WO2024016785A1 - 一种膝部送风***、控制方法及车辆 - Google Patents
一种膝部送风***、控制方法及车辆 Download PDFInfo
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- WO2024016785A1 WO2024016785A1 PCT/CN2023/091963 CN2023091963W WO2024016785A1 WO 2024016785 A1 WO2024016785 A1 WO 2024016785A1 CN 2023091963 W CN2023091963 W CN 2023091963W WO 2024016785 A1 WO2024016785 A1 WO 2024016785A1
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- WO
- WIPO (PCT)
- Prior art keywords
- knee
- blowing
- air
- mode
- gear
- Prior art date
Links
- 210000003127 knee Anatomy 0.000 title claims abstract description 173
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000007664 blowing Methods 0.000 claims abstract description 201
- 238000010438 heat treatment Methods 0.000 claims abstract description 54
- 238000005485 electric heating Methods 0.000 claims abstract description 46
- 238000004378 air conditioning Methods 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010257 thawing Methods 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 210000002414 leg Anatomy 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/03—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
- B60H1/034—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant from the cooling liquid of the propulsion plant and from an electric heating device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00207—Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00807—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a specific way of measuring or calculating an air or coolant temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00835—Damper doors, e.g. position control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00871—Air directing means, e.g. blades in an air outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/34—Nozzles; Air-diffusers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00207—Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
- B60H2001/00214—Devices in front of the passenger compartment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/34—Nozzles; Air-diffusers
- B60H2001/3471—Details of actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/34—Nozzles; Air-diffusers
- B60H2001/3485—Air temperature regulation
Definitions
- the invention belongs to the field of automotive technology and relates to a knee air supply system, a control method and a vehicle.
- the air-conditioning air outlet can meet the heating needs of the driver's head and feet, and the air volume at the knee position is relatively large. If it is low, there will be problems such as low knee temperature and poor air conditioning comfort, causing complaints. Based on the above existing technical problems, there are no relevant solutions yet, so there is an urgent need to find effective solutions to solve the above problems.
- the patent document CN212373110U discloses a vehicle air supply structure and a car, which mainly protects a structural device that can supply air to the user's legs from the side and better meet the heating and cooling needs of the user's legs.
- This patent cannot take care of the driver's right knee and does not have a heating device.
- the air outlet temperature of the knee is low and cannot meet the knee heating needs.
- the patent document CN211995084U discloses a leg heating device and system, which mainly protects a heating device that heats the leg area through an electric heating film installed in the car to improve the driver's driving comfort.
- This patent uses graphene far-infrared electric heating film, which is limited by the heating distance. If there is no air outlet for air conditioning, it cannot meet the knee heating needs.
- Patent document CN206465737U discloses a vehicle air conditioning system and a vehicle, which mainly protects a structural device that improves the comfort of the human knee by arranging knee air ducts and air outlets.
- This patent does not have a heating device and control method.
- the air outlet temperature from the knee is low and cannot meet the heating needs of the knee.
- the knee air outlet is controlled by adjusting the blade angle.
- the wind direction has poor operability.
- This patent arranges a knee air outlet on the left knee of the driver, which cannot meet the air outlet needs of the two knee positions.
- the technical problem to be solved by the present invention is to overcome the above-mentioned problems existing in the prior art and provide a knee air supply system, a control method and a vehicle.
- the purpose of the present invention is to provide a knee air supply system, a control method and a vehicle that are easy to operate, intelligent and energy-saving, which can meet the heating needs of the driver's knee position at different water temperatures, improve air conditioning comfort, and at the same time save energy consumption. , reduce vehicle fuel consumption.
- the invention provides a knee air supply system, a control method and a vehicle.
- the air duct on the left side of the blowing surface guides air to the position of the driver's knee.
- An electric damper structure is arranged at the entrance of the knee blowing air duct and is close to the air outlet of the knee blowing air duct. Wrapped with electric heating film, the knee-blowing air volume and temperature can be controlled by controlling the electric damper and heating power gear.
- the knee blowing function is divided into automatic mode and manual mode. The automatic mode of the knee blowing function needs to be turned on when the knee blowing automatic mode is turned on and the air conditioner is in heating mode.
- the manual mode of the knee blowing function can be turned on manually in both heating and cooling conditions of the air conditioner.
- the controller adjusts the damper position by analyzing the air conditioning mode to control the knee-blowing air volume, and adjusts the heating power gear in real time by analyzing the temperature of the knee-blowing air outlet to control the knee-blowing air outlet temperature.
- the knee blowing air volume is controlled according to the knee blowing air door position set by the driver, and the knee blowing air outlet temperature is controlled according to the knee blowing electric heating film power setting set by the driver.
- the knee-blowing air outlet of the present invention is designed into upper and lower parts, and different air outlet angles can be designed to take into account
- the wind is out at the knee position when the height is high.
- the present invention uses an electric heating film to heat the blower knee to discharge air, so that the driver can discharge the air from the blower knee. The extra heat gained helps improve the driver's air-conditioning comfort during the rising water temperature phase.
