Powertrain Warm-up Improvement using Thermal Management Systems
نویسندگان
چکیده
Adjusting operating temperature of the engine in the steady state and during warm-up improves fuel consumption and reduces engine emission through higher operating temperatures. Also it can improve thermal comfort by faster cabin heater performance. Thermal fluid analysis by 1-D simulation is an effective tool for studying the control of the entire cooling system and optimization of engine performance by using active control thermal management systems which allow high tolerance for coolant temperature across speed-load map of the engine. In this work a 1-D simulation model (GT-SUITE) was used to evaluate the effect of warm-up improvement on powertrain performance by using electric coolant pumps and fans, electronic control valve, and an electronic control system with PID feedback. Firstly, the cooling system model was validated with experimental data, and then replaced with an advanced thermal management system. The effect of fan speed and pump speed on engine coolant temperature with different thermal management strategy during warm up was studied. Depending on the operating conditions, the results showed an improvement in brake specific fuel consumption (3-9%) and stability improvement in outlet coolant temperature due to controller tuning during steady state operation.
منابع مشابه
Energy Management Strategy Considering Cabin Heating for Plug-in Hybrid Electric Vehicle
In this study, an integrated energy management strategy(IEMS) was proposed for a PHEV(Plug-in hybrid electric vehicle). The IEMS controls the engine on-off considering not only powertrain system(battery SOC, vehicle speed, accelerator pedal, brake pedal) but also thermal system condition such as cabin temperature. Analysis of the integrated powertrain and thermal system was conducted to enhance...
متن کاملAnalysis of Environmental and Economic Benefits of Integrated Exhaust Energy Recovery (EER) for Vehicles
Differing from those traditional vehicle exhaust heat recovery systems which just provided thermal energy directly for cabin warming, integrated Exhaust Energy Recovery (EER) which is researched and developed mainly in recent years aims to convert exhaust thermal energy to mechanical or electric energy for increasing the total thermal efficiency and the total power of powertrain. In the study p...
متن کاملProject 4.23: Powertrain Thermal Management Strategies Based on Active Monitoring and Control
متن کامل
Climate Control Load Reduction Strategies for Electric Drive Vehicles in Cold Weather: Preprint
When operated, the cabin climate control system is the largest auxiliary load on a vehicle. This load has significant impact on fuel economy for conventional and hybrid vehicles, and it drastically reduces the driving range of all-electric vehicles (EVs). Heating is even more detrimental to EV range than cooling because no engine waste heat is available. Reducing the thermal loads on the vehicl...
متن کاملThe Impact of Nano-fluid Concentration Used as an Engine Coolant on the Warm-up Timing
Running the industrial components at a proper temperature is always a big challenge for engineers. Internal combustion engines are among these components in which temperature plays a big role in their performance and emissions. With the development of new technology in the fields of ‘nano-materials’ and ‘nano-fluids’, it seems very promising to use this technology as a coolant in the interna...
متن کامل