Battery concept to minimize the climate-related reduction of electric vehicles driving range

Traktionsbatterie als thermischer Speicher

“…Between 35-15 °C battery temperature, 1.7 kWh of heat can be transferred into the water-glycol-cycle with a maximum heat transfer rate of 1.9 kW. The maximum heat transfer rate is limited by the thermal conductivity of the PCM, which is increased by 400 %, due to the addition of boron nitride particles, while maintaining the same level of electrical insulation [3]. In addition, the thermal contact of the PCM could significantly be improved, due to the installation of copper pins, as can be seen in Figure 3 shows the temperature distribution inside the battery module at the end of a 15-minute charge at maximum charging rate, which results in a heat generation of 0.83 W/cell.…”

Evaluation of heating efficiency and thermal comfort in special purpose vehicle cabins

“…The most of researches related to the problems of thermal comfort testing refer to savings that can be achieved during the operation of AC system, in order to reduce fuel and electric energy consumption, i.e., to achieve more autonomy in vehicle movement [6][7][8][9][10]. The use of air conditioning system not only considerably improves the comfort during driving, but it also reduces the internal noise and the need for additional opening of the window.…”

Hybrid Model Predictive Control for Fully Electric Vehicle Thermal Management System Optimal Mode Selection

“…One of them is their weather-dependent range, which means that under cold ambient temperatures the range of vehicles dramatically decreases [1] down to less than half of their nominal range. This issue partially depends on increased high-voltage (HV) battery internal resistance under cold conditions [2]. Secondly, this issue is caused also by Heating, Ventilation, and Air Conditioning (HVAC) system, which needs to be powered from HV battery.…”