Light bar system for a vehicle's steering wheel

Abstract

Light bar system for a vehicle's steering wheel, including: a light guide (208) having an outer surface (220) and an inner surface (222), which extend between a first end (224) and a second end (226) of the optical fiber (208), wherein the outer and inner surfaces (220, 222) of the optical fiber (208) are arc-shaped between the ends (224, 226) of the optical fiber (208) and are spaced apart opposite each other with respect to a plane, wherein the plane extends through the first and second ends (224, 226) of the optical fiber (208) and is parallel to the outer and inner surfaces (220, 222) of the optical fiber (208), at least one light source located adjacent to the first end (224) of the light guide (208), wherein the light source is configured to emit light into the first end (224) of the light guide (208), and wherein the light guide (208) is configured to transmit light from the light source through at least a part of the outer surface (220) of the light guide (208); an outer lens (260) having an outer surface (264) and an inner surface (266) extending between a first end and a second end of the outer lens (260), wherein the outer and inner surfaces (264, 266) of the outer lens (260) are arc-shaped between the ends of the outer lens (260) and are spaced apart from each other with respect to a plane, wherein the plane extends through the first and second ends of the outer lens (260) and is parallel to the outer and inner surfaces (264, 266) of the outer lens (260), and wherein the inner surface (266) of the outer lens (260) is adjacent to the outer surface (220) of the light guide (208); and A liquid crystal display, LCD (206), having an outer surface (212) and an inner surface (214) extending between a first end (216) and a second end (218) of the LCD (206), wherein the outer and inner surfaces (212, 214) of the LCD (206) are arcuate between the ends (214, 216) of the LCD (206) and are spaced apart opposite each other with respect to a plane, wherein the plane extends through the first and second ends (214, 216) of the LCD (206) and is parallel to the outer and inner surfaces (212, 214) of the LCD (206), and wherein the LCD (206) is arranged between the outer surface (220) of the light guide (208) and the inner surface (266) of the outer lens (260).

Description

[0001] This invention relates primarily to a steering device including a light element. More specifically, the invention relates to a steering wheel of a vehicle including a light element that provides indication and warning signals to the user.

[0002] Various advanced driver assistance systems feature visual, audible, and / or sensor warnings. The visual interfaces of these assistance systems must minimize the driver's reaction time to warnings and the driver's workload to understand and respond to the warning or data. Conventional instrument panels and center console displays divert the driver's attention from the vehicle's navigation. Similarly, idealized advance warning displays can be irritating and occasionally distract the driver.

[0003] Corresponding light bar systems are known from the prior art, for example from the documents US 2010 / 0 218 641 A1, JP 2010-241 275 A, US 2012 / 0 257 136 A1, US 2012 / 0 026 424 A1 or US 2014 / 0 098 558 A1, and typically comprise a display system with a light guide having an outer surface and an inner surface extending between both ends of the light guide. The outer and inner surfaces of the light guide are arc-shaped between the ends and spaced opposite one another with respect to a plane. The plane extends through both ends of the light guide and is parallel to the outer and inner surfaces of the light guide. Corresponding display systems include a light source disposed adjacent to the first end of the light guide, the light source being configured to emit light into the first end of the light guide.In addition, the light guide is configured to transmit light from the light source through at least a portion of the outer surface of the light guide.

[0004] Based on the prior art, the invention is based on the object of providing an assistance system for drivers that uses a driver's peripheral vision and allows him to keep both hands on the steering wheel while looking in his direct line of sight.

[0005] The object is achieved according to the invention with a light bar system according to the features of patent claim 1 and according to the features of patent claim 23. Advantageous developments of the invention are described in the dependent patent claims.

[0006] According to a first aspect of the present invention, a light bar system for a steering wheel of a vehicle is provided, comprising the features of claim 1. Thus, the driver can gain valuable and important reaction time in critical driving situations.

[0007] According to a second aspect of the present invention, a light bar system for a steering wheel of a vehicle is provided, having the features of claim 23. Thus, the driver can gain valuable and important reaction time in critical driving situations.

[0008] The device is explained in even greater detail in the following exemplary drawings. The drawings are merely exemplary and serve to illustrate the structure of the preferred devices and certain features that may be used alone or in conjunction with other features. The invention should not be limited to the illustrated embodiments. Fig. 1 shows a partial view of a steering device not according to the invention; Fig. 2 shows a partial view of a steering device not according to the invention; Fig. 3A is a schematic sectional view of a steering handle not according to the invention; Fig. 3B shows a partial view of an upper part of the steering handle not according to the invention; Fig. 3C shows a schematic partial sectional view of a steering handle and light element not according to the invention; Fig. 4 shows a schematic partial sectional view of a steering handle and light element not according to the invention; Fig. 5A is a partial sectional view of a light element not according to the invention; Fig. 5B shows a partial sectional view of a light element not according to the invention; Fig. 5C shows a partial sectional view of a light element not according to the invention; Fig. 6A shows a plan view of a steering handle not according to the invention; Fig. 6B is a plan view of a steering handle not according to the invention; Fig. 6C shows a plan view of a steering handle not according to the invention; Fig. 6D shows a plan view of a steering handle not according to the invention; Fig. 7 shows a partial plan view of a steering handle and light element not according to the invention; Fig. 8 shows a partial plan view of a steering handle and light element not according to the invention; Fig. 9 shows a partial plan view of a steering handle and light element not according to the invention; Fig. 10 shows a partial plan view of a steering handle and light element not according to the invention; Fig. 11 shows a partial plan view of a steering handle and light element not according to the invention; Fig. 12 shows a partial plan view of a steering handle and light element not according to the invention; Fig. 13 shows a schematic computer system architecture of a steering device not according to the invention; Fig. 14 shows a schematic computer system architecture of a steering device not according to the invention; Fig. 15 is a partial front perspective view of a steering wheel supporting a molded light bar warning system according to an embodiment of the present invention; Fig. 16 shows a left perspective view of the Fig. 15; Fig. 17 illustrates a right perspective partial view of the molded light bar warning system Fig. 15, which is along the line AA from Fig. 2 is cut out; Fig. 18 illustrates a left perspective partial view of the molded light bar warning system Fig. 15; Fig. 19 is an exploded view of the molded light bar warning system of the Fig. 15 according to an embodiment of the invention illustrating its components; Fig. 20 shows a rear view of the molded light bar warning system Fig. 15; Fig. Figure 21 is a perspective view of an outer lens according to an embodiment based on the molded light bar system of Fig. 15 may be arranged; Fig. 22 shows a perspective view of a frame coupling element according to an advantageous embodiment of the invention; Fig. 23 shows a side view of the Fig. 22 shown frame coupling element; Fig. 24 shows a side view of the outer lens and the light guide according to an advantageous embodiment of the invention comprising a light-changing film arranged between them; Fig. 25 shows a side view of a part of the light guide according to an advantageous embodiment of the invention; Fig. 26A illustrates a perspective view of an inner surface of a cap according to an advantageous embodiment of the invention; Fig. 26B is a perspective view of an outer surface of a Fig. 26A; and Fig. 27 shows a perspective view of a shell according to another advantageous embodiment of the invention.

[0009] Certain exemplary embodiments of the invention will now be described with reference to the drawings. These embodiments generally relate to a steering device for a vehicle. Fig. 1 illustrates a partial top view of an exemplary steering device 100 including a steering handle 102. The steering handle 102 may be configured for gripping to facilitate control of the vehicle. For example, the steering handle 102 may be attached to a fixed component (not shown) so as to be rotationally movable about a steering axis. An exemplary fixed component may include, for example, a steering column that receives a steering spindle extending along the steering axis and serves to transmit rotational movement of the steering handle 102 to the wheels of the motor vehicle. The rotational movement of the steering handle 102 may be transmitted to the wheels by mechanical and / or electrical means. In an exemplary implementation, the steering handle 102 may include a single continuous handle portion or any number of unique handle sections.For example, the steering handle 102 may have a ring-like shape with an outer contour whose shape is substantially annular. In an alternative embodiment, the steering handle 102 may define any suitable shape, including, for example, annular, elliptical, square, rectangular, or any other regular or irregular shape.

[0010] In an exemplary embodiment, the steering device 100 also includes a light element 104 for providing indicator and / or warning light signals to the driver of the vehicle. The light element 104 may, for example, comprise a liquid crystal display (LCD), a thin-film transistor display, an active matrix display, a segment display (e.g., enhanced black nematic (IBN), a super-twisted nematic (STN) process, etc.), a light-emitting diode (LED), a laser, a halogen, a fluorescent substance, an infrared (IR) LED illuminator, an organic light-emitting diode (OLED) display, or any other suitable light-emitting element. In an alternative embodiment, the light element may comprise a light tube (not shown) with start and end LEDs located at opposite ends of a (solid or hollow) molded plastic rod. The steering device 100 may further comprise a reflective material.Surface for recycling light emitted by the light element 104 and used to direct light toward the driver. In an exemplary implementation, the illumination of the IR LED can also provide a desired heating effect on the steering grip 102 and supply heat to the driver's hands if the light element 104 includes an IR LED illuminator. For example, a heating element, typically a heating fabric, can be provided in a steering grip 102 and used to create a heating effect on the steering grip 102. The heating fabric can be wrapped around the steering grip 102 and / or incorporated into the material of the grip cover. In an exemplary steering device 100, the heating fabric does not cover the portion of the steering grip 102 including the light element 104, resulting in a gap in the heating effect.The IR LEDs can be used as the light element 104 to generate the heating effect in the area of ​​the light element 104, thus creating a full heating effect on the surface of the handlebar 102. In another exemplary steering device 100, the thermal fabric partially or entirely covers the portion of the handlebar 102 including the light element 104, thus reducing and / or eliminating any gaps in the heating effect.

