The high-voltage PTC heating control system suitable for the pure electric vehicle comprises a high-voltage control area and a low-voltage control area which are electrically separated, and the high-voltage control area comprises a power module, a plurality of PTC heating branches connected in parallel, an IGBT driving module, a processor module and a temperature measuring module; the low-voltage control area comprises a power supply module, a processor module and a communication module, and when the high-voltage control area and the whole vehicle system generate communication requirements, communication content is firstly sent to the processor module of the low-voltage control area through the digital isolator and then sent to the whole vehicle system through the communication module by the low-voltage control area. A low-voltage battery of a new energy automobile is used as power supply input of a low-voltage end digital part and supplies power to a high-voltage control area digital part after a series of isolation power supply conversion, so that high voltage and low voltage of the whole controller are mutually isolated, the low-voltage end is not affected when a high-voltage fault occurs, effective alarm feedback can be realized, and the reliability of the controller is improved. The system reliability is improved.
本发明公开了一种适用于纯电动汽车的高压PTC加热控制系统,包括电气分离的高压控制区域和低压控制区域,高压控制区域包括电源模块、多路并联的PTC加热支路、IGBT驱动模块、处理器模块和测温模块;低压控制区域包括电源模块、处理器模块、通讯模块,所述高压控制区域与整车系统产生通讯需求时,首先将通讯内容通过数字隔离器发送至低压控制区域处理器模块,再由低压控制区域经由通讯模块发送至整车系统,本发明采用新能源汽车低压电池作为低压端数字部分供电输入,并经过一系列隔离电源转换后为高压控制区域数字部分供电,使得整个控制器高压和低压相互隔离,保证高压故障发生时低压端不受影响,可以有效报警反馈,提升系统可靠性。
High-voltage PTC (Positive Temperature Coefficient) heating control system suitable for pure electric vehicle
一种适用于纯电动汽车的高压PTC加热控制系统
09.01.2024
Patent
Elektronische Ressource
Chinesisch
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