| 48V混合动力系统跛行模式电压控制策略研究 |
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| 引用本文： | 宋浩源,郁大嵬,尹建坤,刘元治. 48V混合动力系统跛行模式电压控制策略研究[J]. 汽车文摘, 2022, 0(3): 58-62 |
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| 作者姓名： | 宋浩源 郁大嵬 尹建坤 刘元治 |
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| 作者单位： | 1.中国第一汽车股份有限公司新能源开发院130013;2.汽车振动噪声与安全控制综合技术国家重点实验室130013; |
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| 摘 要： | 对于48 V混合动力系统,当48 V电池出现严重故障时,低压蓄电池能量无法得到补充,导致车辆无法长距离行驶。阐述了48 V混合动力车辆的跛行回家模式电压控制方法,在48 V电池出现严重故障无法工作维持高压时,系统控制发动机响应驾驶请求的同时,带动电机维持高压系统的供电,并由DC/DC持续为整车12 V低压用电设备供电,能够长时间维持车辆行驶。
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| 关 键 词： | 48V 混合动力车辆 跛行 电压控制 控制策略 |
Research on Voltage Control Strategy of Limp Function for 48 V Hybrid Power System |
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| Song Haoyuan,Yu Dawei,Yin Jiankun,Liu Yuanzhi. Research on Voltage Control Strategy of Limp Function for 48 V Hybrid Power System[J]. Automotive Digest, 2022, 0(3): 58-62 |
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| Authors: | Song Haoyuan Yu Dawei Yin Jiankun Liu Yuanzhi |
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| Affiliation: | (New Energy Vehicle Development Institute,China FAW Corporation Limited,Changchun 130013;State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise&Safety Control,Changchun 130013) |
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| Abstract: | For the 48 V hybrid power system, when the 48 V battery has a serious failure, the low-voltage battery energy cannot be replenished, causing the vehicle to be unable to travel long distances. This article describes the voltage control method for the limp home function of a 48 V hybrid vehicle. When the 48 V battery fails to work and cannot maintain a high voltage, the engine is controlled to respond to the driving request while driving the motor to maintain the power supply of the high voltage system, in the meantime DC/DC continues to provide the vehicle with 12 V low voltage power to run electrical equipment, it can maintain the vehicle for a long time. |
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| Keywords: | 48 V hybrid vehicle Limp Voltage control method Control strategy |
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