- a knee air supply system includes a face-blowing air duct, a knee-blowing air duct, a knee-blowing air outlet, a temperature sensor, an electric damper, and an electric heating film;
- the blowing surface air duct is used to take the air from the air conditioning box and flow it to the blowing surface and blowing knees;
- the knee blowing air duct is used to take air from the blowing surface air duct and flow to the blowing knee air outlet to discharge the air;
- the temperature sensor is arranged at the air outlet of the blower knee;
- An electric damper is arranged at the entrance of the knee-blowing air duct, and an electric heating film is wrapped near the outlet of the knee-blowing air duct.
- controller controls the knee-blowing air volume and air temperature by controlling the electric damper and heating power gear
- the controller adjusts the damper position by analyzing the air-conditioning mode to control the knee-blowing air volume, and adjusts the heating power gear in real time by analyzing the knee-blowing air outlet temperature to control the knee-blowing air outlet temperature.
- the air volume of the air duct on the driver's side near the door accounts for the total air volume of the air conditioner increased from 18% to 22%, of which the air outlet on the driver's side near the door accounts for 18%, and the two knee air outlets The total proportion is 4%;
- Two knee-blowing air ducts and knee-blowing air outlets are arranged on the left and right sides to meet the heating needs of the driver's left and right knees;
- the distance between the knee air outlet and the driver's knee is about 150mm, and the wind speed of the knee air outlet is ⁇ 5m/s;
- the knee air outlet is designed into upper and lower parts, and the air outlet angle is designed to meet the knee heating needs of drivers of different heights.
- one or two temperature sensors are arranged;
- the electric damper is set in 4 gears, namely 0 gear, 1 gear, 2 gear, and 3 gear, and the corresponding electric damper is opened.
- the degrees are 0, 30%, 50% and 100% respectively.
- the controller analyzes the status of the air conditioning mode and adjusts the corresponding electric damper position to control the knee blowing air volume to ensure the consistency of the knee blowing air volume and wind speed in different air conditioning modes;
- the knee blowing air volume is controlled according to the knee blowing electric damper position set by the driver as needed.
- the electric heating films are respectively wrapped on the outer surface of the air duct near the left and right knee blowing outlets to heat the air outlet from the blowing knee and control the temperature of the air outlet;
- the electric heating film power is set in 4 gears, namely 0 gear, 1 gear, 2 gear, and 3 gear.
- the corresponding power P is 0, 40W, 80W, and 100W respectively;
- the controller adjusts the power level of the electric heating film in real time according to the knee-blowing air outlet temperature T1 to control the knee-blowing air outlet temperature;
- the knee blowing electric heating film power level is set according to the driver's needs to control the knee blowing air outlet temperature.
- a knee air supply system control method includes the following steps:
- Step 1 The controller determines whether the air conditioning function is on; if so, go to step 2; if not, go to step 13;
- Step 2 The controller reads the knee blowing function control mode; if it is automatic mode, go to step 3; if it is manual mode, go to step 14;
- Step 3 The controller reads the operating status of the air conditioner; if it is in heating mode, go to step 4; if it is in cooling mode, go to step 5;
- Step 4 The controller reads the air conditioner mode; if the air conditioner is in the surface blowing mode, go to step 6; if the air conditioner is in the surface blowing and foot blowing mode, go to step 7; if the air conditioner is in the foot blowing mode , air blowing and defrosting at the same time, and defrosting air mode, go to step 8;
- Step 5 Set the knee-blowing electric damper to 0 gear and proceed to step 13;
- Step 6 Set the knee-blowing electric damper to 1st gear and proceed to step 9;
- Step 7 Set the knee-blowing electric damper to the 2nd gear and proceed to step 9;
- Step 8 Set the knee-blowing electric damper to 3rd gear and proceed to step 9;
- Step 9 The controller reads the knee air outlet temperature T1; if T1 ⁇ 40°C, go to step 10; if 40 ⁇ T1 ⁇ 50°C, go to step 11; if 50 ⁇ T1 ⁇ 60°C, go to step 12 ;If T1>60°C, go to step 13;
- Step 10 Set the electric heating film power to level 3;
- Step 11 Set the electric heating film power to level 2;
- Step 12 Set the electric heating film power to level 1;
- Step 13 Set the electric heating film power to 0;
- Step 14 Manually set the electric damper gear and heating power gear.
- the automatic mode of the knee-blowing function is turned on and the air conditioner is in heating mode.
- the manual mode of the knee-blowing function can be manually turned on in both the heating and cooling conditions of the air conditioner.
- a vehicle equipped with a knee ventilation system according to any one of claims 1 to 6.
- the present invention uses an electric heating film to heat the knee-blowing air outlet, so that the driver can obtain additional heat from the knee-blowing air outlet, which helps to improve the driver's air-conditioning comfort during the rising water temperature phase.
- the controller adjusts the power level of the electric heating film in real time according to the knee-blowing air outlet temperature T1 to control the knee-blowing air outlet temperature to meet the heating needs while reducing energy consumption; in the manual mode of the knee-blowing function, according to the driving
- the power level of the knee-blowing electric heating film can be set by the operator as needed to control the knee-blowing air outlet temperature.
