Development of the Shaking Vibration Control for Electric Vehicles

Karikomi, Takaaki; Itou, Ken; Okubo, Takahito; Fujimoto, Shinsaku

doi:10.1109/sice.2006.315138

Cited by 35 publications

(32 citation statements)

References 2 publications

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“…The parameters of the low-pass filter such as the cut-off frequency and the order are determined according to the high-frequency noise appearing on the measured currents with the trial and error method. The low-pass filter can eliminate high-frequency components except for DC component, as shown in Equation (19). Thus, the amplitude of the cosine component of I n is obtained.…”

Section: Harmonic Component Estimation Methodsmentioning

confidence: 99%

“…The oscillation controller is a third-order linear controller and outputs a damping torque depending on the estimated torque provided by the observer. According to [19], the transient torsional vibration is caused by the quick change of the traction torque, which is especially more severe in an EV than an Internal Combustion Engine (ICE) vehicle, for electric motors have fast torque response. In [20,21], the shaking vibration resulted from the motor torque is suppressed with a feed-forward compensator, and the shaking vibration resulted from the disturbances during vehicle driving such as gear backlash is suppressed with a feedback compensator.…”

Section: Introductionmentioning

confidence: 99%

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Compensation for Inverter Nonlinearity in Permanent Magnet Synchronous Motor Drive and Effect on Torsional Vibration of Electric Vehicle Driveline

Wang

2018

Energies

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Permanent magnet synchronous motors (PMSMs) with inverters are widely used in electric vehicles (EVs). However, current harmonics caused by the nonlinearity of the inverter generate torque ripples and give rise to torsional vibration in the vehicle driveline. This paper proposes a new compensation method to suppress the torque ripples. This method extracts the 6th-order harmonic component online from the d-axis and q-axis currents with the approximate Fourier transform, and adopts a harmonic current PI regulator to calculate compensation voltage, which is added to the voltage reference to compensate the nonlinearity of the inverter. After correcting the current distortion and improving the motor torque smoothness, the torsional vibration of the driveline caused by the motor pulsating torque is reduced. According to the simulation results, the 6th-order of motor torque ripple and the torsional vibration response is reduced about 26–28%, which confirms the validity of the proposed strategy. The proposed method does not need any additional hardware and can be implemented broadly in PMSM drives.

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Section: Harmonic Component Estimation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compensation for Inverter Nonlinearity in Permanent Magnet Synchronous Motor Drive and Effect on Torsional Vibration of Electric Vehicle Driveline

Wang

2018

Energies

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“…This controller was used in the first-series production Nissan Leaf. References [9] and [41] present the controller and its tuning for tip-in maneuvers only. The control structure ( Fig.…”

Section: Disturbance Observer Controllermentioning

confidence: 99%

Comparison of Anti-Jerk Controllers for Electric Vehicles With On-Board Motors

Scamarcio

Metzler

Gruber

et al. 2020

IEEE Trans. Veh. Technol.

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Anti-jerk controllers actively suppress the torsional oscillations of automotive drivetrains, caused by abrupt variations of the traction torque. The main benefits are: i) enhanced passengers' comfort; and ii) increased component life. Extensive literature deals with the design of anti-jerk controllers for electric powertrains with on-board motors, i.e., in which the electric motor is part of the sprung mass of the vehicle, and transmits torque to the wheels through a transmission, half-shafts and constant velocity joints. Nevertheless, a complete and structured comparison of the performance of the different control options is still missing. This study addresses the gap through the assessment of six anti-jerk controllersfive exemplary formulations from the literature, and one novel formulation based on explicit nonlinear model predictive control (eNMPC). All proposed control structures have the potential to be implemented on production vehicles. A set of objective performance indicators is defined to assess the controllers, which are tuned through an optimizationbased routine. Results show that the wheel speed input is critical to enhance controller performance, but may lead to reduced robustness.

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“…Active damping approach using a control strategy that can be implemented as software is more preferable than passive ones most of which need extra hardware to dampen oscillations. Several methods and configurations to minimize the oscillation have been studied [2][3][4]. Some of them introduce certain notch filter to attenuate the resonant poles by cancelling the resonant poles of the system transfer function to produce poles that are located in a more well-damped position in the s- plane left part.…”

Section: Introductionmentioning

confidence: 99%

Study on Active Suppression Control of Drivetrain Oscillations in an Electric Vehicle

Huang

Cui

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Due to the low damping in a central driven electric vehicle and lack of passive damping mechanisms as compared with a conventional vehicle, the vehicle may endure torsional vibrations which may deteriorates the vehicle's drivability. Thus active damping control strategy is required to reduce the undesirable oscillations in an EV. In this paper, the origin of the vibration and the design of a damping control method to suppress such oscillations to improve the drivability of an EV are studied. The traction motor torque that is given by the vehicle controller is adjusted according to the acceleration rate of the motor speed to attenuate the resonant frequency. Simulations and experiments are performed to validate the system. The results show that the proposed control system can effectively suppress oscillations and hence improve drivability.

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Development of the Shaking Vibration Control for Electric Vehicles

Cited by 35 publications

References 2 publications

Compensation for Inverter Nonlinearity in Permanent Magnet Synchronous Motor Drive and Effect on Torsional Vibration of Electric Vehicle Driveline

Compensation for Inverter Nonlinearity in Permanent Magnet Synchronous Motor Drive and Effect on Torsional Vibration of Electric Vehicle Driveline

Comparison of Anti-Jerk Controllers for Electric Vehicles With On-Board Motors

Study on Active Suppression Control of Drivetrain Oscillations in an Electric Vehicle

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