[0011] In the exemplary embodiment, the light element 104 can display a single color or multiple colors. For example, the exemplary LED can include a single-color LED, a bi-color LED, and a tri-color LED. The steering device 100 can include a single light element 104 or any number of light elements 104. Furthermore, different types of light elements 104 can be used in the same steering device 100. For example, a steering handle 102 can include standard LEDs as well as IR LEDs. The light element 104 can be located on any part of the steering handle 102. For example, as shown in Fig. 1, the light element 104 may be located on an inner edge of the handlebar 102. In an alternative embodiment (not shown), the light element 104 may be located on an outer edge of the handlebar 102. In an alternative embodiment (not shown), the light element 104 may be located on a front or rear side of the handlebar 102. The light element 104 may be provided in a direction defined by the perimeter / diameter of the handlebar 102. For example, as shown in Fig. 1, the light element 104 may extend along the direction of the upper half of the handlebar 102 on the inner diameter of the handlebar 102. The light element may define any suitable shapes, including, for example, annular, elliptical, square, rectangular, or any other regular or irregular shapes. For example, as shown in Fig. 1, the exemplary light element 104 is designed with an elongated shape and curved sides. In an alternative Fig. 2, the light element 104 may include a vertical element 106 extending in a radial direction of the steering handle 102.

[0012] Fig. 3A shows a schematic side sectional view of an exemplary steering handle 102. As illustrated in Fig. 3A, the exemplary handlebar 102 includes a light element 104 positioned on the inner diameter of the handlebar 102. In particular, Fig. 3A, the size of the body of the steering handle 102 and the light element 104 can be adjusted and configured so that the body of the steering handle 102 shields the light element from the ambient light 108. For example, as in Fig. 3B and Fig. 3C, the light element 104 is shielded from the ambient light 108 directed onto the top of the handlebar 102. Because the light element 104 is shielded from the ambient light 108, a lower intensity signal may be used. In one example implementation, a daylight warning intensity of the light element 104 may be approximately 150 to 800 nits. In a particular implementation, the daylight intensity of the light element 104 may be approximately 150 to approximately 500 nits. In another implementation, the daylight intensity of the light element 104 may be approximately 150 to approximately 250 nits. In another example, the daylight intensity of the light element 104 may be at least approximately 250 nits. In another example, the daylight intensity of the light element 104 may be at least approximately 150 nits. In a further exemplary embodiment, the nighttime warning intensity of the light element 104 can be at least about 5 to about50 nits, since the ambient light is lower at night and the light element 104 shields from existing ambient light 108. In another example, the nighttime warning intensity of the light element 104 may be at least about 5 to about 25 nits. In another example, the nighttime warning intensity of the light element 104 may be at least about 5 to about 15 nits. In another example, the nighttime warning intensity of the light element 104 may be at least about 5 to about 10 nits. In another example, the nighttime warning intensity of the light element 104 may be at least about 5 nits.

[0013] In an exemplary embodiment, a lens 110 is configured to cover the light element 104. The size of the lens 110 can be adjusted and shaped to match the size and shape of the light element 104. As shown in Fig. 4, the outer surface of the lens 110 may be adjacent to the outer surface of the steering handle 102. For example, the lens 110 may have a surface congruent with the outer surface of the steering handle 102. In an alternative embodiment (not shown), the lens 110 may provide an outer surface that has a different general shape compared to the profile defined by the steering handle 102. The lens 110 may comprise a fully or partially transparent, translucent, or opaque body. The lens 110 may be made of a hard or soft material. The lens 110 may have a surface feature or texture that provides a grip or "feel" to the rider. The lens 110 may be comprised of a single layer of material or multiple layers of material.The lens 110 can filter, direct, or otherwise modify the properties of the light signals emitted by the light element 104. In an exemplary embodiment, the lens 110 is configured to shield the light element 104 from ambient light.

[0014] As in Fig. 4, the steering handle 102 also includes a frame 112 that provides the support structure for the steering handle 102, a bracket 114 mounted on the frame 112 and configured to engage a PCB 116 and / or control circuitry to support and control the operation of the light element 104. The bracket 114 can be sized and shaped to allow attachment to various frames 112, the PCB 116, and lens 110 structures. The brackets 114 can be attached to the frame 112 using screws, hooks, clips, or any other form of mechanical fastening devices known in the art. An exemplary bracket 114 can be mated to the frame 112 using a thermally conductive "gap pad" or other thermally conductive adhesive.The frame 112 may also define the support structure for the centrally located hub and spokes of the handlebar 103. In an alternative embodiment (not shown), the carrier 114 is not required, and the PCB 116 and / or the control circuitry is / are connected to the frame 112 of the handlebar 102. As shown in FIG. Fig. 4, the exemplary steering grip 102 includes a cover 118 configured to cover the exterior of the body of the steering grip 102 and provide a surface for the driver to grasp during vehicle operation. Further, in an exemplary implementation, the cover 118 may partially or completely cover the lens 110 without significantly impairing light transmission to the driver. It is contemplated that while the lens 110 is covered, the cover 118 obscures the lens 110 and the light element 104 when they are not illuminated. An exemplary cover 118 material includes, for example, leather, cloth, polyurethane foam, and various other synthetic materials.

[0015] In one exemplary embodiment, to reduce power consumption and heat generation, the light emitted by the light element 104 is filtered and directed to maximize the light signal passed through the lens 110. In one exemplary embodiment, the light emitted by the light element 104 is recycled using a solid acrylic lens 128. The shape of the lens 128 may be trapezoidal so that the light is reflected in the desired direction (i.e., toward the driver). In one exemplary embodiment, the reflective surfaces of the carrier 114 are painted white to ensure that the light is reflected in the desired direction and not refracted within the system. Filler material and fibers may be added to the lens 110 and / or lens 128 to direct the light toward the driver and to increase the brightness of the light output through the lens 110.In another embodiment, brightness-enhancing films 120 may be used to direct the light toward the driver. The exemplary brightness-enhancing films 120 may be used individually, or multiple films may be stacked. As shown in FIG. Fig. 5B, multiple brightness-enhancing films 120 may be stacked next to the lens 128. In another embodiment, scattering films 122 and / or structured lens surfaces may be used when high light intensity is not required. As shown in Fig. 5B, the diffusing sheets may be located adjacent to the brightness enhancing sheets 120. In an alternative embodiment, a diffusing sheet 122 may be disposed adjacent to the LED. The light passes through the diffusing sheets 122 and into the brightness enhancing sheets 120. Another diffusing sheet 122 may be located adjacent to the brightness enhancing sheets 120 and the lens 110. By ensuring a tight coupling between the light element 104 and the lens 110, the brightness of the output light is increased. Any order or combination of the brightness enhancing sheets 120, diffusing sheets 122, and lenses 128 / 110 is contemplated. In an exemplary embodiment, the brightness enhancing sheets 120 and diffusing sheets 122 may be stacked and oriented such that ambient light entering the lens 110 does not penetrate the lens 110.Blocking the ambient light results in a higher transmission rate of the lens 110, while at the same time preventing the internal components of the light assembly and the steering handle 102 from being seen by the driver from the outside.

[0016] The light element 104 can be connected to the circuitry for controlling the operation of the light signal provided by the light element 104. In one exemplary embodiment, the light element 104 can be wired directly to the control circuitry of the steering device 100. For example, the light element 104 can include a T-type LED that can be wired to the power source of a steering device 100 through an in-line resistor. In an alternative embodiment, the light element 104 can be connected to a PCB (not shown) or a processor attached to or connected to the vehicle's electronic control unit. The PCB / processor can be configured to provide operating instructions from the vehicle to the light element 104. In another embodiment, the light element 104 can be connected to a PCB 116 and configured to send operating instructions to the light element 104.For example, as in . Fig. As illustrated in Figure 4, the light element 104 may be physically attached to the surface of the PCB 116. The PCB 116 may include, for example, rigid, semi-rigid, and flexible PCBs 116. An exemplary PCB 116 may include a flex circuit in which the LEDs 116 are attached to a support material acting as a heat sink. The support material may include, for example, a flex support made of aluminum. Other types and combinations of PCBs are contemplated.

