Abstract: A medical or organisation cart includes a clamping rail for attaching accessories. The cart is rectangular when viewed from above, with rounded corners. The cart includes corner profiles among which at least one is provided with a vertically extending undercut extending to a top surface or a worktop of the cart. The clamping rail has a tensioner, a counter hold element and a connection strap connecting the tensioner with the counter hold element and which the accessories may be attached to or hanged on. The tensioner may be positively connected with the corner profile at the vertical undercut, and the clamping rail may be fixedly attached to the cart and may be detached, both with the help of the tensioner. The clamping rail may be fixedly attached at any position of the vertical undercut and at a position of an adjacent corner profile corresponding to that first position.

Abstract: A pallet lift includes a base and a plurality of wheels supporting the base. A pair of contact surfaces are proximate a distal end of the base. A handle projects upward proximate a proximal end of the base. A rear support surface support is on the base between the contact surfaces and the handle. The base may include a pair of spaced apart rails capable of receiving columns of a pallet therebetween. In one embodiment, the base includes a pair of four-bar linkages and the handle is a lift handle configured to selectively collapse and extend the four-bar linkages to raise and lower a pallet.

Abstract: A multimedia operating station for automatic machine operators including a carriage movable on wheels on a treadable surface and supporting a vertical frame having a first, lower, portion, and a second, upper, portion; a screen for displaying graphics and data associated with the second portion of the frame; a unit for processing graphics and data relating to the components and to the operating systems of the automatic machine and positioned on the first portion of the frame and connected to the screen; a device for introducing commands to the unit for processing graphics and data positioned on the first portion of the frame and connected to the unit for processing graphics and data; an autonomous electricity supply unit positioned in the first portion of the frame and powering at least the screen and the processing unit.

Abstract: An assembly includes a steering wheel having a first member and a second member supported by the first member, the second member being extendable from the first member from a first position to an extended position. The assembly includes a cylinder in the first member. The assembly includes a piston slidably supported by the cylinder. The assembly includes a pyrotechnic in communication with the cylinder.

Abstract: A steering column assembly includes a jacket assembly, a locking assembly, and an adjustment lever. The jacket assembly extends along a steering column axis and is connected to a support bracket. The locking assembly is movable between a locked position that inhibits movement of the jacket assembly relative to the steering column axis and an unlocked position that facilitates movement of the jacket assembly relative to the steering column axis. The adjustment lever is arranged to pivot about a lever axis to move the locking assembly between the locked position and the unlocked position.

Abstract: A method for producing a length-adjustable steering shaft having a hollow shaft in which a toothed shaft is received so as to be axially telescopic. The toothed shaft has a toothing with teeth on an external circumference that extend in the axial direction and which engages in a form-fitting manner in an inner toothing of the hollow shaft. A sliding layer of thermoplastic plastics material is at least in portions attached between the inner toothing and the toothing. In order to enable an improved fastening of the sliding layer to the toothing, prior to attaching the sliding layer, form-fitting elements which for forming a form-fitting connection that is effective in the axial direction are brought to engage with the sliding layer are configured in the region of the toothing of the toothed shaft or the inner toothing of the hollow shaft.

Abstract: An ATV is shown having a steering system comprised of a power steering unit having drive and driven pitman arms coupled to a drag link. The drive pitman arm is laterally offset from a vehicle centerline and is driven by the power steering unit. An alternate power steering system includes a pack and pinion subassembly coupled to a power steering motor, which then couples to steering arms of the ATV.

Abstract: An integrated electric power steering apparatus in which a control unit 1 or 101 for controlling a motor 2 is disposed inside a housing, the control unit 1 or 101 is disposed so as to be coaxial to an output shaft 21 of the motor 2, and in which the control unit 1 or 101 and the motor 2 are integrated, wherein: the control unit 1 or 101 includes a circuit board 4 and an intermediate member 36; main parts are mounted to the circuit board 4; wiring is disposed on the intermediate member 36; the circuit board 4 and the intermediate member 36 are stacked; the parts are mounted to first and second surfaces of the circuit board 4; and a portion of the housing and first surfaces of the parts are placed in direct contact or are placed in contact so as to have a heat-transferring member interposed.

Abstract: A steering apparatus for assisting rotation of a steering shaft in a steering system. The apparatus includes a motor having a drive shaft that rotates about a drive shaft axis and an output shaft that rotates about an output shaft axis. The output shaft axis extends parallel to the drive shaft axis. The output shaft is connected for rotation with the steering shaft. A gear train drivingly connects the motor to the output shaft. The gear train includes a worm screw and a worm wheel.

