A control system for a tiltable vehicle may include a motor controller configured to respond to backward or reverse operation of the vehicle by hindering a responsiveness of the control system (e.g., proportionally) and/or eventually disengaging a drive motor of the vehicle. Accordingly, a user may intuitively and safely dismount the vehicle by selectively commanding reverse operation. In some examples, the backward direction may be user-defined.

A drive power control device includes: a modeling error reduction unit configured to calculate a correction torque by performing high-pass filter processing on a correction amount calculated by a correction amount calculation unit; a control motor torque command value calculation unit configured to calculate a control motor torque command value by adding the correction torque to a motor torque command value; and a slip reduction control unit configured to perform, when the vehicle starts traveling or slip is detected, control to reduce slip by switching the cutoff frequency of a high-pass filter HPF to be low as compared with normal traveling.

An electrically powered work vehicle includes a left driving wheel and a right driving wheel that are supported to a vehicle body, a left motor for driving the left driving wheel and a right motor for driving the right driving wheel, a steering wheel, an acceleration operation tool, a turning command calculation section for calculating a tuning command based on a steering operation amount of the steering wheel, a turning torque calculation section for calculating a turning torque based on the turning command, a vehicle speed command calculation section for calculating a vehicle speed command based on an acceleration operation amount of the acceleration operation tool, a vehicle speed torque calculation section for calculating a vehicle speed torque based on the vehicle speed command, and a speed command calculation section for calculating a left motor speed command and a right motor speed command based on the turning torque and the vehicle speed torque.

A control system for a tiltable vehicle may include a motor controller configured to respond to backward or reverse operation of the vehicle by hindering a responsiveness of the control system (e.g., proportionally) and/or eventually disengaging a drive motor of the vehicle. Accordingly, a user may intuitively and safely dismount the vehicle by selectively commanding reverse operation. In some examples, the backward direction may be user-defined.

A method, system and apparatus for carrying a user including a board for supporting the user, a ground-contacting member coupled with the board, a motorized drive assembly coupled with the ground-contacting member and one or more sensors coupled with the drive assembly. In operation, the drive assembly adjusts the velocity of the ground-contacting member based on one or more distances of the board from a surface below the board as detected by the sensors. As a result, the system is able to maintain a desired velocity when ascending, descending or traversing uneven ground without the need for excessive and sometimes impossible tilting of the board.

A robotic motorcycle may include a chassis, driven wheel assemblies, and a control loop stabilizer. The driven wheel assemblies may each include a wheel and a bevel gear. The wheel may be mounted to an axle for rotation about a drive axis and steering about a substantially vertical steering axis. A steer shaft may connect the axle to a steer assembly that controls rotation of the steer shaft about the steering axis to steer the wheel. A drive shaft may be coupled to a drive assembly that controls rotation of the drive shaft about the steering axis. The bevel gear may couple the other end of the drive shaft to the axle so that rotation of the drive shaft about the steering axis controls rotation of the wheel about the drive axis. The control loop stabilizer may determine parameters for the drive and steer assemblies to balance the motorcycle.

An electric vehicle drive system includes an electric motor, first and second planetary gear sets, including sun gear, carrier and ring gear members, first and second output shafts, and a housing. The members of the first planetary gear set are connected with the electric motor, the first output shaft, and a member of the second planetary gear set. The members of the second planetary gear set are connected with the first planetary gear set, the housing, and the second output shaft. The first planetary gear set provides differential reduction and the second planetary gear set provides reversal and reduction. Optional clutches can provide the function of a limited slip differential and distribute torque preferentially to one output shaft or the other.

The present disclosure relates to a novel portable electric vehicle, which comprises two front-rear folding mechanisms, a left-right folding mechanism, and an operating mechanism, wherein the two front-rear folding mechanisms for supporting a driver are arranged respectively on the left side and the right side of the bottom of the electric vehicle, the rear ends of the front-rear folding mechanisms are both provided with driving wheel mechanisms, and the front ends of the front-rear folding mechanisms are both provided with rotating wheel mechanisms; two ends of the left-right folding mechanism for driving the two front-rear folding mechanisms to get close to each other are connected respectively to the two front-rear folding mechanisms; and the operating mechanism for controlling the running of the electric vehicle is mounted on the left-right folding mechanism. The present disclosure also relates to a method for controlling the drive of the novel portal electric vehicle, which utilizes an Arduino circuit board to control the running of the electric vehicle. The novel portable electric vehicle has the advantages of good driving experience, small size, light weight, convenience in folding and easiness in operation, and belongs to the technical field of electric vehicles.

An electric vehicle drive system includes an electric motor, first and second planetary gear sets, including sun gear, carrier and ring gear members, first and second output shafts, and a housing. The members of the first planetary gear set are connected with the electric motor, the first output shaft, and a member of the second planetary gear set. The members of the second planetary gear set are connected with the first planetary gear set, the housing, and the second output shaft. The first planetary gear set provides differential reduction and the second planetary gear set provides reversal and reduction. Optional clutches can provide the function of a limited slip differential and distribute torque preferentially to one output shaft or the other.

A management method for the energy range of a rechargeable battery pack of an assisted pedal electrical bicycle (1) including an electrical machine controllable for supplying a torque according to a pedal assistance factor, said torque being summed to the one generated by a cyclist through the pedaling, the management method including the following steps: a) selecting a route to be traveled by the electrical bicycle (1) starting from an initial position; b) obtaining data representative of the altitude profile of the selected route and dividing the route in a plurality of segments each being characterized by a respective altitude parameter; c) calculating a value correlated to the maximum percentage of battery pack (20) discharge on the selected route as a function of the altitude profile and of a limit pedal assistance factor K_limit, preferably calculating a value for each segment representative of the percentage of battery pack (20) discharge on the segment as a function of a limit assistance factor K_limit associated to each segment based on the altitude parameter associated to the segment; d) verifying whether the battery pack (20) has a residual positive charge or not at N the end of the route; wherein, if following that step d) of verifying it is determined that the battery pack (20) does not have a residual positive charge at the end of the route, then the management method iteratively repeats the steps c) and d) modifying the limit assistance factor K_limit based on one or more adjustment curves each allowing to obtain a new limit assistance factor for each segment as a function of the segment slope.