800-volt heating solutions for electric vehicles: product news from Eberspaecher
Eberspächer offers two new solutions for 800-volt vehicle electric systems: a coolant heater with thick film technology and a air heater with PTC technology. These solutions provide targeted, demand-based heat output for the passenger cabin and battery conditioning. Both systems can be integrated into OEM systems on a modular basis.
Battery range requirements, charging times, and comfort are key issues when it comes to electromobility. Indeed, optimized thermal management plays an important role here. With two new solutions for 800-volt electrical systems, Eberspaecher is expanding its portfolio to include coolant and air heaters.
In fact, Eberspächer offers two new solutions for 800-volt vehicle electric systems: a coolant heater with thick film technology and a air heater with PTC technology. These solutions provide targeted, demand-based heat output for the passenger cabin and battery conditioning. Both systems can be integrated into OEM systems on a modular basis.
Eberspaecher’s advanced heating solutions for EVs
Speaking of the first product (pictured above), the core component is a thick film element (TFE), which is applied to a metal plate via a screen-printing process. This design provides high heat output in minimal installation space. The component conditions the vehicle battery and achieves up to 12 kW of output at 800-volt – a key contribution to extending battery life and reducing charging times. A further advantage is the flexibility of the voltage. Although many BEV platforms rely on an 800-volt architecture, they must also be compatible with the 400-volt charging infrastructure, as this currently accounts for the majority of the global charging network. The coolant heater has been designed specifically for this scenario, delivering sufficient output even at 400-volt.
The air heater, which is installed directly in the air-conditioning system, supplements the portfolio. The multi-zone function enables the driver to control the temperature separately in up to four zones in the interior. For example, the driver can set different temperatures for the driver and front passenger sides. PTC technology is used for the air heaters, which are located close to the passenger and partly within the firewall. Due to the system’s inherent self-regulating effect, reliable protection against overheating is guaranteed With a power range of 3-8 kW, the heater has been designed to accommodate both 400- and 800-volt architectures.
