057] The utility model embodiment provides a kind of electric vehicle passenger cabin heating defrosting system, refer to Figure 1 As shown in, including: the pressure sensor 0103 being configured at each seat, seat controller or domain controller 011 being configured at the bottom of passenger cabin, outside temperature sensor 01 being configured outside passenger cabin, rain amount light sensor 03, inside temperature sensor 06 being configured in passenger cabin, back heating pad piece 0101 in the backrest of cushion heating pad piece 0102 and backrest being set in cushion (the main driver seat 010 and second row seat 013 are provided with cushion heating pad piece 0102 and back heating pad piece 0101 in this embodiment), carpet (the carpet includes main driver carpet 09 and second row carpet 012 in this embodiment) being configured in front of each seat, carpet includes that nylon tufted soft surface layer 091, EVA heavy coating layer 092, graphene heating film or electric heating wire layer 093, PU foaming layer 094 are sequentially arranged from top to bottom, steering wheel heating element 041 being configured in main driver steering wheel 04, electric heating glass being configured in vehicle window;

[0058] The seat controller or domain controller 011 is respectively connected with the pressure sensor 0103, outside temperature sensor 01, inside temperature sensor 06 and rain amount light sensor 03 signal;Seat controller or domain controller 011 collects the signal of each seat pressure sensor 0103 acquisition, determines personnel distribution;The seat controller or domain controller 011 is respectively connected with the cushion heating pad piece 0102, back heating pad piece 0101, graphene heating film or electric heating wire layer 093, steering wheel heating element 041 and electric heating glass electric connection.

[0059] The electric vehicle passenger cabin heating defrosting system further includes: the central control screen 05 (cabin controller) being set in front row in passenger cabin, gateway 08 being set in passenger cabin.Through operating central control screen 05, user can select to control seat controller or domain controller to drive seat and carpet, electric heating glass heating element, can be opened or closed according to demand, heating element of different position in the operation interface of central control screen 05 or through language mode.Gateway 08 is routed and forwarded according to communication protocol, signal information between each domain of automobile, such as power domain (safety domain) of automobile, intelligent information domain (cabin domain), vehicle body domain (vehicle body electronic domain).

[0060] The electric vehicle passenger cabin heating defrosting system of the utility model embodiment cancels the parts involved in traditional passenger cabin heating system, including the following parts (see Figure 5 As shown in): heater support 1, PTC electric heater 2, expansion kettle and its support 3, water pump and its support 4, liquid cooling condenser 5, air pipe 6, water pump inlet pipe 7, water pump outlet pipe 8, warm air outlet pipe 9, heater inlet pipe 10.

[0061] The electric vehicle passenger cabin heating and defrosting system of the utility model embodiment cancels the parts involved in the traditional air conditioner defrosting and defogging system, and comprises the following parts: a warm air core 11, a mode motor 12, a track disc and a connecting rod 13, a defrosting temperature sensor 14 and a foot blowing air duct temperature sensor 15.

[0062] The electric vehicle passenger cabin heating and defrosting system of the utility model embodiment cancels or adjusts the parts involved in the traditional air conditioner box and air duct, wherein the canceled parts include the following parts: front row left / right foot blowing air ducts 17, a defrosting air duct 18 and rear row left / right foot blowing air ducts 19.

[0063] The adjusted parts include the following parts: a distribution box 16, only the refrigeration blowing face is reserved; an intermediate transition air duct 20, only the rear row blowing face is reserved; a rear air outlet air duct 21, only the rear row blowing face is reserved; and a rear mode air duct 22, only the rear row blowing face is reserved.

[0064] The electric heating glass is arranged as a combination of one or more of the following: front windshield heating glass 02, front row side window heating glass, second row side window heating glass and rear windshield heating glass.

[0065] The heating and defrosting method of the electric vehicle passenger cabin heating and defrosting system in actual application is shown in FIG. 2. Figure 2

[0066] The vehicle outside temperature sensor 01 is connected to the existing air conditioner controller 07 of the automobile through the automobile whole vehicle body wire harness, the vehicle inside temperature sensor 06 is connected to the existing air conditioner controller 07 of the automobile through the instrument wire harness, and the air conditioner controller 07 is connected to the power domain network of the whole vehicle.

