Vehicle Power Management: Modeling, Control and Optimization by Xi Zhang

By Xi Zhang

Vehicle energy Management addresses the problem of bettering car gas financial system and lowering emissions with out sacrificing motor vehicle functionality, reliability and sturdiness. It opens with the definition, ambitions, and present learn problems with car strength administration, ahead of relocating directly to an in depth advent to the modeling of car units and elements desirous about the car energy administration approach, which has been confirmed to be the main low in cost and effective process for initial-phase car study and design.

Specific motor vehicle strength administration algorithms and techniques, together with the analytical process, optimum keep an eye on, clever procedure methods and wavelet expertise, are derived and analyzed for real looking functions. Vehicle strength Management additionally provides an in depth description of numerous key applied sciences within the layout levels of hybrid electrical autos containing battery administration platforms, part optimization, hardware-in-the-loop and software-in-the-loop.

Vehicle strength Management offers graduate and top point undergraduate scholars, engineers, and researchers in either academia and the automobile undefined, with a transparent realizing of the thoughts, methodologies, and clients of car strength management.

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3 Power Demand in Drive Cycles Fig. 13 Traction force in UDDS 31 2500 2000 Traction Force (N) 1500 1000 500 0 -500 -1000 -1500 -2000 0 200 400 600 800 1000 1200 1400 t (s) related to vehicle kinetics, while neglecting items not considered being of significance. The UDDS drive cycle is employed here as an example for specific power analysis. As described in Sects. , a ¼ 0) is the sum of aerodynamic and rolling friction forces and the force due to the acceleration. Based on Eqs. 1 Given the following parameters for a parallel HEV,cr ¼ 0:009; g ¼ 9:81 m/s2 cr ¼ 0:009; q ¼ 1:2 kg/m3 ; A ¼ 2 m2 ; and m ¼ 1350 kg: The traction force and power demand of the vehicle during the UDDS drive cycle can be obtained from the Advanced Vehicle Simulator (ADVISOR) [28], using default parallel HEV model in ADVISOR, as shown in Fig.

S. 4 Complex Hybrid There exist other configurations of HEVs which cannot be classified into the above three types. An example is shown in Fig. 8 which has dual-axle four-wheel drive capability with multiple electric machines and an ICE. It is very much similar to the series–parallel hybrid system. However, the main difference is that the electric motor connected to the power split/combine device in the complex hybrid allows for bidirectional power flow, while the generator in the series–parallel hybrid only permits unidirectional power flow.

The percentage for various energy losses within a vehicle is shown in Fig. 9. , hot gases, have more available thermal energy than the original compressed fuel–air mixture. Thus the pistons in the engine are driven by the high-pressure hot gases. Then the remaining hot gases are vented and this allows the piston to return to its previous position. The piston then proceeds to the next phase of its cycle. The heat which is not translated into work is considered as a waste product. Generally speaking, the ICE is not efficient at converting the chemical energy to mechanical energy due to losing energy in engine friction, pumping air in and out of the engine, and wasted heat.

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