A distance determination method has: detecting a first received signal strength indicator (RSSI) of a first electronic device by a second electronic device; detecting a second RSSI of the second electronic device by the first electronic device; obtaining the first RSSI from the second electronic device by the first electronic device; and calculating a motion direction and a distance of the second electronic device relative to the first electronic device according to the first RSSI and the second RSSI by the first electronic device.

A distance determination method has: detecting a first received signal strength indicator (RSSI) of a first electronic device by a second electronic device; detecting a second RSSI of the second electronic device by the first electronic device; obtaining the first RSSI from the second electronic device by the first electronic device; and calculating a motion direction and a distance of the second electronic device relative to the first electronic device according to the first RSSI and the second RSSI by the first electronic device.

There is provided a method comprising receiving at a controller an input comprising a channel output from an input channel of a vehicle. The input is triggered by an operation of the vehicle by an operator. The input channel has a corresponding direct operational manifestation. The method also comprises comparing at the controller the input with a set of input patterns to select from the set of input patterns a target input pattern corresponding to the input, and generating at the controller a control output corresponding to the target input pattern. The control output is configured to cause in the vehicle a target operational manifestation different than the direct operational manifestation. Furthermore, the method comprises sending the control output from the controller to the vehicle.

There is provided a method comprising receiving at a controller an input comprising a channel output from an input channel of a vehicle. The input is triggered by an operation of the vehicle by an operator. The input channel has a corresponding direct operational manifestation. The method also comprises comparing at the controller the input with a set of input patterns to select from the set of input patterns a target input pattern corresponding to the input, and generating at the controller a control output corresponding to the target input pattern. The control output is configured to cause in the vehicle a target operational manifestation different than the direct operational manifestation. Furthermore, the method comprises sending the control output from the controller to the vehicle.

A control system in accordance for a human-powered vehicle comprises a brake device configured to brake a wheel, a brake operating device operated to actuate the brake device, a first communication path configured to communicate a first actuation signal between the brake device and the brake operating device, and a second communication path configured to communicate a second actuation signal between the brake device and the brake operating device. The second communication path differs from the first communication path.

A straddled vehicle, including a head pipe, a main frame extending rearward from the head pipe, a fuel tank supported by the main frame, an air cleaner arranged in front of the fuel tank, a side cover formed on a lateral side of the fuel tank to partially overlap the fuel tank in a side view of the straddled vehicle, an intake port provided at an edge of the side cover and opening toward an outside of the straddled vehicle, an air cleaner chamber in which at least a part of the air cleaner is arranged, and an intake passage including a first passage between the side cover and a side surface of the fuel tank, the intake port communicating with the air cleaner chamber through the intake passage. The side cover includes a front portion located forward of the air cleaner, and the intake port is arranged rearward of the air cleaner.

A battery holder 54 for fitting a battery pack 52 to a frame 4 of a cycle 2 comprises a spine portion 100 for fixing to the frame 4; a connector portion 110 to form an electrical connection between the battery pack and wiring; and a battery moving portion 115 for moving the battery pack 52 towards the connector portion to engage the battery pack with the connector portion. A lever mechanism 120 actuates sliding of the battery moving portion 115 in a linear direction between an open state providing clearance for insertion/removal of the battery pack and an engaged state for engagement of the battery pack 54 and connector portion 110. The lever mechanism 120 has a retained state which provides resistance to removal of the battery pack from the battery holder. This provides a simple to install and fasten holder which securely holds the battery pack.

A bicycle electric rear derailleur 26 comprises a base member 41, a movable member 43, and a linkage structure 45. The linkage structure 45 is configured to operatively couple the base member 41 to the movable member 43. The linkage structure 45 includes at least one of a wireless communication unit receiving space S11, a charging-portion receiving space S12, a control-board receiving space S13, an operating-member receiving space S14, a display-unit receiving space S15, a connector receiving space S16 and a data-reader receiving space S17.

A method for monitoring the travel speed of a bicycle, in particular a pedelec. The method includes: providing a power supply for a speed signal transmitter, ascertaining a first speed for the bicycle, interrupting the power supply for the speed signal transmitter for a specifiable interruption time span, while the power supply is switched off, ascertaining a second speed, ascertaining a comparison result by comparing the ascertained first and second speed, and recognizing a faulty speed signal transmitter as a function of the result of the comparison.

A method for monitoring the travel speed of a bicycle, in particular a pedelec. The method includes: providing a power supply for a speed signal transmitter, ascertaining a first speed for the bicycle, interrupting the power supply for the speed signal transmitter for a specifiable interruption time span, while the power supply is switched off, ascertaining a second speed, ascertaining a comparison result by comparing the ascertained first and second speed, and recognizing a faulty speed signal transmitter as a function of the result of the comparison.