[0067] According to the temperature data signal collected by the vehicle outside temperature sensor 01 and the rainfall data signal collected by the rainfall light sensor 03, the heating module is started according to the corresponding heating strategy, and the seats, the foot pads and the steering wheel of the person staying are electrically heated to ensure the heating demand of the driver and the passenger.

[0068] According to the signal collected by the vehicle outside temperature sensor 01 and the signal collected by the rainfall light sensor 03, the heating module is started according to the corresponding heating strategy, and the electric heating glass is electrically heated to defrost and defog at the same time, so that the driver's vision is clear.

[0069] The central control screen 05 (cabin controller) is distributed in the intelligent information domain of the whole vehicle, the rainfall light sensor 03 is connected to the domain controller, the domain controller is connected to the vehicle body domain network of the whole vehicle, and the heating elements of the seats and the carpet are controlled and driven by operating the domain controller through the central control screen 05.

[0070] Preferably, the power domain, the vehicle body domain and the intelligent information domain are interconnected through the gateway 08. ​

[0071] Compared with the existing air conditioning heating mode, the heating defrosting system has the following advantages:

[0072] 1. The cruising range is greatly improved.

[0073] Example 1:

[0074] At 4℃ ambient temperature, 80kW.h of a certain vehicle, high-speed working condition 118km / h vehicle speed, respectively driving 40km;

[0075] 1.1. Without air conditioning: the vehicle power consumption is 21.2kW.h / 100km, and 80kW.h can drive 377km;

[0076] 1.2. The heat pump air conditioner is started: AUTO 23.5℃, the vehicle power consumption is 25.4kW.h / 100km, and 80kW.h can drive 315km;

[0077] 1.3. Using the heating method of the utility model: the vehicle power consumption of one passenger is 21.5kW.h / 100km, and 80kW.h can drive 372km;

[0078] The actual cruising range of the vehicle in winter is improved by 15.14%.

[0079] Example 2:

[0080] At 1℃ ambient temperature, 80kW.h of a certain vehicle, urban viaduct working condition 80km / h vehicle speed, respectively driving 30km;

[0081] 1.4. Without air conditioning: the vehicle power consumption is 15.0kW.h / 100km, and 80kW.h can drive 533km;

[0082] 1.5. The heat pump air conditioner is started: AUTO 23.5℃, the vehicle power consumption is 16.5kW.h / 100km, and 80kW.h can drive 485km;

[0083] 1.6. Using the heating method of the utility model: the vehicle power consumption of one passenger is 15.5kW.h / 100km, and 80kW.h can drive 516km;

[0084] The actual cruising range of the vehicle in winter is improved by 5.87%;

[0085] 2. The weight of the vehicle is reduced by about 7.5kg.

[0086] 3. The cost of the vehicle is reduced by about 930~1120yuan.

[0087] 4. The installation of 16 parts and nearly 30 fasteners is reduced, and the production rhythm is shortened by nearly 3min.

[0088] 5. The instrument desk X direction size is reduced by about 160mm, the front row space is larger, and the modeling and layout can be more flexible.

[0089] 6. Due to the reduction in the number of parts, the development and management costs are greatly reduced;

[0090] 7. Compared with the existing air conditioning heating method, the stability of the heating method of the utility model is better, and problems such as NVH noise caused by the operation of the air conditioning box are eliminated.

[0091] Application example

[0092] In an actual application example, the automatic mode is started by any one of the following four key modes:

[0093] 1. The virtual AUTO key of the central control screen;

[0094] 2. The physical AUTO key of the operation panel;

[0095] 3. The AUTO key in the mobile phone APP;

[0096] 4. The AUTO key of the language input.

