Optimization of Energy Management and Control for a Hybridized Through-the-Road Car Università degli Studi di Salerno

Format:

Book

Conference/Event

Author/Creator:

Tiano, Francesco Antonio, author.

Contributor:

Marino, Matteo

Rizzo, Gianfranco

Conference Name:

15th International Conference on Engines & Vehicles (2021-09-12 : Capri, Italy)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

The conversion of conventional vehicles into hybrid or electric cars is gaining industrial and scientific attention. Some countries, including Italy, France and India, have issued specific laws to regulate the conversion. In fact, this solution can represent a valid short-medium term choice for the reduction of CO2 emissions in the transport sector. Furthermore, from an LCA perspective, the reuse of vehicles further reduces energy consumption and pollutant emissions. Researchers from the University of Salerno have patented a retrofit kit, funded by the European LIFE program, for the conversion of a conventional vehicle into a solar hybrid car. Hybridization consists of the installation of In-Wheel Motors (IWM) in the rear wheels, an additional battery, photovoltaic panels and an electric powertrain control system. The vehicle is transformed into a Through-The-Road parallel Hybrid Electric Vehicle.The hybrid vehicle control system uses the feedback signals from IWMs (speed and torque), the SOC signal from the Battery Management System, and the vehicle speed, engine rpm and accelerator pedal signals from the vehicle's OBD portrait By means of inverse longitudinal dynamics it is possible to reconstruct the vehicle motion conditions with a good degree of precision.The control strategy adopted to drive the electric powertrain uses the well-known Equivalent Consumption Minimization Strategy (ECMS) and Pontryagin's Minimum Principle (PMP) technique. These techniques allow to control the IWMs for the phases of torque delivery, torque absorption during motion and energy recovery on down-hills.A proper strategy is applied to maximize the regenerative braking acting on rear wheels without compromising safety and braking comfort, and taking into account the simultaneous action of mechanical braking on front and rear wheels.Simulations have been carried out both in charge sustaining and in charge depletion. Substantial increase in vehicle fuel economy compared to the original configuration has occurred in many cases

Notes:

Vendor supplied data

Publisher Number:

2021-24-0107

Access Restriction:

Restricted for use by site license