Proposed is a method of controlling motor driving of a hybrid electric vehicle. Sum torque of a first motor, which is directly connected to an engine, and a second motor, which is directly connected to an input end of a transmission, are determined based on request torque and torque distributed to the engine. One of a first synthetic efficiency map and a second synthetic efficiency map, to which different conversion references of the motor drive mode are set, are selectively applied to an efficiency map of the second motor, based on information about the motor drive mode applied to the second motor. The sum torque is distributed to each of the first motor and the second motor based on an efficiency map of the first motor and the efficiency map of the second motor.

A method for changing from electrical operation to hybrid operation in a vehicle hybrid drive is provided. The method includes detecting an increase in a target traction power and starting the internal combustion engine. When the internal combustion engine starts, the method includes outputting a positive torque by generating an increasing generator power. The generator power is used together with an electrical power of a storage unit for generating electrical traction power. The generator power is generated while the internal combustion engine is not yet fully coupled to an output. The method includes fully coupling the internal combustion engine to the output after the generation of the increasing generator power has begun. After the internal combustion engine has been fully coupled, the method includes reducing the electrical power of the storage unit to a non-positive value and adjusting the generator power in accordance with a predetermined energy balance.

A controller for a hybrid electric vehicle executes an engine starting process when an execution condition for starting an engine is satisfied. The engine starting process includes a first starting process that drives a motor generator to crank the engine and a second starting process that is executed when the first starting process failed to start the engine. The second starting process includes suspending supply of power to the motor generator and then driving the motor generator to crank the engine. The controller performs a counting process that counts an occurrence of execution of the second starting process after the first starting process failed to start the engine. When the counted occurrence is greater than or equal to a determination threshold value, the controller prohibits operation of an idle reduction system of the engine even if the second starting process successfully started the engine.

A hybrid electric vehicle includes an engine, a motor, a battery, a coupling mechanism, an electric power generating mechanism, and a vehicle controller. The engine and motor drive driving wheels. The battery supplies electric power for running to the motor. The coupling mechanism switches coupling of the engine and the driving wheels between direct coupling and buffering coupling. The electric power generating mechanism generates electric power. The vehicle controller switches a running mode of the hybrid electric vehicle between a first running mode and a second running mode with higher running performance. The vehicle controller limits the electric power generation under a first condition when the buffering coupling is applied during the first running mode and limits the electric power generation under a second condition less limited than the first condition when the buffering coupling is applied during the second running mode.

The disclosed computer-implemented method may include improving safety in operating personal mobility vehicles. The method may track and/or control personal mobility vehicles associated with dynamic transportation networks. The method may improve safety related to PMV operation by taking advantage of the various sources and types of information related to PMV operation that are available in the dynamic transportation network. Other methods, systems, and computer-readable media are disclosed.

A drive force control system configured to reduce a total energy consumption of a hybrid vehicle. The drive force control system calculates: an output power of the engine which can optimize a thermal efficiency given that the engine is operated at a best fuel point; and a required electric power to be supplied from a battery or to be generated by a control motor, which can adjust the drive power established by the output power of the engine to the required power. A power exchange between the control motor and the battery is interrupted if the required electric power to be supplied from the electric storage device or to be generated by the control motor is less than a first predetermined electric power.

Personal mobility vehicles, their various components, methods and systems for controlling, using, tracking, and/or interacting with personal mobility vehicles, and methods and systems for integrating personal mobility vehicles within dynamic transportation networks so that a personal mobility vehicle (PMV) can be used in combination with a vehicle of a transportation provider to efficiently complete a transportation request are discussed. For example, a PMV may be used in combination with a lane-constrained vehicle to improve travel time between two locations in situations where the time it may take for a lane-constrained vehicle to reach the starting location may be affected by traffic congestion at the starting location. The PMV may transport a transportation requestor from a starting location to an intermediate location away from the traffic congestion to then transfer to a lane-constrained vehicle for the remainder of the trip.

A hybrid vehicle control method for a hybrid vehicle is provided for a drive system including an internal combustion engine, a generator that is driven by the internal combustion engine, and a battery that is charged with electric power generated by the generator. A target power generated by the generator is set and the target engine output is calculated for the internal combustion engine according to the target generated power. The air density in the environment in which the vehicle travels is detected. The target engine output is corrected based on the detected air density with respect to the decrease in air density, and the generated power of the generator is made to follow the target generated power. The execution of air density correction is permitted or stopped depending on an operating state of the drive system.

The disclosed computer-implemented method may include routing personal mobility vehicles based on road or path conditions. In some embodiments, trip routing for personal mobility vehicles participating in a dynamic transportation network may leverage road condition map data gathered from personal mobility vehicle sensors to evaluate potential routes for personal mobility vehicles. In some examples, the method may account for the type and/or characteristics of the personal mobility vehicle when evaluating a potential route. In some examples, the method may account for user preferences when evaluating a potential route. The method may also make matching decisions for a dynamic transportation matching system and/or personal mobility vehicle distribution decisions for the dynamic transportation network based on the conditions of prospective routes. Various other methods, systems, and computer-readable media are also disclosed.

A method for autonomously controlling electric power supplied to a thruster of a spacecraft during electric orbit raising includes determining a state of charge of a battery onboard the spacecraft at an entry into an eclipse during each orbit of a plurality of orbits during the electric orbit raising of the spacecraft. The method also includes determining an electric power level used to fire each thruster of a plurality of thrusters during each orbit beginning after the eclipse, based at least on the state of charge of the battery, and that will provide a shortest electric orbit raising duration and minimize thruster propellant usage during electric orbit raising.