Combined regenerative and mechanical braking in electric vehicle

Paredes, Marina Gabriela Sadith Pérez; Pomílio, José Antenor; Santos, Auteliano Antunes dos

doi:10.1109/cobep.2013.6785227

Cited by 5 publications

(10 citation statements)

References 8 publications

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“…Strategy IV should be most favorable, based on appropriate handling of both low-speed and high-speed non regenerative operating points; the results obtained agree with this intuition, as this strategy reduced energy consumption by 0. 3 …”

Section: Simulation Resultsmentioning

confidence: 99%

“…The applied stator voltages are determined by control according to (3) where U d and uq are duty cycle commands and V bus is the dc bus voltage. Assuming a lossless power converter, the dc bus current satisfies Since ibat = ibus, the dc bus voltage satisfies…”

Section: A Modelingmentioning

confidence: 99%

“…Design of a braking strategy involves consideration of vehicle stability [1] and kinetic energy recovery. Some studies recommend maximal use of electrical braking above a threshold speed, along with pure mechanical braking below the threshold speed [2], [3]. Other studies recommend smoothly varying the level of electrical braking throughout a braking event, from maximum level to zero level [4], [5].…”

Section: Introductionmentioning

confidence: 99%

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Vehicle braking strategies based on regenerative braking boundaries of electric machines

Murthy

Magee

Taylor

2015

2015 IEEE Transportation Electrification Conference and Expo (ITEC)

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Electric and hybrid-electric vehicles are capable of providing electrical braking to assist mechanical brakes during a braking event. Braking strategies can be formulated to dictate the manner in which the braking effort is shared between the electrical and mechanical brakes. Electrical braking capability is identified by regions in the braking quadrants of an electric machine's torque-speed plane, and these capability regions may be further subdivided into regenerative and non-regenerative braking regions. Regenerative electrical braking adds energy to the energy storage system, whereas non-regenerative electrical braking subtracts energy from the energy storage system. This paper uses the concept of regenerative braking boundaries to define braking strategies that avoid operation in non-regenerative braking regions so as to recover as much electrical energy as possible during braking events.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: A Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vehicle braking strategies based on regenerative braking boundaries of electric machines

Murthy

Magee

Taylor

2015

2015 IEEE Transportation Electrification Conference and Expo (ITEC)

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“…The energy of the vehicle and the fractional energy distribution can be obtained from (13) and is given by,…”

Section: Figure 3: Forces Acting On a Two-axle Vehicle During Brakingmentioning

confidence: 99%

“…Figure 10 shows the electric motor, which initially charges the flywheel at the appropriate angular velocity (to emulate the vehicle mass at speed) and then becomes the equivalent parallel hybrid motor regeneration system (energy recovery while the vehicle mass decelerates). Kinetic energy experimental systems were also utilised by Paredes et al 13 and Yang, 15 simply because these allow the energy storage phenomena to be recovered rather than other vehicle effects such as aerodynamics.…”

Section: Experimental Verification Of the Hybrid Braking Systemmentioning

confidence: 99%

Kinetic energy storage using a dual-braking system for an unmanned parallel hybrid electric vehicle

Suntharalingam

Economou

Knowles

2016

Proceedings of the Institution of Mechanical Engineers, Part D:

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In this paper a novel regenerative dual braking strategy is proposed for utility/goods delivery unmanned vehicles in public roads, which improves the regenerative energy capturing ability and consequently improves the fuel use of parallel hybrid power train configurations for land unmanned vehicles where the priority is not comfort but extending the range. Furthermore, the analysis takes into account the power handling ability of the electric motor and the power converters. In previous research a plethora of regenerative braking strategies is shown, for this paper the key contribution is that the vehicle electric regeneration is related to a fixed braking distance in relation to the energy storage capabilities specifically for unmanned utility type land vehicles where passenger comfort is not a concern but pedestrian safety is of critical importance. Furthermore, the vehicle's power converter capabilities facilitate the process of extending the braking time via introducing a variable deceleration profile. The proposed approach has therefore resulted in a regenerative algorithm which improves the vehicle's energy storage capability without considering comfort since this analysis is applicable to unmanned vehicles. The algorithm considers the distance as the key parameter, which is associated to safety, therefore it allows the braking time period to be extended thus favouring the electric motor generation process while sustaining safety. This method allows the vehicle to brake for longer periods rather than short bursts hence resulting in a more effective regeneration with reduced use of the dual (i.e. caliper/stepper motor brake system). The regeneration method and analysis is addressed in the following paper sections. The simulation results show that the proposed regenerative braking strategy has improved significantly the energy recapturing ability of the hybrid power train configuration. The paper is also supported with experimental data that verify the theoretical development and the simulation results. The two strategies developed and implemented are Constant Braking Torque (CBT) and Constant Braking Power (CBP). Both methods were limited to a fixed safety-based distance. Overall the results demonstrate that the CBT method results in better energybased savings.

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Comparative Strategies of Control for Regenerative Braking in Electric Vehicles

Paredes

Pomílio

2019

2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC)

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Combined regenerative and mechanical braking in electric vehicle

Cited by 5 publications

References 8 publications

Vehicle braking strategies based on regenerative braking boundaries of electric machines

Vehicle braking strategies based on regenerative braking boundaries of electric machines

Kinetic energy storage using a dual-braking system for an unmanned parallel hybrid electric vehicle

Comparative Strategies of Control for Regenerative Braking in Electric Vehicles

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