CFP-1249
The introduction of 48V in the automotive sector continues to be driven by the need for improved energy efficiency, higher performance, and the demand for cost savings. One focus is particularly on the conversion of high-current brushless DC motor (BLDC) applications, such as electric power steering, pumps, fans, etc. Power MOSFETs are typically used to […]
CFP-1248
As electric axles (e-axles) become increasingly compact and functionally integrated (X in 1 solutions), integrating power electronics with innovative and lightweight housings while ensuring thermal efficiency and durability is a major engineering challenge. To do so, the cases serve several purposes: • Protection The case shields electronic components from external environmental factors like dust, moisture, […]
CFP-1252
An innovative DC-link capacitor solution for the main xEV powertrain Inverter has been presented to the market as of July 2024. The innovation is sustained by the conjunction of four pillars: modularity and scalability; design for application; design for manufacturing; and standardization (catalog product). After a brief review of these pillars, this paper focuses on […]
CFP-1251
Abstract To achieve several hundred Amperes of output current in high voltage, two-level, automotive traction inverters with Silicon Carbide MOSFET B6 topology, still, parallelization of chips is required. To ensure high reliability, optimized power densities and efficiency, a balanced electric and thermal stress is crucial. This paper describes the hardware demonstration of the reduced relative […]
CFP-1250
This paper presents a cutting-edge automotive inverter technology designed to achieve highest efficiency in electric vehicle (EV) powertrains targeting “SiC performance @Silicon costs”. The inverter power core is based on 650V D-mode GaN HEMT technology D³GaN (Direct Drive D-mode technology) that combines lowest switching losses and excellent gate robustness. Direct gate control of the HEMT […]
CFP-1265
Achieving freedom from interference as required by ISO 26262 in modern vehicles represents an increasing challenge from the perspective of functional safety. The electric power steering (EPS) faces particularly strict requirements due to higher axle loads, higher levels of ADAS (L3+), and steer-by-wire systems. This results in higher ASIL classifications and reduced fault-tolerant time intervals […]
CFP-1264
Lithium-ion batteries are critical to modern technologies and have experienced significant growth in recent years. This increasing usage underscores the need for efficient diagnostic methods, particularly for real-time monitoring during operation. An intuitive method for investigating internal processes, as reflected by the impedance of the cell, is the distribution of relaxation times (DRT). Often, the […]
CFP-1263
The increasing complexity of hybrid and electric vehicles presents significant challenges for efficient thermal management. This work introduces a digital prototype approach for modeling a hybrid vehicle thermal management system. The method combines low-dimensional, physics-based models with machine learning techniques to achieve faster-than-real-time simulations over complete driving cycles while maintaining high accuracy in predicting component […]
CFP-1262
Modern testing of traction inverters is typically carried out using advanced inverter test systems, which include motor emulation among other components. Despite the high technical standard of these systems, gaps remain in the test coverage – particularly regarding the realistic representation of the HV-DC network of electric vehicles. This work begins by systematically identifying this […]
CFP-1261
High power applications like DCDC converter for battery electric vehicles face various challenges on system level, like increased power density, increased level of integration, higher switching frequency and increased efficiency. All these technical key parameters are worthless if costs and manufacturability of these systems are not considered in the same manner. Especially the power semiconductors […]
