Abstract: A body part for a motor vehicle with a positioning structure is provided. The body part includes an outer panel and an inner panel, and a backside of the outer panel is provided with a positioning structure to position the outer panel relative to the inner panel for their assembly, the positioning structure including a clamping seat configured to receive a shaft of a rack for positioning the outer panel thereon during manufacturing of the outer panel, and to be engaged in an opening of the inner panel to position the outer panel relative to the inner panel. The positioning structure combines the arrangements of both positioning holes and positioning ribs, thereby greatly enhancing the eligibility rate of spray painting and welding stability.

Abstract: An ANPC inverter, a zero-crossing switching method and a zero-crossing switching apparatus of the ANPC inverter are provided. The method includes: controlling switch states of switch devices in a bridge leg to change according to a preset logic when zero-crossing switching occurs in an output voltage instruction of the bridge leg, so as to prevent overvoltage in the switch device in the bridge leg. The preset logic includes switching among a sequence of switch state combinations. Switch state combinations of the switch devices before and after the zero-crossing switching occurs are defined as the first and second switch state combinations of the sequence. The second to the penultimate switch state combinations are all safe switch state combinations selected in advance, in each of which a maximum voltage borne by the switch devices in the bridge leg is clamped to a safe limit value.

Abstract: A body part for a motor vehicle with a positioning structure is provided. The body part includes an outer panel and an inner panel, and a backside of the outer panel is provided with a positioning structure to position the outer panel relative to the inner panel for their assembly, the positioning structure including a clamping seat configured to receive a shaft of a rack for positioning the outer panel thereon during manufacturing of the outer panel, and to be engaged in an opening of the inner panel to position the outer panel relative to the inner panel. The positioning structure combines the arrangements of both positioning holes and positioning ribs, thereby greatly enhancing the eligibility rate of spray painting and welding stability.

Abstract: An ANPC inverter, a zero-crossing switching method and a zero-crossing switching apparatus of the ANPC inverter are provided. The method includes: controlling switch states of switch devices in a bridge leg to change according to a preset logic when zero-crossing switching occurs in an output voltage instruction of the bridge leg, so as to prevent overvoltage in the switch device in the bridge leg. The preset logic includes switching among a sequence of switch state combinations. Switch state combinations of the switch devices before and after the zero-crossing switching occurs are defined as the first and second switch state combinations of the sequence. The second to the penultimate switch state combinations are all safe switch state combinations selected in advance, in each of which a maximum voltage borne by the switch devices in the bridge leg is clamped to a safe limit value.