A New Energy Management System of Directly-Driven Electric Vehicle with Electronic Gearshift and Regenerative Braking

Yang, Yee‐Pien; Hu, Tsung-Hsien

doi:10.1109/acc.2007.4282781

Cited by 20 publications

(12 citation statements)

References 9 publications

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“…Variables such as hills, air resistance, temperatures, road surfaces, various traffic conditions and driving patterns will all influence performance, efficiency and energy consumption of a vehicle [24,33,34]. A study conducted by the University of [35].…”

Section: Ev Testing and Drive Cyclesmentioning

confidence: 99%

“…The options for recharging EVs at present are limited to homes, some workplaces and a few official charging stations. Therefore, it is imperative that EV driving ranges are optimised, the cars are efficiently designed and the car is driven in an energy-efficient manner [24]. Nonetheless, many EV enthusiasts have not waited for buy-in from major car manufactures or widely available charging infrastructure [3].…”

Section: Introductionmentioning

confidence: 99%

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Testing energy efficiency and driving range of electric vehicles in relation to gear selection

et al. 2014

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Electric vehicles (EVs) have the potential to be operated using a clean, renewable energy source. However, a major limitation is their relatively short vehicle driving range and the associated driver 'range anxiety'. This research investigates the effect of gearing on energy consumption and driving range efficiency on an EV-converted Ford Focus using a chassis dynamometer in a controlled test environment in accordance with international standards.Two designs of the Ford Focus were used in the tests; one with an automatic gear drive, and the other with a manual gear drive. The electricity consumption of the two cars driving under different gearing configurations was measured under identical drive cycles. The vehicle range tests showed that measuring energy consumption on just two consecutive drive cycles on a calibrated chassis dynamometer will lead to a small overestimation of the energy consumption due to a 'cold' drive train. The results also suggest greater attention needs to be paid to EV battery charger efficiency, particularly in terms of standby energy consumption, which can increase the total energy required for EV owners markedly.

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Section: Ev Testing and Drive Cyclesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Testing energy efficiency and driving range of electric vehicles in relation to gear selection

et al. 2014

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“…(5) Using of ultracapacitance with experimental characteristics for the regulating voltage and providing the inrush current to improve the driving torque of motor [8]. (6) Used in the train on the automatic driving and braking to energy recycle to DC/AC power system [9,10]. Design and implementing considerations of a novel rapid charger for lead-acid batteries are using a single-stage power converter with an energy recovery cell [11].…”

Section: Introductionmentioning

confidence: 99%

Research on energy recycle percentage of servo motor

et al. 2017

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Abstract. The energy recycle circuit fed back the energy to batteries is one of the important means to extend the travel distance of action vehicle for an electric vehicle or hybrid vehicle by driven batteries. In order to achieve energy recycle must be use, such as the motor characteristics, the principle of motor controller and design of circuit to reach the energy recycle of motor in action vehicles. Focus on the 24V 8A 150W servo motor and its shaft coupling with a condition by magnetic brake to simulate as the analog load and adjust the brake to 0.2 Newton-meter. According to the characteristics of the motor, the principle of the motor controller and the design and energy recovery of the circuit system for discussion, that include drive control circuit of motor and based on the former to design the circuit of energy recycle circuit of motor and to feed back the energy to the driving batteries. According to the characteristics of the motor, the principle of the motor controller and the design and energy recovery of the circuit system for discussion, that include drive control circuit of motor and based on the former to design the circuit of energy recycle circuit of motor and to feed back the energy to the driving batteries. By mean of the architecture of energy recycle circuit to test the power recovery which divide into without load and without energy collector, without load and with energy collector, with load and without energy collector and with load and energy collector four cases under these conditions to investigate the power recovery analysis. For the statistics of energy, the average energy recovery power percentage by without load and without energy collector is 9.7%, the average energy recovery power percentage by without load and with energy collector is 20.5%, the average energy recovery power percentage by with load and without energy collector is 1.82%, and the average energy recovery power percentage by with load and with energy collector is 3.1%.

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“…All power is transferred by wire which gives further benefits in terms of the space saving and the flexibility of the component arrangement and also lowers the centre of gravity. 26,31,32 In published literature 33 demonstrating the use of a wheel motor on a motorcycle, it has been shown that, with a wheel motor and using regenerative braking, the overall efficiency can be increased by 20%.…”

Section: 25mentioning

confidence: 99%

Multi-objective optimisation for battery electric vehicle powertrain topologies

Othaganont

Assadian

Auger

2016

Proceedings of the Institution of Mechanical Engineers, Part D:

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Electric vehicles are becoming more popular in the market. To be competitive, manufacturers need to produce vehicles with a low energy consumption, a good range and an acceptable driving performance. These are dependent on the choice of components and the topology in which they are used. In a conventional gasoline vehicle, the powertrain topology is constrained to a few well-understood layouts; these typically consist of a single engine driving one axle or both axles through a multi-ratio gearbox. With electric vehicles, there is more flexibility, and the design space is relatively unexplored. In this paper, we evaluate several different topologies as follows: a traditional topology using a single electric motor driving a single axle with a fixed gear ratio; a topology using separate motors for the front axle and the rear axle, each with its own fixed gear ratio; a topology using in-wheel motors on a single axle; a four-wheel-drive topology using in-wheel motors on both axes. Multi-objective optimisation techniques are used to find the optimal component sizing for a given requirement set and to investigate the trade-offs between the energy consumption, the powertrain cost and the acceleration performance. The paper concludes with a discussion of the relative merits of the different topologies and their applicability to real-world passenger cars.

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A New Energy Management System of Directly-Driven Electric Vehicle with Electronic Gearshift and Regenerative Braking

Cited by 20 publications

References 9 publications

Testing energy efficiency and driving range of electric vehicles in relation to gear selection

Testing energy efficiency and driving range of electric vehicles in relation to gear selection

Research on energy recycle percentage of servo motor

Multi-objective optimisation for battery electric vehicle powertrain topologies

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