ELECTRICAL CONTROL DEVICE DETECTION CIRCUIT, DETECTION METHOD, AND ELECTRIC VEHICLE

This application discloses an electrical control device detection circuit, a detection method, and an electric vehicle. The detection circuit includes a drive circuit configured to detect an electrical control device. The drive circuit includes a drive power module, a high-side switch unit, and a low-side switch unit. The detection circuit includes: a detection power module, a first switch module, a second switch module, a first detection module, a second detection module, and a control module. The control module is configured to obtain an electrical signal at a third end of the first detection module and/or an electrical signal at a second end of the second detection module; and determine, based on the electrical signal at the third end of the first detection module and/or the electrical signal at the second end of the second detection module, whether a fault occurs in the drive circuit of the electrical control device.