- the present invention is an easy-to-operate, intelligent and energy-saving knee air supply system, control method and vehicle, which can meet the heating needs of the driver's knee position at different water temperatures, improve air conditioning comfort, save energy consumption and reduce the fuel consumption of the entire vehicle. .
- Figure 1 is a flow chart of a knee air supply system control method according to the present invention.
- Figure 2 is a schematic structural diagram of a knee air supply system according to the present invention.
- Figure 3a is a schematic diagram of the position of the knee air outlet
- Figure 3b is the second schematic diagram of the position of the knee air outlet
- Figure 4 is a schematic structural diagram 2 of a knee air supply system according to the present invention.
- Figure 5 is a schematic diagram 3 of the structure of a knee air supply system according to the present invention.
- the present invention provides a knee air supply system, a control method and a vehicle. Including controller, instrument panel, face-blowing air duct, knee-blowing air duct, knee-blowing air outlet, temperature sensor, electric damper, and electric heating film.
- the knee-blowing function is divided into automatic mode and manual mode.
- To turn on the automatic mode of the knee-blowing function two conditions must be met: the automatic knee-blowing mode is turned on and the air conditioner is in heating mode.
- the manual mode of the knee-blowing function can be used in both heating and cooling conditions of the air conditioner. Turn on manually.
- the blowing surface air duct is used to take the air from the air conditioning box and flow it to the blowing surface and the blowing knee.
- the proportion of duct air volume in the total air volume of the air conditioner increased from 18% to 22%, of which the air outlet on the driver's side near the door accounted for 18%, and the two knee air outlets accounted for 4% in total.
- the distance between the knee air outlet and the driver's knee is about 150mm. If the wind speed is low, the air cannot reach the knee position, and the knee heating performance cannot be guaranteed. Therefore, it is necessary to ensure that the wind speed of the knee air outlet is ⁇ 5m/ s.
- the blowing knee air duct is used to take air from the blowing surface air duct and discharge the air to the blowing knee air outlet. Since the position of the knee-blowing air outlet is low, it is extremely inconvenient to adjust the air outlet direction by adjusting the position of the knee-blowing air outlet blades.
- the present invention designs the knee-blowing air outlet into upper and lower parts, and can satisfy different heights through the design of the air outlet angle. The driver's knee heating needs are shown in Figure 3a and Figure 3b.
- the temperature sensor is arranged at the air outlet of the blower knee.
- One or two temperature sensors can be arranged. If one is arranged, it needs to be arranged at the knee air outlet on the left side of the driver because the temperature is cooler on the side closer to the door. If two are arranged, they need to be placed at the left and right knee air outlets respectively, and the average temperature of the two is taken.
- Car air conditioners are generally divided into 5 control modes, namely, surface blowing, surface blowing and foot blowing at the same time, foot blowing, foot blowing and defrosting at the same time, and defrosting.
- the proportions of surface air volume to the total air volume of the air conditioner in these five modes are 100%, 60%, 30%, 25% and 15% respectively.
- Two knee-blowing electric dampers are installed at the entrances of the left and right knee-blowing air ducts, as shown in Figures 4 and 5.
- the damper is set in 4 gears, namely 0 gear, 1st gear, 2nd gear, and 3rd gear, and the corresponding damper openings are 0, 30%, 50%, and 100% respectively.
- the controller analyzes the status of the air conditioning mode and adjusts the corresponding damper position to control the knee blowing air volume to ensure the consistency of the knee blowing air volume and wind speed in different air conditioning modes.
- the knee blowing air volume is controlled according to the knee blowing air door position set by the driver as needed.
- Electric heating films are wrapped on the outer surface of the air duct near the left and right knee blowing outlets respectively, as shown in Figure 5, and are used to heat the blowing knee air outlet and control the air outlet temperature. If placed far away from the air outlet, it will cause heat loss and energy waste. Due to different water temperatures, the knee-blowing air heating needs are different.
- the electric heating film power is set in 4 gears, namely 0 gear, 1 gear, 2 gear, and 3 gear.
- the corresponding power P is 0, 40W, 80W, and 100W respectively.
- the present invention uses an electric heating film to heat the blower knee to discharge air, so that the driver can discharge the air from the blower knee.
- the extra heat gained helps improve the driver's air-conditioning comfort during the rising water temperature phase.
- the controller adjusts the power level of the electric heating film in real time according to the temperature T1 of the knee blowing outlet. Control the temperature of the air outlet for the knee blowing to meet the heating needs while reducing energy consumption; in the manual mode of the knee blowing function, the temperature of the air outlet for the knee blowing electric heating film is controlled according to the power level of the knee blowing electric heating film set by the driver as needed.
- the controller determines whether the air conditioning function is turned on. If yes, go to step 2; if not, go to step 13
- the controller reads the knee blowing function control mode. If it is automatic mode, go to step 3; if it is manual mode, go to step 14
- the controller reads the operating status of the air conditioner. If it is in heating mode, go to step 4; if it is in cooling mode, go to step 5.
