A5048441222- Advanced Combustion Engine Technologies
- Vehicle emissions and performance
- Combustion and flame dynamics
- Refrigeration and Air Conditioning Technologies
- Electric and Hybrid Vehicle Technologies
- Aerodynamics and Fluid Dynamics Research
- Fuel Cells and Related Materials
- Catalytic Processes in Materials Science
- Advanced Battery Technologies Research
- Electrocatalysts for Energy Conversion
- Engineering Applied Research
- Real-time simulation and control systems
- Advanced battery technologies research
- Building Energy and Comfort Optimization
- Heat transfer and supercritical fluids
- Heat Transfer and Optimization
- Hydraulic and Pneumatic Systems
- Advanced Control Systems Optimization
- Antibiotics Pharmacokinetics and Efficacy
- Chemical Thermodynamics and Molecular Structure
- Electric Vehicles and Infrastructure
- Advanced machining processes and optimization
- Mechanical Engineering and Vibrations Research
- Tribology and Lubrication Engineering
- Injection Molding Process and Properties
University of Michigan–Dearborn
2013-2024
University of Michigan
2001-2014
United States Army
2001
Luleå University of Technology
2001
United States Department of the Army
2001
China Automotive Technology and Research Center
1999
University of Arizona
1981
A quasi -dimensional, multi-zone, direct injection (DI) diesel combustion model has been developed and implemented in a full cycle simulation of turbocharged engine. The accounts for transient fuel spray evolution, fuel-air mixing, ignition, NO soot pollutant formation. In the model, is divided into number zones, which are treated as open systems. While mass energy equations solved each zone, simplified momentum conservation equation used to ca lculate amount air entrained zone. Details DI...
This paper describes a test cell setup for concurrent running of real engine and vehicle system simulation, its use evaluating performance when integrated with conventional hybrid electric driveline/vehicle. engine-in-the-loop (EIL) uses fast instruments emission analyzers to investigate how critical in-vehicle transients affect response transient emissions. Main enablers the work include highly dynamic AC dynamometer accompanying computerized control computationally efficient simulation...
The engine cooling system for a typical class 3 pickup truck with medium duty diesel was modeled commercial code, GT-Cool, in order to explore the benefit of controllable electric pump on performance and operation. As first step, model conventional mechanical coolant validated experimental data. After validation, submodel replaced submodel, then potential fuel economy investigated simulation. Based flow analysis, modified thermostat hysteresis proposed reduce recirculating effort. It also...
In this study, numerical simulations of the vehicle cooling system and powertrain a virtual heavy duty tracked series hybrid electric (SHEV) is developed to investigate thermal responses power consumptions system. The output data from simulation are fed into provide operating conditions components. Three different architectures constructed with concepts modeled factors that affect performance consumption each identified compared other. results show architecture SHEV should be considering...
In this study, a dynamic model of vehicle with eight or more speed automatic transmission (A/T) has been developed for the analysis shift quality and behavior during events. Subsystem models engine, torque converter, transmission, drivetrain, control unit (TCU), are integrated signal information interface. The subsystems included in were carefully selected to improve accuracy by comparing simulation results test data. systematic modeling approach based on matrix operation proposed study...
Positive displacement pumps are used in automotive transmissions to provide pressurised fluid various hydraulic components the transmission and also lubricate mechanical components. The output flow of these increases with pump/transmission speed, almost linearly, but requirements often saturate at higher speeds, resulting excess capacity that must be wasted by allowing it drain back sump. This represents a parasitic loss leading fuel economy. To overcome this issue, variable have been...
Abstract A cabin climate control system, often referred to as a heating, ventilation, and air conditioning (HVAC) is one of the largest auxiliary loads an electric vehicle (EV), real‐time optimal HVAC brings significant energy‐saving potential. In this article, linear‐time‐varying (LTV) model predictive (MPC)‐based approach presented for energy‐efficient EVs. modification made cost function in considered MPC problem simplify Hessian matrix utilizing quadratic programming computation....
The target cascading methodology is applied to the conceptual design of an advanced heavy tactical truck.Two levels are defined: integrated truck model represented at top (vehicle) level and four independent suspension arms lower (system) level.Necessary analysis models developed, problems formulated solved iteratively both levels.Hence, vehicle variables system specifications determined in a consistent manner.Two different sets two propulsion systems considered.Trade-offs between...
We compare a new ultrafiltration technique, involving unique Millipore membrane, with the classical method of equilibrium dialysis for determining fraction thiopental not bound to serum proteins. This fraction, as determined by at 37 degrees C, ranged between 12 and 16% total concentrations 50 microgram/L 10 mg/L serum. In contrast, C yielded 49% higher value unbound thiopental: 26.3 (SD 2.6)%. Determined room temperature (24 C), there was no statistically significant difference results two...
Energy-efficient thermal management of heating, ventilation, and air-conditioning (HVAC) battery cooling systems is essential for an enhanced driving range electric vehicles. With recent advances in vehicle connectivity technologies computation units, a predictive model has been emphasized control design. However, the system complexity due to refrigerant circuits coupling with makes it challenging develop computationally inexpensive potential applications. This paper presents novel...
An accurate, sensitive, and specific gas-liquid-chromatographic procedure is described for determining concentrations of thiopental in human plasma. After a double extraction 0.2 or 1.0 mL plasma containing phenobarbital as an internal standard, the standard are derivatized polar non-aqueous solvent system with iodomethane. The reaction mixture then evaporated, residue reconstituted ethyl acetate, 20 microL injected into 3% OV-17 column gas chromatograph equipped nitrogen-phosphorus...
The cooling system of Series Hybrid Electric Vehicles (SHEVs) is more complicated than that conventional vehicles due to additional components and various requirements different components. In this study, a numerical model the for SHEV developed investigate thermal responses power consumptions system. created virtual heavy duty tracked SHEV. powertrain vehicle also modeled with Vehicle-Engine SIMulation (VESIM) previously by Automotive Research Center at University Michigan. VESIM used...
Diesel engines are gaining in popularity, penetrating even the luxury and sports vehicle segments that have traditionally been strongly favored gasoline as performance refinement of diesel improved significantly recent years. The introduction sophisticated technologies such common rail injection (CRI), advanced boosting systems variable geometry multi-stage turbocharging, exhaust gas after-treatment renewed interest engines. Among technical advancements engines, turbocharging is key to...