Effect of Different Regenerative Braking Strategies on Braking Performance and Fuel Economy in a Hybrid Electric Bus Employing CRUISE Vehicle Simulation

Sangtarash, Farhad; Esfahanian, Vahid; Nehzati, Hassan; Haddadi, Samaneh; Bavanpour, Meisam Amiri; Babak, Haghpanah

doi:10.4271/2008-01-1561

Cited by 54 publications

(39 citation statements)

References 7 publications

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“…As when the vehicle is braking, the generated braking torque is transferred to the electric motor which it allows an electric brake with the electric motor (same as an engine brake) [2]. This is made to avoid a full mechanical braking process (by the callipers in the brake disks).…”

Section: Brake Controllermentioning

confidence: 99%

Development of an in-series hybrid urban bus model and its correlation with on-board testing results.

Zamora

Martínez

Carrasco

et al. 2013

WEVJ

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New emission standards implemented in EU has resulted in an increasing use of passenger hybrid vehicles as well as hybrid heavy-duty transport vehicles. Manufacturers have been offering a wide range of efficient and lower emission vehicles to fulfil these Regulations. Besides commercial vehicles, it it's also important to consider the use and implementation of hybrid urban buses because it is a massive way of transportation that is used every day in the bigger cities. The use of hybrid urban buses is significant to achieve the goal for lower emissions and better energy efficiency, due to the city utilization involves several stops and accelerations. This paper considers the comparison between the results obtained from software simulation of a complete in-series hybrid urban bus platform (develop under AVL Cruise® software) and the data obtained from real on-board measurements made in the city of Madrid. The model involves an in-series hybrid electric bus, meaning that the propulsion system is supplied by an electric motor which receives energy from a stored source (battery). The analysis of the results shows a very accuracy approach and lower emission vehicle, with an error below 5% in fuel consumption modelling a real driving cycle up to 8km.

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Section: Brake Controllermentioning

confidence: 99%

Development of an in-series hybrid urban bus model and its correlation with on-board testing results.

Zamora

Martínez

Carrasco

et al. 2013

WEVJ

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show abstract

“…Recovering the braking energy and reusing it can significantly improve the fuel economy of a vehicle which is subject to frequent braking events such as a city bus. [6][7][8][9] The more regenerative braking operates, the greater the improvement in fuel economy which can be obtained theoretically. When the driving motor as the generator operates in all feasible fields without any constraint to the greatest extent possible, the vehicle can acquire the greatest amount of additional energy.…”

Section: Regenerative Braking For Target Vehicle Systemmentioning

confidence: 99%

“…2 Among various methods to improve fuel economy, [3][4][5] recovering the braking energy and reusing it can significantly improve the fuel economy of a vehicle which is subject to frequent braking events such as city bus. [6][7][8][9] The more driving motor operates widely as generator, the more braking energy can be absorbed. However, it isn't realistic in terms of performance for components.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of regenerative braking effect for E-REV bus according to characteristic of driving cycle

Choi

Jeong

Park

et al. 2015

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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The extended-range electric vehicle (E-REV) is an electric vehicle concept that has a light engine to allow an extended driving range. One of the most important features of these vehicles, based on electricity, is their ability to recover significant amounts of braking energy in a process known as regenerative braking. The more driving motor operates widely as generator, the more braking energy can be absorbed. However, it is not realistic in terms of performance for components. This study proposes three regenerative braking torque maps as the constraints to consider their performance. The results of fuel economy for simulations while applying proposed torque maps are compared with those of simulations without any constraints to evaluate effect of regenerative braking for E-REV bus according to characteristic of driving cycle. The characteristics of driving cycles are analyzed to find relationship between driving cycle and fuel economy. The aggressiveness of the driving cycles shows a linear relationship with regard to the difference in the fuel economy. This result can be used to develop power distribution control strategies with regenerative braking models to improve fuel economy levels.

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“…In hybrid electric vehicle's (HEV) braking, the regenerative braking can not be used only by itself due to the following reasons: 1) the regenerative braking force is not large enough to cover the driver's demanded braking force, 2) battery state of charge (SOC) limitation, 3) vehicle (motor) speed, etc [1] [2]. Therefore, friction braking should be needed together with the regenerative braking and a control algorithm is required to ensure active co-operative control between the regenerative braking and friction braking [3] [4].…”

Section: Introductionmentioning

confidence: 99%

Development of Regenerative Braking Co-operative Control System for Automatic Transmission-based Hybrid Electric Vehicle using Electronic Wedge Brake

Bak

et al. 2013

WEVJ

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This research proposes a regenerative braking co-operative control system for the automatic transmission (AT)-based hybrid electric vehicle (HEV). The brake system of the subject HEV consists of the regenerative braking and the electronic wedge brake (EWB) friction braking for the front wheel, and the hydraulic friction braking for the rear wheel. A regenerative braking co-operative control algorithm is suggested for the regenerative braking and friction braking, which distributes the braking torque according to the driver's demand. A vehicle test was performed to evaluate the proposed braking system and cooperative control algorithm.

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Effect of Different Regenerative Braking Strategies on Braking Performance and Fuel Economy in a Hybrid Electric Bus Employing CRUISE Vehicle Simulation

Cited by 54 publications

References 7 publications

Development of an in-series hybrid urban bus model and its correlation with on-board testing results.

Development of an in-series hybrid urban bus model and its correlation with on-board testing results.

Evaluation of regenerative braking effect for E-REV bus according to characteristic of driving cycle

Development of Regenerative Braking Co-operative Control System for Automatic Transmission-based Hybrid Electric Vehicle using Electronic Wedge Brake

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