A development of an advanced shift control algorithm for a hybrid vehicles with automated manual transmission

Jo, Han-Sang; Park, Yeong-il; Lee, Jang-Moo; Lee, Hyeoun-Dong; Sul, Seung-Ki

doi:10.1504/ijhvs.2000.005258

Cited by 15 publications

(7 citation statements)

References 5 publications

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“…State feedback control and sliding mode control are important control methods for designing dynamic coordination control strategies. 1 However, existing studies on dynamic coordination control strategies mainly focus on gear shift control of parallel hybrid power systems, and usually adopt PID control 2 and feedback control 3 to control motor torque 4,5 or engine speed. 6 Kimura et al 7 first proposed a dynamic coordination control strategy for power-splitting hybrid vehicles.…”

Section: Introductionmentioning

confidence: 99%

Research on real-time control strategy of multi-power flow of dual-mode power-split hybrid electric vehicle

Liu

Li²,

Han

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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With the continuous development of hybrid vehicle control technology, great progress has been made in the research of multi-power flow collaborative control. Due to the internal delay link of each power component, the role of energy storage element, and the limitation of electric power in the whole system, the inevitable delay characteristic of state transfer is caused. Therefore, the speed of multi-power flow control torque coordinated response of hybrid vehicles needs to be improved. The dual-mode power-split hybrid electric vehicle (DMPS-HEV) overall structure and working modes are analyzed, by adopting the combination of theory and experiment method. In order to solve the problem that the power components of dual-mode power-split hybrid electric vehicle cannot follow the optimal control command of the upper energy management strategy quickly due to the engine response delay, thus affecting the control effect of the upper energy management strategy. The research on torque coordination control strategy is carried out, the reference model of electromechanical composite drive is established, and the model reference adaptive coordination control strategy based on Lyapunov stability theory is proposed. The results show that the proposed model reference adaptive torque coordinated control strategy significantly improves the effect of engine response delay on the optimization effect of energy management strategy, and can achieve the control effect of the optimal control strategy of 93.58%. The test platform of the dual-mode power-split hybrid electric vehicle was built. The control system was built based on the rapid control prototype, and the data acquisition system was built based on the NI data acquisition module. The coordinated control strategy of the dual-mode power-split hybrid electric vehicle power system proposed in this paper was verified through the bench test to significantly improve the vehicle fuel economy and the real-time performance of the control strategy, which has a good practical value

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Section: Introductionmentioning

confidence: 99%

Research on real-time control strategy of multi-power flow of dual-mode power-split hybrid electric vehicle

Liu

Li²,

Han

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

show abstract

“…The current research is mainly focused on the coordinated control of torque related to the switching modes and gear shifting process for stages 1-4.Related research work can be found in [1][2][3][4][5][6][7][8]. To the best of our knowledge, this is the first report that mainly takes into consideration the torque recovery process (see stage 5) after gearshift.…”

Section: Introductionmentioning

confidence: 99%

The Coordinate Control Strategy of Torque Recovery for the Parallel Hybrid Electric Vehicle

Zhang

Jiang

et al. 2015

Asian Journal of Control

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In this paper, a coordinated torque recovery strategy is presented and a robust control technique applied to motor torque control. It is well known that the torque recovery process influences vehicle power performance and driving comfort. In the torque recovery process, it is difficult to recover to the target torque as engine torque response is limited by emissions or the control algorithm in an Engine Control Unit (ECU), which results in poor vehicle power performance. To solve this problem and taking the different torque characteristics between the engine and the motor into consideration in the dynamic coupling process, a new coordination torque recovery control strategy based on the motor torque compensation for improving the vehicle performance is proposed. The engine torque is dynamically compensated by motor torque to improve power performance. In order to achieve better performance, a new control law, which employs the integral of the tracking error and state feedback, is described for the torque control of motors. The controller was designed by a linear matrix inequality (LMI)‐based optimization to obtain an optimal gain. The simulation results illustrate the effectiveness and robustness of the controller. Finally, the torque recovery control strategy is compared to methods that do not use motor torque compensation. The comparative test results demonstrate that the proposed torque recovery control strategy improves the power of the vehicle effectively, reduces shift shock, and ensures comfort.

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“…For reducing the power interruption time, Baraszu and Cikanek [8] proposed that the vehicles should be directly driven by motor during the gear shifting process in parallel HEVs equipped with AMT. Jo et al [9] and Liao et al [10] introduced a control strategy which controlled the torques and speeds of the engine and motor to reduce the synchronizing torque of AMTs' synchronizer and clutch. So far few literatures on the gear shifting control strategies without disengaging the clutch for HEVs equipped with AMT have been reported [5,11,12].…”

Section: Introductionmentioning

confidence: 99%

Shifting Control Algorithm for a Single-Axle Parallel Plug-In Hybrid Electric Bus Equipped with EMT

Yang

2014

Discrete Dynamics in Nature and Society

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Combining the characteristics of motor with fast response speed, an electric-drive automated mechanical transmission (EMT) is proposed as a novel type of transmission in this paper. Replacing the friction synchronization shifting of automated manual transmission (AMT) in HEVs, the EMT can achieve active synchronization of speed shifting. The dynamic model of a single-axle parallel PHEV equipped with the EMT is built up, and the dynamic properties of the gearshift process are also described. In addition, the control algorithm is developed to improve the shifting quality of the PHEV equipped with the EMT in all its evaluation indexes. The key techniques of changing the driving force gradient in preshifting and shifting compensation phases as well as of predicting the meshing speed in the gear meshing phase are also proposed. Results of simulation, bench test, and real road test demonstrate that the proposed control algorithm can reduce the gearshift jerk and the power interruption time noticeably.

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A development of an advanced shift control algorithm for a hybrid vehicles with automated manual transmission

Cited by 15 publications

References 5 publications

Research on real-time control strategy of multi-power flow of dual-mode power-split hybrid electric vehicle

Research on real-time control strategy of multi-power flow of dual-mode power-split hybrid electric vehicle

The Coordinate Control Strategy of Torque Recovery for the Parallel Hybrid Electric Vehicle

Shifting Control Algorithm for a Single-Axle Parallel Plug-In Hybrid Electric Bus Equipped with EMT

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