Electrical control device detection circuit, detection method, and electric vehicle

An electrical control device detection circuit, wherein the detection circuit is configured to detect a drive circuit of an electrical control device, the drive circuit of the electrical control device comprises a drive power module and a high-side switch unit, the drive power module is connected to a first end of the electrical control device by the high-side switch unit, and a second end of the electrical control device is grounded;

• the detection circuit comprises a first detection module and a control module;
• a first end of the first detection module is connected to the first end of the electrical control device, and a second end of the first detection module is connected to the second end of the electrical control device, and a third end of the first detection module is connected to the control module;
• and
• 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.