A5013620497- Advanced Combustion Engine Technologies
- Vehicle emissions and performance
- Electric and Hybrid Vehicle Technologies
- Refrigeration and Air Conditioning Technologies
- Biodiesel Production and Applications
- Turbomachinery Performance and Optimization
- Combustion and flame dynamics
- Aerodynamics and Fluid Dynamics Research
- Real-time simulation and control systems
- Electric Vehicles and Infrastructure
- Hydraulic and Pneumatic Systems
- Technical Engine Diagnostics and Monitoring
- Advanced Battery Technologies Research
- Energy, Environment, and Transportation Policies
- Vehicle Dynamics and Control Systems
- Catalytic Processes in Materials Science
- Tribology and Lubrication Engineering
- Heat transfer and supercritical fluids
- Autonomous Vehicle Technology and Safety
- Electric Motor Design and Analysis
- Heat Transfer Mechanisms
- Advanced Sensor Technologies Research
- Vehicle Noise and Vibration Control
- Counseling Practices and Supervision
- Advanced Thermodynamic Systems and Engines
University of Bath
2016-2025
Koenigsegg Automotive (Sweden)
2023
Simon Fraser University
2021
Virtual Vehicle (Austria)
2018
Applied Mathematics (United States)
2013-2017
Engineering and Physical Sciences Research Council
2013-2017
The paper discusses the concept, design and final results from 'Ultra Boost for Economy' collaborative project, which was part-funded by Technology Strategy Board, UK's innovation agency.The project comprised industry-and academiawide expertise to demonstrate that it is possible reduce engine capacity 60% still achieve torque curve of a modern, large-capacity naturally-aspirated engine, while encompassing attributes necessary employ such concept in premium vehicles.In addition achieving...
This paper presents two torque estimation methods for vehicle engines: unknown input observer (UIO) and adaptive parameter estimation. We first propose a novel yet simple based on the crankshaft rotation dynamics only. For this purpose, an invariant manifold is derived by defining auxiliary variables in terms of first-order low-pass filters, where only one constant (filter coefficient) needs to be tuned. These filtered are used calculate estimated torque. Robustness UIO against sensor noise...
Stochastic dynamic programming (SDP) is applied to the optimal control of a hybrid electric vehicle in concerted attempt deploy and evaluate such controller real world. Practical considerations for robust implementation SDP algorithm are addressed, as choice discount factor used how charge sustaining characteristics can be examined adjusted. A novel cost function incorporating square battery (C-rate) an indicator electrical powertrain stress, with aim lessening affliction real-world concerns...
Driver training schemes and eco-driving techniques can reduce fuel consumption by 10%, but their effectiveness depends on the willingness of drivers to change behavior, changes may be short lived. Onboard driver assistance systems have been proposed, which encourage driving style improvement. Such systems, when fitted in commercial vehicles, assume some authority since uneconomical styles reported a fleet manager. A system has developed tried field with vehicle drivers. The aims encouraging...
The performance of the conventional engine-cooling system has always been constrained by passive nature and need to provide required heat-rejection capability at high-power conditions. This leads considerable losses in cooling part-load conditions where vehicles operate most time. A set design operating features from advanced engine- systems is reviewed evaluated for their potential improved engine protection while improving fuel efficiency emissions output. Although these demonstrate...
The paper evaluates the results of tests performed using mid- and high-level blends low-carbon alcohols, methanol ethanol, in admixture with gasoline, conducted a variety test engines to investigate octane response, efficiency exhaust emissions, including those for particulate matter. In addition, pure alcohols are tested two engines, show maximum response that can be expected terms knock limit as result beneficial properties investigated. All work has been blending gasoline taking place...
All drivers have their own habitual choice of driving behavior, causing variations in fuel consumption. It would be beneficial to classify these styles and extract the most economical ecological patterns. However, style each driver is not consistent may vary within a single trip. Therefore, this paper proposes novel technique robustly using Support Vector Clustering approach, which attempts differentiate individual's pattern provides an objective classification. Real data three human...
This brief addresses the emission reduction of spark ignition engines by proposing a new control to regulate air-fuel ratio (AFR) around ideal value. After revisiting engine dynamics, AFR regulation is represented as tracking injected fuel amount. allows take film dynamics into consideration and simplify design. The lumped unknown in formulation are online estimated suggesting effective system estimator. variable can be superimposed on commercially configured, well-calibrated gain scheduling...
Electric coolant pumps for IC engines are under development by a number of suppliers.They offer packaging and flexibility benefits to vehicle manufacturers.Their full potential will not be realised, however, unless an integrated approach is taken the entire cooling system.The paper describes such system comprising advanced electric pump with necessary flow controls supervisory strategy running on automotive microprocessor.The hardware control described together simulation developed allow its...
The work reported in this paper details an experimental study of the effects cooling system hardware changes on diesel engine emissions and fuel economy. Experiments were performed under both steady state transient conditions complemented by statistical assessments. Techniques for assessing thermal integrity as a consequence such are also presented. An design was constructed to investigate effect water pump throttling, coolant flow control through oil cooler, adoption pressure resistive...
Hybrid electric vehicles offer the potential for fuel consumption improvements when compared with conventional vehicle powertrains. The benefits which can be realised utilising hybrid architecture are dependent on how much braking energy is regenerated, and well regenerated utilised. A number of power management strategies have been proposed in literature. Owing to prospect real-time implementation, many these proposals centred use heuristics. Despite research advances made, key challenge...
The aim of this paper is to identify and investigate the effect small changes in test conditions when quantifying fuel consumption. Twelve set-up variables were identified intentionally perturbed from a standard condition, including removing power-assisted steering pump. Initially design-of-experiments (DoE) approach was adopted results showed that most tested parameters had significant effects on Most these greater than typical technology assessed chassis dynamometer facilities. For...
Modifications to the coolant and oil circuits of a modern production 2.4 l diesel engine have been made in an attempt promote warm-up reduce fuel consumption. The new system used cool exhaust gas recirculation (EGR) gases incorporates number flow control valves heat loss during warm-up. was run over cold-start New European Drive Cycles with various strategies as screening exercise understand behaviour system. Fuel consumption benefits up 4 per cent were observed, but these accompanied by 3...
A review of technologies surrounding the thermal management system modern diesel engine with increased attention on fuel consumption is presented. system-based approach has been adopted, looking at interaction other key systems. Previous innovation aimed reducing power cooling or incorporating different strategies and improving warm-up rate for improved by higher operating temperatures. Electrical pumps can operate independently speed, precision nucleate boiling have heat transfer within...
Many Diesel engine development programs concentrate almost exclusively on steady state investigations to benchmark an engines performance. In reality, the inter-action of engine's sub-systems under transient evaluation is very different from that evident during evaluation. The operation a complete system complex, and collecting test data demanding, requiring sophisticated facilities for both control measurement. This paper highlights essential characteristics when undertaking testbed...
The paper discusses investigations into improving the full-load and transient performance of Ultraboost extreme downsizing engine by application SuperGen variable-speed centrifugal supercharger. Since its output stage speed is decoupled from that crankshaft, potentially especially attractive in a compound pressure-charging system. Such systems typically comprise turbocharger, which used as main charging device, compounded at lower charge mass flow rates supercharger second boosting stage....