- the controller reads the air conditioning mode. If the air conditioner is in the surface blowing mode, go to step 6; if the air conditioner is in the surface blowing/foot blowing mode, go to step 7; if it is in other modes, go to step 8
- the controller reads the knee air outlet temperature T1. If T1 ⁇ 40°C, go to step 10; if 40 ⁇ T1 ⁇ 50°C, go to step 11; if 50 ⁇ T1 ⁇ 60°C, go to step 12; If T1>60°C, go to step 13
- the knee blowing function of the present invention is divided into automatic mode and manual mode;
- knee-blowing automatic mode To turn on the knee-blowing automatic mode, two conditions must be met: the knee-blowing automatic mode is turned on and the air conditioner is in heating mode;
- the knee blowing electric damper position and the electric heating film power position are controlled by analyzing the air conditioning mode and the knee blowing outlet temperature T1;
- the manual mode of the knee blowing function can be turned on manually under air conditioning heating and cooling conditions.
- the driver can set the knee blowing electric damper position and electric heating film power position as needed;
- the proportion of air volume in the air duct on the side of the driver near the door to the total air volume of the air conditioner is increased from 18% to 22%;
- the total air volume of the knee blower accounts for 4% of the total air volume of the air conditioner, and the wind speed of the knee blower is ⁇ 5m/s to ensure the knee heating performance;
- An electric damper is installed at the entrance of the knee-blowing air duct.
- the opening of the electric damper is set to 4 gears, and is not limited to 4 gears.
- the automatic mode of the knee blowing function it is associated with the air conditioning mode to ensure the consistency of the knee blowing air volume and wind speed in different modes;
- the knee-blowing air duct is wrapped with an electric heating film, which is used to heat the knee-blowing air supply temperature to ensure the knee heating performance;
- the electric heating film is arranged close to the air outlet of the blowing knee. If it is arranged far away from the air outlet of the blowing knee, it will cause heat loss and waste of energy consumption;
- the electric heating film power is set in 4 gears, not limited to 4 gears.
- the automatic mode of the knee blowing function it is related to the knee blowing outlet temperature T1, and the power can be adjusted in real time;
