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US 11,577,649 B2Granted
Active outside rear view device enclosure
AssigneeGM Global Technology Operations LLC
InventorDavid C. Caples
Life of this patent
Estimating the term…
Abstract
An active outside rear view system for a vehicle includes a support structure mounted to an exterior surface of the vehicle. A rear view device is movably affixed to the support structure. A linkage extends from a first end to a second end, where the first end of the linkage is movably affixed to an aerodynamic enclosure and the second end of the linkage is movably affixed to the support structure. An actuator is engaged with the linkage and moves the aerodynamic enclosure between at least a first position and a second position different from the first position. The aerodynamic enclosure is independently movable relative to the rear view device and the support structure. The aerodynamic first position and the second position provide differing aerodynamic characteristics to the active outside rear view system.
Claims17
An active outside rear view system for a vehicle, the system comprising:
- a support structure mounted to an exterior surface of the vehicle;
- a rear view device movably affixed to the support structure;
- a linkage extending from a first end to a second end, wherein the first end of the linkage is movably affixed to an aerodynamic enclosure and the second end of the linkage is movably affixed to the support structure;
- and
- an actuator engaged with the linkage and moving the aerodynamic enclosure between at least a first position and a second position different from the first position, wherein the aerodynamic enclosure is independently movable relative to the rear view device and the support structure, wherein aerodynamic characteristics of the active outside rear view system are different in each of the first position and the second position of the aerodynamic enclosure;
- a control module, the control module in communication with the actuator and selectively moving the aerodynamic enclosure between the at least first and second positions, wherein the control module comprises:
- a processor, a memory, and one or more input/output ports, the memory storing programmatic control logic, the input/output ports receiving data from the actuator and passing the data to the processor, the processor taking the data as an input and executing the programmatic control logic, the processor passing actuator positioning commands to the input/output ports, and the input/output ports transmitting the actuator positioning commands to the actuator, wherein the programmatic control logic further comprises:
- a first programmatic control logic engaging a first mode of the active outside rear view device, and a second programmatic control logic engaging a second mode of the active outside rear view device;
- the first mode being a passive mode, wherein the control module receives a command from a vehicle operator, the command setting a desired position for the aerodynamic enclosure, and the control module transmits a passive positioning command to the actuator to achieve the desired position;
- and
- the second mode being an active mode, wherein the control module continuously monitors vehicle state parameters by continuously receiving data via the input/output ports, from vehicle state sensors comprising:
- speed sensors, vehicle yaw rate sensors, vehicle acceleration rate sensors, steering wheel angle sensors, throttle position sensors, accelerator pedal position sensors, brake pedal position sensors, and drive mode selection status data, and wherein the control module takes the data as input to a second programmatic control logic that, when executed by the processor, continuously transmits active positioning commands to the actuator to continuously and automatically adjust the position of the aerodynamic enclosure.
9 more elements
A method for adjusting a position of an active outside rear view system for a vehicle, the method comprising:
- utilizing a control module to adjust the position of the active outside rear view system;
- storing programmatic control logic within a memory of the control module;
- receiving, by input/output ports of the control module, a mode selection input, the mode selection input engaging a first programmatic control logic, or a second programmatic control logic, the first programmatic control logic engaging a first mode of the active outside rear view device, and the second programmatic control logic engaging a second mode of the active outside rear view system;
- receiving, by the input/output ports of the control module, data transmitted from an actuator of the active outside rear view system in communication with the input/output ports, the active outside rear view system further including:
- a support structure mounted to an exterior surface of the vehicle;
- a rear view device movably affixed to the support structure, the rear view device including one or more of a sensor, a camera, and an optical mirror;
- an aerodynamic enclosure;
- a linkage extending from a first end to a second end, wherein the first end of the linkage is movably affixed to the aerodynamic enclosure and the second end of the linkage is movably affixed to the support structure;
- and
- an actuator engaged with the linkage and moving the aerodynamic enclosure between at least a first position and a second position different from the first position, wherein the aerodynamic enclosure is independently movable relative to the rear view device and the support structure;
- passing the data from the input/output ports to a processor of the control module, the processor receiving the data as input;
- executing, with the processor, the programmatic control logic to generate actuator positioning commands as output;
- passing the actuator positioning commands to the input/output ports;
- transmitting the actuator positioning commands to the actuator;
- and
- selectively adjusting the aerodynamic enclosure between at least the first position and the second position based on the actuator positioning commands, wherein aerodynamic characteristics of the active outside rear view system are different in each of the first position and the second position of the aerodynamic enclosure.
13 more elements
An active outside rear view system for a vehicle comprising:
- a support structure mounted to an exterior surface of the vehicle;
- a rear view sensor, camera, or optical mirror movably affixed to the support structure;
- a linkage extending from a first end to a second end, wherein the first end of the linkage is movably affixed to a forward-facing aerodynamic enclosure, and the second end of the linkage is movably affixed to the support structure opposite the rear view sensor, camera, or optical mirror;
- an actuator engaged with the linkage and moving the aerodynamic enclosure between at least a first position and a second position different from the first position, the actuator including one or more of an electromechanical device, a hydraulic device, a pneumatic device, an aero-elastic device, and a shape-memory device, and
- wherein in the first position, the aerodynamic enclosure is positioned to generate a predetermined minimum quantity of aerodynamic drag, and in the second position the aerodynamic enclosure is positioned to generate a predetermined maximum quantity of aerodynamic downforce, wherein the aerodynamic enclosure is independently movable relative to the rear view sensor, camera, or optical mirror and the support structure.
2 more elements
Dependencies are inferred from the claim text.