The invention provides a timely four-wheel drive mode speed ratio verification system. The system comprises a signal input module, a four-wheel drive mode speed ratio calculation module, a fault confirmation module and a fault processing module. The signal input module is used for collecting an input shaft rotating speed signal, an output shaft rotating speed signal, a wheel speed rotating speed signal and a four-wheel drive mode signal; the four-wheel-drive mode speed ratio calculation module divides a wheel speed rotating speed signal by an output shaft rotating speed signal to obtain a four-wheel-drive module speed ratio i3, and judges whether the four-wheel-drive module speed ratio i3 is invalid or not according to a preset verification rule; the fault confirmation module is used for sending and storing fault code information after receiving a four-wheel drive mode speed ratio invalid signal; the fault processing module is used for receiving a four-wheel drive mode speed ratio invalid signal and executing a preset execution rule, and the preset execution rule comprises that after a time threshold value is exceeded, if the speed ratio invalid signal still exists, the two-wheel drive mode or the four-wheel drive mode is determined to be executed according to i3.
本发明提供了一种适时四驱模式速比校验系统,其中系统包括信号输入模块、四驱模式速比计算模块、故障确认模块、故障处理模块;所述信号输入模块用于采集输入轴转速信号、输出轴转速信号、轮速转速信号、四驱模式信号;所述四驱模式速比计算模块将轮速转速信号与输出轴转速信号相除得到四驱模块速比i3,并依据预设校验规则判断所述四驱模块速比i3是否无效;所述故障确认模块用于在收到四驱模式速比无效信号后,发送并存储故障码信息;所述故障处理模块用于收到四驱模式速比无效信号,执行预设执行规则,所述预设执行规则包括:超过时间阈值后,速比无效信号若依然存在,则根据i3决定执行两驱模式或四驱模式。
Timely four-wheel drive mode speed ratio checking system and method
一种适时四驱模式速比校验系统及方法
2024-11-15
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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