Sensor Technology Helps Electric Vehicle HVAC Systems Meet Air Quality Standards

2023-05-05 Amphenol Sensors Blogs

The days of smog-filled skylines, visible miles away from major metropolitan areas, are numbered.

The upcoming influx of electric vehicles (EV) on roads across the globe will be a boon for the natural environment and its air quality. It’s simple math: Exhaust emissions from automobiles decrease as the number of EVs increases.


For activists, scientists, and governments taking action on climate change and dependency on fossil fuels, the electrification of automobiles – and vehicles of all types – is a major win. Now, the focus on EVs and air quality is shifting toward a different environment – the one inside the vehicle.


Many countries are now enacting stringent in-cabin air quality regulations for automobiles of all makes and models – electric cars included. Most notably, China released voluntary standards for certain in-car air pollutants, which all vehicles sold within the country will be expected to meet. More concerning is the lack of in-cabin air quality regulations in the United States; in fact, domestic electric vehicle policy creation is still within its infancy.


For automakers, meeting government regulations for electric vehicles upheld by many countries means building all vehicles to those standards. To do this, electric vehicle HVAC systems will need to be more robust and feature air quality sensor technology to detect and control pollutants that compromise in-car air quality and respiratory health.


The In-Cabin Airborne Contaminants Affecting Drivers & Passengers

Drivers and passengers are spending more time on the road than ever before. The air quality inside a vehicle is directly linked to health issues.


Studies show too much time spent inside a vehicle while driving may lead to serious medical conditions, from exhaust and emissions.


While EVs are zero-emission vehicles, they won’t be an immediate silver bullet to improving air quality. ICE vehicles will still very much be on the roads as they’re slowly replaced by greener counterparts.


In-cabin air quality – regardless of vehicle type – is impacted by two factors:

  • Pollutants

  • Recirculated air


1. Pollutants

The most obvious contaminant to air quality, pollutants have the biggest impact on the immediate and long-term health of drivers and passengers. Pollutants, however, aren’t limited to just those outside a vehicle that make their way in.


The most common pollutants compromising in-cabin air quality include:

  • Exhaust

  • Ultrafine particles, such as the carbonaceous soot from diesel exhaust or brake dust

  • VOCs (volatile organic compounds, such as hydrocarbons)


Exhaust

While electric vehicles are slated to replace ICE vehicles, that doesn’t mean exhaust is a thing of the past. It’ll be decades before ICE vehicles are completely gone from roads.


As long as traditional cars and trucks are on the road, EV drivers will still be exposed to dangerous car exhaust pollutants from nearby vehicles, such as:

  • Nitrogen dioxide

  • Ozone

  • Carbon monoxide & carbon dioxide

  • Sulfur dioxide

  • Hydrocarbons

Like with VOCs, prolonged exposure to exhaust fumes has serious negative health impacts.


Fine Particles

Standard vehicle HVAC filtration systems only go so far removing large particulates (e.g. mold spores or dirt) from the air brought inside a car. They don’t cleanse the air of fine particles – typically 25 times less than the diameter of a human hair – such as:

  • Dust

  • Salts

  • Smoke


If inhaled, nanoparticles stay within a person’s respiratory system, exacerbating existing breathing conditions or reducing lung function.


VOCs

With millions of electric vehicles set to hit the road in the coming decade, more drivers and passengers will be exposed to that “new-car smell.” For many drivers, that smell is a defining characteristic of a vehicle just off the lot.


But that scent isn’t much different than paint fumes. Like the smell from a fresh coat of paint, the new-car scent is from the off-gassing of VOCs (volatile organic compounds), or more specifically:

  • Acetone

  • Benzene

  • Formaldehyde


Exposure to the VOCs in a new car takes its toll on drivers and passengers, with common side effects including headaches, fatigue, and dizziness. New regulations in China force automakers to develop electric cars with low VOC interiors to reduce the risk of driver exposure to these hazardous fumes.


2. Recirculated Air

Recirculated air is essentially recycled air, including respired air from breathing and any pollutants or other contaminants inside a vehicle introduced by the occupants or the environment the vehicle is driving in. Humans breathe out carbon dioxide, and when they are in a well-sealed vehicle, the carbon dioxide levels will continue to rise, and vehicles with greater numbers of occupants in the same air space will generate harmful levels of carbon dioxide in relatively short time domains.


