The disclosure is directed at an apparatus for an active converter dolly for use in a tractor-trailer configuration. In one aspect, the apparatus includes a system to connect a first trailer towed behind a towing vehicle to a second trailer. The apparatus further includes a kinetic energy recovery device for translating the mechanical motions or actions of the dolly into electricity or electrical energy so that this energy can be used to charge a battery or to power other functionality for either the dolly or the tractor-trailer. The active dolly may also operate to assist in shunting the tractor-trailer. The active dolly is operable in a number of modes to increase vehicle performance and efficiency.

A light ranging system including a shaft; a first circuit board assembly that includes a stator assembly comprising a plurality of stator elements arranged about the shaft on a surface of the first circuit board assembly; a second circuit board assembly rotationally coupled to the shaft, wherein the second circuit board assembly includes a rotor assembly comprising a plurality of rotor elements arranged about the shaft on a surface of the second circuit board assembly such that the plurality of rotor elements are aligned with and spaced apart from the plurality of stator elements; a stator driver circuit disposed on either the second or the first circuit board assemblies and configured to provide a drive signal to the plurality of stator elements, thereby imparting an electromagnetic force on the plurality of rotor elements to drive a rotation of the second circuit board assembly about the shaft; and a light ranging device mechanically coupled to the second circuit board assembly such that the light ranging device rotates with the second circuit board assembly.

A light ranging system including a shaft; a first circuit board assembly that includes a stator assembly comprising a plurality of stator elements arranged about the shaft on a surface of the first circuit board assembly; a second circuit board assembly rotationally coupled to the shaft, wherein the second circuit board assembly includes a rotor assembly comprising a plurality of rotor elements arranged about the shaft on a surface of the second circuit board assembly such that the plurality of rotor elements are aligned with and spaced apart from the plurality of stator elements; a stator driver circuit disposed on either the second or the first circuit board assemblies and configured to provide a drive signal to the plurality of stator elements, thereby imparting an electromagnetic force on the plurality of rotor elements to drive a rotation of the second circuit board assembly about the shaft; and a light ranging device mechanically coupled to the second circuit board assembly such that the light ranging device rotates with the second circuit board assembly.

Electric trolley includes safety controller that determines whether or not to stop the driving of driving wheel, and driving commander that outputs, to the motor driver, (i) an operation permission signal for permitting motor to be operated and (ii) a control signal for controlling an operation of motor, in which safety controller performs control to stop inputs of the operation permission signal and the control signal to motor driver when the safety controller determines to stop the driving of driving wheel.

A system and method for setting a regenerative braking value are disclosed. The disclosed system may include: a first measurement unit configured to measure the displacement information of a brake pedal of an electric vehicle; a second measurement unit configured to measure the speed of the electric vehicle; a third measurement unit configured to measure the distance from the electric vehicle to an object in front of the electric vehicle; a first computation unit configured to compute the brake force required for a deceleration of the electric vehicle by inputting the displacement information and the speed into a first fuzzy logic algorithm; and a second computation unit configured to compute the regenerative braking value by applying the brake force and the distance to the object to a second fuzzy logic algorithm.

A regenerative braking system is provided. The regenerative braking system includes: a preceding vehicle recognition module installed in a vehicle, the preceding vehicle recognition module configured to determine whether a preceding vehicle is present and measure information on a relative distance and a relative velocity to the preceding vehicle; a vehicle sensor installed in the vehicle; and a controller configured to receive information generated from the preceding vehicle recognition module and a sensor signal generated form the vehicle sensor; to generate a reference deceleration to maintain a distance from the preceding vehicle within a safety distance; to generate a driving torque command for outputting regenerative braking torque for following the generated reference deceleration; and to transfer the generated driving torque command to a vehicular driving system.

A vehicle provided with an electric motor configured for outputting warning through torque control of the motor and a method of outputting warning for the same, may include: recognizing, by a controller, a stop point or a deceleration section where a pause or deceleration of the vehicle is required or recommended; setting, by the controller, a virtual road surface facility based on the stop point or a start point of the deceleration section; outputting, by the controller, information on a set position of the set virtual facility or a distance remaining from the vehicle to the set position; and implementing, by the controller, driving feeling passing through the set virtual road surface facility as a pitching motion of the vehicle using a torque control of the electric motor according to a vehicle speed when the electric vehicle passes the set position.

Embodiments include methods for a wireless device configured for use with a vehicle powered by a battery. Such methods include receiving first status information associated with the battery via a first short-range wireless connection and determining location information associated with the vehicle. Such methods include transmitting the location information and the first status information to a management server via the wide-area wireless network. Other embodiments include complementary methods for a management server to manage one or more vehicles powered by batteries. Such methods include determining first control information for the battery based on the location information and the first status information and transmitting the first control information to the wireless device via the wide-area wireless network. Other embodiments include wireless devices and management servers configured to perform such methods.

A vehicle includes: an electrical load; a generator; a battery; and a controller configured to, control the operation of the generator based on the charging rate of the battery, identify a power generation margin representing a ratio of the power that the generator can output to a maximum power based on the duty ratio of the input voltage applied to the generator, and reduce power consumption of the electrical load based on a comparison between the power generation margin and a target margin. The vehicle can prevent or minimize the voltage drop phenomenon of the generator by using the power generation margin of the generator.

The disclosure is directed at a method and apparatus for an active convertor dolly for use in a tractor-trailer configuration. In one embodiment, the apparatus includes a system to connect a tractor to a trailer. The apparatus further includes a charge generating system for translating the mechanical motions or actions of the dolly into electricity or electrical energy so that this energy can be used to charge a battery or to power other functionality for either the dolly or the tractor-trailer. The active dolly may also operate to assist in shunting the tractor-trailer.