[0017] In an exemplary embodiment, the PCB 116 may be attached to the steering handle 102. For example, as shown in Fig. 4, the PCB 116 and / or a control circuit is attached to the frame 112 of the handlebar 102 by supports 114. In an alternative embodiment (not shown), the PCB 116 and / or the control circuit is attached directly to the frame 112 of the handlebar 102. The sheet material of an exemplary PCB 116 may be FR-4 (G-10) glass-reinforced epoxy laminate. Since the thermal conductivity of FR-4 is limited (approximately 0.003 W / cm·C°) and since the frame 112 can be made of materials with high thermal conductivity, including, for example, magnesium alloy (die-cast) (1.575 W / cm·C°), aluminum alloy (die-cast) (2.165 W / cm·C°), and steel (low carbon) (0.669 W / cm·C°), it is desirable to thermally bond the PCB 116 to the frame 112 to conduct heat away from the light elements 104.In an exemplary embodiment, a PCB 116 may be thermally connected to a heat exchanger component connected to the handlebar grip 102. The heat exchanger component may be configured to transfer heat from the PCB 116 to the handlebar grip 102. The heat exchanger component may comprise, for example, a thermally conductive resin, an epoxy, a polymer, a silicone, an adhesive, a thermal pad, and / or a metal. In an exemplary embodiment, the handlebar grip 102 may be connected to the centrally located hub and spokes such that heat from the light element 104 may be transferred from the handlebar grip 102 to the spokes and the centrally located hub of the handlebar grip 102.

[0018] In a high-intensity environment (e.g., 5 nits or higher), the exemplary heat exchanger component must dissipate heat from the light element 104 at a rate sufficient to ensure that the surface temperature of the steering handle 102 does not exceed approximately 45°C, to maintain the comfort of the driver while gripping the steering handle 102, and to extend the lifetime of the light element 104 (in illumination hours). In an alternative embodiment using only low-intensity light elements 104, the steering device 100 may not include a heat exchanger component. For example, in a system where the light element 104 produces light with an intensity as low as 5 nits, the heating output by the light elements 104 may not require the use of a heat exchanger component to dissipate heat from the light element 104.

[0019] In an exemplary embodiment, the steering device 100 may include a single PCB 116 or multiple PCBs 116 arranged along the steering handle 102. For example, as shown in Fig. 6A, the handlebar 102 may include a single PCB 116 extending over the entire circumferential length of the handlebar 102, thus providing a 360° illumination system. In an alternative embodiment, as shown in Fig. 6B illustrates, a handlebar 102 may have a single PCB 116 along the upper half of the circumferential length defined by the handlebar 102. In further Fig. 6CD, the steering handle 102 may include a plurality of PCBs 116. Since the steering device 100, and in particular the steering handle 102, are designed to withstand significant loads in the event of a crash, a steering handle 102 including a plurality of PCBs may reduce the likelihood of a PCB 116 breaking after impact and / or airbag deployment. Moreover, the arrangement of a plurality of PCBs 116 along the diameter of the steering handle 102, and in particular along the upper half of the steering handle 102, helps reduce the likelihood of a PCB 116 breaking under a load in the 12 o'clock position on the edge of the steering handle 102. As shown in Fig. 6C, the handlebar 102 may have a plurality of PCBs 116, including, for example, a PCB 116A disposed on a right portion of the diameter of the handlebar 102, and PCB 116B disposed on a left portion of the diameter of the handlebar. In another embodiment, the handlebar 102 may be configured as shown in Fig. 6D, the handlebar may include three PCBs 116. PCB 116A may be located on a right portion of the handlebar 102, PCB 116B may be located on a left portion of the handlebar, and PCB 116C may be located on an upper portion of the handlebar 102 between PCBs 116A and 116B. In another embodiment (not shown), the handlebar 102 may include one PCB 116 disposed on a lower portion of the handlebar 102. Any number of locations and quantities of PCBs 116 are contemplated in the disclosed embodiment.

[0020] In an exemplary embodiment, the PCB 116 may include a single zone or multiple zones for directing the operation of the light element 104. For example, in an exemplary embodiment, the PCB 116 may include a zone for controlling the operation of the light element 104. The PCB 116 may control the light element 104 based on the instructions provided to the corresponding zone of the PCB 116. The light element 104 may include a single light source, such as an LED, or multiple light sources, i.e., multiple LEDs. In an exemplary embodiment, the PCB 116 may provide separate instructions to each of the individual LEDs in the same zone.

[0021] In an alternative embodiment, the PCB 116 may have multiple zones, for example, two or more zones, each associated with a different light element 104 or a group of light elements 104. Each zone may be configured to provide separate operating instructions to its respective light elements 104. In an exemplary embodiment, the LEDs may be arranged in groups, and each group of LEDs may be associated with a zone on the PCB 116. For example, the PCB 116 may include 36 LED-like light elements 104. The exemplary PCB 116 may be divided into four zones, each zone associated with 9 LEDs. The PCB 116 may separately control the operation of the LEDs in each of the four zones based on the instructions provided by the respective zones.

[0022] In an alternative embodiment, the PCB 116 may include a number of zones corresponding to the number of light elements 104 located on the PCB 116, with each zone providing operating instructions to its corresponding individual light element 104. For example, an exemplary PCB 116 may include 36 LED-type light elements 104 and 36 zones corresponding to each of the 36 LEDs. The PCB may individually control the operation of each of the 36 LEDs based on the instructions provided to each of the corresponding 36 zones.

[0023] In one exemplary implementation, the steering device 100 may include a processor in communication with the PCB 116. The processor may be configured to direct the operation of the light element 104. The processor may be connected to the steering device 100. In one exemplary implementation, the processor may be disposed on or proximate the PCB 116 of the steering handle 102. In an alternative implementation, the processor may be disposed on or otherwise connected to the vehicle's electronic control unit. In another implementation, the processor may be disposed on or otherwise connected to another vehicle system. Communication lines (i.e., data and / or power wires) may be provided from the alternative system to the light element 104 when the processor is connected to a system other than the steering device 100 and / or the steering handle 102.For example, the light element 104 and / or the PCB 116 may be connected to the vehicle's electronic control unit (ECU) with a wire running from the ECU to the light element 104 / the PCB 116. In another example, certain zones on the PCB 116 may communicate with a processor connected to a system other than the steering device 100 and / or the steering handle 102, and the communication lines (i.e., data and / or power wires) may be supplied to the zoned PCB 116 from the alternative system.

[0024] In one exemplary implementation, the light element 104, the PCB 116, and the processor may communicate with the vehicle via two wires, the first wire being a power source for the light element 104, the PCB 116, and the processor, and the second wire establishing a data connection between the steering device 100 and the vehicle. In another example, the light element 104, the PCB 116, and the processor may communicate with the vehicle via two wires, one wire containing multiple communication lines and the second wire containing the power source. For example, the first wire may have six communication lines to direct the operation of the respective zones where the PCB 116 has six zones, and the second wire may be a power source to provide power to the PCB 116. Alternatively, the light element 104, the PCB 116, and the processor may communicate with the vehicle via only one power source.

[0025] In an exemplary implementation, the processor may be configured to receive data from the vehicle. Data received from the vehicle may include, for example, GPS (Global Positioning System) data, navigation data, foreign object proximity data, vehicle performance data, general alert data, direction data, location data available from onboard sensors such as cameras, radar, LIDAR (Light Detection and Ranging) systems, vehicle communication system data, and any other data relevant to the operation of the vehicle, the status of the user, and / or the functionality of the steering device 100.

[0026] The navigation data may include, for example, preparation for a course change (e.g., a lane recommendation in advance of an imminent course change), a navigation course change (e.g., instructions to use specified routes and / or notifications that the specified route has been recalculated), and a distance to the course change (e.g., distance to the turn). The foreign object proximity data may include, for example, the distance and direction of a detected foreign object, as well as its size and relative speed and direction.Vehicle performance data may include, for example, vehicle on / off operation, battery life / status, fuel level, fuel efficiency, engine RPM, vehicle over / understeer, turbocharger / supercharger boost pressure, electric vehicle (eV) status, stop-and-go vehicle mode, straight-ahead position of steering handle 102, vehicle lateral acceleration, autonomous vehicle driving status data, and adaptive cruise control status data. General vehicle alert data may include, for example, occupant restraint data, airbag status data, door or window open / partially open, low tire pressure, vehicle entertainment and communication system status (e.g., incoming call, Bluetooth enabled, audio volume, etc.).The direction data may, for example, include a measure of distance remaining to be covered (e.g., a race lap time countdown as a binary clock, lap segment, time segment, etc.) and a measure of distance remaining to be covered / covered (e.g., number of race laps).

[0027] The operation of the light element 104 can be controlled in response to data received from the steering device 100 and / or the vehicle. The light element 104 can be used to provide data and warning signals to the vehicle driver. In another embodiment, the light element 104 can be used to provide an aesthetically pleasing or decorative effect. For example, the light element 104 can provide a decorative effect upon starting the vehicle in addition to providing an indication of the vehicle's operating status.