In electric vehicles, recirculating air presents a bigger challenge, as many EVs use an HVAC system’s recirculation function to maintain efficiency and conserve energy. It takes less energy to heat or cool recirculated air than it does to heat or cool “fresh” outside air using an HVAC system, but those power savings come at a cost to health. Without a proper filtration system or the presence of new, clean air, vehicle occupants remain exposed to in-cabin air pollutants as well as CO2 which can contribute to short-term issues with attentiveness and longer-term issues with respiratory health.


Breathing Easy With EV Sensor Technology

The trouble with in-cabin air contaminants is that most drivers and passengers don’t realize their level of exposure to them. Many of the most common airborne impurities are invisible to the naked eye or odorless. 


Sensors used in electric cars can play a critical role in helping electric vehicle HVAC systems meet air quality standards. HEPA filters to cleanse in-cabin air are only half the equation of reducing electric vehicle air pollution. Sensors that detect all pollutants and airborne contaminants are the other. These sophisticated sensors can detect ultrafine particulates and gases such as carbon dioxide, NOx, CO, and VOCs inside and outside the vehicle.


Sensor technology does what the five senses can’t: detect pollutants that threaten health, and automatically activate air-cleaning systems. With a filtration system and sensor technology working in tandem, you can reduce exposure to toxic fumes and particles while meeting government regulations for electric vehicles and their in-cabin air quality. 


Beyond Air Quality: EV HVAC & Battery Life
While certainly in-cabin air quality and passenger safety EV laws deserve the utmost attention, an electric cars HVAC system provides other opportunities to meet the EV laws of today and tomorrow.


More specifically, EV battery thermal management and optimization.


The impact of an EV’s HVAC system on the battery that powers it remains a major concern for vehicle makers. In short, the HVAC system can be a major drain on the vehicle’s power supply, reducing their drivable distance and putting more frequent strain on the grid for recharging. However, advancements in heat pump technology coupled with sensors are giving in-vehicle climate control a new level of energy efficiency.


Improving Air Quality in Multiple Environments

Representing a major step forward in protecting the natural environment, electric vehicles are a game-changer for drastically reducing emissions. Thanks to anticipated EV policy safety standards for in-cabin air quality leveraging the latest in pollutant sensor technology, EVs are poised to take public health protection to the next level.

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本文由玄子转载自Amphenol Sensors Blogs,原文标题为:MEETING GOVERNMENT REGULATIONS FOR ELECTRIC VEHICLES: HVAC,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。