Abstract: Methods and apparatus for controlling an electronic power assisted steering (EPAS) motor in response to detecting engine stall while restarting an auto stop-start engine are described. A controller is to ramp out current from an EPAS motor in response to detecting that an auto stop-start engine is stalled. The controller is also to invoke a stall recovery attempt at the auto stop-start engine in response to the ramp out of current. The controller is also to ramp in current to the EPAS motor in response to detecting that the auto stop-start engine has been successfully restarted based on the stall recovery attempt.

Abstract: A steering system is described for a vehicle having steerable wheels. A hydraulic charge pressure circuit may be configured to provide charge pressure to one or more hydraulic components of the vehicle and a hydraulic drive pressure circuit may be configured to provide working pressure to one or more other hydraulic components of the vehicle. Hydraulic machines may rotate front wheels in order to drive the vehicle, and a front valve assembly may control steering of the front wheels by controlling the hydraulic machines. The hydraulic machines may be driven to rotate the front wheels by the working pressure from the hydraulic drive pressure circuit, and the front valve assembly may control the front hydraulic machines to steer the agricultural vehicle by controlling flow of hydraulic fluid from the hydraulic charge pressure circuit through the front valve assembly.

Abstract: A computer-implemented method includes: receiving, by a computing device, data identifying steering adjustments made by a driver; determining, by the computing device, an intent of the driver when making the steering adjustments; generating, by the computing device, steering assist instructions based on determining that the intent of the driver is to maintain the vehicle's position within a driving lane; and outputting, by the computing device, the steering assist instructions to counteract the steering adjustments made by the driver and maintain the vehicle's position within the driving lane.

Abstract: A steering control apparatus of vehicle includes a target yaw rate calculator, a target torque calculator, and a target torque corrector. The target yaw rate calculator calculates a target yaw rate that allows a vehicle to travel along a traveling course. The target torque calculator calculates target torque that is torque of an electric motor and allows the target yaw rate to be generated. The target torque corrector performs a correction process that calculates a correction gain directed to the target torque and corrects, with the correction gain, the target torque to cause the target torque to be increased. The target torque corrector performs the correction process when an instruction value based on the target torque is varied at a constant rate and on a condition that an absolute value of a motor rotation angle variation amount becomes equal to or less than a set value.

Abstract: Technical solutions are described for generating and providing a motor torque command in electric systems such as an electric power steering (EPS) system. For example, an example EPS system includes a motor, and a controller that operates the motor to generate torque. The controller determines a torque reference twist based on a torque reference. The controller further determines a motor angle reference twist based on an angle-difference by multiplying the angle-difference by an autonomous mode enable signal. The autonomous mode enable signal is indicative whether the EPS is operating in autonomous mode. The controller further computes a total reference twist based on the torque reference twist and the motor angle reference twist, and computes a motor angle reference based on the total reference twist and a handwheel angle. The controller further generates the motor torque command using the motor angle reference, and sends the motor torque command to the motor.

Abstract: A king-pin joint assembly used in a vehicle. The king-pin joint assembly includes a king-pin, an axle beam and a steering knuckle. At least a portion of an intermediate portion of the king-pin is received and/or retained within at least a portion of an axle beam king-pin receiving aperture in a connector portion of the axle beam. The steering knuckle has a yoke portion with a first yoke arm and a second yoke arm. At least a portion of a first bearing assembly and a first end portion of the king-pin is received and/or retained within at least a portion of a first yoke arm king-pin aperture in the first yoke arm. Additionally, least a portion of a second bearing assembly and a second end portion of the king-pin is received and/or retained within at least a portion of a second yoke arm king-pin aperture in the second yoke arm.

Abstract: This assist device for pulling out of a parking spot includes: an assist control unit for performing assist control to change the steering angle of a vehicle to a target steering angle; and a pulling out possibility determination unit for determining whether or not the vehicle can pull out on the basis of the detection result of a forward obstacle detected by forward detection unit. If it is determined that the vehicle can pull out, the assist control unit performs assist control to change the steering angle of the vehicle from the target steering angle to a neutral angle or a neutral vicinity angle.

