Electric balancing vehicle

Abstract

Various electric balance vehicles are described. In some embodiments, the vehicle has first and second housings with platforms that support a user's feet. The first and second housings can be rotatable relative to one another. The vehicle can have first and second wheel assemblies. A support member can extend within tapered portions of the first and second housings. In some embodiments, one of the first and second housings can rotate relative to the support member, and the other housing can be rotationally fixed relative to the support member. The vehicle can balance and provide locomotion to the user. The vehicle can be lightweight, compact, and / or have a low center of gravity.

Description

[Technical Field]

[0001] Related references Any application for which a foreign or domestic priority claim is identified in the Application Data Sheet filed with this application is incorporated herein by reference under 37 CFR 1.57. This application claims the benefit of U.S. Provisional Application No. 62 / 610,103, filed December 22, 2017, U.S. Provisional Application No. 62 / 628,789, filed February 9, 2018, and U.S. Provisional Application No. 62 / 629,884, filed February 13, 2018, each of which is incorporated herein by reference in its entirety.

[0002] Technical Field FIELD OF THE DISCLOSURE The present disclosure relates to personal mobility vehicles, such as two-wheeled electric balance vehicles. [Background technology]

[0003] Electric balancing vehicles, also known as self-balancing scooters or "hoverboards," can provide a portable, storable, and environmentally friendly means of transportation and entertainment. Summary of the Invention [Means for solving the problem]

[0004] Various electric balancing vehicles are described in this disclosure. In some embodiments, the vehicle can include a first foot rest and a second foot rest. The first foot rest can include a first housing and a first wheel assembly. The second foot rest can include a second housing and a second wheel assembly. The first wheel assembly can include a first wheel, a first motor disposed within the first wheel, and a first axle extending from the first wheel. The second wheel assembly can include a second wheel, a second motor disposed within the second wheel, and a second axle extending from the second wheel. In some embodiments, the vehicle can include a connecting member. The connecting member can have a first end and a second end. The first end of the connecting member can be disposed within the first housing, and the second end of the connecting member can be disposed within the second housing. In some embodiments, the first housing can include a first gap between the first end of the connecting member and the first wheel assembly. In some embodiments, the second housing can include a second gap between the second end of the connecting member and the second wheel assembly.

[0005] In some embodiments, the vehicle may include a first housing and a second housing. Each of the first and second housings may be configured to support a respective foot of the user. The second housing may be rotatable relative to the first housing. In some embodiments, the vehicle may include a first wheel assembly and a second wheel assembly. The first wheel assembly may include a first wheel, a first motor disposed within the first wheel, and a first axle extending from the first wheel. The second wheel assembly may include a second wheel, a second motor disposed within the second wheel, and a second axle extending from the second wheel. In some embodiments, the vehicle may include a support member connecting the first and second housings. In some embodiments, the vehicle may include a first controller that controls the first wheel assembly and a second controller that controls the second wheel assembly. In some embodiments, the vehicle may include a battery for powering the first and second controllers and the first and second motors. In some embodiments, the vehicle may include a first sensor and a second sensor. The first sensor may be mounted in the first housing. The second sensor may be mounted in the second housing. The first sensor can be configured to sense rotation of the first housing and generate a first sensed signal. The second sensor can be configured to sense rotation of the second housing and generate a second sensed signal. In some embodiments, the battery and the first controller can be disposed on a first side of the support member between the support member and the first axle. In some embodiments, the second controller can be disposed on a second side of the support member between the support member and the second axle.

[0006] According to some embodiments, the first gap can have a first length and the second gap can have a second length, the first length being greater than the second length. The first gap defines a space between the first end of the connecting member and the first axle. The second gap defines a space between the second end of the connecting member and the second axle.

[0007] According to some embodiments, the vehicle may include a battery and a controller secured within a first gap in a first housing.

[0008] According to some embodiments, the first housing may be rotatable relative to the second housing.

[0009] According to some embodiments, a connecting member connects the first and second housings.

[0010] According to some embodiments, the vehicle can include a first controller that controls the first wheel assembly, a second controller that controls the second wheel assembly, and a battery that powers the first and second controllers. The first and second controllers can be positioned on a central longitudinal axis of the first and second axles.

[0011] According to some embodiments, the first and second housings may include first and second platforms configured to support a user's feet and first and second fenders extending upward from the first and second platforms. When the platforms are parallel to the running surface, a clearance distance between the lower portions of the first and second housings and the running surface may be less than 2 inches.

[0012] According to some embodiments, the ratio between the length of the support member and the length of the vehicle may be about 0.2.

[0013] According to some embodiments, the central portion of the support member may be sleeve-shaped with a spacer.

[0014] According to some embodiments, the first controller can be secured to the first housing and the second controller can be secured to the second housing.

[0015] According to some embodiments, the battery may be disposed in an interior cavity of the first housing.

[0016] According to some embodiments, the first housing can include a first upper housing and a first lower housing, which can be fastened together to form an interior cavity of the first housing.

[0017] According to some embodiments, the second housing can include a second upper housing and a second lower housing, which can be fastened together to form an interior cavity of the second housing.

[0018] The foregoing summary is provided only as a high-level discussion of certain aspects of some embodiments within the scope of the present disclosure. The above summary, the following detailed description, and the associated drawings do not limit or define the scope of protection, which is defined by the claims.

[0019] Certain features, aspects, and advantages are described below with reference to drawings of exemplary embodiments. The drawings are intended to illustrate, not limit, the disclosure. Some embodiments do not include all of the features shown in the drawings. No feature is essential, critical, or essential. [Brief explanation of the drawings]

[0020] [Figure 1A] 1 is a perspective view of an embodiment of an electrically balanced vehicle; [Figure 1B] FIG. 1B is an exploded view of the electrically balanced vehicle of FIG. 1A. [Figure 1C] FIG. 1B is an exploded view of the electrically balanced vehicle of FIG. 1A. [Figure 2] FIG. 1B is a front view of the electrically balanced vehicle of FIG. 1A. [Figure 3] FIG. 1B is a rear view of the electrically balanced vehicle of FIG. 1A. [Figure 4]FIG. 1B is a side view of the electrically balanced vehicle of FIG. 1A. [Figure 5] FIG. 1B is a side view of the electrically balanced vehicle of FIG. 1A. [Figure 6] FIG. 1B is a top view of the electric balancing vehicle of FIG. 1A. [Figure 7] FIG. 1B is a bottom view of the electrically balanced vehicle of FIG. 1A. [Figure 8] FIG. 1B is a perspective view of a portion of the electrically balanced vehicle of FIG. 1A. [Figure 9] FIG. 1B is a perspective view of a portion of the electrically balanced vehicle of FIG. 1A. [Figure 10] 7 is a cross-sectional view of the electric balancing vehicle of FIG. 1A taken along the cutting line shown in FIG. 6. DETAILED DESCRIPTION OF THE INVENTION

[0021] Various embodiments of an electrically balanced vehicle are described. While particular embodiments of an electrically balanced vehicle are described, the present disclosure is not limited to these embodiments. On the contrary, the described embodiments are merely exemplary. The present disclosure also covers alternatives, modifications, and equivalents. Furthermore, in the following description, numerous specific details are set forth to provide a thorough understanding of the disclosed technology to those skilled in the art. However, embodiments may be practiced without these specific details.

[0022] In some embodiments, the electric balancing vehicle 100 may be small and / or compact. The electric balancing vehicle 100 may be lightweight (e.g., less than 15 pounds). The electric balancing vehicle 100 may be less than approximately 16 pounds. The electric balancing vehicle 100 may be approximately 11.5 pounds. The electric balancing vehicle 100 may be approximately 10 to 15 pounds. In various embodiments, the electric balancing vehicle 100 is easily portable. In some embodiments, the electric balancing vehicle 100 may be carried in or secured to a carry bag or case. For example, in some variations, the electric balancing vehicle 100 may be carried in or secured to a standard backpack. In various embodiments, the electric balancing vehicle 100 may be stored in a small space. For example, in some embodiments, the electric balancing vehicle 100 may be stored in a locker.

[0023] 1A to 7 show an electric balancing vehicle 100. The electric balancing vehicle 100 includes a first wheel assembly 110 and a second wheel assembly 120 at opposite ends of the electric balancing vehicle 100. The first wheel assembly 110 may include a first wheel 111. The second wheel assembly 120 may include a second wheel 121. As shown, a first housing 130 and a second housing 140 may be disposed between the first and second wheel assemblies 110 and 120. The electric balancing vehicle 100 may include a deck for a user to stand on. The first and second housings 130 and 140 may include platforms 132 and 142, respectively. The platforms 132 and 142 may be disposed on top of the deck and configured to support a user so that the user can place their feet on the platforms 132 and 142, respectively. The width of the platforms 132 and 142 is approximately 135 mm to 175 mm. In some embodiments, the width of the platforms 132, 142 is approximately 170 mm. In some embodiments, the width of the platforms 132, 142 is approximately 140 mm. In some embodiments, the width of the platforms 132, 142 is less than 150 mm. In some embodiments, the underside of the deck and / or the housings 130, 140 can be configured to keep particles (e.g., rocks, twigs, etc.) away from the housings 130, 140. This can reduce or prevent external elements from interfering with the proper functioning of the electric balancing vehicle 100. The first housing 130 and the second housing 140 can be rotatable relative to each other. In some embodiments, the operator can control the electric balancing vehicle 100 by rotating the platforms 132, 142 during use. The platforms 132, 142 can include non-slip surfaces 133, 143 (e.g., textured rubber or silicone pads) to allow a user to maintain their feet on the platforms 132, 142.

[0024] In some embodiments, one or both of the first wheel assembly 110 and the second wheel assembly 120 include a drive motor (not shown) and / or a brake (not shown). The motor (e.g., a hub motor) and / or brake can be disposed within the wheel 111, 121. Various types of motors are contemplated, such as those described in U.S. Patent No. 9,638,285, issued May 2, 2017, which is incorporated herein by reference in its entirety. In some embodiments, each wheel 111, 121 includes a motor and / or brake. For example, in some embodiments, the first wheel 111 includes a first motor and the second wheel 121 includes a second motor. Each motor can be disposed entirely within the wheel 111, 121 without extending into the internal cavities 137, 147 of the housings 130, 140. For example, in some embodiments, each motor includes a stator and a rotor, with the entire rotor and / or the entire stator disposed within a respective one of the wheels 111, 121. In certain embodiments, the motors for the wheels 111, 121 are not located within and / or included in the housings 130, 140. Mounting the motors in the wheels can, for example, lower the height of the vehicle 100, reduce the number of components within the housings 130, 140, allow the housings 130, 140 to be vertically thinner (compared to vehicles with motors within the housings), and facilitate motor repair and / or replacement. In some implementations, the wheels and the motors included therein are easily interchangeable. This allows, for example, a user to select different motor and wheel combinations to accommodate a particular type of vehicle riding (e.g., a first type of motor and wheel for sport riding and a second type of motor and wheel for long-distance riding).

[0025] In some embodiments, the motor can have different modes. For example, the motor can have a high torque mode in which the torque is increased by 5% to 15%. In some variations, the motor can have a quiet mode in which the maximum speed is reduced, reducing the amount of noise produced by the vehicle 100.

[0026] The wheels 111, 121 can be the same or similar size as wheels on a conventional skateboard or longboard, or can be larger. The diameter of the wheels 111, 121 can be approximately 83 mm. In some embodiments, the diameter of the wheels 111, 121 can be less than approximately 150 mm, less than approximately 100 mm, and / or less than approximately 90 mm. In some embodiments, the wheels 111, 121 can be made from polyurethane, rubber, plastic, or other suitable materials. In some embodiments, the diameter of the wheel assemblies 110, 120 is less than the width of the platforms 132, 142 and / or fenders 134, 144. In some embodiments, the diameter of the wheel assemblies 110, 120 is less than the width of the battery 270 and / or controllers 272, 274. In some embodiments, as shown, the tops of the wheel assemblies 110, 120 are higher (e.g., about 20 mm higher) than the platforms 132, 142, respectively. In some embodiments, the tops of the wheel assemblies 110, 120 may be flush with the platforms 132, 142.

[0027] The wheel assemblies 110, 120 may include tires (e.g., rubber tires) mounted on the outside of the rims. Vehicles with tires having a generally rectangular front-to-rear profile may struggle to maintain consistent contact with the ground as the vehicle turns or turns, potentially reducing the vehicle's stability and traction and otherwise impacting the user's ride comfort. In some embodiments, as shown in FIG. 3 , the tire sidewalls, or front and rear profiles, are rounded, curved, and / or curved, with an apex at the center of each tire (e.g., axis C, an axis extending vertically through the center of the front and rear faces of the tire, intersects the ground during use of the vehicle 100). The curved profile of the tire may be substantially continuous and / or smooth between the axial ends of the tire (e.g., from the end of the tire to the side of axis C). In some embodiments, the electrically balanced vehicle 100 is configured to maintain substantially the same amount of tire surface area in contact with the ground and / or substantially the same amount of traction during normal operation of the vehicle 100 (e.g., when the vehicle turns). This differs from vehicles with flat tires (e.g., tires with more rectangular front and rear profiles), which have less contact with the ground and change their riding characteristics (e.g., traction) as the vehicle bends and / or turns.

[0028] In some embodiments, the tires and / or wheels 111, 121 can have generally square front and rear profiles. In some embodiments, the ratio of width to diameter and / or height of the tires and / or wheels 111, 121 can be approximately 0.4 to 1.0. The ratio of width to diameter of the wheels 111, 121 can be approximately 0.6. Tires and / or wheels 111, 121 with generally square front and rear profiles (e.g., wheels 111, 121 having a width that is at least 50% of their diameter) can contribute to the stability of the vehicle 100, increase the amount of surface area of ​​the tire that contacts the ground during operation of the vehicle 100, improve traction of the vehicle 100, and / or allow a motor to fit within the wheels 111, 121.

[0029] The electrically balanced vehicle 100 may include any feature or combination of features of the vehicle described in Application No. 15 / 941,505, filed March 30, 2018, which is incorporated herein by reference in its entirety.

[0030] In some embodiments, the electric balancing vehicle 100 is configured to rest low to the ground and have a low center of gravity. This allows the user to have more control over the vehicle 100 and / or experience a safer ride (e.g., to reduce the risk of injury). In some embodiments, when the platforms 132, 142 are parallel to the riding surface, the clearance distance or clearance between the riding surface (e.g., the ground) and the underside or bottom of the housings 130, 140 can be approximately 20 mm. In some embodiments, the clearance distance can be approximately 0.5 inches to 3 inches. In particular embodiments, the vehicle 100 is substantially longer than it is high. For example, in some embodiments, the ratio of the overall length of the vehicle 100 (measured along the longitudinal axis) to the overall height of the vehicle 100 (measured from the bottom of one of the wheels 111, 121 to the top of the corresponding fender 134, 144) is at least approximately 4:1, 5:1, 6:1, 7:1, 8:1, etc. 2, in certain variations, the axial thickness (measured along the longitudinal axis of the vehicle 100) of the wheels 111, 121 is the same as or similar (e.g., within + / - 10%) to the vertical thickness of the corresponding housings 130, 140. In some implementations, the ratio of the diameter of the wheels 111, 121 to the vertical thickness of the corresponding housings 130, 140 is equal to or less than about 3:1, 2:1, 1.8:1, 1.5:1, etc. The thickness of the housings 130, 140 can be measured at the thickest portion of the housings 130, 140 where a user normally places their feet (e.g., at the location of the non-skid surfaces 133, 143).

[0031] In some embodiments, the first and second housings 130, 140 each include a tapered region 131, 141. The tapered regions 131, 141 can terminate in a neck or central region 170. The central region 170 can include a spacer 160. The spacer 160 can be disposed between the first housing 130 and the second housing 140. In some embodiments, the tapered regions 131, 141 have a substantially or completely circular axial cross-section at the central region 170. In some embodiments, there is substantially no gap or protrusion between the first housing 130 and the second housing 140 during rotation of the first housing 130 relative to the second housing 140, and / or vice versa. In some embodiments, the periphery of the tapered regions 131, 141 is configured to be grippable by a user's hand for lifting and carrying the electric balancing vehicle 100. For example, in some embodiments, the diameter of the regions 131, 141 is approximately 1 to 3 inches. In some embodiments, the first and second housings 130, 140 are generally laterally symmetrical about the central region 170, as shown in FIGS. 1A and 2.

[0032] In some embodiments, the tapered regions 131, 141 taper to a neck having a minimum diameter at the central region 170. The minimum diameter can be significantly less than the outer fore-to-aft width of the platforms 132, 142, such as at their intersections with the fender portions 134, 144. For example, the ratio of the minimum diameter of the neck to the outer width of the platforms 132, 142 is less than or equal to about 0.5, 0.33, 0.25, 0.20, any ratio between the aforementioned ratios, or other ratios. In some embodiments, the ratio of the diameter of the central region 170 to the thickness of the housing 130, 140 can be between about 0.5 and 0.95.

[0033] The first and second housings 130, 140 may include fender portions 134, 144. The fender portions 134, 144 may extend upward (e.g., vertically) from and / or relative to the platforms 132, 142. The fender portions 134, 144 may provide a barrier between the platforms 132, 142 and the wheel assemblies 110, 120. In some embodiments, the fenders 134, 144 may include a lip that at least partially encases or shields the wheels 111, 121 of the wheel assemblies 110, 120, respectively. For example, as shown, the lip may extend laterally outward beyond a portion of the wheels 111, 121. In some embodiments, the fender portions 134, 144 may extend across approximately 40% to 90% of the width of the wheels 111, 121. Extending the fender portions 134, 144 over the wheels 111, 121 can reduce or minimize the amount of material (e.g., rocks, debris, water, etc.) that is propelled toward the user by the rotation of the wheels 111, 121. The powered balancing vehicle 100 can include a gap between the fender portions 134, 144 and the wheels 111, 121.

[0034] The electric balancing vehicle 100 may include electrical controls and interfaces. For example, as shown in FIG. 3 , the electric balancing vehicle 100 may have a power switch 150 and / or a charging interface 154. The power switch 150 and the charging interface 154 may be located on either the first or second housing 130, 140. In some embodiments, the power switch 150 is located on the first housing 130 and the charging interface 154 is located on the second housing 140, or vice versa. The power switch 150 may be configured to turn the electric balancing vehicle 100 on and off. The charging interface 154 may be configured to provide electrical power input, such as for charging a power source (e.g., battery 270) of the electric balancing vehicle 100. The power switch 150 and / or the charging interface 154 may extend through an outer wall of the first and / or second housing 130, 140. In some embodiments, the electric balancing vehicle 100 may include a power meter or electrical status indicator. For example, the indicator may be one or more lights (e.g., LEDs). The lights may be positioned and / or colored to indicate the charge state and / or power level of the electrically balanced vehicle 100 .

[0035] The first and second housings 130, 140 can include decorations that can be of different shapes and sizes. For example, the housings 130, 140 can include decorations 205, such as headlights and / or light strips. In some embodiments, the first and second housings 130, 140 are plastic. For example, the housings 130, 140 can be manufactured from injection-molded hard plastic.

[0036] The first housing 130 can include an upper housing 136 and a lower housing 138. The upper housing 136 and the lower housing 138 can be coupled to enclose or partially enclose an interior space or cavity 137 (see FIG. 8 ). In some embodiments, the upper housing 136 abuts and / or is fastened (e.g., with screws, bolts, rivets, hooks, or other methods) to the lower housing 138. When assembled, the first housing 130 formed by the upper and lower housings 136, 138 can have the appearance of a unitary body. In some embodiments, the upper housing 136 and the lower housing 138 can be connected to each other with multiple fasteners, such as screws or bolts. For example, screws can extend from the underside of the lower housing 138 and into the upper housing 136. In some embodiments, the upper housing 136 is coupled to the lower housing 138 with corresponding fastening stems 239 extending from the upper and / or lower housings 136, 138. In some embodiments, the clamping stem 239 can be an interlocking mechanism that can provide structural support to the upper and lower housings 136, 138.

[0037] The second housing 140 can include an upper housing 146 and a lower housing 148 that can be coupled together to enclose an interior space or cavity 147. In some embodiments, the upper housing 146 and the lower housing 148 are connected to one another with fasteners, such as screws or bolts, or corresponding fastening stems 239 extending from the upper and / or lower housings 146, 148. In some embodiments, the fastening stems 239 can be interlocking mechanisms that can provide structural support to the upper and lower housings 146, 148. When assembled, the second housing 140 formed by the upper and lower housings 146, 148 can have the appearance of a unitary body.

[0038] As shown in FIG. 8 , the electric balancing vehicle 100 may include a connecting or support member 162. The support member 162 may be configured to support and / or connect the housings 130, 140. In some embodiments, the support member 162 may have a small diameter, be lightweight, and / or be easy to manufacture. The platforms 132, 142 may be disposed above and / or in contact (e.g., directly or indirectly) with the support member 162. The support member 162 may be partially or entirely disposed within the internal cavities 137, 147 of the housings 130, 140. In some embodiments, the support member 162 is a tubular member, pipe, bar, or other elongated structure. In some embodiments, the support member 162 may be coupled to one or both of the wheels 111, 121.

[0039] As shown, the length of the support member 162 can be shorter than the overall length of the electrically balanced vehicle 100. For example, the support member 162 can occupy the space within the tapered regions 131, 141 of the housings 130, 140, but not within the majority of the length of the housings 130, 140. In some embodiments, the support member 162 is asymmetrical with respect to the center of the vehicle 100. For example, in some embodiments, the portion of the support member 162 that extends into the first housing 130 is shorter than the portion of the support member 162 that extends into the second housing 140. In some embodiments, approximately 30% to 40% of the length of the support member 162 can extend into one of the first and second housings 130, 140, and approximately 60% to 70% of the length of the support member 162 can extend into the other of the first and second housings 130, 140. In some embodiments, the support member 162 does not extend along the entire length of the housings 130, 140. For example, in some embodiments, the support member 162 does not extend below the platforms 132, 142. A short support member 162 can create space for other components in the interior cavities 137, 147 of the housings 130, 140 and / or make the electric balancing vehicle 100 smaller, more portable, and / or lighter, as described in more detail below. In some embodiments, the ratio of the length of the support member 162 to the overall length of the electric balancing vehicle 100 (including the first and second wheel assemblies 110, 120) is approximately 0.2. In some embodiments, the ratio of the length of the support member 162 to the overall length of the vehicle 100 is between 0.1 and 0.3. The overall length of the vehicle 100 can be approximately 490 mm. In some embodiments, the overall length of the vehicle 100 can be less than 550 mm, less than 500 mm, etc.

[0040] The support member 162 can be continuous (e.g., without interruptions or gaps) from end to end. In some embodiments, the support member 162 can extend substantially completely between the first and second wheel assemblies 110, 120. In some embodiments, the support member 162 can be configured to support a user's weight, such as transferring a rider's weight between the housings 130, 140. In some variations, during normal operation of the vehicle 100, the support member 162 is configured to not bend (appreciably to a user) at the longitudinal midpoint of the support member 162. The support member 162 can be made from steel tubing or bar. The support member 162 can be made from an alloy, such as an aluminum alloy. The support member 162 can be processed through a drawing process that imparts increased strength and / or toughness.

[0041] In some implementations, the support member 162 can extend through portions of both the first and second housings 130, 140 and the central region 170 and the tapered regions 131, 141. The weight of a user on the platform 132, 142 can be at least partially distributed throughout the length of the support member 162. Another advantage of the small diameter / volume of the support member 162 is that it can take up a small amount of space within the internal cavities 137, 147 of the first and second housings 130, 140. This allows additional components, such as a larger capacity battery, to be placed within either or both of the internal cavities 137, 147.