[0028] Controlling the illumination of light element 104 may include, for example, the on / off status of light element 104, the intensity, the design / pattern, the on / off lighting cycle, the color, or any other features of the light element that can be controlled or otherwise actuated. In one exemplary implementation, the on / off status of light element 104 may be controlled. For example, an implementation may include multiple light elements 104, where the quantity of light elements 104 illuminated at a given time is used to indicate the severity and / or magnitude of the alert or event, where the higher the number illuminated, the more serious the threat and / or importance of the alert / event.Similar to the quantity, the intensity of the light elements 104 can be used to indicate the extent and / or magnitude of the warning or event, with the stronger the light intensity, the greater the threat and / or importance of the warning / event. An on / off lighting cycle or lighting frequency of the light element 104 can also be controlled to create a flashing or strobe-like effect. For example, a high-frequency on / off lighting cycle can be used to indicate an important and / or time-sensitive event to warn the driver of an impact or collision. In another example, a flashing / blinking light signal can be used to illuminate the driver's eyes for use with camera-based driver monitoring systems when the light element 104 includes an IR illuminator.The operation of the exemplary IR illuminator-type light element 104 can be timed in communication with a camera or other sensing device and a processor for capturing an image of the driver's eyes. Furthermore, the IR LEDs can be used to mitigate light reflection should the driver wear glasses.

[0029] Selecting a light element 104 for illumination in a particular position can also be used to indicate the relative position of the warning or event. For example, the light element 104 may be illuminated at a corresponding position on the steering handle 102 (i.e., in the upper left quadrant) when an impact or collision warning is expected for the front of the vehicle on the driver's side. Similarly, the on / off lighting cycle can be used to create a motion effect. The perceived direction of the light pattern can be used to indicate the relative direction of the warning.For example, an on / off lighting pattern starting from the center of the steering handle 102 and moving toward the left side of the steering handle 102 may produce an illuminated wave-like effect to the left, which may be used to display a warning / event related to the left side of the vehicle or an indication to the driver of an upcoming course change in a navigation setting.

[0030] In an exemplary guidance device 100, an illumination pattern of the light element 104 may also be controlled. For example, in an embodiment having multiple light elements 104, the light elements 104 may be ordered by size and arranged such that a shape or pattern is created by illuminating certain light elements 104. In an exemplary embodiment, the color of the light element 104 may also be controlled. The color of the light element may also be used to indicate the seriousness or threat level associated with a particular event. For example, colors such as red, yellow, and green may be used to indicate increasing seriousness / threat associated with a particular event, with red indicating serious, yellow a moderately serious warning, and green little or no threat.For example, if the vehicle senses an impact or collision warning, or if it is traveling faster than the speed limit, the color of the light elements 104 may progress from green to yellow to red as the severity of the warning / event increases. In an alternative embodiment, controlling the color of the light element 104 may be used to indicate vehicle status or provide general driver indications. For example, colors such as blue or white may be used to indicate general vehicle status and driver indications.

[0031] The following lighting combinations are provided as examples and should not be considered limiting with respect to the disclosed invention. Additional and alternative locations and configurations of light element 104 are contemplated. Various combinations of operation of light element 104 may be used both to indicate the relative position and / or threat levels associated with a particular warning or event, as well as to provide general status data to the driver.

[0032] In an exemplary embodiment, the operation of the light element 104 may be directed in response to data received from the vehicle and / or the steering device 100. Data received from the vehicle may include, for example, GPS data, onboard sensor data, camera data, communication system data, and lane position data. The operation of the light element 104 may be directed to provide a lane departure warning to the driver. An exemplary lane departure warning display, in which the light position indicates the direction of the threat event, is shown in Fig. 7. The illuminated light element 104 may be located in the center of the steering handle 102 (position 1) should the vehicle be directed straight ahead. In response to the received data, the light elements 104 on the left side of the steering handle 102 are illuminated (position 2) as the vehicle moves to the left side of the lane. The light elements 104 are further illuminated along the left side of the steering handle 102 (position 3 and position 4) as the vehicle continues to move progressively toward the left side of the lane. Optionally, the light elements 104 on the right side of the steering handle are illuminated (position 2) as the vehicle moves to the right side of the lane. The light elements 104 are further illuminated along the right side of a steering handle (position 3 and position 4) as the vehicle continues to move progressively toward the right side of the lane.In an exemplary embodiment, the time to cross the lane may be used to determine the threat level associated with the vehicle's direction of travel.

[0033] As illustrated above, the number and position of lights may be used to indicate the relative position and / or threat level associated with the warning / event. An exemplary lane departure warning display using the number and position of illuminated light elements 104 to indicate the relative position and / or threat level of the warning or event is shown in Fig. 8. The illuminated light element 104 may be located in the center of the steering handle 102 (position 1) should the vehicle be directed straight ahead. In response to data received from the vehicle (e.g., GPS data, onboard sensor data, camera data, communication system data, and lane position data), additional light elements 104 on the left side of the steering handle 102 may be illuminated (position 2) should the vehicle move to the left side of the lane. Additional light elements 104 are illuminated further along the left side of a steering handle 102 (position 3 and position 4) as the vehicle continues to move progressively toward the left side of the lane. Optionally, additional light elements 104 on the right side of the steering handle are illuminated (position 2) should the vehicle move to the right side of the lane.Additional light elements 104 are illuminated further along the right side of the steering handle (position 3 and position 4) as the vehicle continues to move progressively toward the right side of the lane. In an exemplary embodiment, the time to cross the lane can be used to determine the threat level associated with the vehicle's direction of travel, as well as the speed and number of times the additional light elements 104 are illuminated.

[0034] As illustrated above, the color of the illuminated light elements can be used to indicate the relative position and threat level associated with the warning / event. An exemplary lane departure warning display using the color and position of the illuminated light elements 104 to indicate the relative position and / or threat level of the warning or event is shown in Fig. 9. The illuminated light element 104 may be located in the center of the steering handle 102 (position 1) if the vehicle is directed straight ahead. The illuminated light element may be provided in a color that indicates no threat / warning with the given lane position. As shown in Fig. 9, the illuminated light element may be green when the steering handle 102 is centered / pointing straight ahead (position 1). In response to data received from the vehicle (e.g., GPS data, onboard sensor data, camera data, communication system data, and lane position data), the light elements 104 on the left side of the steering handle 102 or the light elements 104 on the right side of the steering handle 102 may be illuminated as the vehicle moves to the left or right side of the lane. An initial indication of lane departure may be provided by green illuminated light elements 104 (position 2). The light elements 104 are illuminated further along the left / right side of the steering handle 102 (position 3 and position 4) as the vehicle progressively moves to the left or right side of the lane.These light elements may indicate a moderate threat / warning and may be provided, for example, by amber illuminated light elements 104 (position 3). The light elements 104 further along the left / right side of the steering handle 102 are illuminated as the vehicle progressively moves toward the left or right side of the lane. These light elements may indicate a severe and / or imminent threat and may be provided, for example, by red illuminated light elements 104 (position 4). In an exemplary implementation, the time to cross the lane may be used to determine the threat level associated with the vehicle's direction of travel.

[0035] In a further embodiment, the vertical element 106 may be used to indicate the relative position and threat level associated with a particular alert / event. As shown in Fig. As illustrated in Figure 10, the vertical element 106 may include a plurality of light elements 104. The light elements 104 located centrally within the vertical element 106 may be illuminated (position 1) if the vehicle is traveling straight ahead. Since the relative threat / warning level is minimal in the traveling straight ahead position, the illuminated light element 104 may be green in position 1. In response to data received from the vehicle (e.g., GPS data, onboard sensor data, camera data, communication system data, and lane position data), the light elements 104 on the left or right side of the vertical element 106 are illuminated, respectively, as the vehicle moves to the left or right side of the lane.

[0036] For example, an initial indication indicating that the vehicle is moving toward the left side of the lane may be provided by illuminating the light elements 104 on the left side of the vertical element (position 2). These light elements 104 may indicate a moderate threat / warning and may be provided, for example, by amber illuminated light elements 104. As the vehicle continues to move progressively toward the left or right side of the lane, the colors of the light elements 104 may change from amber to red, indicating that the threat level associated with the lane departure has escalated from moderate to serious and / or urgent.

[0037] In an exemplary embodiment, the vertical element 106 may be used to indicate the relative position and / or threat level associated with an impact / collision warning. As shown in Fig. 11, the vertical element 106 may include a plurality of light elements 104. The operation of the light elements 104 may be controlled in response to foreign object proximity data received from the vehicle. Illumination of the light elements 104 may indicate the presence of a foreign object within a predetermined distance of the vehicle and / or a distance to the foreign object. In response to object data, the light elements 104 located on the steering handle 102 illuminate. For example, during the approach of the object, the light elements 104 may illuminate in a wave pattern, indicating the direction of the object and / or the proximity of the object to the vehicle.As another example, the light elements 104 may illuminate in an illumination pattern at a higher on / off frequency, with a particular number of light elements 104, with higher intensity and / or changing colors in accordance with the direction and / or proximity of the object to the vehicle change.