Abstract: A lower vehicle body structure includes a vehicle body floor having a bottom surface part, a floor tunnel bulging upwardly from the bottom surface part and extending in vehicle front-and-rear directions, side sills extending in the front-and-rear directions, hinge pillars extending upwardly from the side sills, first frames, lowered parts and second frames. Each first frame extends in the front-and-rear directions between the floor tunnel and a side sill. Each lowered part is provided to the bottom surface part between a first frame and a side sill so as to be lowered below a part where the floor and the side sills are joined. Each second frame extends to a first frame, obliquely rearwardly and inwardly from a side sill along an upper surface of the bottom surface part, and forms in a part including a lowered part a closed cross-section between the bottom surface part and a second frame.

Abstract: A bracket node assembly for an off-road vehicle configured with a side-by-side seating arrangement, the vehicle including at least one suspension member that supports a respective wheel of the vehicle, can include a first frame member, a second frame member, a cross member, a passenger seat, and a bracket. The first frame member can extend along a longitudinal direction of the vehicle. The second frame member can extend along a longitudinal direction of the vehicle. The cross member can extend in a transverse direction of the vehicle. The bracket can be configured to be connected to the suspension member, and the bracket can be connected to each of the first frame member, the second frame member, the cross member, and the passenger seat.

Abstract: A vehicle body structure includes: a pair of left and right suspensions provided below a vehicle body floor; suspension mounting portions for mounting the suspensions to the vehicle body floor; a power supply device that supplies power to drive a vehicle; a frame that supports the power supply device; and frame mounting portions for mounting the frame to the vehicle body floor, wherein the frame mounting portions are disposed at positions overlapping in a vertical direction with the suspension mounting portions.

Abstract: A vehicle body floor structure has: a floor panel having a side edge; a side sill joined to the side edge of the floor panel; a cross member connected to the side sill, the cross member extending in a direction that crosses a direction in which the side sill extends; a first reinforcing member disposed at an internal corner defined by the side sill and the cross member, the first reinforcing member joined to the side sill and to a joint portion of the cross member; and a second reinforcing member disposed at the joint portion of the cross member. The first reinforcing member has an end portion located on a side of the joint portion and having a weak portion.

Abstract: Each side sill of a vehicle body structure includes in addition to an outer panel (21) and an inner panel (22) jointly forming a closed cross section structure (23), a first stiffener (25) extending in the fore and aft direction and interposed between the outer panel and the inner panel and having a lower edge joined to the lower edges of the outer panel and the inner panel, a second stiffener (26) formed as a channel member extending in the fore and aft direction and having an open side facing in the inboard direction, the second stiffener having an upper edge and a lower edge attached to an outboard side of the first stiffener, and a third stiffener (27) extending in the fore and aft direction and in a transverse direction to have an outboard edge joined to the first stiffener and an inboard edge joined to the inner panel.

Abstract: A structural beam which comprises a first beam and a reinforcement to be attached to it. The first beam has a substantially U-shaped cross-section along at least a first portion of its length and comprises a bottom wall and two sidewalls wherein the bottom wall comprises a substantially flat first joining region. The reinforcement of the structural beam has a substantially flat second joining region which may be welded to a first joining region. Both parts of the structure are made of hardened UHSS. Methods for manufacturing such beams are also provided.

Abstract: Structural beam which comprises a first beam and a cover plate to be attached to the first beam. The first beam has a substantially U-shaped cross-section along at least a first portion of its length. The U-shape comprises a bottom wall, two sidewalls, a lateral flange at an end of at least one of the two sidewalls, and a groove in the junction between the sidewall and the lateral flange. The groove has a substantially flat first joining region at or near the bottom of the groove. The cover plate of the structural beam has a substantially flat second joining region welded to a first joining region. Methods for manufacturing such beams are also provided.

Abstract: A steel door ring for an automotive vehicle including a reinforcement to increase the strength of desired areas of the door ring is provided. The door ring can be manufactured with reduced cycle time and thus improved efficiency. The method includes hot stamping the reinforcement as part of the same blank used to form the remainder of the door ring. During the hot stamping step, the reinforcement portion used to form the reinforcement is located in a free space, for example in a door opening between pillars and rails. Unlike comparative processes, the reinforcement portion used to form the reinforcement is not welded to a pillar of the door ring prior hot stamping. After hot stamping, the reinforcement is trimmed from the door ring, and then attached in a desired location, for example by welding.