[0042] As shown in FIGS. 1B and 8 , the support member 162 is coupled to the spacer 160. The spacer 160 may extend generally radially outward from the support member 162. The spacer 160 may be disposed and / or extend between the first and second housings 130, 140. In some embodiments, the spacer 160 may provide a reduced-friction sliding surface for relative rotation between the first and second housings 130, 140. The spacer 160 may be configured to substantially separate the first housing 130 and the second housing 140. For example, the spacer 160 may reduce or prevent movement or vibration from one housing from being transmitted to the other housing. The spacer 160 may be assembled onto the support member 162 by sliding the spacer 160 axially onto the support member 162. In some embodiments, the axial position of the spacer 160 relative to the support member 162 may be adjusted as needed during assembly of the electric balancing vehicle 100. In some embodiments, the spacer 160 and the support member 162 are integrally formed. In some embodiments, the spacers 160 may be made from a different material than the material of the support members 162 and / or the material of the spacers 160 may be coordinated with the color design of the electric balancing vehicle 100 .

[0043] The spacer 160 may include channels configured to allow wiring to extend from the internal cavity of one housing to the internal cavity of the other housing without being compressed or damaged by the rotating elements of the electric balancing vehicle 100.

[0044] The electric vehicle 100 may include a power source, such as a battery 270. In some embodiments, the battery 270 may be a 22V lithium-ion battery. The battery 270 may be located in any portion of or within the electric vehicle 100. For example, as shown, the battery 270 may be configured to be located within the interior cavity 147 of the second housing 140. In some embodiments, the battery 270 may be located within the interior cavity 137 of the first housing 130. In some embodiments, both the first and second housings 130, 140 include batteries, thereby increasing the power capacity and improving the range and cruising capabilities of the electric vehicle 100. In some embodiments, the battery 270 may be located above the wheels 111, 121 of the electric vehicle 100. In some embodiments, the battery 270 may be located laterally between the wheels 111, 121, such as generally in the center of the electric vehicle 100. In some embodiments, the battery 270 may be located against the flange or fender portions 134, 144 of the electric vehicle 100.

[0045] In some embodiments, the electric balancing vehicle 100 includes a control circuit. The electric balancing vehicle 100 may include one or more controllers. For example, the electric balancing vehicle 100 may include a first controller 272 and a second controller 274 for controlling and operating the movement of the electric balancing vehicle 100. In some embodiments, one controller may be configured to control each of the two wheel assemblies 110, 120 of the electric balancing vehicle 100. For example, in some embodiments, the electric balancing vehicle 100 may include a single controller having similar functions as the first and second controllers 272, 274 disposed within a single housing. In the illustrated embodiment, the first controller 272 is configured to control the first wheel assembly 110, and the second controller 274 is configured to control the second wheel assembly 120. The first and second controllers 272, 274 may be configured to operate and / or power the corresponding drive motors of the first and second wheel assemblies 110, 120. Power and / or signal conductors (e.g., electrical cables) extend between the first wheel assembly 110, the battery 270, and the first controller 272, and / or between the second wheel assembly 120, the battery 270, and the second controller 274. In some embodiments, power and / or signal cables may extend between the first and second controllers 272, 274, such as to coordinate control of the first and second wheel assemblies 110, 120.

[0046] In some embodiments, the interior cavities 137, 147 of the housings 130, 140 can include one or more chambers or compartments configured to support the battery 270, the controllers 272, 274, and / or other components.

[0047] The electrically balanced vehicle 100 may include one or more inertial sensors (e.g., gyroscopes and / or accelerometers) for sensing rotation of the first and second housings 130, 140. A group of two or more inertial sensors may be provided on each of the first and second housings 130, 140. In some embodiments, the inertial sensors are on the same circuit board as the controllers 272, 274.

[0048] The controllers 272, 274 can receive data signals from the inertial sensors. As described further below, the data signals from the inertial sensors can be used to control the rotation of the first and second wheel assemblies 110, 120. Each of the first and second controllers 272, 274 can be communicatively coupled to a set or a single inertial sensor and can operate according to the data signals from the set or single inertial sensor.

[0049] The first and second controllers 272, 274 can be connected to either the upper or lower housing of the housings 130, 140, respectively. In some embodiments, the first and second controllers 272, 274 can be housed in respective controller housings 372, 374. In some embodiments, the controllers can be located on one side of the electric balancing vehicle 100, and the battery 270 can be located on the opposite side of the electric balancing vehicle 100. As shown, in some embodiments, one of the battery 270 and the controllers 272, 274 can be located on one side of the support member 162, and the other of the controllers 272, 274 can be located on the other side of the support member 162. The battery 270 and one of the controllers 272, 274 can be located between the support member 162 and the axle 114 or between the support member 162 and the axle 124. In some embodiments, the battery 270 and one of the controllers 272, 274 can be stacked within the first or second housing 130, 140 (eg, on the side of the support member 162).

[0050] In some embodiments, the electric balancing vehicle 100 can be configured such that the motor control and / or power supply components of the electric balancing vehicle 100 are not located under the deck and / or housing 130 / 140. For example, in some variations, the battery 270 and controllers 272, 274 are not located under the user's feet. In some embodiments, the battery 270 and / or one or more controllers 272, 274 are located outside the interior spaces 137, 147 of the fenders 134, 144, etc.

[0051] In some embodiments, at least one of the housings 130, 140 can rotate relative to the support member 162. For example, one of the housings 130, 140 can be configured to rotate relative to the support member 162, and one of the housings 130, 140 can be rotationally fixed relative to the support member 162.

[0052] During use of the electric balancing vehicle 100, the user's feet can rest on the platform 132 of the first housing 130 and the platform 142 of the second housing 140, respectively. The first housing 130 can be rotatable relative to the second housing 140. Changes in the user's foot position and / or center of gravity while standing on the electric balancing vehicle 100 can cause the housings 130, 140 to rotate relative to each other and / or relative to the ground. For example, the user can shift their center of gravity to rotate the second housing 140. Alternatively, the user can articulate their feet to rotate the second housing 140. The second housing 140 can rotate relative to the first housing 130 and / or the support member 162.