- the knee air duct and air outlet are divided into upper and lower parts.
- the air outlet angle is designed to take into account the heating needs of knees of different heights. There is no need to arrange blades to manually adjust the air outlet direction.
- a vehicle adopts the above-mentioned knee air supply system.
- a vehicle adopts the above knee air supply system control method.
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- Physics & Mathematics (AREA)
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- Combustion & Propulsion (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
本发明涉及一种膝部送风***、控制方法及车辆；膝部送风***，其包括吹面风道、吹膝风道、吹膝出风口，温度传感器、电动风门、电加热膜；吹面风道用于从空调箱体取风，流向吹面及吹膝出风；吹膝风道用于从吹面风道取风，流向吹膝出风口出风；温度传感器布置在吹膝出风口处；吹膝风道入口处布置电动风门，靠近吹膝风道出风口处包裹电加热膜；通过控制电动风门和加热功率挡位控制吹膝风量和风温；吹膝功能分为自动模式和手动模式；吹膝功能自动模式开启需要同时满足吹膝自动模式开启和空调处于采暖工况两个条件；本发明操作方便、智能且节能，可满足不同水温时驾驶员膝部位置采暖需求，提升空调舒适性，同时节省了能耗，降低整车油耗。
Description
本发明属于汽车技术领域，涉及一种膝部送风***、控制方法及车辆。
随着汽车工业的快速发展，消费者对汽车性能的评价维度逐步完善，空调舒适性的关注度日益提升。在寒冷的冬季汽车刚启动，发动机水温低。打开空调采暖时，空调出风温度与车外温度基本相当，空调吹面及吹足的部分风量会吹到驾驶员膝盖位置，膝关节受到冷风，会出现局部疼痛，引起抱怨。随着发动机水温升高，空调采暖出风温度同步升高，受限于空调吹面及吹足出风口布置位置，空调出风可满足驾驶员头部及脚部采暖需求，膝盖位置风量较低，出现膝盖温度低，空调舒适性差的问题，引起抱怨。基于以上存在的技术问题，尚未有相关的解决方案，因此迫切需要寻求有效方案解决以上问题。
专利文献CN212373110U中，公开了一种车辆送风结构和汽车，其主要保护了一种能够从侧面向用户的腿部送风结构，较好的满足用户腿部的采暖和降温需求的结构装置。此专利无法兼顾驾驶员右膝盖，无加热装置，低温刚启车时，膝部出风温度低，无法满足膝部采暖需求。
专利文献CN211995084U中，公开了一种腿部采暖装置及***，其主要保护了一种通过设置在车内的电热膜对腿部区域加热，提高驾驶员驾车舒适性的采暖装置。此专利采用石墨烯远红外电热膜，受限于加热距离，若无空调出风口出风，无法满足膝部采暖需求。
专利文献CN206465737U中，公开了一种车辆空调***及车辆，其主要保护了一种通过布置膝部风道及出风口，提高人体膝部舒适感的结构装置。此专利无加热装置及控制方法，低温刚启车时，膝部出风温度低，无法满足膝部采暖需求；无风量控制风门，风量无法按需调节；吹膝出风口采用调整叶片角度控制出风方向，操作性较差，此专利在驾驶员左侧膝部布置1个吹膝出风口，无法满足两个膝部位置出风需求。
发明内容
本发明所要解决的技术问题是克服了现有技术存在的上述问题，提供了一种膝部送风***、控制方法及车辆。
本发明目的在于提供一种操作方便、智能且节能的一种膝部送风***、控制方法及车辆，可满足不同水温时驾驶员膝部位置采暖需求，提升空调舒适性，同时节省了能耗，降低整车油耗。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。
为解决上述技术问题，本发明是采用如下技术方案实现的：
本发明提供一种膝部送风***、控制方法及车辆，在左侧吹面风道引风至驾驶员膝部位置，吹膝风道入口处布置电动风门结构，靠近吹膝风道出风口处包裹电加热膜，通过控制电动风门和加热功率挡位控制吹膝风量和风温。为满足不同空调运行状态下驾驶员膝部送风需求，吹膝功能分为自动模式和手动模式，吹膝功能自动模式开启需要同时满足吹膝自动模式开启和空调处于采暖工
况两个条件，吹膝功能手动模式在空调采暖和降温工况下均可通过手动开启。吹膝功能自动模式下，控制器通过分析空调模式调整风门挡位从而控制吹膝风量，通过分析吹膝出风口温度实时调整加热功率挡位从而控制吹膝出风温度。吹膝功能手动模式下，根据驾驶员设定的吹膝风门挡位控制吹膝风量，根据驾驶员设定的吹膝电加热膜功率挡位控制吹膝出风温度。受限于吹膝出风口位置低，通过调整吹膝出风口叶片位置调整出风方向，操作极不方便，本发明吹膝出风口设计成上、下两部分，通过出风角度设计可兼顾不同身高膝部位置出风。在寒冷的冬季汽车刚启动时，发动机水温低，乘员舱从发动机获得的热量少，不能满足驾驶员采暖需求，本发明通过电加热膜加热吹膝出风，使驾驶员可以从吹膝出风额外获得热量，有助于提升水温上升阶段驾驶员空调舒适性感受。
