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electrical Cabin Thermal Management (eCTM)

Efficient climate control for electric commercial vehicles

Webasto eCTM is engineered to provide optimal cabin temperatures for drivers and passengers in electric commercial vehicles, ensuring year-round comfort in any climate zone. This solution integrates advanced heating and cooling technologies into a unified, seamless approach tailored to different operating requirements. It is the perfect blend of innovation and functionality, ensuring both comfort and efficiency.

Electrical Cabin Thermal Management schematic showing ECU, heat‑pump, condenser with fans, coolant pump, HVAC unit and battery thermal control.

1  eCTM ECU (Cronus)

2  Condenser     

3  High Voltage Compressor

4  Coolant Pump

5  High Voltage Heater (HVH)

6  Air-Conditioning System

7  electrical Battery Thermal Management (eBTM)

8  Batteries

 

Simplified example illustration – may vary based on configuration.

Benefits of electrical Cabin Thermal Management (eCTM)

Easy installation & integration

Fast and seamless vehicle integration, utilizing common refrigerant and coolant interfaces, for both retrofit and new serial vehicle production

Tailored to needs

Seamless adaptation to vehicle requirements with adjustable heating and cooling performance and a modular functional approach

Various control options

Supports a wide range of control options, from simple on/off to full CAN integration

Complete solution with eBTM

Perfect match: the eBTM from Webasto ensures optimal battery performance of electric vehicles while extending their service life. 

Technology highlights

Front-view of a black electronic control module with connector and mounting tabs, engineered for Webasto thermal-management and vehicle-electrification systems.

Central ECU

The Webasto Cronus is the mastermind of eCTM: Serving as the intelligent central control unit that seamlessly controls air conditioning, heaters, and key components while ensuring smooth integration within the vehicle.

Webasto HVH 120 high-voltage heater front view with white housing and HV connectors; liquid-cooled system-level heater for battery and cabin thermal management.

Efficient High

Voltage Heater

High Voltage Heaters (HVH) deliver over 95% efficiency, providing powerful and reliable heating for even the most extreme conditions. The HVH heating element consists of a complex layer system and is firmly bonded to the heat exchanger. That is how almost loss-free, rapid conversion of electrical power to heat is achieved. 

Webasto Slim Profile SP 80 integrated AC: low-profile roof HVAC module with sealed refrigerant ports and vehicle electrical connector for climate control.

Air conditioning unit

Select the perfect air conditioning unit from the wide Webasto portfolio or combine it with the existing vehicle air conditioning unit.


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