Fast and Smooth Clutch Engagement Control for a Mechanical Hybrid Powertrain

Berkel, Koos van; Veldpaus, F.E.; Hofman, Théo; Vroemen, BG Bas; Steinbuch, M Maarten

doi:10.1109/tcst.2013.2279935

Cited by 41 publications

(15 citation statements)

References 19 publications

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“…Therefore, some works try to make use of the driving motor to start the engine. It was verified by Song et al [14] that the motor control without an ISG provided performance similar to the ISG control during the EV-HEV mode change transition. A study by Berkel et al [15] contributed with a new controller to achieve a fast and smooth engagement of transmission clutch (Ct) when solely the flywheel system was used to launch or brake the vehicle, while lacking the control of engine and motor in such a CVT P2 HEVs system.…”

Section: Introductionmentioning

confidence: 79%

Coordinated Engine-Start Control of Single-Motor P2 Hybrid Electric Vehicles with Respect to Different Driving Situations

Jordan

et al. 2018

Energies

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Abstract:To cut down the costs caused by the additional starter, single-motor P2 hybrid electric vehicles (HEVs) make use of the driving motor to propel the vehicle as well as start the engine, and accordingly the engine-start control becomes more difficult. To satisfy the passengers' demands, this paper developed different coordinated engine-start control strategies with respect to different situations. First, a detailed model for the single-motor P2 HEVs system was built and related parameters were presented. Then, the coordinated engine-start control architecture for the internal combustion engine (ICE), engine disconnect clutch (EDC), electric motor (EM) and 8-speed automatic transmission (AT) was analyzed. Considering with the different driving situations, soft start strategy and dynamical start strategy are individually proposed. Through the simulation, the above control strategies were validated in accordance with their control objectives. Last, to optimize the trade-off between driving performance and riding comfort, some key parameters were further discussed. This work not only decreases the difficulty of engine-start control in the single-motor P2 HEVs but also is helpful to improve the quality of engine-start.

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Section: Introductionmentioning

confidence: 79%

Coordinated Engine-Start Control of Single-Motor P2 Hybrid Electric Vehicles with Respect to Different Driving Situations

Jordan

et al. 2018

Energies

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“…The use of clutches to achieve smooth and controlled power transfer in flywheel systems has been demonstrated by van Berkel et al [31]. The current research describes two geared transmission architectures that achieve the continuous variation in speed ratio required for flywheel systems.…”

Section: Mechanical Flywheel Systemsmentioning

confidence: 95%

Optimisation of flywheel energy storage systems with geared transmission for hybrid vehicles

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Smith

Pullen

2015

Mechanism and Machine Theory

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Flywheel energy storage devices may be coupled to mechanical transmissions for braking energy recovery and the provision of additional power for acceleration in hybrid vehicles. Power transmission across a continuous range of speed ratios is necessary. The flywheel size and depth-ofdischarge must be chosen for a particular application, and this has a direct effect on transmission efficiency, required gearing ratios and mass of components. Optimisation of these parameters requires a fundamental understanding of this interaction, which has not previously been investigated and reported. To address this, the current paper presents a new method of analysing mechanical flywheel systems. A simple algebraic analysis can be used to specify flywheel system parameters for any regenerative braking application where the flywheel is used to provide initial acceleration of the vehicle from stationary. This has been applied to systems using geared transmissions with continuous speed variation achieved through sliding contact in clutch and brake components. The results of the analysis highlight how the optimum selection of flywheel depth-of-discharge must achieve a balance between high transmission efficiency and low system mass. This is illustrated for a passenger car application, allowing a full assessment of system performance and the specification of appropriate design parameters.

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“…A fast and smooth clutch engagement control for mechanical hybrid power train is discussed in [4], and optimal controller for startup of AMT trucks is presented in [5]. Both of them focus on reducing shock intensity and improving the driving comfort of vehicle.…”

Section: Value Of Clutch Mechanism In Power Trainmentioning

confidence: 99%

Starting assistance device for directly-driven electric vehicle with variable-idle speed control

Xiong

2017

Teh. vjesn.

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Pomoćni uređaj za pokretanje direktno pogonjenog električnog vozila s regulatorom brzine praznog hoda motora STARTING ASSISTANCE DEVICE FOR DIRECTLY-DRIVEN ELECTRIC VEHICLE WITH VARIABLE-IDLE SPEED CONTROL Ping Xiong, Chenglin GuOriginal scientific paper By introducing a novel permanent magnetic bi-stable electromagnetic clutch unit (PMBECU) in the driveline of directly-driven electric vehicle, a flexible connection between motor and hub is realized with characteristic of separated starting process of drive motor and wheel load. Firstly, the working principle and power supply scheme for the PMBECU is discussed. Then the assembly for the wheel-drive system with starting assistance device by the clutch is investigated. Considering the good dynamic performance of wheel motor, variable-idle speed scheme is presented and the simplified model for fast clutch engagement is built and analyzed. Finally, the proposed method for directly-driven electric vehicle launch is performed on the test rig. The experimental results indicate the shock intensity and electromagnetic impulsion during the starting process is decreased effectively by clutch-coupling startup, which results in good driving comfort and less heat in armature winding of drive motor. Keywords: clutch unit; directly-driven electric vehicle; driving comfort; starting assistance; variable-idle speed control Pomoćni uređaj za pokretanje direktno pogonjenog električnog vozila s regulatorom brzine praznog hoda motoraIzvorni znanstveni članak Uvođenjem nove trajne magnetski bi-stabilne elektromagnetske spojke (PMBECU) u transmisiju direktno pogonjenog električnog vozila, ostvarena je fleksibilna veza između motora i glavine karakteristična po odvojenom pokretanju pogonskog motora i osovinskog opterećenja. Najprije se raspravlja o načinu rada i shemi dovoda energije za PMBECU. Zatim se istražuje sklop za sustav pogona kotača s uređajem za pokretanje pomoću spojke. Razmatrajući dobre dinamičke karakteristike motora kotača, daje se shema promjenljivog praznog hoda te se gradi i analizira pojednostavljeni model za brzo ukapčanje spojke. Konačno se predložena metoda za pokretanje direktno pogonjenog električnog vozila primijenjuje na uređaju za ispitivanje. Eksperimentalni rezultati pokazuju da su jačina udara i elektromagnetski impuls tijekom pokretanja efikasno smanjeni pokretanjem zupčaste spojke, što rezultira udobnošću u vožnji i manjim zagrijavanjem namotaja armature pogonskog motora.Ključne riječi: direktno-pogonjeno električno vozilo; pomoć kod pokretanja; regulator brzine praznog hoda; sklop spojke; udobnost u vožnji

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Fast and Smooth Clutch Engagement Control for a Mechanical Hybrid Powertrain

Cited by 41 publications

References 19 publications

Coordinated Engine-Start Control of Single-Motor P2 Hybrid Electric Vehicles with Respect to Different Driving Situations

Coordinated Engine-Start Control of Single-Motor P2 Hybrid Electric Vehicles with Respect to Different Driving Situations

Optimisation of flywheel energy storage systems with geared transmission for hybrid vehicles

Starting assistance device for directly-driven electric vehicle with variable-idle speed control

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