Design of the Surge Control Method for the Electric Vehicle Powertrain

Moriya, Kyoji; Ito, Yoshiaki; Inaguma, Y.; Sato, Eiji

doi:10.4271/2002-01-1935

Cited by 23 publications

(13 citation statements)

References 1 publication

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“…When can be neglected and the currents are constant, using (2) and (3), the currents and are described by (4)-(6) (4)…”

Section: Relationship Between the Torque And The Voltagementioning

confidence: 99%

“…The voltages , and can be transformed into the voltages and which are the voltages in the directand quadrature-axes rotor reference frame (2) are the direct-and quadrature-axes inductances of a stator winding, is the resistance of a stator winding, is the permanent-magnet flux , and . The voltage equation of an interior permanent-magnet synchronous motor is given as follows:…”

Section: Relationship Between the Torque And The Voltagementioning

confidence: 99%

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Development and Testing of the Torque Control for the Permanent-Magnet Synchronous Motor

Nakai

Ohtani

Satoh

et al. 2005

IEEE Trans. Ind. Electron.

130

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Hybrid electrical vehicles and electrical vehicles are being actively developed. A hybrid electric vehicle motor design requires high efficiency, high power/weight ratio, and reliability from low rotor speed to high rotor speed. The permanent-magnet synchronous motor is used in order to fulfill these requirements. The purpose of this paper is to develop a permanent-magnet synchronous motor control method for all rotor speeds. This method increases the torque and the efficiency at high speed when compared to the ordinary current error feedback method. A method composed of two compensators is proposed to achieve this objective. One of the compensators controls the torque using the voltage phases. The other one is the ordinary current error feedback. Several correcting methods for the voltage phase compensator have been proposed for the compensator for many control demands. The validity of the proposed method was confirmed using simulation and experimental evaluations.

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“…When can be neglected and the currents are constant, using (2) and (3), the currents and are described by (4)-(6) (4)…”

Section: Relationship Between the Torque And The Voltagementioning

confidence: 99%

Section: Relationship Between the Torque And The Voltagementioning

confidence: 99%

Development and Testing of the Torque Control for the Permanent-Magnet Synchronous Motor

Nakai

Ohtani

Satoh

et al. 2005

IEEE Trans. Ind. Electron.

130

View full text Add to dashboard Cite

show abstract

“…The abovementioned studies mostly focused on the parallel hybrid system, which consists of a single motor only besides the engine, and mainly used the PID and feedback control methodology to overcome vehicle jerk [14]. As for power-split hybrid electric systems, which comprise dual motors and an engine, jerk is considerably more pronounced because the three power sources are highly coupled and their dynamic response characteristics are diverse [15]. Applying coordination control strategies to prevent jerk in power-split HEVs is common [16].…”

Section: Introductionmentioning

confidence: 99%

Jerk Analysis of a Power-Split Hybrid Electric Vehicle Based on a Data-Driven Vehicle Dynamics Model

et al. 2018

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Given its highly coupled multi-power sources with diverse dynamic response characteristics, the mode transition process of a power-split Hybrid Electric Vehicle (HEV) can easily lead to unanticipated passenger-felt jerks. Moreover, difficulties in parameter estimation, especially power-source dynamic torque estimation, result in new challenges for jerk reduction. These two aspects entangle with each other and constitute a complicated coupling problem which obstructs the realization of a valid anti-jerk method. In this study, a vehicle dynamics model with reference to a data-driven modeling method is first established, integrating a full-time artificial neural network engine dynamic model that can accurately predict engine dynamic torque. Then the essential reason for the occurrence of vehicle jerks in real driving conditions is analyzed. Finally, to smooth the mode transition process, a more practical anti-jerk strategy based on power-source torque changing rate limitation (TCRL) is proposed. Verification studies indicate that the data-driven vehicle dynamics model has enough accuracy to reflect the vehicle dynamic characteristics, and the proposed TCRL strategy could reduce the vehicle jerk by up to 85.8%, without any sacrifice of vehicle performance. This research provides a feasible method for precise modeling of vehicle dynamics and a reference for improving the riding comfort of hybrid electric vehicles.

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“…Based on the above problems, the domestic and foreign scholars have carried out systematic studies, but mainly using the rapid response characteristics of the motor to complete the torque compensation during power switching. The Toyota Corporation's THS uses a power coupling device with a planetary gear, which can obtain the engine output torque by means of the motor output torque in proportion; the compensation torque of the motor is determined by the difference before and after power switching, so THS can eliminate the torque ripple during this process [3,4]. Davis and Lorenz took ISG hybrid electric vehicle as research object; they established an engine torque observer for realtime calculation of the engine torque ripple.…”

Section: Introductionmentioning

confidence: 99%

Study on Power Switching Process of a Hybrid Electric Vehicle with In-Wheel Motors

Wang

Ren

et al. 2016

Mathematical Problems in Engineering

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Hybrid electric vehicles with in-wheel motors (IWM) achieve a variety of driving modes by two power sources—the engine and the IWM. One of the critical problems that exists in such vehicle is the different transient characteristics between the engine and the IWM. Therefore, switching processes between the power sources have noteworthy impacts on vehicle dynamics and driving performance. For the particular switching process of the pure electric mode to the engine driving mode, a specific control strategy coordinating clutch torque, motor torque, and engine torque was proposed to solve drivability issues caused by inconsistent responses of different power sources during the mode transition. The specific switching process could be described as follows: the engine was started by IWM with the clutch serving as a key enabling actuator, dynamic torque compensation through IWM was implemented after engine started, and, meanwhile, engine speed was controlled to track the target speed through the closed loop PID control strategy. The bench tests results showed that the vehicle jerk caused during mode switching was reduced and fast and smooth mode switching was realized, which leads to the improvement of vehicle’s riding comfort.

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Design of the Surge Control Method for the Electric Vehicle Powertrain

Cited by 23 publications

References 1 publication

Development and Testing of the Torque Control for the Permanent-Magnet Synchronous Motor

Development and Testing of the Torque Control for the Permanent-Magnet Synchronous Motor

Jerk Analysis of a Power-Split Hybrid Electric Vehicle Based on a Data-Driven Vehicle Dynamics Model

Study on Power Switching Process of a Hybrid Electric Vehicle with In-Wheel Motors

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