Portable detection device for overall vehicle controller of electric vehicle and detection method thereof

The invention discloses a portable detection device for an overall vehicle controller of an electric vehicle. The portable detection device comprises a PC machine connected with a detector; the detection is connected with a power supply module, a detection micro-control unit is arranged inside the detector and is connected with a signal acquisition unit, a digital signal output unit, an analog signal output unit, and a PWM signal output unit. Besides, the detector is also provided with a connection plug-in unit for convenient detection connection. The signal acquisition unit, the digital signal output unit, the analog signal output unit, and the PWM signal output unit are connected to the inner end of the connection plug-in unit respectively; the outer end of the connection plug-in unit isconnected to a tested overall vehicle controller detachably; and the tested overall vehicle controller is connected with a power supply module. In addition, the invention also discloses a detection method of the device. Acco