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PSI-D-PRIME-MINI,DLVR-F50D,0.3 PSI-D-4V-MIL,5 INCH-D-MV,DLVR-L05D,DLVR-L05G,15 PSI-G-CGRADE-MINI,0.3 PSI-D-4V-PRIME,15 PSI-D-4V-ASCX,10 INCH-GF-HGRADE-MINI,15 PSI-D-PRIME-MV,4 INCH-G-CGRADE-MINI,150 PSI-G-4V,10 INCH-DX-MV-MINI,60 INCH-DX-P4V-MINI,10 INCH-D1DIP-MV-SDXL,BDS-L10D100A,BLC,30 INCH-D-MV,SPA 401□-□□□□□□□□□□□□□□□□,100 PSI-G-CGRADE-MIN,30 INCH-GDIP-MV-MINI,DLV-005G-E1BD-CNI3F,2 INCH-D2DIP-MV-MINI,20 INCH-D1DIP-MV-MINI,DLV-060D,DLV-060G,30 PSI-A-DO-MIL,1 PSI-D-4V-MIL,DLVR-L02G,1 PSI-D-4V-MINI,DLV-060A,BLV,2 INCH-D1DIP-MV-MINI,15 PSI-D-PRIME-MINI,BDS-L10D030A-N9,10 INCH-DX-P4V-MINI,30 PSI-A-4V-ASCX,CPA602□-□□□□□□□□□,5 PSI-D-CGRADE-MINI,30 PSI-A-HGRADE-MINI,1 PSI-D-DO-MIL,DLVR,2.5 INCH-D-4V,MLV-L10D-A6DXF-N,DLVR-L01D,30 INCH-D1DIP-MV-SDXL,DLVR-L01G,30 PSI-AF-HGRADE-MINI,BLCR-L05D,15 PSI-A-DO,CPA-502,10 INCH-D-DO,1 PSI-G-4V,MCI,BP01-D-MV,DLVR-L02D,5 PSI-G-4V-MIL,DHLR-L10D,MCS,DLHR- L02D + X,BLVR SERIES,DLV-030G,MLV-015D,10 INCH-G-CGRADE-MINI,MLV-015A,DLV-030A,20 INCH-G-P4V-MINI,ACPC,MLV-100D,DLV-030D,5 PSI-D-4V-PRIME,0.3 PSI-D-PRIME-MINI,20 INCH-D-4V,10 INCH-D2DIP-MV-SDXL,120 CMH2O-D-4V,15 PSI-D-HGRADE-MV,DLH-L05G,DLH-L05D,100 PSI-A-4V,5 PSI-GF-HGRADE-MINI,100 PSI-D-HGRADE-MV,BARO-A-4V-MINI,0.3 PSI-D-HGRADE-MINI,1 PSI-GF-HGRADE-MINI,4 INCH-D-HGRADE-MINI,5 PSI-D-4V-MINI,1 INCH-G-P4V-MINI,4 INCH-D-HGRADE-MV,15 PSI-D-HGRADE-MINI,5 PSI-D-HGRADE-MV,10 INCH-GDIP-MV-MINI,BLVR-L10D-B1NS-N,15 PSI-D-4V,4 INCH-GF-HGRADE-MINI,30 PSI-G-PRIME-MINI,1 INCH-G-4V-MINI,PSI-X-4V-ASCX,5 PSI-DX-4V-MINI,100 PSI-G-PRIME-MINI,DLVR-L10D,30 PSI-D-CGRADE-MV,DLVR-L10G,1 PSI-D-HGRADE-MINI,BLC-015A,5 INCH-GDIP-MV-SDXL,SPM 401,0.3 PSI-GF-HGRADE-MINI,SPM 402,30 INCH-D2DIP-MV-MINI,30 PSI-AF-PRIME-MINI,100 PSI-A-DO-MIL,MLV-L10D-A6AAX-N,5 CMH2O-D1-P4V-MINI,5 PSI-D-CGRADE-MV,30 PSI-D-4V,MLV-L10D-A6XAF-N,CPM602,30 INCH-D2-MV-MINI,ASCX SERIES,BARO-A-4V-MINI-PRIME,0.25 INCH-D-4V,DLHR- L10D + X,15 PSI-A-HGRADE-MV,100 PSI-GF-HGRADE-MINI,10 INCH-DX-4V-MINI,BDS-L10D030A,BLCR-L10D,1 PSI-GF-PRIME-MINI,100 PSI-D-CGRADE-MV,BDS SERIES,DLHR-L60D,DLHR-L60G,1 MBAR-D-4V,SPM401□-□□□□□□□□□□□□□□□□,5 PSI-G-HGRADE-MINI,5 PSI-GF-CGRADE-MINI,MAMP,0.3 PSI-G-4V-MINI,ADUX,0.3 PSI-G-CGRADE-MINI,2 INCH-GDIP-MV-SDXL,5 INCH-D-4V,4 INCH-D-CGRADE-MV,5 PSI-D-HGRADE-MINI,30 INCH-D-4V,BLV-L01DB1NS-N,10 INCH-G-PRIME-MINI,15 PSI-D-CGRADE-MV,BLCR,30 PSI-D-HGRADE-MIN,100 PSI-AF-PRIME-MINI,100 PSI-A-HGRADE-MV,20 INCH-GDIP-MV-MINI,CPM-502,MLV-005D,1 PSI-D-DO,BLCR-L20D,BARO-A-4V-PRIME-REF,5 PSI-D-DO-MIL,ABX00004,10 INCH-D1DIP-MV-MINI,10 INCH-D-MV,SPA 401,ABX00002,SPA 402,0.5 INCH-D-MV,30 INCH-D2DIP-MV-SDXL,100 PSI-A-4V-PRIME,1 PSI-D-HGRADE-MV,15 PSI-A-PRIME-MINI,DLH-L05D-E1NS-C-NAV6,5 INCH-DX-P4V-MINI,2 INCH-D2DIP-MV-SDXL,FPS SERIES,0.3 PSI-D-CGRADE-MINI,5 INCH-D2DIP-MV-SDXL,1 PSI-G-PRIME-MINI,30 PSI-A-PRIME-MV,30 PSI-A-4V-PRIME,SPM402□-□□□□□□□□□□□□□□□□,30 PSI-G-4V-MINI,BLC-L05D,MCI SERIES,100 PSI-G-HGRADE-MINI,BLVR-L20D,100 PSI-D-4V,30 PSI-A-4V-MINI,DLH-L10D,10 INCH-D-CGRADE-MINI,DLH-L10G,15 PSI-GF-CGRADE-MINI,1 INCH-D-MV,1 PSI-D-4V-ASCX,100

