VITESCO TECHNOLOGIES Romania uses Ansys for automotive applications
Written by Oana Arcu
Vitesco Technologies brings together the full expertise of drive technologies. The company’s aim is to develop innovative, efficient electrification technologies for all types of vehicles. Portfolio includes 48-volt electrification solutions, electric drives, and power electronics for hybrid and battery-electric vehicles. Furthermore, the product range counts electronic controls, sensors and actuators as well as solutions for exhaust after-treatment. With each and every solution, Vitesco Technologies consistently pursues its mission: POWERING CLEAN MOBILITY.
Summary - HV Inverter
- Task
The High Voltage (HV) inverter is the component for electrified vehicles which controls the e-machine. It manages both the motor and the generator mode.
Vitesco Technologies' HV inverter can be used for plug-in hybrid vehicles (PHEV) as well as for battery electric vehicles (BEV).
- Solution
To study the thermal behavior of the High Voltage (HV) inverters, we perform thermo-electrical simulations using Ansys Mechanical. In our analysis we account for electric currents and thermal loads in order to obtain the thermal distribution of the system.
- Customes benefits
Building a functional simulation model of the High Voltage (HV) inverter by means of Ansys Mechanical, allows us to study and optimize the thermal performance of our products while providing fast feedback to our customers.
Project details
- Task
Vitesco Technologies integrates innovative and efficient powertrain system solutions for vehicles, such as battery electric (EV), hybrid (HEV), and fuel cell electric (FCEV). Subject to all the possible stress caused by thermal and dynamic loads, the High Voltage (HV) inverters must be able to handle high power and currents. At the same time, we must also account for the Electro Magnetic Compatibility (EMC) challenges as well as provide fail-safe operation to ensure dependability and safety for the driver and passengers.
The thermo-electric simulation model of the inverter is very important since it allows us to easily track the impact of any changes that might be brought to the product in the development process. The thermal map of the assembly shows us the areas that we can further optimize to achieve a better thermal performance of our products in the R&D phase.
- Solution
To study the thermal behavior of the High Voltage (HV) inverters we perform thermo-electrical simulations using Ansys Mechanical. Using APDL commands we also carry out transient thermo-electrical simulations for various driving profiles. In our analysis we use as input electrical currents and thermal loads in order to determine the thermal map of the system. From the thermal map we identify the hot spots and then we proceed to optimize the thermal behavior of specific components. The comparison between several geometry variants is also facilitated.
- Customer benefits
Building a functional thermo-electric simulation model of the High Voltage (HV) inverter by means of Ansys Mechanical, allows us to:
Summary - LV Converter
- Task
The 48 V DC/DC converter transforms 12 V power to 48 V power and vice versa. It stabilizes and connects the two voltage levels of the vehicles electrical system.
Vitesco Technologies’ 48 V DC/DC converter can be used for vehicles equipped with mild hybrid systems for advanced start-stop, coasting and electric boost.
Designing an appropriate cooling system for the converters is a mandatory requirement and can be a very challenging task.
- Solution
To determine the cooling capabilities of the 48 V DC/DC coolers and the pressure drops (for water cooled systems) we perform CFD simulations using Ansys CFX.
- Customer benefits
Building a functional CFD simulation model of the 48 V DC/DC converter cooler by means of Ansys CFX, allows us to study and optimize the cooling capabilities of our products while providing fast feedback to our customers.
Project details
- Task
Vitesco Technologies integrates innovative and efficient powertrain system solutions for vehicles, such as battery electric (EV), hybrid (HEV), and fuel cell electric (FCEV).
Subject to all the possible stress caused by thermal and dynamic loads, the 48 V DC/DC converters must be able to handle high power and currents.
The CFD simulation model of the 48 V DC/DC converter is very important since it allows us to easily track the impact of any changes that might be brought to the product in the development process. It also helps in choosing the best geometrical configuration of the cooling system to ensure optimum cooling capabilities.
Solution
To study the fluid flow and the cooling capabilities in the 48 V DC/DCs coolers we perform CFD simulations using Ansys CFX. We check the thermal performance of different types of coolers to chose the most appropriate geometry variant.
Customer benefits
Building a functional CFD simulation model of the 48 V DC/DC converters by means of Ansys CFX, allows us to: