A motorcycle includes an electric motor having an output shaft defining a motor axis, a rear wheel drivably coupled to the electric motor to propel the motorcycle, a swingarm rotatably supporting the rear wheel, and a frame. The frame includes a main frame member supporting the electric motor and the swingarm. A case of the electric motor is a stressed member of the frame between the main frame member and the swingarm. The swingarm is coupled to the case of the electric motor to define a swingarm pivot axis that is co-axial with the motor axis.

A system generates haptic feedback in an electric vehicle. The system comprises a frame, an energy storage device, and a wheel rotatably coupled to the frame. A motor receives power from the energy storage device and provides torque to the wheel. A controller determines a first operational state of the electric vehicle and transmits a first torque signal to the motor to control the motor to transmit first torque levels to the wheel to propel the electric vehicle. The controller determines a second operational state of the electric vehicle and transmits a second torque signal to the motor assembly. The motor assembly transmits second torque levels to the wheel to generate haptic feedback. The second torque signal is based on the second operational state of the electric vehicle and a torque profile stored in the memory, where the torque profile defines an irregular-shaped periodic waveform (e.g., a heartbeat rhythm).

A power storage device (4) includes a power storage unit (1211) including a plurality of cells, and a BMU (1212) configured to control the power storage unit (1211). The BMU (1212) includes an upper limit power acquisition unit (23) configured to acquire, based on a SOC and a temperature of the power storage unit (1211), an upper limit power that is an upper limit of a power output from the power storage unit (1211) or a power input to the power storage unit (1211).

A parallel charging-discharging management system of multiple batteries comprises a main control module, a charging dual-MOS control module, a discharging dual-MOS control module, a communication module, a voltage sampling module, a current sampling module, a temperature sampling module, an electric quantity display module and batteries; the main control module is connected with a charging dual-MOS control module, a discharging dual-MOS control module, a communication module, a voltage sampling module, a current sampling module, a temperature sampling module and an electric quantity display module; the charging dual-MOS control module is connected with a power supply, batteries and a main control module, the discharging dual-MOS control module is connected with the batteries; the main control module and the load, the current sampling module is connected with the batteries and the main control module; the temperature sampling module is connected with the main control module; it prevents battery discharging and isolates parallel batteries.

A vehicle-mounted power supply system includes a sampling circuit, a voltage comparison control circuit, a power conversion circuit, and a motor. The sampling circuit is configured to obtain an output voltage value of an output terminal of the power conversion circuit. The voltage comparison control circuit is configured to output a first power adjustment signal to the power conversion circuit when the output voltage value is less than a first target voltage value. The power conversion circuit is configured to increase an output voltage to a first target voltage based on the first power adjustment signal, to output the output voltage to the motor and increase an input voltage of the motor. When a voltage of a power supply is low, the input voltage of the motor can be maintained at a required level.

A straddled electric vehicle includes a wheel, an electric motor to drive the wheel, a battery to supply electric power to the electric motor, a DC charging port to receive a DC current output from a first external power source, and an AC charging port to receive an AC current output from a second external power source. A first distance between the DC charging port and the battery is smaller than a second distance between the AC charging port and the battery.

A bicycle component is provided other than a rear derailleur and a drive unit. The bicycle component includes an electrical part, a rechargeable power source and a non-contact charging portion. The rechargeable power source is electrically connected to the electrical part. The non-contact charging portion is configured to wirelessly receive external electric power and to supply the external electric power to the rechargeable power source. A non-contact charging method is also provided for charging the rechargeable power source of the bicycle component.

A method for adjusting a motor torque of a motor of an electric bicycle. The method includes a detection of a speed signal, which describes a speed of the bicycle, a selection of a filter parameter for a filter unit based on a dynamics of the speed signal, a filtering of the speed signal by the filter unit by applying the selected filter parameter, and an ascertainment of a motor torque based on the filtered speed signal. An associated device is also described.

A solar-powered vehicle that includes a body having opposing sides and defining a cavity; two or more wheels; a first and second solar panel assembly respectively disposed on the opposing sides of the body; one or more electric motor disposed within the cavity of the body between the first and second solar panel assemblies, the one or more electric motors configured to rotate at least one of the two or more wheels; and one or more electric battery disposed within the cavity of the body between the first and second solar panel assemblies, the one or more electric batteries configured to power the one or more electric motors and to be charged by electric current generated by the first and second solar panel assemblies.

A method for controlling the cruising speed of a hybrid or electric propulsion vehicle includes detecting a forward travel speed of the vehicle, identifying a downhill forward travel condition of the vehicle, activating a control of the downhill cruising speed following said identification of said downhill forward travel condition, determining a reference speedy for the vehicle and calculating a charging current for the battery pack generated by the electric motor as a function of a deviation between said reference speed and the detected forward travel speed of the vehicle. The step of identifying a downhill forward travel condition of the vehicle includes calculating a parameter representative of said downhill condition as a function of the detected forward travel speed and the motor current.