An electric pedelec bottom bracket drive includes a drive unit, a drive controller, and an ambient temperature detector. The drive unit includes a drive unit housing, a drive motor arranged therein, and a housing temperature sensor which measures a housing temperature. The drive controller supplies electrical drive energy to the drive motor and includes a housing temperature control module which is connected to the housing temperature sensor and which controls an electrical drive energy to not exceed a housing limit temperature. The ambient temperature detector is arranged to detect an air temperature outside of the drive unit housing and is connected to the housing temperature control module. The housing temperature control module limits a maximum electrical drive energy as a function of the air temperature when the housing temperature measured by the housing temperature sensor is above a control intervention limit temperature which is below the housing limit temperature.

An adhesively coupled power-meter measures one or more of force, torque, power, and velocity of a mechanical arm. The power meter includes a plate with a first surface prepared for adhesively coupling to the mechanical arm. At least one strain gauge is physically coupled with a second surface, opposite the first, of the plate and with an orientation corresponding to an orientation of the adhesively coupled power meter such that mechanical forces are transferred from mechanical arm to the at least one strain gauge when the plate is adhesively coupled to the mechanical arm. The power meter also includes electronics for receiving a signal from the at least one strain gauge and for determining one or more of force, torque, power and velocity from the signal, and a wireless transmitter for transmitting one or more of force, torque, power and velocity to a receiving device.

The invention discloses a bicycle drive system (10) and a kit. The drive system comprises a drive unit (15) comprising a housing, a motor unit (20) having a stator (21), a rotor (22) and an output shaft and accommodated in the housing, and a first stage deceleration unit (30) having an input part connected to the output shaft of the motor unit and an output part; a mounting unit (50) configured to secure and hold the drive unit on a bicycle body (70); and a second stage deceleration unit (40) arranged external to the drive unit and detachably mounted on the first stage deceleration unit for connection to a pedal assembly (80) to transfer a drive force from the output part of the first stage deceleration unit to chainrings (82) of the pedal assembly. The drive unit, the mounting unit and the second stage deceleration unit are each provided as a modular part for assembling to the bicycle. The invention provides a customizability of the drive system.

The invention discloses a bicycle drive system (10) and a kit. The drive system comprises a drive unit (15) comprising a housing, a motor unit (20) having a stator (21), a rotor (22) and an output shaft and accommodated in the housing, and a first stage deceleration unit (30) having an input part connected to the output shaft of the motor unit and an output part; a mounting unit (50) configured to secure and hold the drive unit on a bicycle body (70); and a second stage deceleration unit (40) arranged external to the drive unit and detachably mounted on the first stage deceleration unit for connection to a pedal assembly (80) to transfer a drive force from the output part of the first stage deceleration unit to chainrings (82) of the pedal assembly. The drive unit, the mounting unit and the second stage deceleration unit are each provided as a modular part for assembling to the bicycle. The invention provides a customizability of the drive system.

A driving device and a driving method for an electric assisted bicycle are provided. The driving device includes a motor, a rotation speed sensor, a torque sensor and a controller. The rotation speed sensor senses a rotation speed value of a crank or a chainring of the electric assisted bicycle. The torque sensor obtains an average torque value applied by the crank to the chainring of the electric assisted bicycle. The controller controls an output of the motor in response to the rotation speed value and the average torque value.

A driving device and a driving method for an electric assisted bicycle are provided. The driving device includes a motor, a rotation speed sensor, a torque sensor and a controller. The rotation speed sensor senses a rotation speed value of a crank or a chainring of the electric assisted bicycle. The torque sensor obtains an average torque value applied by the crank to the chainring of the electric assisted bicycle. The controller controls an output of the motor in response to the rotation speed value and the average torque value.

A bicycle configurable for operating using a speed based control system and scheme or a torque based control system and scheme. A speed sensor or a torque sensor may detect an operating characteristic of the bicycle and a controller may determine whether to operate using a speed based control system and scheme or a torque based control system and scheme based on the operating characteristic. A signal from a speed sensor or a torque sensor may be used for determining the mechanical limits of a CVT range and when to incorporate an electric motor.

A leaning vehicle includes an actuator control unit that causes an actuator to generate an actuator torque in a counterclockwise direction based on a bar-handle-rotation-moment change amount in the case where a bar-handle-rotation-moment change amount in the counterclockwise direction is generated by a rider performing one operation of a right-grip-pushing-force increasing operation, a left-grip-pulling-force increasing operation, a right-grip-pulling-force reducing operation, and a left-grip-pushing-force reducing operation. The actuator control unit causes the actuator to generate an actuator torque in a clockwise direction based on a bar-handle-rotation-moment change amount in the case where a bar-handle-rotation-moment change amount in the clockwise direction is generated by a rider performing one operation of a left-grip-pushing-force increasing operation, a right-grip-pulling-force increasing operation, a left-grip-pulling-force reducing operation, and a right-grip-pushing-force reducing operation.

An electric bicycle central shaft torque sensing system, comprising a central shaft, a strain sleeve, a pedalling force output portion, a torque sensor and a five-way piece, one end of the strain sleeve being fixed on the five-way piece via a bearing and connected to the pedalling force output portion, another end being sleeved on the central shaft and fixedly connected thereto, an inner surface of the strain sleeve fitting with an outer surface of the central shaft, an outer surface of the strain sleeve being adhered to the torque sensor, the torque sensor transmitting a signal to a controller via a signal transmitter, the controller controlling motor output. The present invention prevents the current widespread phenomenon of unbalanced left/right foot detection during measurement by a torque sensing system. Measured radial torque accurately reflects the pedalling force, and a sprocket is driven via the strain sleeve whether the left foot or the right foot is pedalling, thereby ensuring smooth riding and increasing riding comfort.

A lap counting method and device is provided. The lap counting method and device is applied to a non-motorized vehicle, and the non-motorized vehicle is provided with a torque sensor. The lap counting method includes: S110, obtaining data of the torque sensor in real time; S120, obtaining real-time torque data according to the data of the torque sensor; S130, obtaining a change period of the real-time torque data according to the real-time torque data; and S140, determining lap counting data according to the change period, wherein the lap counting marking point is a peak value of the change period. Since the lap counting is performed by means of a periodic change of the torque acting on a crank of a bicycle, data is stable and free from interference caused by external factors, and the lap counting is stable and reliable.