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Coordinated Control of Continuously Variable Transmission Speed Ratio in Engine Starting-Up for Hybrid Electric Vehicle
Technical Paper
2021-01-5003
ISSN: 0148-7191, e-ISSN: 2688-3627
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Automotive Technical Papers
Language:
English
Abstract
In order to improve the mode switching performance of parallel hybrid electric vehicles (PHEV) and make better use of the dynamics of the vehicle, this paper proposes a three-stage control method for the start-up mode of start-up, speed synchronization, and clutch slip based on the response characteristics of actual vehicle components and the complex working conditions of the actual road. In the speed synchronization phase, a coordinated control method of “engine speed active following + continuously variable transmission (CVT) speed ratio motor speed limiting” is proposed. The real vehicle test results show that the engine starting-up coordinated control method can significantly accelerate the speed synchronization and shorten the starting-up mode duration during the rapid acceleration, so that the vehicle’s power performance can be well played and the ride comfort can be effectively guaranteed.
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Citation
Song, D., Wang, S., Zeng, X., Gao, F. et al., "Coordinated Control of Continuously Variable Transmission Speed Ratio in Engine Starting-Up for Hybrid Electric Vehicle," SAE Technical Paper 2021-01-5003, 2021, https://doi.org/10.4271/2021-01-5003.Data Sets - Support Documents
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References
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