[0097] The heating control logic of the application example is as follows (see Figure 3 shown):

[0098] The domain controller collects the indoor temperature, outdoor temperature, rain light sensor and AUTO command from above in the vehicle body domain, and determines that there is a heating demand according to the algorithm;

[0099] When the pressure sensor signal under each seat is received as "1" valid input, and the "1" time is maintained for more than 3s, the corresponding heating element is started to heat;

[0100] When the pressure sensor signal under each seat is detected to jump from "1" to "0", and the "0" time is maintained for more than 3s, the heating of all heating elements at the corresponding position is automatically turned off;

[0101] If AUTO is not opened, the user can select to turn on or turn off the heating element at the corresponding position according to the demand on the central control screen operation interface or through language interaction.

[0102] The defrosting and demisting logic is as follows (see Figure 4 shown):

[0103] The air conditioning controller collects the indoor temperature, outdoor temperature, rain light sensor and AUTO command from above in the power domain, and determines whether there is a defrosting and demisting demand according to the algorithm;

[0104] If AUTO is on, the air conditioner controller starts the front windshield heating and the side window heating simultaneously according to the calibration algorithm;

[0105] If AUTO is not on, the user can select to turn on or off the front windshield heating, the side window heating and the rear windshield heating according to the demand on the operation interface of the central control screen or through the language interaction mode.

[0106] The technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical schemes after the changes or replacements will fall within the protection scope of the present application.

[0107] The above description is only the preferred embodiments of the present application and is not used to limit the present application; for those skilled in the art, the present application can have various changes and variations. Any modification, replacement, improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An electric vehicle passenger cabin heating and defrosting system, characterized by, It comprises: A pressure sensor configured at each seat for sensing the weight of the passenger, a seat controller or domain controller configured at the bottom of the passenger cabin for collecting signals collected by the pressure sensor at each seat, the pressure sensor being in signal connection with the seat controller or domain controller, and the seat controller or domain controller being in signal connection with the heating module of the multiple partition areas in the passenger cabin of the electric vehicle.

2. The electric vehicle passenger cabin heating defrosting system of claim 1, wherein, The heating module comprises: a cushion heating pad arranged on the seat cushion, a backrest heating pad arranged in the seat backrest, a heating carpet arranged in front of each seat, a steering wheel heating element arranged on the steering wheel of the main driver, and an electric heating glass arranged on the window; the cushion heating pad, the backrest heating pad, the heating carpet, the steering wheel heating element and the electric heating glass are respectively electrically connected to the automobile whole vehicle body wiring harness.

3. The electric vehicle passenger cabin heating and defrosting system of claim 2, wherein, The heating carpet comprises a nylon tufted soft surface layer, an EVA re-coating layer, a graphene heating film or an electric heating wire layer, and a PU foaming layer arranged in sequence from top to bottom, the graphene heating film or the electric heating wire layer is connected with the automobile whole vehicle body wiring harness through a power supply line, and the graphene heating film or the electric heating wire layer is connected with the seat controller or the domain controller through a signal line.

4. The electric vehicle passenger cabin heating defrosting system of claim 1, wherein, It also comprises: An outside temperature sensor and a rain light sensor arranged outside the passenger cabin; The outside temperature sensor and the rain light sensor are respectively in signal connection with the seat controller or the domain controller, and the outside temperature sensor and the rain light sensor are respectively electrically connected to the automobile whole vehicle body wiring harness.

5. The electric vehicle passenger cabin heating defrosting system of claim 1, wherein, It also comprises: An inside temperature sensor arranged inside the passenger cabin, the inside temperature sensor being in signal connection with the seat controller or the domain controller, and the inside temperature sensor being electrically connected to the automobile instrument wiring harness.

6. The electric vehicle passenger cabin heating and defrosting system of claim 2, wherein, The electric heating glass comprises: front windshield heating glass, front row side window heating glass, second row side window heating glass and rear windshield heating glass.

7. The electric vehicle passenger cabin heating defrosting system of claim 1, wherein, It also comprises: A central control screen arranged in the front row of the passenger cabin, the central control screen being in signal connection with the seat controller or the domain controller.

8. The electric vehicle passenger cabin heating defrosting system of claim 7, wherein, It also comprises: A gateway arranged in the passenger cabin, the gateway being in signal connection with the seat controller or the domain controller.

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