Abstract: A vehicle side portion structure includes a cross member extended along a vehicle width direction, a pillar that extends along a vertical direction at an end, in a vehicle width direction, of a vehicle, and a gusset for connecting an end portion, in the vehicle width direction, of the cross member to the pillar. The gusset includes a plate portion whose inner end portion in the vehicle width direction is fastened to the cross member, the plate portion being extended from a region including a position fastened to the cross member toward a pillar side and having a region upwardly inclined toward outside in the vehicle width direction until the plate portion reaches in a region on the pillar side to a pillar side end, and a flange joined to the pillar side end of the plate portion and fastened to the pillar. A fastening position of the flange and the pillar is located upward of a fastening position of the inner end portion, in the vehicle width direction, of the gusset and the cross member.

Abstract: A rack system that is configured to allow the omission of cross bars. The cross bars can be easily removable and replaceable or can be adjustable along a length of the rack system. In some configurations, the rack system includes at least one side support arrangement comprising a first vertical support and a second vertical support. Two or more side support arrangements can be provided on each side of the truck bed. Pairs of support arrangements on one side of the truck bed can be connected by one or more longitudinal supports. Accessories, such as tool boxes or gas cans, can be connected to the one or more longitudinal supports.

Abstract: A pickup truck cargo box subassembly includes a load floor composed of a sandwich structure having an upper skin, a lower skin and a core extending therebetween. The upper skin is formed of a composite material including continuous reinforcing fibers. The pickup truck cargo box subassembly also includes a left inner sidewall panel having an integrated left inner sidewall panel joining surface extending horizontally along at least a portion of a length of the left inner sidewall panel. The pickup truck cargo box subassembly also includes a right inner sidewall panel having an integral right inner sidewall panel joining surface extending horizontally along at least a portion of a length of the right inner sidewall panel. The left and right inner sidewall panel joining surfaces join a peripheral portion of the load floor. The pickup truck cargo box subassembly also includes a headboard and a rear cross sill.

Abstract: A vehicle tailgate can be being pivotally attached to a cargo area of the vehicle with a gap being defined between an edge of the tailgate and an end of the floor of the cargo area. Embodiments disclosed herein relate to a tailgate gap cover that can protect the gap between a tailgate and a vehicle cargo floor. In one embodiment, the disclosed cover includes a cover member having a first edge pivotally attached to the tailgate such that a second edge opposite the first edge rests on cargo area floor beyond the gap when the tailgate is in a raised position or a lowered position.

Abstract: A commercial motor vehicle having a chassis, an engine compartment defined between parallel elongate beams of the chassis, and a driver cabin positioned at least partially over the engine compartment. The driver cabin being supported on the chassis by spaced resilient suspension devices, and includes an upper cabin part and a lower cabin part. The upper cabin part is tiltable to allow access to the engine compartment by being hinged about a lower edge, while the lower cabin part remains associated with the chassis when the upper cabin part is tilted. The lower part of the driver cabin is supported by the resilient suspension devices.

Abstract: An operator station suspension system including a subframe structure with connection locations, isolators, and suspension components to couple the subframe structure to a chassis and enable movement of the subframe structure relative to the chassis. The subframe structure connects to an operator station at the connection locations with isolators between the subframe structure and operator station at each connection location to reduce noise and vibration. The isolators can be made of rubber, polymer or other materials. Each connection location can have a connection post, and the isolators can be ring-shaped to fit over the connection posts. The suspension components can include shock dampers that enable vertical movement, control linkages that enable pitch motion, and/or stabilizer linkages that enable roll motion of the subframe structure relative to the chassis. The subframe structure can include a rigid body with forward and rearward arms rigidly connected to the rigid body.

Abstract: An assembly for enabling rotational motion in a vehicle or mobile working machine is disclosed which includes at least two sections arranged in an overlying position relative to the vehicle's or working machine's working surface. A top section can be led to motion relative to a bottom section and a longitudinal rotation axis, the top section and the bottom section being movably coupled to each other by at least one trajectory element which generates a curvilinear trajectory. The relative motion of the top section and the bottom section proceeds along a curvilinear trajectory in a section plane which is perpendicular relative to the lengthwise rotation axis. The trajectory can be at least partly in the shape of a circular arc, the midpoint of this curvilinear trajectory being disposed below the bottom section. An actuator mounted on the vehicle or working machine affects the top section and/or the bottom section.

