For prospective electric vehicle (EV) buyers, comfort is more than just the temperature of the cabin—it's peace of mind. Many would-be customers are "cooled" from actually purchasing an EV due to range anxiety—the concern that the battery will run out of power before they reach their destination. Range anxiety and cost are cited as the two most significant barriers to purchasing.
When discussing the global automotive market, you can't get away from the topics of fuel economy and emissions. To be compliant with tightening standards (such as Corporate Average Fuel Economy (CAFE)), OEMs are buckling down on their approaches to greater efficiency.
Emerging technologies such as fully-electric fleets and autonomous cars have us feeling that we are approaching a George-Jetson-like era. Behind these remarkable industry movements are other initiatives that will make these technologies possible.
One such initiative is lightweighting. The goal of lightweighting is to reduce the overall weight of a vehicle to improve fuel economy (or range for electric vehicles) and meet ever-tightening emissions standards. OEMs have tackled the challenge of lightweighting several ways, including changing the shape and composition of certain components or removing them altogether. Lately, OEMs have made significant strides by using lighter materials for new vehicles.
Finding the optimal solution to a design challenge almost always requires a complex coupling process. CoTherm, our coupling software, allows you to plan, control, and monitor multi-physics simulations for complex transient simulations like drive cycle scenarios. In order for advanced simulations to be worth your while, it is important to be familiar with the process and prerequisites so you can set yourself up for success. As we transition from discussing the importance of coupling as a whole to the necessity of accurate inputs, we will look at the specific things you must do well in CoTherm to get successful results from advanced simulations.
A proper model of your exhaust system provides a critical boundary condition for your underhood/underbody thermal management. Many different simulation methods are chosen today based on the level of fidelity that is required and the boundary conditions that are available. There are four widely recognized methods for simulating exhaust systems.