一种膝部送风***，包括吹面风道、吹膝风道、吹膝出风口，温度传感器、电动风门、电加热膜；
所述吹面风道用于从空调箱体取风，流向吹面及吹膝出风；
所述吹膝风道用于从吹面风道取风，流向吹膝出风口出风；
所述温度传感器布置在吹膝出风口处；
吹膝风道入口处布置电动风门，靠近吹膝风道出风口处包裹电加热膜。
进一步地，所述控制器通过控制电动风门和加热功率挡位控制吹膝风量和风温；
所述控制器通过分析空调模式调整风门挡位从而控制吹膝风量，通过分析吹膝出风口温度实时调整加热功率挡位从而控制吹膝出风温度。
进一步地，驾驶员靠近车门侧吹面风道风量占空调吹面总风量的比例由18％提升至22％，其中驾驶员靠近车门侧吹面出风口占比18％，两个吹膝出风口总占比4％；
布置左、右两个吹膝风道及吹膝出风口，满足驾驶员左、右两个膝盖采暖需求；
吹膝出风口与驾驶员膝部之间距离150mm左右，吹膝出风口风速≥5m/s；
吹膝出风口设计成上、下两部分，通过出风角度设计满足不同身高驾驶员的膝部采暖需求。
进一步地，所述温度传感器布置1个或者2个；
若布置1个，布置在驾驶员左侧吹膝出风口处；
若布置2个，分别布置在左、右吹膝出风口处，取2个温度平均值。
进一步地，所述电动风门设置两个，分别安装在左、右吹膝风道入口处；电动风门设置4个挡位，即0挡、1挡、2挡、3挡，对应的电动风门开度分别为0、30％、50％和100％。
吹膝功能自动模式下，控制器通过分析空调模式状态，调整对应的电动风门挡位控制吹膝风量，保证不同空调模式下吹膝风量及风速一致性；
吹膝功能手动模式下，根据驾驶员按需设定的吹膝电动风门挡位控制吹膝风量。
进一步地，所述电加热膜分别包裹在靠近左、右吹膝出风口处的风道外表面，用于加热吹膝出风，控制出风温度；
电加热膜功率设置4个挡位，即0挡、1挡、2挡、3挡，对应的功率P分别为0、40W、80W和100W；
吹膝功能自动模式下，控制器根据吹膝出风口温度T1实时调整电加热膜功率挡位控制吹膝出风温度；
吹膝功能手动模式下，根据驾驶员按需设定的吹膝电加热膜功率挡位控制吹膝出风温度。
一种膝部送风***控制方法，包括以下步骤：
步骤1、控制器判断空调功能是否开启；若是，则进入步骤2；若否则进入步骤13；
步骤2、控制器读取吹膝功能控制模式；若是自动模式，则进入步骤3；若是手动模式，则进入步骤14；
步骤3、控制器读取空调运行状态；若处于采暖工况，则进入步骤4；若处于降温工况，则进入步骤5；
步骤4、控制器读取空调模式；若空调处于吹面出风模式，则进入步骤6；若空调处于吹面和吹脚同时出风的模式，则进入步骤7；若空调处于吹脚出风、吹脚和除霜同时出风、除霜出风模式，则进入步骤8；
步骤5、吹膝电动风门设置为0挡，进入步骤13；
步骤6、吹膝电动风门设置为1挡，进入步骤9；
步骤7、吹膝电动风门设置为2挡，进入步骤9；
步骤8、吹膝电动风门设置为3挡，进入步骤9；
步骤9、控制器读取吹膝出风口温度T1；若T1≤40℃，则进入步骤10；若40＜T1≤50℃，则进入步骤11；若50＜T1≤60℃，则进入步骤12；若T1＞60℃，则进入步骤13；
步骤10、电加热膜功率设置为3挡；
步骤11、电加热膜功率设置为2挡；
步骤12、电加热膜功率设置为1挡；
步骤13、电加热膜功率设置为0挡；
步骤14、手动设定电动风门挡位和加热功率挡位。
进一步地，吹膝功能自动模式开启需要同时满足吹膝自动模式开启和空调处于采暖工况两个条件，吹膝功能手动模式在空调采暖和降温工况下均可通过手动开启。
一种车辆，该车辆装配有如权利要求1至6中任一项所述的膝部送风***。
一种车辆，该车辆采用如权利要求7或8任一项所述的膝部送风***控制方法。
与现有技术相比本发明的有益效果是：
本发明通过电加热膜加热吹膝出风，使驾驶员可以从吹膝出风额外获得热量，有助于提升水温上升阶段驾驶员空调舒适性感受。吹膝功能自动模式下，控制器根据吹膝出风口温度T1实时调整电加热膜功率挡位控制吹膝出风温度，在满足采暖需求的同时降低能耗；吹膝功能手动模式下，根据驾驶员按需设定的吹膝电加热膜功率挡位控制吹膝出风温度。
本发明操作方便、智能且节能的一种膝部送风***、控制方法及车辆，可满足不同水温时驾驶员膝部位置采暖需求，提升空调舒适性，同时节省了能耗，降低整车油耗。
下面结合附图对本发明作进一步的说明：
图1为本发明所述一种膝部送风***控制方法流程图；
图2为本发明所述一种膝部送风***结构示意图一；
图3a为吹膝出风口位置示意图一；
图3b为吹膝出风口位置示意图二；
图4为本发明所述一种膝部送风***结构示意图二；
图5为本发明所述一种膝部送风***结构示意图三；
为使本发明实施的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行更加详细的描述。在附图中，自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元
件。所描述的实施例是本发明一部分实施例，而不是全部的实施例。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。下面结合附图对本发明的实施例进行详细说明。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明保护范围的限制。
下面结合附图对本发明作详细的描述：
参阅图2、图4、图5，本发明提供一种膝部送风***、控制方法及车辆。包括控制器、仪表板、吹面风道、吹膝风道、吹膝出风口，温度传感器、电动风门、电加热膜。
吹膝功能分为自动模式和手动模式，吹膝功能自动模式开启需要同时满足吹膝自动模式开启和空调处于采暖工况两个条件，吹膝功能手动模式在空调采暖和降温工况下均可通过手动开启。