Abstract: A vehicle includes a heat exchanging type cooling device includes an undercover disposed below the cooler body and having an air exhaust passage into which the ambient air discharged through the lower surface of the cooler body is introduced and through which the ambient air is exhausted into outside atmosphere, under a negative air pressure generated due to an air stream generated during running of the vehicle; and an elastically deformable sealing member in a closed form interposed between the air exhaust passage and the lower surface of the cooler body. The undercover is attached to the body of the vehicle, such that a gap is provided between the undercover and the lower surface of the cooler body, and such that the sealing member fluid-tightly closes the gap.

Abstract: Disclosed herein are embodiments of a reinforcement or brace that can be installed on the tailgate of a vehicle. The reinforcement can provide structural support for heavier mounted objects, such as tires, as well as allowing for different attachment points. Advantageously, the tailgate hinge does not need to be removed or replaced.

Abstract: A material handling vehicle comprising: a chassis, comprising an upper surface arranged on a first loading surface, a plurality of components coupled thereto, including; a power source, a drive motor, at least one drive wheel powered by the drive motor, at least one stabilizing wheel, at least one object sensor for detecting objects in the vehicle surroundings, a wireless interface for communication with other system units, a control unit, and a navigation device. The chassis further comprises at least one opening, arranged at a lowermost portion of the chassis, and extending from a first side portion of the chassis. The one opening arranged to receive a material handling element, and comprises an upper abutment surface and sidewalls, extending along the extension of each opening. A material handling system comprises a group of material handling vehicles, the group comprises at least one of the vehicles and at least one forklift truck.

Abstract: A hitch assembly, including a first frame for being attached to a tow vehicle and a second frame for being attached to a trailer. The second frame is movably engaged with the first frame and is adapted for fore and aft movement relative to the first frame along a plurality of ball bearings.

Abstract: Track assemblies for power machines include a track frame, including a primary portion and a second portion moveable with respect to the primary portion. A plurality of rollers are positioned along the primary portion of the track frame relative to each other and the center of gravity of the power machine to provide an improved capability to compensate for vibration generated as the power machine moves over a support surface. In some aspects, a portion of a tensioning idler is positioned within a cylinder defined by one of the plurality of rollers.

Abstract: In certain embodiments, a flooring apparatus provides improved traction, improved wear resistance and improved structural support. The flooring apparatus may include an elongated member that includes a top surface and a bottom surface. The top surface may include a cutout portion that extends along at least a portion of a longitudinal axis of the elongated member. One or more inserts are positioned at least partially within the cutout portion. The insert may include a texturized top surface and may be constructed of a polymer material or other material with improved traction and, in certain embodiments, improved wear resistance.

Abstract: A bicycle hanger for storing a bicycle in an elevated and suspended state features a support configuration that comprises a set of three support members, including a front support member spanning across a seat of a bicycle at an underside thereof in front of a seat post of said bicycle, an intermediate support member spanning across said seat post of said bicycle at a front side of said seat post, and a rear support member spanning across said seat post of said bicycle at a rear side of said seat post. In one embodiment, the intermediate support member is respectively connected to the front and rear support members by linking members extending from opposite ends of the intermediate member, thereby collectively imparting an S-shape layout to the support configuration.

Abstract: A saddle type vehicle includes a seat rail and a seat that is attached to the seat rail. The seat rail includes an outer edge that is placed on an outward side in a vehicle body width direction and an inner edge that is placed on an inward side in the vehicle body width direction and higher than the outer edge. On the other hand, the seat includes a sitting part. When the sitting part sits on an upper surface of the inner edge, a side part of the seat surrounds (covers) the sitting part.

Abstract: In a headlight support structure of a saddle riding vehicle, a headlight support supporting a headlight is mounted on a bottom bridge connected between left and right sides of a front fork. In the headlight support structure, the headlight support is mounted in an integrally-molded headlight stay supporting the headlight. The headlight includes an aiming mechanism outside the headlight. The aiming mechanism is mounted in the headlight stay.

Abstract: A front luggage rack is described, for a motorcycle with a loading-bearing shell (20; 20?), the load-bearing shell having a front shell part and a shell part operatively facing downwards. The luggage rack includes a luggage rack body; and at least one anchoring element associated to the luggage rack body. The at least one anchoring element is configured so as to allow rigidly anchoring the luggage rack body in at least one point of the front shell part. The luggage rack body has two anchoring arms shaped so as to be able to be anchored to the shell part facing downwards; and it further includes third and fourth anchoring elements associated respectively to the first and second anchoring arm, which are configured so as to allow rigidly anchoring the first and second anchoring arm to said shell part facing downwards.

