DETECTION CIRCUIT AND DETECTION METHOD FOR ELECTRIC CONTROL DEVICE, AND ELECTRIC CAR

Embodiments of this application relate to the technical field of electronics, and disclose an electrical control device detection circuit, a detection method, and an electric vehicle. In some embodiments of this application, the detection circuit is configured to detect a drive circuit of the electrical control device. The drive circuit includes a high-side switch unit. The detection circuit includes a first detection module and a control module. A first end of the first detection module is connected to a first end of the electrical control device. A second end of the first detection module is connected to a second end of the electrical control device. A third end of the first detection module is connected to the control module. The control module is configured to obtain a first electrical signal at the third end of the first detection module; and determine, based on the first electrical signal at the third end of the first detection module, whether a fault occurs in the drive circuit of the electrical control device. In this implementation, fault diagnosis can be performed on the drive circuit of the electrical control device.