吹面风道用于从空调箱体取风，流向吹面及吹膝出风，为了不影响驾驶员靠近车门侧吹面出风口出风性能，设计时需要将驾驶员靠近车门侧吹面风道风量占空调吹面总风量的比例由18％提升至22％，其中驾驶员靠近车门侧吹面出风口占比18％，两个吹膝出风口总占比4％。一般吹膝出风口与驾驶员膝部之间距离150mm左右，若风速低，出风无法到达膝部位置，膝部采暖性能无法保证，故需要保证设计风量下，吹膝出风口风速≥5m/s。
参阅图3a、图3b，吹膝风道用于从吹面风道取风，流向吹膝出风口出风。由于吹膝出风口位置低，通过调整吹膝出风口叶片位置调整出风方向，操作极不方便，本发明将吹膝出风口设计成上、下两部分，通过出风角度设计可满足不同身高驾驶员的膝部采暖需求，如图3a、图3b所示。
温度传感器布置在吹膝出风口处，可布置1个或者2个。若布置1个，由于靠近车门侧温度偏凉，需要布置在驾驶员左侧吹膝出风口处。若布置2个，需要分别布置在左、右吹膝出风口处，取2个温度平均值。
汽车空调一般分为5种控制模式，即吹面出风、吹面和吹脚同时出风、吹脚出风、吹脚和除霜同时出风、除霜出风。这5种模式下吹面风量占空调总风量的比例分别为100％、60％、30％、25％和15％。两个吹膝电动风门分别安装在左、右吹膝风道入口处，如图4和图5所示。风门设置4个挡位，即0挡、1挡、2挡、3挡，对应的风门开度分别为0、30％、50％和100％。吹膝功能自动模式下，控制器通过分析空调模式状态，调整对应的风门挡位控制吹膝风量，保证不同空调模式下吹膝风量及风速一致性。吹膝功能手动模式下，根据驾驶员按需设定的吹膝风门挡位控制吹膝风量。
电加热膜分别包裹在靠近左、右吹膝出风口处的风道外表面，如图5所示，用于加热吹膝出风，控制出风温度。若布置在远离吹膝出风口处，则会造成热损失和能耗浪费。由于不同水温，吹膝出风加热需求不同，电加热膜功率设置4个挡位，即0挡、1挡、2挡、3挡，对应的功率P分别为0、40W、80W和100W。在寒冷的冬季汽车刚启动时，发动机水温低，乘员舱从发动机获得的热量少，不能满足驾驶员采暖需求，本发明通过电加热膜加热吹膝出风，使驾驶员可以从吹膝出风额外获得热量，有助于提升水温上升阶段驾驶员空调舒适性感受。吹膝功能自动模式下，控制器根据吹膝出风口温度T1实时调整电加热膜功率挡位
控制吹膝出风温度，在满足采暖需求的同时降低能耗；吹膝功能手动模式下，根据驾驶员按需设定的吹膝电加热膜功率挡位控制吹膝出风温度。
参阅图1，具体实施方式：
1、控制器判断空调功能是否开启。若是，则进入步骤2；若否则进入步骤13
2、控制器读取吹膝功能控制模式。若是自动模式，则进入步骤3；若是手动模式，则进入步骤14
3、控制器读取空调运行状态。若处于采暖工况，则进入步骤4；若处于降温工况，则进入步骤5
4、控制器读取空调模式。若空调处于吹面模式，则进入步骤6；若空调处于吹面/吹脚模式，则进入步骤7；若是其他模式，则进入步骤8
5、吹膝电动风门设置为0挡，进入步骤13
6、吹膝电动风门设置为1挡，进入步骤9
7、吹膝电动风门设置为2挡，进入步骤9
8、吹膝电动风门设置为3挡，进入步骤9
9、控制器读取吹膝出风口温度T1.若T1≤40℃，则进入步骤10；若40＜T1≤50℃，则进入步骤11；若50＜T1≤60℃，则进入步骤12；若T1＞60℃，则进入步骤13
10、电加热膜功率设置为3挡
11、电加热膜功率设置为2挡
12、电加热膜功率设置为1挡
13、电加热膜功率设置为0挡
14、手动设定电动风门挡位和加热功率挡位
本发明吹膝功能分为自动模式和手动模式；
吹膝功能自动模式开启需要同时满足吹膝自动模式开启和空调处于采暖工况两个条件；
吹膝功能自动模式下，通过分析空调模式、吹膝出风口温度T1来控制吹膝电动风门挡位及电加热膜功率挡位；
吹膝功能手动模式在空调采暖和降温工况下均可通过手动开启，驾驶员可按需设定吹膝电动风门挡位及电加热膜功率挡位；
为保证驾驶员靠近车门侧吹面出风口出风性能，驾驶员靠近车门侧吹面风道风量占空调吹面总风量的比例由18％提升至22％；
吹膝出风总风量占空调吹面总风量比例为4％，吹膝出风风速≥5m/s，保证膝部采暖性能；
布置左、右两个吹膝风道及出风口，满足驾驶员左、右两个膝盖采暖需求；
吹膝风道入口处安装电动风门，电动风门开度设置4个挡位，不局限于设置4个挡位。吹膝功能自动模式下，与空调模式关联，保证不同模式下吹膝风量及风速一致性；
吹膝风道外包裹电加热膜，用于加热吹膝送风温度，保证膝部采暖性能；
电加热膜布置在靠近吹膝出风口处，若布置在远离吹膝出风口处，则会造成热损失和能耗浪费；
电加热膜功率设置4个挡位，不局限于设置4个挡位。吹膝功能自动模式下，与吹膝出风口温度T1关联，功率可实时调整；
吹膝温度传感器布置1个或2个。若布置1个，需要布置在驾驶员左侧吹膝出风口处；若布置2个，需要分别布置在左、右吹膝出风口处，取2个温度平均值。
吹膝风道及出风口分为上、下两部分，通过出风角度设计，兼顾不同身高膝部采暖需求，不需要布置叶片进行手动调节出风方向。
一种车辆，采用上述膝部送风***。
一种车辆，采用上述膝部送风***控制方法。
调整成吹膝风道与吹足风道相连，从空调箱吹足出风口分风，相应调整风量比例，基本可以作为替代方案。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，都应涵盖在本发明的保护范围之内。同时本说明书中未作详细描述的内容均属于本领域技术人员公知的现有技术。
Claims (10)
- 一种膝部送风***，其特征在于，包括吹面风道、吹膝风道、吹膝出风口，温度传感器、电动风门、电加热膜；所述吹面风道用于从空调箱体取风，流向吹面及吹膝出风；所述吹膝风道用于从吹面风道取风，流向吹膝出风口出风；所述温度传感器布置在吹膝出风口处；吹膝风道入口处布置电动风门，靠近吹膝风道出风口处包裹电加热膜。