Abstract: An apparatus for securing articles to structural members includes a main strap assembly having at least three distinct portions configured for forming a secure loop by attachment of at least one of the portions to another of the portions. The apparatus further includes a pair of parallel ancillary strap assemblies attached transversely to the main strap assembly. Each of the pair is attached to a respective one of ancillary releasable engagement mechanisms at an end thereof, for forming an engageable loop. The ancillary strap assemblies can be used to attach the main strap assembly parallel to an elongate structural member. The secure loop of the main strap assembly can be used for securing a heavy article to a bicycle frame, or the like.

Abstract: A saddle-type vehicle is equipped with a rearview mirror. The rearview mirror includes a stay extending from a vehicle body outward in a vehicle width direction, and a housing connected to an extending end portion of the stay and extending outward in the vehicle width direction, the housing including a mirror body. The housing further includes an upper wall and a lower wall which are arranged at positions overlapping each other in the vertical direction of the vehicle body. The upper wall has an upper outer surface portion whose length in a front-rear direction is shorter than the length of a lower outer surface portion of the lower wall in the front-rear direction, as viewed in a cross-sectional view perpendicular to the vehicle width direction.

Abstract: A Method and Apparatus for Heating and Cooling a Motorcycle Seat have been disclosed. In one implementation a plurality of heating and cooling elements are used to affect heating and cooling a motorcycle seat.

Abstract: A bicycle component operating apparatus includes a first operating device and a second operating device. The first operating device includes a base member, a main body and an operating member. The base member has a clamp configured to be coupled to a handlebar. The operating member is movably arranged with respect to the base member. The operating device member is configured to perform an operation of at least one of a bicycle transmission component and a bicycle brake component. The second operating device includes an attachment part that is detachably and adjustably attached to the attachment area of the main body.

Abstract: A front structure for a straddle-type vehicle includes a front cushion unit supported by a support shaft installed between a pair of left and right arms of a straddle-type vehicle while being disposed at a position behind a front wheel steering shaft of the straddle-type vehicle and above an engine, and a cover that covers a space between the pair of left and right arms between the front wheel steering shaft and the front cushion unit.

Abstract: A rear derailleur is provided for a bicycle. The rear derailleur has an upper alignment assembly and a lower alignment assembly pivotally connected via a linkage assembly. The upper alignment assembly is pivotally attached to the bicycle along a b-knuckle mounting axis, and the upper alignment assembly includes a motor assembly to pivot the upper alignment assembly along an upper rotatable axis that is generally perpendicular to the b-knuckle mounting axis. The lower alignment assembly is pivotally attached to a pulley assembly along a p-knuckle mounting axis, and the lower alignment assembly includes a motor assembly to pivot the lower alignment assembly along a lower rotatable axis that is generally perpendicular to the p-knuckle mounting axis.

Abstract: A bicycle transmission hub includes: a hub shaft to input a rotation force is input, the hub shaft having first pawls arranged on the outer peripheral surface thereof; a transmission controller for controlling the first pawls to appear and disappear; driving gears, each having a ratchet formed on the inner peripheral surface thereof to receive a rotation force by the first pawls, the driving gears having a different number of teeth, the hub shaft extending through the center of each driving gear; driven gears engaged with the driving gears, respectively, having a different number of teeth, and rotating; an output wheel rotating while being coupled to a driving gear adjacent thereto among the driving gears and having a second pawl disposed on the outer peripheral surface thereof; and a hub shell having a ratchet formed on the inner peripheral surface thereof to receive a rotation force by the second pawl.

Abstract: A bicycle control device is configured to appropriately control a motor. The bicycle control device is provided in a bicycle driving device. A bicycle control device includes an electronic controller that controls a motor, which assists with propulsion of a bicycle. In a case where a traveling speed of the bicycle is less than or equal to a predetermined speed, the electronic controller controls the motor so that the motor assists with propulsion of the bicycle. The predetermined speed is changed in accordance with at least one of a usage environment of the bicycle and a posture of the bicycle.

Abstract: A wireless communication method adapted to an electrical gear-shifting system of bicycle comprises: establishing a first communication connection to an intermediate device by a master controller; establishing a second communication connection to the intermediate device by a slave controller, sending a control signal to the intermediate device through the first communication connection by the master controller, sending the control signal to the slave controller through the second communication connection by the intermediate device, wherein the slave controller controls a motor driver to perform a gear-shifting operation according to the control signal.