[0038] In an exemplary embodiment, the vertical element 106 may be used in conjunction with the position of the light elements 104 on the side of the steering handle 102. For example, as shown in Fig. 12, the light elements 104 may be used to guide the driver in operating the vehicle. An exemplary steering device 100 may be used to guide a driver into a parking space. In the exemplary implementation, the light elements 104 may be used to guide the driver to orient the vehicle in a specific manner. The operation of the light elements 104 may include, for example, on / off illumination, illumination patterns, on / off cycles, light intensity, and color. It is contemplated that the operation of the light elements 104 of the vertical member 106 may be independent of the operation of the light elements 104 encompassed along the diameter of the steering handle 102.For example, the light elements 104 of the vertical element 106 can be used to indicate the proximity of a foreign object (e.g., a parked car), while the light elements 104 arranged along the diameter of the steering handle 102 are used to provide the user with directional and navigation data. As shown in FIG. Fig. As illustrated in Figure 12, the light elements 104 arranged along the diameter of the steering handle 102 may illuminate at a location and at a frequency that indicates the direction of travel of the vehicle. In an alternative embodiment, the light elements 104 of the vertical element 106 may operate in conjunction with the light elements 104 arranged along the diameter of the steering handle 102. For example, the vertical and radial light elements 104 may be used to provide navigation data that indicates the direction of travel of the vehicle.

[0039] In another embodiment, vertical and / or radial light elements 104 may be used to indicate a difference between the posted speed limit and the actual speed of the vehicle. For example, the steering device 100 may receive data including GPS data and vehicle performance data. The GPS data may include data associated with a posted speed limit at the vehicle's current location. The vehicle performance data may include data associated with the actual speed of the vehicle. The vehicle and / or the steering device 100 may determine that the vehicle is exceeding the posted speed limit, and the operation of the light elements 104 may be directed to indicate a threat / warning associated with the vehicle's speed.

[0040] In an exemplary implementation, the steering device may include a sensor (not shown) on the steering handle 102. The sensor may detect driver input and / or touch of the steering handle. Example sensors include, for example, capacitive sensors, pressure sensors, and conductivity / resistivity sensors. The sensor may be in communication with the PCB 116 and / or the processor. In another implementation, the driver input may be transmitted to the vehicle's electronic control unit. In an exemplary implementation, the steering device 100 may be configured to receive independent drive status data and / or adaptive cruise control data from the vehicle. The independent drive status data may indicate that the vehicle is operating independently and is not controlled by a human. The adaptive cruise control data may indicate whether the adaptive cruise control function is enabled.The adaptive cruise control maintains a preset distance between the vehicle immediately in front of the driver and / or brings the vehicle to a complete stop should an emergency situation be detected. In some independent drive status and adaptive cruise control settings, certain vehicles command direct vehicle acceleration / deceleration in addition to steering control (for example, to keep the vehicle in its lane when braking). For the lane-keeping function of the adaptive cruise control, it is essential that the driver hold the steering handle 103, otherwise the braking function will not be initiated. Similarly, in some situations, the vehicle's independent drive status may be disabled (for example, in stop-start traffic), and it is also important that the driver hold the steering handle 103 in these situations.Therefore, the operation of the light element 104 can be commanded to indicate that the vehicle is not under human control or that human operation of the vehicle is required and the driver must adjust the steering handle 102 using the received data about the status of the vehicle and / or sensor data confirming the driver's input / touch of a steering device 100.

[0041] In an alternative embodiment (not shown), the steering device 100 further includes an audible indicator and / or a haptic indicator that functions exclusively from or in conjunction with the light element 104. The haptic indicator may, for example, include vibrators arranged on the steering handle 102 / on the steering device 100 such that the vibration of the steering handle 102 is felt by the driver in each grip position. The steering device 100 may be configured to command the operation of the vibrator in response to data received from the vehicle, data received from the steering handle 102, and / or input data received from the driver at the steering handle 102. The operation of the vibrator may, for example, include adjusting the frequency and intensity of the vibration generated.

[0042] It will be appreciated that the logical operation described herein, with respect to the various embodiments embodied, may be implemented (1) as a sequence of computer-implemented acts or program modules (i.e., software) executing in a computing device, (2) as an interconnected logical circuit of machines or circuit models (i.e., hardware) in the computing device, and / or (3) as a combination of software and hardware of the computing device. Therefore, the logical operations discussed herein are not limited to any specific combination of hardware and software. The implementation may be arbitrarily selected depending on the performance and other requirements of the computing device. Accordingly, the logical operations described herein will be interchangeably referred to as operations, structural devices, acts, or modules.These operations, structural devices, acts, and modules may be implemented in software, firmware, special-purpose digital logic units, and any combination thereof. Furthermore, it will be appreciated that more or fewer operations than those illustrated and described herein may be performed. Furthermore, these operations may be performed in different orders than those described herein.

[0043] If the logical operations described here are performed in software, the process can be executed on any type of computer architecture or platform. For example, the functions of the vehicle's PCB, processor, control circuitry, and control electronics, as described above, can be executed on any computer architecture or platform. An example in Fig. The embodiment illustrated in Figure 13 depicts an exemplary computing device in which embodiments of the invention may be employed. Computing device 1300 may include a bus or other communication mechanisms for communicating data among various components of computing device 1300. In its most basic configuration, computing device 1300 typically includes at least a processor 1306 and a system memory 1304. Depending on the precise configuration and type of computing device, system memory 1304 may be volatile (such as random access memory (RAM)), non-volatile (such as read-only memory (ROM), flash memory, etc.), or a combination of both. This most basic configuration is described in Fig. 13 with dashed line 1302. Processor 1306 may be a standard programmable processor that performs arithmetic and logical operations necessary for the operation of computing device 1300.

[0044] Computing device 1300 may have additional features / functionalities. For example, computing device 1300 may include additional memory such as removable storage 1308 and non-removable storage 1310, including, but not limited to, magnetic or optical disks or tapes. Furthermore, computing device 1300 may include network port(s) 1316 that enable the device to communicate with other devices. Computing device 1300 may also include input device(s) 1314, such as a keyboard, mouse, touchscreen, etc. Output devices 1312, such as a display, speakers, printer, etc., may also be included. The additional devices may be connected to the bus to enable communication of data among the components of computing device 1300.All these devices are well known in the art and need not be explained in detail here.

[0045] The processor 1306 may be configured to execute program code encoded in tangible, computer-readable media. Computer-readable media refers to any media that can provide data that causes the computing device 1300 (i.e., a machine) to function in a specific manner. Various computer-readable media may be used to provide instructions to the processor 1306 for execution. Common forms of computer-readable media include, for example, magnetic media, optical media, physical media, memory chips or cartridges, a carrier wave, or any other media that can be read by a computer. Example computer-readable media may include, but are not limited to, volatile media, non-volatile media, and transmission media. Volatile and non-volatile media may be implemented in any method or technology for storing the data, such as, for example,Computer-readable instructions, data structures, program modules, or other data may be used, and the common forms are explained in more detail below. The transmission media may be coaxial cable, copper wire, and / or fiber optic cable, as well as acoustic or light waves, such as those generated during radio waves and infrared data communications.Example tangible computer-readable recording media include, but are not limited to, an integrated circuit (e.g., field-programmable gate arrays or application-specific integrated circuits), a hard disk, an optical disk, a magneto-optical disk, a floppy disk, a magnetic tape, a holographic memory, a solid-state device, RAM, ROM, electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, a CD-ROM, digital multi-purpose (compact) discs (DVDs) or other optical storage media, magnetic cartridges, magnetic tape, magnetic disk storage, or other magnetic storage devices.

[0046] In an exemplary implementation, processor 1306 may execute program code stored in system memory 1304. For example, the bus may provide data to system memory 1304, from which processor 1306 receives and executes instructions. The data received from system memory 1304 may optionally be stored to removable storage 1308 or non-removable storage 1310 before or after execution by processor 1306.

[0047] Computing device 1300 typically includes a variety of computer-readable media. Computer-readable media may be any available media accessible by computing device 1300, including volatile and non-volatile media, as well as removable and non-removable media. Computer storage media may include volatile and non-volatile media, as well as removable and non-removable media, used in any method or technology for storing data, such as computer-readable instructions, data structures, program modules, or other data. System memory 1304, removable memory 1308, and non-removable memory 510 all represent examples of computer storage media.The computer storage media includes, but is not limited to, RAM, ROM, electrically erasable program read-only memory (EEPROM), flash memory or other storage technologies, CD-ROM, digital multi-purpose disk (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other media used to store the desired data that can be accessed by computing device 1300. Any of these computer storage media may be part of computing device 1300.

[0048] It should be noted that the various methods described herein may be used in conjunction with hardware or software, or, where appropriate, with a combination of hardware and software. Therefore, the methods and apparatus of the presently disclosed subject matter, or certain aspects thereof or portions thereof, may take the form of program code (i.e., instructions) embodied in tangible media, such as floppy disks, CD-ROMs, hard disks, or any other machine-readable storage media, in which, when the program code is loaded into and executed by a machine, that machine becomes a device for carrying out the presently disclosed subject matter.In the case of executing program code on more programmable computers, the computing device typically includes a processor, a processor-readable storage medium (including volatile and non-volatile memory and / or storage elements), at least one input device, and at least one output device. One or more programs may perform or implement the operations described in connection with the presently disclosed subject matter, for example, through the use of an application programming interface (API), multi-call controllers, or the like. These programs may be embodied in a procedural or object-oriented programming language for communicating with a high-level computing system. However, the program(s) may be embodied in assembly or machine language, if desired.In any case, the language can be a compiled or interpreted language that can be combined with hardware executions.