- 根据权利要求1所述的一种膝部送风***，其特征在于：还包括控制器；所述控制器通过控制电动风门和加热功率挡位控制吹膝风量和风温；所述控制器通过分析空调模式调整风门挡位从而控制吹膝风量，通过分析吹膝出风口温度实时调整加热功率挡位从而控制吹膝出风温度。
- 根据权利要求1所述的一种膝部送风***，其特征在于：驾驶员靠近车门侧吹面风道风量占空调吹面总风量的比例由18％提升至22％，其中驾驶员靠近车门侧吹面出风口占比18％，两个吹膝出风口总占比4％；布置左、右两个吹膝风道及吹膝出风口，满足驾驶员左、右两个膝盖采暖需求；吹膝出风口与驾驶员膝部之间距离150mm左右，吹膝出风口风速≥5m/s；吹膝出风口设计成上、下两部分，通过出风角度设计满足不同身高驾驶员的膝部采暖需求。
- 根据权利要求1所述的一种膝部送风***，其特征在于：所述温度传感器布置1个或者2个；若布置1个，布置在驾驶员左侧吹膝出风口处；若布置2个，分别布置在左、右吹膝出风口处，取2个温度平均值。
- 根据权利要求2所述的一种膝部送风***，其特征在于：所述电动风门设置两个，分别安装在左、右吹膝风道入口处；电动风门设置4个挡位，即0挡、1挡、2挡、3挡，对应的电动风门开度分别为0、30％、50％和100％。吹膝功能自动模式下，控制器通过分析空调模式状态，调整对应的电动风门挡位控制吹膝风量，保证不同空调模式下吹膝风量及风速一致性；吹膝功能手动模式下，根据驾驶员按需设定的吹膝电动风门挡位控制吹膝风量。
- 根据权利要求2所述的一种膝部送风***，其特征在于：所述电加热膜分别包裹在靠近左、右吹膝出风口处的风道外表面，用于加热吹膝出风，控制出风温度；电加热膜功率设置4个挡位，即0挡、1挡、2挡、3挡，对应的功率P分别为0、40W、80W和100W；吹膝功能自动模式下，控制器根据吹膝出风口温度T1实时调整电加热膜功率挡位控制吹膝出风温度；吹膝功能手动模式下，根据驾驶员按需设定的吹膝电加热膜功率挡位控制吹膝出风温度。
- 一种膝部送风***控制方法，其特征在于，包括以下步骤：步骤1、控制器判断空调功能是否开启；若是，则进入步骤2；若否则进入步骤13；步骤2、控制器读取吹膝功能控制模式；若是自动模式，则进入步骤3；若是手动模式，则进入步骤14；步骤3、控制器读取空调运行状态；若处于采暖工况，则进入步骤4；若处于降温工况，则进入步骤5；步骤4、控制器读取空调模式；若空调处于吹面出风模式，则进入步骤6；若空调处于吹面和吹脚同时出风的模式，则进入步骤7；若空调处于吹脚出风、吹脚和除霜同时出风、除霜出风模式，则进入步骤8；步骤5、吹膝电动风门设置为0挡，进入步骤13；步骤6、吹膝电动风门设置为1挡，进入步骤9；步骤7、吹膝电动风门设置为2挡，进入步骤9；步骤8、吹膝电动风门设置为3挡，进入步骤9；步骤9、控制器读取吹膝出风口温度T1；若T1≤40℃，则进入步骤10；若40＜T1≤50℃，则进入步骤11；若50＜T1≤60℃，则进入步骤12；若T1＞60℃，则进入步骤13；步骤10、电加热膜功率设置为3挡；步骤11、电加热膜功率设置为2挡；步骤12、电加热膜功率设置为1挡；步骤13、电加热膜功率设置为0挡；步骤14、手动设定电动风门挡位和加热功率挡位。
- 根据权利要求7所述的一种膝部送风***控制方法，其特征在于，吹膝功能自动模式开启需要同时满足吹膝自动模式开启和空调处于采暖工况两个条件，吹膝功能手动模式在空调采暖和降温工况下均可通过手动开启。
- 一种车辆，其特征在于：该车辆装配有如权利要求1至6中任一项所述的膝部送风***。
- 一种车辆，其特征在于：该车辆采用如权利要求7或8任一项所 述的膝部送风***控制方法。
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| CN2447675Y (zh) * | 2000-09-29 | 2001-09-12 | 广州第三电器厂 | 一种电热空气幕 |
| JP2007131232A (ja) * | 2005-11-11 | 2007-05-31 | Valeo Thermal Systems Japan Corp | 車両用空調制御装置 |
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| CN115303009A (zh) * | 2022-07-20 | 2022-11-08 | 中国第一汽车股份有限公司 | 一种膝部送风***、控制方法及车辆 |
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| CN2447675Y (zh) * | 2000-09-29 | 2001-09-12 | 广州第三电器厂 | 一种电热空气幕 |
| JP2007131232A (ja) * | 2005-11-11 | 2007-05-31 | Valeo Thermal Systems Japan Corp | 車両用空調制御装置 |
| KR20090022457A (ko) * | 2007-08-30 | 2009-03-04 | 한라공조주식회사 | 자동차용 급속 난방장치 |
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| CN115303009A (zh) * | 2022-07-20 | 2022-11-08 | 中国第一汽车股份有限公司 | 一种膝部送风***、控制方法及车辆 |
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