A system, method, and device for operations of an electrically motorized vehicle. The vehicle can utilize an electrically motorized wheel to convert a non-motorized wheeled vehicle to an electrically motorized wheeled vehicle. One method for controlling the device for an electrically motorized wheel includes controlling an amount of assistance from the device of the electrically motorized wheel while travelling uphill to result in a user input requirement about equivalent to that required to propel the vehicle on a level surface.

A control apparatus for a vehicle including a three-phase AC motor and a power converter, the control apparatus includes an ECU. The ECU is configured to determine whether a rotation speed of the three-phase AC motor is equal to or less than a predetermined threshold and whether a stopping operation of the vehicle is performed, to determine that the vehicle stops when the rotation speed is equal to or less than the predetermined threshold and the stopping operation is performed, to determine whether the vehicle skids, and to switch a state of the power converter to a state where all on one side of the first and second switching elements are turned off and at least one on the other side of the first and second switching elements is turned on when the ECU determines that the vehicle stops and that the vehicle does not skid.

A system, method, and device for operations of an electrically motorized vehicle. The vehicle can utilize an electrically motorized wheel to convert a non-motorized wheeled vehicle to an electrically motorized wheeled vehicle. A method of analyzing a fleet of vehicles, each of the vehicles including the device of the electrically motorized wheel includes receiving data from each device of the respective plurality of electrically motorized wheels within a fleet of vehicles and utilizing the data to facilitate tracking at least one vehicle within the fleet.

A system, method, and device for operations of an electrically motorized vehicle. The vehicle can utilize an electrically motorized wheel to convert a non-motorized wheeled vehicle to an electrically motorized wheeled vehicle. A method of analyzing a fleet of vehicles, each of the vehicles including the device of the electrically motorized wheel includes receiving data from each device of the respective plurality of electrically motorized wheels within a fleet of vehicles and utilizing the data to facilitate tracking at least one vehicle within the fleet.

A control system for a vehicle including a three-phase AC motor, a first switching device, a second switching device, and a power converter, is provided. The control system includes a short-circuit detector, and an ECU. The ECU is configured to: (a) control the power converter, when it is determined that the vehicle is stopped, so as to place, the power converter in a predetermined condition in which one of the first switching device and the second switching device for all of the three phases is in an OFF state, and (b) control the power converter when the short-circuit detector detects a short circuit in one of the first switching devices and the second switching devices, so that said one of the first and second switching devices in which the short circuit is detected provides the ON state in the predetermined condition.

A trailer braking device includes tow vehicle that has plurality of wheels and a trailer that is towable behind the tow vehicle which has wheels to roll along a roadway when the trailer is being towed. A plurality of vehicle motors is attached to a respective one of the plurality of wheels associated with the tow vehicle. Each of the vehicle motors is actuatable into a braking condition for braking the tow vehicle. A plurality of trailer motors is each of the trailer motors is attached to a respective one of the wheels on the trailer. Each of the plurality of trailer motors is actuatable into a braking condition for braking the trailer or an assist condition for urging the trailer forwardly reducing fuel consumption of the tow vehicle.

There is provided a powertrain of a mid-drive electric bicycle that enables regenerative braking. The powertrain comprising a mid-drive electric motor, a chain rotatably connected to the mid-drive electric motor, a gearing system mounted in a rear wheel bub, the gearing system rotatably connected to the chain, a mechanical brake connected to a component of the gearing system, and a control system. During operation of the mechanical brake, the gearing system is configured to cause rotation of the chain in a backward direction opposite to the forward driving direction, which mechanically forces the mid-drive electric motor to rotate in the backward direction, to thereby regenerate electric energy. There is further provided a crankset configured to prevent rotation of pedals of the electric bicycle in a backwards driving direction during backwards rotation of the chain in braking mode.

There is provided a method of controlling an electric vehicle. The method includes obtaining by a controller of the electric vehicle a first state indicator of a state of the electric vehicle, receiving at the controller a status indicator of an operating status of the electric vehicle, and updating by the controller the state of the electric vehicle based on the status indicator to an updated state. The updated state may be associated with a second state indicator. The method also includes determining by the controller a given braking type of a braking to be applied to the electric vehicle. This determining may be based on one or more of the second state indicator and the status indicator. The method also includes applying to the electric vehicle the braking of the given braking type. Systems for applying such braking are also provided.

An electric brake device includes a brake rotor; a brake pad; an electric motor; a linear motion mechanism configured to convert a rotary motion of the electric motor into a linear motion so as to be transmitted to the brake pad; a controller to control the electric motor; and a brake command device to send a braking force command to the controller. The controller includes an emergency braking detector to detect an emergency braking request; a steady state controller to perform braking in a steady state; and a flux weakening controller to perform flux weakening control. The flux weakening control is performed when the emergency braking detector detects an emergency braking request.

An electric brake device includes a brake rotor; a brake pad; an electric motor; a linear motion mechanism configured to convert a rotary motion of the electric motor into a linear motion so as to be transmitted to the brake pad; a controller to control the electric motor; and a brake command device to send a braking force command to the controller. The controller includes an emergency braking detector to detect an emergency braking request; a steady state controller to perform braking in a steady state; and a flux weakening controller to perform flux weakening control. The flux weakening control is performed when the emergency braking detector detects an emergency braking request.