Abstract: An adaptive DC-DC boost converter arrangement and an electronic circuit including such an arrangement are provided. The arrangement includes a circuit board with a plurality of electronic components mounted thereon, implementing an adaptive DC-DC boost converter circuit and a boost decoupling capacitor. The adaptive DC-DC boost converter circuit comprises a DC-DC boost converter having a converter set value input, a boost supply input, and a boost voltage output, and an adaptive DC-DC boost control unit having a control input and a control output. An acoustical noise suppression filter is present having a filter input connected to the control output of the adaptive DC-DC boost control unit and a filter output connected to the converter set value input of the DC-DC boost converter.

Abstract: A foldable rearview mirror assembly for a vehicle is disclosed. The assembly comprises: a mounting bracket mountable to a vehicle, the mounting bracket having a base with detent features disposed on a detent circle on the base; a mirror head frame rotatably mounted to the mirror base for rotation about a mirror head axis, the frame having detent features to match the detent features of the base, the detent features of the base and the frame forming a detent system, the detent system having at least a drive position. The frame is shaped to provide an aperture to receive either of: a manual fold insert; or a power fold mechanism having a clutch mechanism, the aperture at least partially inboard in a radial direction with respect to the detent features on the frame whereby at least the clutch mechanism of the power fold mechanism can be accommodated to operate on a smaller radius than that of the detent features.

Abstract: An external rear view mirror assembly to be fitted to a motor vehicle is disclosed. The assembly comprises: a mirror base mountable to a vehicle; a mirror head frame rotatably mounted to the base for rotation about a mirror head axis; a detent operably interposed between the base and the frame; a spring acting between the frame and the base in a direction parallel to the axis, the spring for holding the detent engaged; and a power fold mechanism operably interposed between the base and the frame, the power fold mechanism having a drive train and a clutch mechanism, the clutch mechanism comprising a pair of axially spaced apart clutching faces, connecting the drive train to the base when the drive train is driving, the clutch mechanism arranged and constructed such that forces are not transmitted from the frame to the drive train when the drive train is not driving.

Abstract: A foldable rearview mirror assembly for a vehicle is disclosed. The assembly comprises: a mounting bracket mountable to a vehicle, the mounting bracket having a base with detent features disposed on a detent circle on the base; a mirror head frame rotatably mounted to the mirror base for rotation about a mirror head axis, the frame having detent features to match the detent features of the base, the detent features of the base and the frame forming a detent system, the detent system having at least a drive position. The frame is shaped to provide an aperture to receive either of: a manual fold insert; or a power fold mechanism having a clutch mechanism, the aperture at least partially inboard in a radial direction with respect to the detent features on the frame whereby at least the clutch mechanism of the power fold mechanism can be accommodated to operate on a smaller radius than that of the detent features.

Abstract: An external rear view mirror assembly to be fitted to a motor vehicle is disclosed. The assembly comprises: a mirror base mountable to a vehicle; a mirror head frame rotatably mounted to the base for rotation about a mirror head axis; a detent operably interposed between the base and the frame; a spring acting between the frame and the base in a direction parallel to the axis, the spring for holding the detent engaged; and a power fold mechanism operably interposed between the base and the frame, the power fold mechanism having a drive train and a clutch mechanism, the clutch mechanism comprising a pair of axially spaced apart clutching faces, connecting the drive train to the base when the drive train is driving, the clutch mechanism arranged and constructed such that forces are not transmitted from the frame to the drive train when the drive train is not driving.

Abstract: A vehicle external mirror assembly (10) comprising a mirror head (30) adapted to support a mirror, the mirror head (30) having an external shell (36), a first foam core (37) providing support for the shell (36), a mirror base (20) adapted for mounting to a vehicle, the mirror base (20) connected to the mirror head (30) or integral with the mirror head (30) and a plurality of electrical conductors (32) disposed within the first foam core (37), the conductors (32) are arranged and constructed to diffuse stress within the foam core (37).

Abstract: A pivot assembly for a vehicle external mirror having a mirror head mounted to a mirror base, the assembly comprising a first member (20), a second member (30), the first and second members (20, 30) mounted in or being part of the mirror base and the mirror head respectively, the first and second members (20, 30) having respectively first and second detent sides (24, 34), inner sides (26, 36) and apertures (28, 38) extending from the detent side (24, 34) to the inner sides (26, 36) respectively, detent means (56, 59), a spigot (50), a spring (60), means (56, 72) for applying a pre-load to the spring (60), the initial relative rotation between the second member (30) and the first member (20) in a first direction causes loading of the spring (60), the pre-load is maintained during subsequent relative rotations between the second (30) and the first member.(20).

Abstract: A pivot arrangement between a mirror head and a mirror mounting bracket of a rear vision mirror for a motor vehicle which uses a disc spring with a negative spring rate over part of its travel. The disc spring has a height to thickness ratio of greater than {square root}2(1.414).

Abstract: This invention is a pivot assembly 10 that connects mirror head 11 and a mirror mounting bracket 12 of a rear vision mirror that comprises a spigot 17, a plate 14 with an aperture 26 that is journalled to the spigot 17. A detent is located between the plate 14 and the spigot 17 which holds these components together to in turn hold the mirror head 11 in at least one required position with respect to the mirror mounting bracket 12. The detent changes from a locked position where the plate 14 is held with respect to the spigot 17 to a disengaged position when the plate 14 is rotated with respect to the spigot 17. A spring 40 acts against the detent to hold it in its locked position. The spring 40 yields to allow the detent to move to its disengaged position as the plate 14 is rotated with respect to the spigot 17. An attachment mechanism is provided both on the spigot 17 and the plate 14 that allows the spigot 17 to be secured to either one of the mirror head 11 or mirror mounting bracket 12.