HVAC Heat Exchangers
Valeo is the leading thermal specialist among automotive Heating, Ventilation and Air-Conditioning (HVAC) system suppliers in Europe. There are 2 types of heat exhangers located in the HVAC unit: a heater core and an evaporator.
Thermal Management
All our products
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Thermal Management Air conditioning -
Thermal Management Electric HeatersLow Voltage Electrical Air Heaters
In the context of 48V network vehicles (MILD hybrids, etc.), Valeo offers 48V solutions, an evolution of our 12V technology. These products, using the same PTC stone technology, allow 48V to offer higher voltage and power. In addition, the 48V makes it possible to compensate for the shortage of energy for heating the passenger compartment while the engine heats up.
First fully brazed block on the market (+800 W while maintaining the same number of stones).
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Thermal Management Air conditioningElectrical Compressors
Valeo electrical compressors enable high performance thermal management of A/C and H/P systems, in electric and hybrid vehicles.
Designed and validated for efficient cabin and battery, cooling and heating, they can withstand severe operation conditions and support battery fast charging thanks to a wide operating high voltage range.
Valeo offers a wide range of electrical compressors, from medium to large displacement and at different voltage ranges for the different applications in electrified vehicles.
Valeo range includes: 34cc 400 V, 45cc 400 V and 45cc 800 V.
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Thermal Management Electric HeatersHigh Voltage Coolant Heaters (HVCH)
High Voltage Coolant heaters (HVCH) were initially developed to heat glycol in the HVAC modules of electric vehicles, ensuring optimal comfort in the cabin. Their role has expanded with battery preheating, an essential functionality in cold climates to preserve the performance and range of electric vehicles.
Valeo wants to democratize the implementation of HVCH by offering a flat design, allowing their integration into compact air conditioning systems and thus meeting all requirements.
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Thermal Management Coolant SystemBrushless Cooling Fan System
As part of the engine cooling system, fan systems include a fan system motor, a blade and a shroud.
Electrification and new ICE require greater fan system power and therefore higher energy consumption that generate higher noise levels.
Blade and shroud design have been improved to optimize acoustics and efficiency whilst light and compact brushless motors provide maximum airflow at minimized noise levels for powertrain/battery cooling, with best-in-class efficiency.
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Thermal Management Air conditioningR-744 Smart Heat Pump Dual
A Heat Pump is an evolution of the Air Conditioning (A/C) to cool the cabin but also to warm it, using the thermodynamic cycle of a refrigerant gas.
Over time, EV heat pump systems have increased in complexity, taking more and more space while their cost has become quite substantial. Designing compact modules has become the main trend while focusing on sustainability.
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Body & Chassis, Thermal Management Battery Solutions, Car body parts
Organosheet Battery Casing
PHEV Battery in thermoplastic composite for ligtweighting and reinforced mechanical and thermal battery protection.
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Thermal Management Electric Heaters
High Voltage Electrical Air Heaters
High-voltage Air heaters represent the natural evolution of low-voltage 12V PTCs, specifically designed for BEVs. Thanks to PTC stone technology, Valeo high voltage heaters operate at higher powers and voltages, providing superior performance.
With the rise of vehicles equipped with ultra-fast charging technologies operating at 800 V, it is becoming essential to upgrade certain components, particularly those that consume the most energy, to align with this standard. Valeo therefore also offers high voltage air heaters at 800 V.
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Thermal Management Battery Solutions
Large Battery Liquid Cooler for EV
High voltage batteries are expensive and very sensitive to temperature variations even when the vehicle is stopped and the battery is being charged. Valeo designs and manufactures compact and cost-competitive solutions (refrigerant, liquid and air cooling) to cater for all types of powertrains: hybrids in Japan and the U.S.; plug-in hybrids (PHEV) and full electric (EV) elsewhere. For PHEVs, Valeo full exchanger solution on refrigerant is serial since 2015. For EVs, Valeo offers ultra-performing liquid battery coolers for prismatic and cylindrical Li-ion battery packs (China, the U.S. and Europe).