[0049] Fig. 14 shows a schematic illustration of an example computer architecture in which the invention may be implemented. Computing device 1400 may include a processing unit 1406 and a memory 1404. Memory 1404 may include various registers. Example registers may include an LED enable register, an LED location register, and an LED color register and intensity register. Computing device 1400 may include a light element driver for providing lighting instructions to light element 104.

[0050] Computing device 1400 may include a bus 1402 or other communication mechanisms for communicating data among various components of computing device 1400. In one exemplary implementation, bus 1402 may provide a communication link between computing device 1400 and the vehicle. In one exemplary implementation, bus 1402 may provide a communication link between computing device 1400 and various vehicle components. The data transmitted by bus 1402 may include, for example, lane departure warning signal data, GPS signal data, general warning signal data, and driving behavior indicator signal data.

[0051] An exemplary implementation may include a torsion spring 1408 connected to the processing unit 1406 and the bus 1402. The torsion spring 1408 may provide an electrical connection / communication link between the processing unit 1406 and other vehicle systems via a bus 1402 when the processing unit 1406 rests on the rotatable portion of the steering handle 102 / steering device 100. An exemplary torsion spring 1408 includes a rotary-type electrical connection that allows rotation of the steering handle 102 while maintaining electrical connection to the bus 1402. For example, the torsion spring 1408 may include a static element generally mounted on the steering column and a rotary element generally disposed on the steering handle 102.

[0052] The Fig. The embodiments illustrated in Figures 15-27 include a shaped lightbar warning system 204 as the light element. The shaped lightbar warning system 204 is located on the curved edge portion of a steering handle 102 of the steering device 100 in a vehicle. For example, Fig. 15, the shaped lightbar warning system 204, which is arranged in the upper center portion of a steering wheel of the vehicle. The lightbar warning system 204 is configured to communicate with the operator of the vehicle under one or more of the following conditions: whether an object is in a blind spot adjacent to the vehicle, whether the vehicle is approaching an object in front of the vehicle too quickly, whether the operator should turn the vehicle right or left, and / or whether the vehicle is deviating from its lane. In other embodiments, the lightbar warning system 204 may be configured to provide the vehicle operator with other data, as described above in connection with Fig. 1 to 14.

[0053] Fig. Figure 16 illustrates a perspective view of the molded lightbar warning system 204 according to one embodiment. The lightbar warning system 204 includes a liquid crystal display (LCD) 206, a light guide 208, and at least one light-emitting diode (LED) 210. The LCD 206 includes an outer surface 212, an inner surface 214, a first end 216, and a second end 218. The outer surface 212 and the inner surface 214 extend between the ends 216, 218, are arcuate, spaced apart, and opposed with respect to a plane extending through the ends 216, 218 and parallel to the outer and inner surfaces 214, 216.

[0054] In one embodiment, the LCD 206 is an enhanced black nematic (IBN) display that includes a plurality of electrical traces that define the portions of the display that can be selectively illuminated to communicate with the vehicle operator. The glass for the Fig. The IBN display shown in Figure 16 is normally black, but when the traces are turned on (power drawn), the portion of the glass adjacent to the traces becomes transparent to allow light to pass through that portion and outside the outer surface 214. In other embodiments (not shown), the LCD 206 may be any suitable type of LCD for communication with the operator.

[0055] In addition, the Fig. 16, the IBN display 206 has a chip-on-glass configuration, with an LCD driver that supplies power to the traces resting on the LCD glass. A processor in communication with the LCD driver is arranged adjacent to the LCD glass and is connected via a flexible wire ribbon 209 that is arranged between the LCD driver and the processor, as shown above. Fig. 13 and Fig. 14 is in communication with the LCD driver. In other embodiments, the processor may be separate from the processing unit 1406. In addition, the processor may be located on the warning system, as shown in Fig. 20 and described below, or on another portion of the rotating portion of the steering wheel. According to various embodiments, the processor controlling the LCD driver may also control the operation of the LEDs 210, or a separate processor may be provided to control the LCD driver and the LEDs 210. In some embodiments, the LEDs 210 are additionally turned off when the LCD 206 is turned off.

[0056] The Fig. The LCD 206 shown in Figures 15-20 includes three warning areas. The three warning areas include blind spot warning areas 219a, 219b adjacent to each end 216, 218 of the LCD 206, a lane departure warning area 221 adjacent to a central portion of the LCD 206, and forward collision / proximity warning areas 223a, 223b between the lane departure warning area 221 and the blind spot warning areas 219a, 219b. However, in alternative embodiments, the LCD may be configured to provide additional warnings to the vehicle operator and other occupants within the vehicle.

[0057] Each blind spot warning area 219a, 219b includes a vertically directed bar adjacent each end 216, 218 and an arrow inward of the vertically directed bar pointing toward the bar. The blind spot warning area 219a is illuminated in response to receiving data that one or more objects are located within a certain distance range on the left side of the vehicle, and the blind spot warning area 219b is illuminated in response to receiving data that one or more objects are located within a certain distance range on the right side of the vehicle. According to certain implementations, the blind spot warning areas 219a, 219b may be illuminated any time an object is located within the distance range on the respective side of the vehicle, or only when the vehicle moves toward the objects without activating the respective turn signal.Furthermore, the blind spot warning areas 219a, 219b can be illuminated in one or more colors, such as white, green, yellow, and / or red. According to certain embodiments, the blind spot warning areas 219a, 219b can also appear to flash to further attract the operator's attention.

[0058] The lane departure warning area 221 includes two trapezoidal areas that narrow in width toward the uppermost part of the lane departure warning area 221. Two arrows are located on one side of the trapezoidal areas and point inward toward the trapezoidal areas and toward each other. In response to receiving data that the vehicle is pulling to the left outside of its lane, the trapezoidal areas and the left arrow are illuminated. Similarly, the trapezoidal areas and the right arrow are illuminated in response to receiving data that the vehicle is pulling to the right outside of its lane. According to one implementation, the illumination control processor may illuminate the lane departure warning area 221 when the vehicle is pulling outside of its lane but the turn signal is not activated.

[0059] The forward collision / proximity warning areas 223a, 223b each include a set of three arcuate bars arranged vertically relative to each other. The lengths of the bars are staggered such that the bar closest to the hub of the steering wheel is the shortest, and the length of the bar farthest from the hub is the longest. For example, as the vehicle approaches an object in front of the vehicle, the two sets of bars begin to illuminate in order from the shortest bar to the longest bar. As another example, the processor controlling the illumination of the bars may illuminate one of the sets of bars as the vehicle approaches a curve corresponding to the side of the set of bars, with the bars being illuminated in order from shortest to longest. For example, the right set of bars may be illuminated as the vehicle approaches a right-hand curve.As another example, the bars can flash when the vehicle approaches a certain distance from a curve or an object in front of the vehicle that poses a risk. Furthermore, the bars can be illuminated in one or more colors to communicate with the operator. For example, the bars can be illuminated white or green to indicate an upcoming curve. Alternatively, the bottom bars can be illuminated yellow when a forward collision risk is initially detected, and the top bars can be illuminated red when the forward collision risk is within a certain distance from the vehicle.

[0060] In further embodiments (not shown), the warning areas described above can be displayed on an arc-shaped display of a different type, such as an arc-shaped OLED display.

[0061] The light guide 208, which is clearer in Fig. 19, includes an outer surface 220, an inner surface 222, a first end 224, and a second end 226. The outer surface 220 and the inner surface 222 extend between the two ends 224, 226, are arcuate, and are spaced apart and opposite each other with respect to a plane that extends through the ends 224, 226 and is parallel to the outer 220 and inner surfaces 222. The outer surface 220 of the light guide 208 is disposed adjacent to the inner surface 214 of the LCD 206, as shown in Fig. 17 and Fig. 18. The light guide 208 is configured to transmit light through at least a portion of its outer surface 220 to the inner surface 214 of the LCD 206 to illuminate the selected portions of the LCD 206. In the Fig. In the embodiment illustrated in Figures 16-20, the light guide 208 is configured for light transmission through the entire outer surface 220 of the light guide 208. Exemplary materials for use in the light guide 208 include polycarbonate, polycarbonate blends, acrylic, nylon, or other suitable materials.

[0062] The outer surface 220 of the light guide 208 may define a plurality of microlenses configured to direct the light of the light guide 208 exiting from the outer surface 220 for exit at an angle of approximately 90° from the outer surface 220. For example, the microlenses may include a plurality of V-shaped notches defined in the outer surface 220, a plurality of embossed or debossed radial notches defined in the outer surface 220, or a combination thereof. An exemplary portion of the outer surface 220 of the light guide 208 with the V-shaped notches 232 defined thereon is shown in Fig. 25. In other embodiments (not shown), the inner surface of the light guide 208 may define the microlenses. These microlenses may be in addition to, or alternatively to, the microlenses on the outer surface 220. In some embodiments, a light-diffusing film may additionally be applied to the outer surface 220 of the light guide 208 to prevent the microlenses from being visible to the vehicle operator.