2019/12/9  - AMPHENOL SENSORS  - 选型指南 代理服务 技术支持 批量订货

Amphenol Sensors(安费诺)/Telaire 空气质量传感器选型指南

目录- OEM CO2模块    OEM集成智能粉尘传感器    OEM恶劣环境传感器    空气质量工程开发工具包    其他传感技术   

型号- T6613-X,SM-UART-01L,T6715,T6615,T6703,T6615-X,T3000,T9602,T61715,T6715-X,T61703,SM-PWM-01S,T6700,T61713,T6713-X,T6600,T6713,T61700,T6613,SM-PWM-01C-JS,AM-PWM-01C-JS,T6000,T6715X,SM-PWM-01C

01/2017  - AMPHENOL SENSORS  - 选型指南 代理服务 技术支持 批量订货

电流传感器–CH1S01xB规格书

描述- 该资料主要介绍了CH1S01xB电流传感器在电动汽车(EV)中的应用及其优势。该传感器利用开环霍尔效应技术,提供双通道输出信号,具有高精度、低热漂移和隔离特性,适用于电池管理系统、混合动力车、电动汽车和商用车辆等领域。

型号- CH1S01XB

2024/10/8  - LITTELFUSE  - 数据手册 代理服务 技术支持 批量订货

Suncall Corporation Taps Crocus Technologies TMR Sensor Technology to Develop Advanced Sensors for EV Industry

Suncall’s collaboration with Crocus is a significant milestone in the development of the magnetic current sensor. By implementing TMR for current detection applications in devices with high currents, Suncall is breaking new ground in the industry, paving the way for further innovation and growth.

2023-03-27 -  原厂动态

SENSOR+TEST德国展会圆满成功 | 昆泰芯携中国“芯”亮相世界舞台

2024年6月11日-13日,备受瞩目的SENSOR+TEST于德国纽伦堡圆满举行。“此次参展,各国客户对我们的产品表现出了极大的兴趣,并对其性能给予高度评价。”昆泰芯CEO武建峰博士表示,“昆泰芯携中国“芯”亮相世界舞台,坚定了我们在欧洲市场扩展业务的信心和决心。”

2024-06-20 -  原厂动态 代理服务 技术支持 批量订货

EV Heat Pumps & Enhanced Battery Life

One such component contributing to improved battery efficiency is EV heat pumps. Considered a new tool for increased battery life, EV heat pumps are providing the alternate route for improved efficiency and range.

2024-10-31 -  设计经验 代理服务 技术支持 批量订货

CTS Coolant Temperature Sensor

描述- 该资料介绍了Coolant Temperature Sensor(冷却液温度传感器,简称CTS)的功能和应用。CTS用于监测电动汽车或插电式混合动力汽车电池模块周围的冷却液的温度,并在电池模块过热时向电池管理系统(BMS)发送信号,以防止电池组损坏并最大化性能。

型号- 3140X-2110,WTF083B001,PBT-GF15

06/2017  - AMPHENOL SENSORS  - 数据手册 代理服务 技术支持 批量订货
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压力传感器定制

可定制板装式压力传感器支持产品量程从5inch水柱到100 psi气压;数字输出压力传感器压力范围0.5~60inH2O,温度补偿范围-20~85ºС;模拟和数字低压传感器可以直接与微控制器通信,具备多种小型SIP和DIP封装可选择。

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温度传感器定制

可定制温度范围-230℃~1150℃、精度可达±0.1°C;支持NTC传感器、PTC传感器、数字式温度传感器、热电堆温度传感器的额定量程和输出/外形尺寸/工作温度范围等参数定制。

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