Vehicular power supply switch device

• Main Authors: ZHANG HANGQI, CAI YUNWEN, YE ZHICONG, TANG YIMING, CHEN RUTAO
• Format: Patent
• Language: Chinese; English
• Published: 05.10.2016
• Subjects: PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

The invention discloses a vehicular power supply switch device, comprising a vehicular power supply, a transformer module, a MCU (microcontroller unit) processor, a voltage sampling module, a delay module, a first switch module and a second switch module; output of the vehicular power supply is connected to a voltage sampling input end of the MCU processor through the voltage sampling module and is connected to a power input end of the MCU processor through the transformer module; output of the vehicular power supply is also connected to an enable end of the transformer module sequentially through the delay module and the second switch module, a control signal output end of the MCU processor is connected to the delay module through the first switch module, and the MCU processor judges whether the vehicular power supply is undervoltage and turns off the transfer module sequentially through the first switch module, the delay module and the second switch module upon undervoltage. The MCU processor connected with