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Thermal Management Battery Solutions
Cylindric Cells Battery Cooler
High voltage batteries are expensive and very sensitive to temperature variations, even when the vehicle is stopped and the battery is being charged. Valeo designs and manufactures compact and cost-competitive solutions (refrigerant, liquid and air cooling) to cater for all types of powertrains: hybrids in Japan and the US; plug-in hybrids (PHEV) and full electric (EV) elsewhere. For PHEVs, Valeo full exchanger solution on refrigerant is serial since 2015. For EVs, Valeo offers ultra-performing liquid battery coolers for prismatic and cylindrical Li-ion battery packs (China, the US and Europe).
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Thermal Management Coolant SystemSmart Coolant Modules
EVs coolant hub architectures with several coolant loops (cabin heater/battery/power electronics) have a high degree of complexity, in particular for vehicles equipped with a Heat Pump system. In order to increase the vehicle’s driving range, the pressure drops and thus the electrical power consumption of the water pump must be reduced.
Smart Coolant Modules are subsystems that can be customized to meet specific customer requirements. They must therefore be compatible with most of BEVs Thermal Management Systems including Direct and Indirect Heat Pumps.
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Thermal Management Air conditioningHVAC Brushless Motors
A brushless blower motor is a component of the HVAC system, designed to operate the impeller and ensure optimal air circulation through the module. Compared to traditional brushed motors, brushless motors stand out for their quieter operation and lower energy consumption.
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Thermal Management Air conditioningHeating, Ventilation and Air-Conditioning (HVAC) Modules
The HVAC module ensures passenger comfort by regulating temperature, ventilation, air distribution, as well as humidity and air quality inside the cabin.
With the deployment of electric and autonomous vehicles, new trends of more spacious interior design with sleek dashboards have been introduced. Valeo has therefore enriched its portfolio of HVAC modules with an ultra-flat concept, perfectly adapted to this constraint, without compromising on efficiency.
In line with its commitment to sustainability, Valeo also offers HVAC modules designed with low-emission materials. We are notably the first Automitive Tier 1 Supplier to provide an HVAC with 100% recycled polymer materials as standard. These initiatives are part of Valeo’s ambition to achieve carbon neutrality by 2050.
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Thermal Management Air conditioningR-744 (CO2) Electrical Compressors
Valeo electrical Compressors enable high performance thermal management of A/C and Heat Pump systems, in electric and hybrid vehicles.
Designed and validated for efficient cabin and battery, cooling and heating, they can withstand severe operation conditions and support battery fast charging thanks to a wide operating high voltage range.
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Thermal Management Battery SolutionsImmersive EV Battery Cooling System
As EV range extension cannot rely solely on increasing the size of batteries, the only alternative to match ICE vehicle’s usage is to increase the charging speed. Most OEMs aim to reach 80% charging in less than 15 minutes; this is called ultra fast charging or high-power charging at 250 kW and above.
However, injecting that level of energy into the battery pack generates a significant heat that may damage the cells if proper cooling is not used.
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Thermal Management Air conditioningR-744 Standard Heat Pump
Valeo is strongly committed to sustainable development and environmental protection: it was the first equipment supplier to promote R-744 Standard Heat Pump (natural refrigerant), winning a PACE Award in 2017 for this innovative technology. (PACE: Premier Automotive Suppliers’ Contribution to Excellence).
R-744 (CO2) Refrigerant has a significantly lower climate impact than fluorinated refrigerants (R-134a or R-1234yf). It also offers more power and efficiency at extreme cold temperatures (-18°C) thanks to its thermodynamic properties. It is the most efficient way of heating an electric vehicle in cold conditions.
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Thermal Management Air conditioning
Standard Heat Pump
A Standard Heat Pump is the evolution of the Air Conditioning (A/C) system: it is now able to cool the cabin but also to warm it, using the thermodynamic cycle of a refrigerant gas.
Valeo develops multiple Standard Heat Pump architectures (Direct or Indirect) that serve as a “smart thermal network” to optimize overall energy and cabin comfort while maintaining driving range.