[0053] An inertial sensor associated with the second housing 140 can transmit a data signal to the controller 274 indicative of the rotation of the second housing 140. The data signal can include, for example, data indicative of the amount or angle of rotation of the second housing 140 relative to a horizontal reference point, the ground, the support member 162, the wheel assembly 120, and / or the first housing 130. Based on the data signal from the inertial sensor, the controller 274 can provide a control signal including instructions and power to operate the wheel assembly 120. The control signal can operate the second wheel assembly 120 by providing power from the battery 270 to accelerate the rotation of the wheels 121 of the wheel assembly 120, decelerate the rotation of the wheels 121 of the wheel assembly 120, and / or maintain the speed or position of the wheel assembly 120. The control signal can be in the form of, for example, pulse width modulation (PWM).

[0054] In some embodiments of the electrically balanced vehicle 100, when the inertial sensor detects that the second housing 140 is rotated in a forward direction, the inertial sensor can send a data signal indicative of the forward rotation to the controller 274, and the controller 274 can send a control signal to the second wheel assembly 120 to accelerate the wheel 121 forward. In some embodiments of the electrically balanced vehicle 100, when the inertial sensor detects that the second housing 140 is rotated in a reverse direction, the inertial sensor can send a data signal indicative of the reverse rotation to the controller 274, and the controller 274 can send a control signal to the second wheel assembly 120 to accelerate the wheel 121 backward. In some embodiments, the controller 274 can provide power to the second wheel assembly 120 to maintain an upright position or otherwise provide balance to the second housing 140.

[0055] Changes in the foot position and / or center of gravity of a user standing on the electric balancing vehicle 100 can cause the first housing 130 to rotate relative to each other and / or relative to the ground. For example, the user can rotate the first housing 130 by shifting their weight or center of gravity. Alternatively, the user can rotate the first housing 130 by rotating their feet. The first housing 130 can be fixed relative to the second housing 140 and / or the support member 162.

[0056] An inertial sensor associated with the first housing 130 can transmit a data signal to the controller 272 indicative of the rotation of the first housing 130. The data signal can include, for example, data indicative of the amount or angle of rotation of the first housing 130 relative to a horizontal reference point, the ground surface, the support member 162, the wheel assembly 120, and / or the second housing 140. Based on the data signal from the inertial sensor, the controller 272 can provide a control signal including instructions and / or power to operate the first wheel assembly 110. The control signal can operate the first wheel assembly 110 by providing power from the battery 270 to accelerate the rotation of the wheels 111 of the wheel assembly 110, decelerate the rotation of the wheels 111, and / or maintain the speed or position of the wheels 111. The control signal can be in the form of, for example, PWM.

[0057] In some embodiments of the electrically balanced vehicle 100, when the inertial sensor detects that the first housing 130 is rotated in a forward direction, the inertial sensor can send a data signal indicative of the forward rotation to the controller 272, and the controller 272 can send a control signal to accelerate the first wheel assembly 110 forward. In some embodiments, when the inertial sensor detects that the first housing 130 is rotated in a reverse direction, the inertial sensor can send a data signal to the controller 272, and the controller 272 can send a control signal to accelerate the first wheel assembly 110 in the reverse direction. In some embodiments, the controller 272 can provide power to the first wheel assembly 110 to maintain an upright position or otherwise provide balance to the first housing 130.

[0058] The axle 114 of the first wheel assembly 110 can extend from the wheel 111. The axle 114 can extend from under a portion of the platform 132 to under at least a portion of the fender 134. The ratio of the length of the axle 114 to the overall length of the electric balancing vehicle 100 can be approximately 0.1 or less. In some embodiments, a short axle 114 can leave space within the interior cavity 137 of the housing 130 for other components and / or reduce the weight of the electric balancing vehicle 100. The axle 114 corresponds to a rotating shaft of a drive motor of the first wheel assembly 110. The rotating shaft can be disposed within a stator (not shown) of the drive motor within the rim of the wheel 111. In some embodiments, the rotating shaft of the drive motor is mounted inside the wheel 111, and the stator is provided in a corresponding housing or otherwise outside the wheel 111, and the rotating shaft is coupled to the wheel 111. The axle 114 can be fixedly connected to the housing 130, such as by a housing-based connection mechanism 116 (see FIG. 9 ). For example, axle 114 can be configured to receive a fastener, such as a bolt, that extends through connection mechanism 116. In various embodiments, axle 114 remains rotationally fixed relative to housing 130, and wheel 111 is rotatable relative to housing 130.

[0059] The axle 124 of the second wheel assembly 120 may extend from the wheel 121. The axle 124 may extend from under a portion of the platform 142 to under at least a portion of the fender 144. The ratio of the length of the axle 124 to the overall length of the electric balancing vehicle 100 may be approximately 0.1 or less. In some embodiments, a short axle 124 may leave space within the interior cavity 147 of the housing 140 for other components and / or reduce the weight of the electric balancing vehicle 100. The axle 124 may correspond to a rotational shaft of a drive motor of the second wheel assembly 120. The axle 124 may extend from a stator (not shown) of the drive motor within the rim of the wheel 121. The axle 124 may be fixedly connected to the housing 140 by a housing-based connection mechanism 126 (see FIG. 9 ), for example. For example, the axle 124 may be configured to receive a fastener, such as a bolt, extending through the connection mechanism 126. In various embodiments, the axle 124 remains rotationally fixed relative to the housing 140 and the wheel 121 is rotatable relative to the housing 140 .

[0060] In some embodiments, as shown in FIG. 10 , the axis (axis B) extending longitudinally through the center of the axles 114, 124 can be positioned lower than the axis (axis A) extending longitudinally through the center of the support member 162. This can contribute to a low center of gravity and / or an electric balancing vehicle 100 with a short distance between the bottom of the housings 130, 140 and the ground or riding surface. In some embodiments, the central longitudinal axis (axis A) of the support member 162 intersects at least a portion of each of the battery 270 and the controllers 272, 274. In some embodiments, the battery 270 and / or the controllers 272, 274 are positioned entirely on the central longitudinal axis (axis A) of the support member 162 and / or the central longitudinal axis (axis B) of the axles 114, 124. For example, as shown, in some embodiments, the controllers 272, 274 are positioned entirely above the central longitudinal axes of the axles. In some embodiments, the battery 270 and / or controllers 272, 274 are disposed entirely below the central longitudinal axis of the support member 162 (axis A) and / or the central longitudinal axis of the axles 114, 124 (axis B).