[0063] The LEDs 210 are arranged adjacent to the first end 224 of the light guide 208 and emit light into the first end 224 of the light guide 208. For example, the LEDs 210 may be top-firing LEDs that rest on a surface 230 of the PCB 228, as shown in Fig. 19. The surface 230 of the PCB 228 on which the LEDs 210 rest is arranged at an angle of approximately 90° to the inner 222 and outer surfaces 220 of the light guide 208. However, in other embodiments, the LEDs may be side-firing and may be arranged at an alternative, suitable angle relative to the inner 222 and outer surfaces 220 of the light guide 208.

[0064] The Fig. 19 defines a recessed portion 233. The recessed portion 233 may be configured to fit adjacent to the frame 112 of the steering wheel. For example, the recessed portion 233 is as shown in Fig. 19, arcuate to fit a portion of the frame 112. In other embodiments (not shown), the recessed portion 233 may be configured to follow the profile of the frame 112. In other embodiments (not shown), the PCB 228 may be configured for coupling to the frame 112 or an intermediate structure using other suitable attachment mechanisms.

[0065] The lightbar warning system 204 may also include a tray 234 defining a channel. At least a portion of the channel may include a reflective surface. In particular, the channel defined by the tray 234 may include a floor 238 and sidewalls 240a, 240b. The floor 238 is arcuate, and the sidewalls 240a, 240b extend perpendicularly from each arcuate side of the floor 238. The inner surface 222 of the light guide 208 rests on the floor 238 between the sidewalls 240a, 240b, and the inner surface 214 of the LCD 206 rests on the outer surface 220 of the light guide 208 between the sidewalls 240a, 240b. The reflective surface is configured to reflect light into the light guide 208. For example, the reflective surface may reflect light that escaped the light guide 208 back into the light guide 208.The reflective surface may be a film, coating, paint, or other suitable material applied to the channel of the tray 234, or the reflective surface may be integrally molded with the tray 234. The reflective surface may additionally include a metallic color, a glossy surface, a textured surface, or some other suitable color or surface that is cosmetically pleasing when the light source is off. In some embodiments, the tray 234 may also include a third wall at a distal end 240c of the tray 234 extending from the floor 238 at an angle of approximately 90°, as shown in FIG. Fig. 19. Exemplary materials that may be used for the tray 234 include polycarbonate-acrylonitrile butadiene styrene (PC-ABS), nylon, polycarbonate, acrylostyrene-acrylonitrile-polycarbonate (ASA-PC), polypropylene (PP), or other suitable materials.

[0066] The light bar warning system 204 may also include a frame coupling member 242 configured to couple the tray 234 to the steering wheel frame 112. The frame coupling member 242 includes an inner 246 and outer 248 surface extending between a first end 250 and a second end 252 of the frame coupling member 242. The inner 246 and outer 248 surfaces are arcuate, opposite, and spaced apart from each other with respect to a plane extending between the first 250 and second ends 252 and parallel to the inner 246 and outer 248 surfaces. The tray 234 rests on the outer surface 248 of the frame coupling element 242 such that the channel faces away from the frame 112 of the steering wheel, and the inner surface 246 of the frame coupling element 242 is adjacent to and facing the frame 112. The first end 250 includes a mounting leg 254 extending from the inner surface 246 at an angle of approximately 90°.The mounting leg 254 defines a recessed portion 256 configured to receive at least a portion of the frame 112. For example, the recessed portion 256 may be arcuate, as shown in FIG. Fig. 19, or the recessed portion 256 may follow the profile of the frame. Additionally, the mounting leg 254 may define one or more projections 258 configured to receive fasteners for mating the mounting leg 254 of the tray 234 to the PCB 228. Further, the inner surface 246 of the frame coupling member 242 may include fastening mechanisms for securing the frame coupling member 242 to the frame 112. The fastening mechanisms may include, but are not limited to, one or more clips, one or more projections for receiving fasteners such as screws, bolts, or straps, or, for example, grooves / extended portions for engaging an adapter portion on the frame 112. Other methods for securing the frame coupling member 242 to the frame 112 may include adhesive, welding, or other suitable fastening methods.

[0067] The frame coupling member 242 may include a thermally conductive material such that the frame coupling member 242 may transfer heat from the PCB 228 and / or other components of the light bar warning system 204 to the frame 112.

[0068] In other embodiments (not shown), the light bar warning system 204 may not include the frame coupling member 242, and the tray 234 and / or the light guide 208 may be coupled to the frame 112 directly or indirectly by means of another structure.

[0069] Fig. 27 illustrates another embodiment of the tray 234'. In this embodiment, the tray 234' is coupled directly to the frame 112 without the need for a separate frame coupling element as described above. The second end 252' of the tray 234' includes a mounting leg 254'. In addition, the first end 250' of the tray 234' and the second end 252' each define an opening 292a, 292b. A mounting mechanism such as those described above can pass through the respective one of the openings 292a, 292b to couple the tray 234' to the frame 112. In the Fig. 27, the tray 234' additionally defines a slot 294 through which the PCB, such as that shown in Fig. 19 shown PCB 228 can be inserted.

[0070] The light bar warning system 204 may also include an outer lens coupled adjacent to the outer surface 212 of the LCD 206 to improve the robustness of the LCD 206. Fig. 21 illustrates an embodiment of the outer lens 260 according to the invention. The outer lens 260 defines a channel having a ceiling 262 and at least two sidewalls 264a, 264b extending away from the ceiling 262 and adjacent to the respective side of the ceiling 262. The ceiling 262 includes an inner surface 266 and an outer surface 268 that are arcuate, opposite, and spaced apart from each other with respect to a plane extending through a respective end of the outer lens 260. The sidewalls 264a, 264b extend from the inner surface 266 along each arcuate side of the inner surface 266 at an angle of approximately 90°. The sidewalls 264a, 264b are disposed adjacent to the sidewalls 240a, 240b, and the inner surface 266 is disposed adjacent to the outer surface 212 of the LCD 206. The outer lens 260 is transparent so that light from the LCD 206 can pass through it and be visible to the vehicle operator.Exemplary materials that may be used for the outer lens 260 include polycarbonate, polycarbonate blends, acrylic, nylon, or other suitable materials.

[0071] Furthermore, various fastening mechanisms may be used to secure the outer lens 260 relative to the light guide 208, including a friction fit, one or more clips, snap-fits, clamps, screws or bolts, welding, heat staking, or a combination thereof.

[0072] Fig. 24 illustrates an alternative embodiment of the light bar warning system 204, including one or more light-modifying films 280, such as the films 120, 122 described above, disposed between the outer lens 260 and the light guide 208. The light-modifying films 280 can be configured to diffuse, focus, block, partially block, enhance, or redirect light passing between the outer surface 220 of the light guide 208 and the inner surface 266 of the outer lens 260. For example, the films 280 can be applied to the inner surface 266 of the outer lens 260, the outer surface 264 of the outer lens 260, the outer surface 220 of the light guide 208, or a combination thereof.

[0073] In an alternative embodiment, for example, the lightbar warning system 204 may be configured without an LCD 206. In such an embodiment, the lightbar warning system 204 communicates with the vehicle operator via the light emitted by the light guide 208. This embodiment provides a simple, low-cost method for communicating with the operator.

[0074] In such an embodiment, a cap 295, as in Fig. 26A and Fig. 26B, disposed over the tray 234 and the light guide 208 and coupled to the tray 234 and / or the frame 112. Fig. 26A illustrates an inner surface 302 of the cap 295. As shown, the cap 295 has an upper edge 296 and a lower edge 297 that are arcuate and follow the curvature of the steering wheel between a first end 298 of the cap 295 and a second end 299 of the cap 295. The cap 295 defines an arcuate opening 290 in a centrally located portion of the cap 295. A lens 260' is disposed adjacent the opening 290. The lens 260' may be coupled to the inner surface 302 of the cap 295 by means of an adhesive 301 or other suitable attachment mechanism. As shown in Fig. As shown in Figure 26B, when the cap 295 is positioned over the tray 234 and the light guide 208, and its outer surface 303 faces the cabin of the vehicle, light from the light guide 208 is emitted through the lens 260' to create a narrow arcuate light beam. In embodiments where the cap 295 is opaque, light is emitted only from the lens 260'. However, at least a portion of the cap 295 may be translucent in other embodiments.

[0075] The cap 295 may have a curved or partially curved inner surface 302 and outer surface 303 to conform to the annular surface of some steering wheels. Additionally, the outer surface 303 of the cap 295 may be colored or covered with a material to match or conform to the skin of the steering wheel.

[0076] When the LEDs are not turned on, ambient light can enter the lens 260 and illuminate the reflective surface of the tray 234. To avoid such distraction and aesthetic discomfort, the tray 234 can be coated with a material such as a dark reflective material (e.g., metallic colored) or subjected to a surface treatment to provide a shiny or textured surface. Alternatively or additionally, the outer lens 260 can be tinted to reduce the transmittance of the lens 260, which can reduce the amount of ambient light entering the lens 260 and the light guide 208. Additionally, in some embodiments, the outer lens 260 and the cap 295 are integrally molded, and areas having different transmittances can be created using one or more light-altering films applied to the cap 295 (e.g.,by means of in-mold decoration (IMD) labeling or other suitable processes). Fig. 22 and Fig. 23 illustrate an alternative embodiment of the lightbar warning system 204, including a first set of LEDs 111' adjacent the first end 224 of the light guide 208 and a second set of LEDs 111 adjacent the second end 226 of the light guide 208. The LEDs 111', 111 emit light into the respective ends 224, 226 of the light guide 208.