When the system is fully optimized, this Standard Heat Pump can extend the range of electric vehicles by up to 30% in winter.
Since our first serial application with a major European OEM, we have upgraded and simplified our system to improve efficiency (for example: adding a hygrometry sensor or enabling new functions such as Heat Recovery on battery and powertrain).
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Thermal Management Coolant SystemFront Cooling Modules
BEVs often have a thin air inlet located at the bottom of the front end while the cooling needs remain high and acoustic constraints are severe. Minimizing the electrical consumption is also key to stabilizing the vehicle’s range. To address these constraits, Valeo has developped tilted cooling modules as well as an ultra flat cooling module at 210 mm in the Z axis.
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Thermal Management Battery SolutionsRefrigerant Battery Cooler
High voltage batteries are expensive and very sensitive to temperature variations even when the vehicle is stopped and the battery is being charged. Valeo designs and manufactures compact and cost competitive battery cooling solutions (refrigerant, liquid and air cooling) to cater for all types of powertrains: hybrids in Japan and the U.S.; plug-in hybrids (PHEV) and full electric (EV) elsewhere. For PHEVs, Valeo full exchanger battery cooling solution on refrigerant is serial since 2015. For EVs, Valeo offers ultra-performing liquid battery coolers for prismatic and cylindrical Li-ion battery packs (China, the U.S. and Europe).
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Thermal Management Air conditioningSmart Heat Pump Dual
A Heat Pump is the evolution of the Air Conditioning (A/C) system: it is now able to cool the cabin but also to warm it, using the thermodynamic cycle of a refrigerant gas.
Over time, EV Heat Pump systems have increased in complexity, taking more and more space while their cost has become quite substantial. Designing compact modules is becoming the main trend.
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Thermal Management Air conditioningCabin Air Filters
Cabin air filters act like a barrier against dust, particulate matter and pollens that pass through the air inlet of the HVAC module.
Valeo offers a full range of cabin air filters, an essential contributor to safe and healthy air in the cabin, from standard filters to very high efficiency combined filters with activated carbon layers that can stop odors, harmful gases and drastically reduce allergen and virus activity.
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Thermal Management Coolant SystemA/C Condensers
Located in the front cooling module, air conditioning condensers are heat exchangers that are part of the refrigerant loop (A/C system). When going through this type of exchangers, the refrigerant becomes liquid, or put differently “condenses”, to release the heat it carries in the air that crosses the exchanger.
In R-744 A/C & heat pump systems, gas coolers have exactly the same function.
A/C Condensers can sometimes include an evaporation function – they are the called “evaporative-condensers”. Evaporators are exchangers that provide cold air while drying the air that goes through it to demist the windshield.
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Thermal Management Air conditioning
R-1234yf / R-744 Heat Pump Heat Exchangers
A water-cooled condenser is part of a specific hot loop/cold loop thermal management architecture. It connects the cooling loop to the air conditioning system. This innovative condensers use coolant rather than air to liquefy air conditioning refrigerant vapour.
Battery cooling needs are increasing and require higher condensation performance. But a condenser needs also to work as an evaporator to recover heat from air at cold temperatures to avoid too much impact on the vehicle range.
It is a key exchanger in a heat pump loop to heat up the cabin. However, when the heat pump cannot provide enough heat, a High Voltage Coolant Heater is required.
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Thermal Management Coolant SystemRadiators
Located in the front cooling module, radiators are part of the cooling system.
They can be used in cooling or heating mode depending on the cooling loop (with or without heat pump).
Valeo radiators are designed for vehicles with combustion, hybrid and full electric engines. The purpose of a car radiator is to improve cooling performance and reduce energy consumption.
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Thermal Management Battery Solutions
Battery Chillers
Chillers are used in direct and indirect heat pump architectures to cool the glycol that runs in the battery coolers. Chillers are connected to the air conditioning circuit. Their modular design in plates allows battery chillers to be used in all levels of vehicle electrification, from hybrid to 100% electric, and they can be adapted to any kind of refrigerant (R-1234yf or R-744).