[0061] In some embodiments, the axles 114, 124 and the support member 162 are separate components. In some embodiments, the axles 114, 124 and the support member 162 are not connected. As shown in FIG. 10 , in some embodiments, there is a first gap G1 in the first housing 130 between the first end of the support member 162 and the wheel 111 and / or axle 114, and a second gap G2 in the second housing 140 between the second end of the support member 162 and the wheel 121 and / or axle 124. The inclusion of at least one gap G1, G2 allows components of the vehicle 100 (such as the battery 270 and / or one or both of the controllers 272, 274) to be positioned on the side of the support member 162 within the housings 130, 140, unlike vehicles with longer support members. The inclusion of at least one gap G1, G2 can reduce the dimensions of the housing 130, 140 (such as the length, width, or thickness of the housing 130, 140) required to accommodate the support member 162, the battery 270, and / or the controllers 272, 274. In some embodiments, the length of the first gap G1 can be different from the length of the second gap G2. For example, the length of the first gap G1 can be shorter than the length of the second gap G2, or vice versa. In some embodiments, the gaps G1, G2 are symmetrical about the center of the vehicle 100 and are substantially the same length.

[0062] In some embodiments, the length of at least one of the gaps G1, G2 can be longer than the length of the support member 162. For example, in some variations, the ratio of the length of the support member 162 to the length of the gap G2 can be approximately 0.7 to 0.8. In some embodiments, the length of at least one of the gaps G1, G2 can be substantially the same as the length of the support member 162. In some embodiments, the length of the first gap G1 can be at least 50% of the length of the first housing 130, and / or the length of the second gap G2 can be at least 50% of the length of the second housing 140. In some embodiments, the length of at least one of the gaps G1, G2 can be equal to or longer than the combined lateral width of the battery 270 and one of the controllers 272, 274.

[0063] Some embodiments are configured to limit the angle of rotation of the second housing 140 relative to the support member 162 and / or the first housing 130. For example, the rotation of the second housing 140 may be limited to protect the cable connecting the battery 270 to the second wheel assembly 120. Certain embodiments have a limiting structure that limits the relative angle of rotation of the second housing 140.

[0064] In some embodiments, the electric balance vehicle 100 is configured to expand, extend, and / or increase the surface area on which a user can place their feet. In some embodiments, the platforms 132, 142 can splay, extend, and / or swing outward to increase the width of the deck (e.g., to provide additional surface area for the user's feet). For example, in some embodiments, the platforms 132, 142 can include extendable flaps pivotally connected to the housings 130, 140, respectively, and configured to pivot to an extended position where the extended platforms can support the user's feet. In some embodiments, a support member 162 can be coupled to the extendable platforms.

[0065] The terms "first" and "second" are merely numbered to clearly describe the corresponding technical features and do not represent the actual order. In a specific implementation, the locations of the technical features defined by the terms "first" and "second" are interchangeable.

[0066] Orientation terms used herein, such as "top," "bottom," "horizontal," "vertical," "longitudinal," "lateral," "outside," "inside," and "end," are used in the context of the illustrated embodiments. However, the present disclosure should not be limited to the orientations shown. Indeed, other orientations are possible and within the scope of this disclosure. It should be understood that circular-related terms, such as "diameter" and "radius," used herein, do not require a perfectly circular structure but can apply to any suitable structure having a measurable cross-sectional area on both sides. Terms generally related to shape, such as "circular," "cylindrical," "semicircular," "semi-cylindrical," or related or similar terms, do not necessarily conform strictly to the mathematical definition of a circle or cylinder, but can include structures that are fairly close approximations.

[0067] As used herein, the terms "approximately," "about," and "substantially" refer to an amount close to a stated amount that still performs a desired function or achieves a desired result. For example, in some embodiments, depending on the context, the terms "approximately," "about," and "substantially" may refer to an amount that is 10% or less of the stated amount. As used herein, the terms "generally" and "approximately" refer to a value, amount, or characteristic that primarily includes or tends toward a particular value, amount, or characteristic. As an example, in certain embodiments, depending on the context, the term "approximately parallel" can refer to something that is 20 degrees or less away from exactly parallel.

[0068] Conditional language such as "can," "could," "might," or "might," unless otherwise specified or understood within the context in which it is used, is generally intended to convey that a particular embodiment includes or does not include certain features, elements, and / or steps. Thus, such conditional language is generally not intended to imply that the features, elements, and / or steps are required methods for one or more embodiments.

[0069] Unless otherwise indicated, connective language such as the phrase "at least one of X, Y, and Z" is understood in the context in which it is commonly used to convey that an item, term, etc. is either X, Y, or Z. Thus, such connective language is generally not intended to suggest that a particular embodiment requires the presence of at least one of X, at least one of Y, and at least one of Z.

[0070] Several embodiments have been described in connection with the accompanying drawings. While the figures are drawn to scale, the scale is not limiting, and dimensions and proportions other than those shown are contemplated and within the scope of the disclosed invention. Distances, angles, and the like are merely illustrative and do not necessarily bear a precise relationship to the actual dimensions and layout of the devices shown. Components may be added, removed, and / or rearranged. Furthermore, the disclosures herein of particular features, aspects, methods, properties, characteristics, qualities, attributes, elements, etc., associated with various embodiments may be used in all other embodiments shown herein. Furthermore, the methods described herein may be implemented using any device suitable for performing the described steps.