[0077] In the above-described statements regarding Fig.15 to 25, the outer surfaces of various components of the lightbar warning system 204 are arcuate, such that the radius of curvature of these components is similar to the radius of curvature of the portion of the steering wheel upon which the lightbar warning system 204 rests, and the arcuate portions follow the arcuate portion of the frame 112. This can result in a more aesthetically pleasing appearance for the vehicle operator. Furthermore, by including the lightbar warning system 204 adjacent to the upper, center portion of the steering wheel, the lightbar warning system 204 is within the field of view of the vehicle operator while the vehicle operator is looking toward the front of the vehicle, thus providing a more effective and less intrusive method of communicating with the vehicle operator.

Claims

[1] Light bar system for a steering wheel of a vehicle comprising: a light guide (208) having an outer surface (220) and an inner surface (222), extending between a first end (224) and a second end (226) of the light guide (208), wherein the outer and inner surfaces (220, 222) of the light guide (208) are arcuate between the ends (224, 226) of the light guide (208) and are spaced opposite one another with respect to a plane, the plane extending through the first and second ends (224, 226) of the light guide (208) and being parallel to the outer and inner surfaces (220, 222) of the light guide (208), at least one light source disposed adjacent to the first end (224) of the light guide (208), the light source configured to emit light into the first end (224) of the light guide (208), the light guide (208) configured to transmit light from the light source through at least a portion of the outer surface (220) of the light guide (208); an outer lens (260) having an outer surface (264) and an inner surface (266) extending between a first end and a second end of the outer lens (260), the outer and inner surfaces (264, 266) of the outer lens (260) being arcuate between the ends of the outer lens (260), and are spaced opposite one another with respect to a plane, the plane extending through the first and second ends of the outer lens (260) and being parallel to the outer and inner surfaces (264, 266) of the outer lens (260), and the inner surface (266) of the outer lens (260) being disposed adjacent to the outer surface (220) of the light guide (208); and a liquid crystal display, LCD (206) having an outer surface (212) and an inner surface (214) extending between a first end (216) and a second end (218) of the LCD (206), wherein the outer and inner surfaces (212, 214) of the LCD (206) are arcuate between the ends (214, 216) of the LCD (206) and are spaced opposite one another with respect to a plane, the plane extending through the first and second ends (214, 216) of the LCD (206) and being parallel to the outer and inner surfaces (212, 214) of the LCD (206), and wherein the LCD (206) is disposed between the outer surface (220) of the light guide (208) and the inner surface (266) of the outer lens (260). [2] The light bar system of claim 1, wherein the LCD (206) is an enhanced black nematic, IBN, display. [3] The light bar system of claim 1, wherein the light source is a light emitting diode, LED (210). [4] The light bar system of claim 3, wherein the LED (210) is a top-firing LED. [5] The light bar system of claim 4, further comprising a printed circuit board, PCB (228), wherein the PCB (228) has a surface (230) on which the LED (210) rests, and wherein the surface (230) is arranged at a 90° angle to the outer and inner surfaces (220, 222) of the light guide (208). [6] The light bar system of claim 5, further comprising a computer processor configured for electrical communication with a driver of the LCD (206), the computer processor being supported on a rotatable portion of the steering wheel. [7] The light bar system of claim 6, wherein the computer processor is disposed adjacent to the LCD (206). [8] The light bar system of claim 6, wherein the driver of the LCD (206) rests on the LCD (206) in a chip-on-glass configuration. [9] The light bar system of claim 5, wherein the steering wheel comprises a frame (112) having a thermally conductive material and the PCB (228) is thermally coupled to the frame (112) such that heat is transferred away from the PCB (228) to the frame (112). [10] The light bar system of claim 9, wherein the PCB (228) is directly coupled to the frame (112). [11] The light bar system of claim 9, further comprising a frame coupling element (242) directly coupled to the PCB (228) and the frame (112), wherein at least a portion of the heat generated by the PCB (228) is transferred to the frame (112) through the frame coupling element (242). [12] The light bar system of claim 1, further comprising a computer processor configured for electrical communication with a driver of the LCD (206), the computer processor being supported on a rotatable portion of the steering wheel. [13] The light bar system of claim 12, wherein the computer processor is disposed adjacent to the LCD (206). [14] The light bar system of claim 1, wherein the light source is a first light source, further comprising a second light source disposed adjacent the second end (226) of the light guide (208), the second light source configured to emit light into the second end (226) of the light guide (208). [15] The light bar system of claim 1, further comprising a tray (234) disposed adjacent the inner surface (222) of the light guide (208), the tray (234) including a reflective surface configured to reflect the light into the light guide (208). [16] The light bar system of claim 15, wherein the tray (234) includes an arcuate bottom (238) and two side walls (240a, 240b) extending orthogonally away from the bottom (238) of the tray (234), and wherein the bottom (238) of the tray (234) is disposed adjacent to the inner surface (222) of the light guide (208). [17] The light bar system of claim 16, wherein the LCD (206) is disposed between the two side walls (240a, 240b) of the tray (234). [18] The light bar system of claim 1, wherein the outer surface (220) of the light guide (208) comprises a plurality of microlenses configured to direct the light emerging from the outer surface (220) of the light guide (208) such that the light emerges at a 90° angle from the outer surface (220). [19] The light bar system of claim 1, further comprising an arcuate transparent outer lens disposed adjacent the outer surface (212) of the LCD (206). [20] Light bar system according to claim 1, wherein the inner and outer surfaces (212, 214) of the LCD (206) and the light guide (208) have a radius of curvature which is a radius of curvature of an arcuate part of a frame (112) of the steering wheel, and wherein the LCD (206) and the light guide (208) are configured for coupling to the arcuate portion of the frame (112) such that the inner and outer surfaces (212, 214) of the LCD (206) and the light guide (208) follow the arcuate portion of the frame (112). [21] The light bar system of claim 20, wherein the LCD (206) and the light guide (208) are disposed within an arcuate tray (234), and wherein the arcuate tray (234) is coupled to the arcuate portion of the frame (112). [22] The light bar system of claim 21, further comprising a frame coupling member (242), wherein the shelf (234) is directly coupled to the frame coupling member (242), and wherein the frame coupling member (242) is directly coupled to the arcuate portion of the frame (112). [23] Light bar system for a steering wheel of a vehicle comprising: a light guide (208) having an outer surface (220) and an inner surface (222), extending between a first end (224) and a second end (226) of the light guide (208), the outer and inner surfaces (220, 222) of the light guide (208) being arcuate between the ends (224, 226) and spaced opposite one another with respect to a plane, the plane extending through the first and second ends (224, 226) of the light guide (208) and being parallel to the outer and inner surfaces (220, 222) of the light guide (208); at least one light source disposed adjacent to the first end (224) of the light guide (208), the light source configured to emit light into the first end (224) of the light guide (208), the light guide (208) configured to transmit light from the light source through at least a portion of the outer surface (220) of the light guide (208); an outer lens (260) having an outer surface (264) and an inner surface (266) extending between a first end and a second end of the outer lens (260), wherein the outer and inner surfaces (264, 266) of the outer lens (260) are arcuate between the ends of the outer lens (260) and are spaced opposite one another with respect to a plane, the plane extending through the first and second ends of the outer lens (260) and being parallel to the outer and inner surfaces (264, 266) of the outer lens (260), and wherein the inner surface of the outer lens (260) is disposed adjacent to the outer surface (220) of the light guide (208); and an outer cap having an outer surface and an inner surface extending between a first end and a second end of the outer cap, wherein the outer and inner surfaces of the outer cap are arcuate between the ends of the outer cap and are spaced opposite each other, wherein the inner surface of the outer cap is disposed adjacent to the outer surface (220) of the light guide (208), and wherein the outer cap defines an arcuate opening and the outer lens (260) is coupled to the outer cap adjacent to the opening. [24] The light bar system of claim 23, further comprising one or more light guide films disposed between the outer surface (220) of the light guide (208) and the inner surface (266) of the outer lens (260). [25] Light bar system according to claim 23, wherein the inner and outer surfaces of the outer lens (260) and the light guide (208) have a radius of curvature which is the radius of curvature of an arcuate part of a frame (112) of the steering wheel, and wherein the lens and the light guide (208) are configured for coupling to the arcuate part of the frame (112) such that the inner and outer surfaces of the outer lens (260) and the light guide (208) follow the arcuate part of the frame (112). [26] The light bar system of claim 25, wherein the arcuate portion of the frame (112) comprises a thermally conductive material and the light source is thermally coupled to the arcuate portion of the frame (112) such that the frame (112) transfers heat from the light source to the frame (112). [27] The light bar system of claim 25, wherein the light guide (208) is configured for light transmission throughout the entire outer surface (220) of the light guide (208). [28] The light bar system of claim 24, wherein the light source is a first light emitting diode, the light bar system further comprising a second light emitting diode disposed adjacent the second end (226) of the light guide (208), and wherein the second light emitting diode is configured to emit light into the second end (226) of the light guide (208).

Images