[0071] While the present invention has been disclosed in the context of certain embodiments and examples, the scope of this disclosure extends beyond the specifically disclosed embodiments to other alternative embodiments and / or uses of the invention, as well as obvious modifications and equivalents thereof. The systems, methods, and devices described herein may include combinations of the foregoing features as described in this and other paragraphs. While several variations of the invention have been shown and described in detail, other modifications within the scope of the invention will be readily apparent to those skilled in the art based on this disclosure. Furthermore, various combinations or subcombinations of specific features and aspects of the embodiments may be made and still be considered within the scope of the invention. Various features and aspects of the disclosed embodiments may be combined with or substituted for one another to form varying modes of the disclosed invention. Accordingly, it is intended that the scope of the invention disclosed herein should not be limited by the specific disclosed embodiments described above, but should be determined solely by a fair interpretation of the following claims. [Explanation of symbols]

[0072] 100 Electric Balance Vehicle 110 First Wheel Assembly 111 First Wheel 114 axles 116 Connection mechanism 120 Second Wheel Assembly 121 Second Wheel 124 axles 126 Connection mechanism 130 1st Housing 131 Tapered Area 132 Platform 134 Fender part 136 Upper housing 137 Internal cavity 138 Lower housing 140 Second Housing 141 Tapered Area 142 Platform 144 Fender part 146 Upper housing 147 Internal cavity 148 Lower housing 150 Power Switch 154 Charging Interface 160 spacer 162 Support member 170 Central area 270 Battery 272 First Controller 274 Second Controller 372,374 Controller housing

Claims

1. An electrically balanced vehicle, a first footrest portion including a first housing and a first wheel assembly, the first wheel assembly including a first wheel, a first motor disposed within the first wheel, and a first axle extending from the first wheel; a second footrest portion including a second housing and a second wheel assembly, the second wheel assembly including a second wheel, a second motor disposed within the second wheel, and a second axle extending from the second wheel; a connecting member having a first end and a second end, the first end disposed within the first housing and the second end disposed within the second housing; Equipped with the first housing defining a first gap between the first end of the connecting member and the first wheel assembly; and the second housing includes a second gap between the second end of the connecting member and the second wheel assembly; an axis extending in a longitudinal direction through a center of the first axle and the second axle is positioned lower than an axis extending in the longitudinal direction through a center of the connecting member, the longitudinal direction being a direction in which the first axle and the second axle extend; the diameters of the first and second wheels are shorter than the widths of the first and second footrest portions in a direction perpendicular to the longitudinal direction; The first wheel and the second wheel have approximately the same width, diameter, and / or height.

2. An electric balancing vehicle as described in claim 1, wherein the first gap has a first length along the longitudinal direction, the second gap has a second length, and the first length is greater than the second length.

3. The electrically balanced vehicle according to claim 1 , further comprising a battery and a controller fixed within the first gap of the first housing.

4. The electrically balanced vehicle according to claim 1 , wherein the first gap defines a space between the first end of the connecting member and the first axle.

5. The electrically balanced vehicle according to claim 1 , wherein the second gap defines a space between the second end of the connecting member and the second axle.

6. The electrically balanced vehicle according to claim 1 , wherein the first housing is rotatable relative to the second housing.

7. The electrically balanced vehicle according to claim 1 , wherein the connecting member connects the first and second housings.

8. The electrically balanced vehicle according to claim 1 , further comprising a first controller that controls the first wheel assembly, a second controller that controls the second wheel assembly, and a battery that supplies power to the first and second controllers.

9. The electrically balanced vehicle according to claim 8 , wherein the first and second controllers are disposed above the longitudinal central axes of the first and second wheel assemblies.

10. An electric balancing vehicle as described in claim 1, wherein the ratio of the length of the connecting member to the length of the electric balancing vehicle along the longitudinal direction is approximately 0.

2.

11. An electrically balanced vehicle, a first housing and a second housing, each configured to support a respective foot of a user, the second housing being rotatable relative to the first housing; a first wheel assembly including a first wheel, a first motor disposed within the first wheel, and a first axle extending from the first wheel; a second wheel assembly including a second wheel, a second motor disposed within the second wheel, and a second axle extending from the second wheel; a support member connecting the first and second housings; a first controller that controls the first wheel assembly and a second controller that controls the second wheel assembly; a battery that supplies power to the first and second controllers and the first and second motors; a first sensor provided in the first housing and a second sensor provided in the second housing, the first sensor configured to detect rotation of the first housing and generate a first detection signal, and the second sensor configured to detect rotation of the second housing and generate a second detection signal; Equipped with the battery and the first controller are disposed on a first side of the support member between the support member and the first axle, and the second controller is disposed on a second side of the support member between the support member and the second axle; diameters of the first and second wheels are shorter than widths of the first and second footrest portions in a direction perpendicular to a longitudinal direction, the longitudinal direction being a direction in which the first axle and the second axle extend; The first wheel and the second wheel have approximately the same width, diameter, and / or height, The battery and the first controller are arranged side by side.

12. The electrically balanced vehicle according to claim 11 , wherein the first and second controllers are disposed above the longitudinal central axes of the first and second axles.

13. 12. The powered balancing vehicle of claim 11, wherein the first and second housings include first and second platforms configured to support a user's feet, and first and second fenders extend upwardly from the first and second platforms.

14. 14. The electrically balanced vehicle according to claim 13, wherein when the first and second platforms are parallel to a running surface, a clearance distance between the bottoms of the first and second housings and the running surface is less than 2 inches.

15. The electrically balanced vehicle according to claim 11, wherein a ratio of the length of the support member to the length of the electrically balanced vehicle along the longitudinal direction is approximately 0.

2.

16. The electrically balanced vehicle according to claim 11, wherein a central portion of the support member is sleeve-shaped and has a spacer.

17. The electrically balanced vehicle according to claim 11 , wherein the first controller is fixed to the first housing, and the second controller is fixed to the second housing.

18. The electrically balanced vehicle of claim 11 , wherein the battery is disposed within an interior cavity of the first housing.

19. 12. The electrically balanced vehicle of claim 11, wherein the first housing comprises a first upper housing and a first lower housing, the first upper housing and the first lower housing secured together to form an interior cavity of the first housing.

20. 12. The electrically balanced vehicle of claim 11, wherein the second housing comprises a second upper housing and a second lower housing, the second upper housing and the second lower housing being secured together to form an interior cavity of the second housing.

Images