As a control of an inverter, a first pulse width modulation control switches a plurality of switching elements by generating a first pulse width modulation signal of the switching elements, and a second pulse width modulation control switches the switching elements by generating a second pulse width modulation signal of the switching elements based on a voltage modulation rate, a voltage phase, and the number of pulses per unit cycle of an electrical angle of the motor based on the torque command and has a smaller number of switchings of the switching elements than the first pulse width modulation control. The first pulse width modulation control and the second pulse width modulation control are executed in a switched manner. Execution of the second pulse width modulation control as the control of the inverter is restricted when the quietness is needed, compared with when the quietness is not needed.

An electric vehicle includes: a rotary electric machine configured to generate a driving force for driving driving wheels; a driving battery storing power to drive the rotary electric machine; a converter connected to the driving battery; an auxiliary battery connected to the driving battery via the converter; and a cooling box connected to the auxiliary battery. When the driving battery has an SOC reduced to be smaller than a prescribed threshold value, the converter is stopped and power remaining in the auxiliary battery is used to drive the cooling box.

A vehicle includes a traction battery and a controller. The controller, in response to the traction battery having to be charged at a charging station during a vehicle trip for the traction battery to have sufficient energy for the vehicle to complete the vehicle trip, schedules the traction battery for charging during the vehicle trip at a selected charging station from among multiple charging stations in which an overall time of the vehicle trip will be lowest.

A system includes energy modules that output power to an energy management bus based on load demands. An energy module includes energy cells enclosed within a module housing that provide power to the energy management bus and a driving system attached to the module housing that transports the energy module. The energy module includes a local controller that controls power output from the energy cells to the energy management bus, engages a self-driving mode in response to receiving a disconnection signal from a central controller, and controls movement of the energy module in the self-driving mode to a predetermined location via the driving system. The central controller receives a current module status from the energy modules and controls a configuration of the energy modules providing power to the energy management bus based on the current module status.

Method for operating an assistance system of a vehicle with at least one electrical energy store, comprising the following steps: detecting a temperature of the electrical energy store of the vehicle by means of at least one first sensor, identifying an operating state of the electrical energy store by means of the detected temperature of the electrical energy store by a control unit, determining the position of the vehicle and/or detecting an operating parameter of the vehicle more particularly by means of at least one second sensor, communicating the operating state to the assistance system of the vehicle, wherein at least one signal is generated by the assistance system in the case of an abnormal operating state of the electrical energy store if the position of the vehicle is within a predefinable geographical area.

Systems and methods for electric vehicle charging with automated trip planning integration. The inventive charging system sends requests to various available web services, such as mapping or route planning service, weather service and the like to obtain various data related to the planned trip. Such data may include trip distance, terrain information, vehicle information, traffic data, weather data as well as vehicle user driving behavior. All this information is used to calculate the amount of battery charge required to complete the trip. The system then automatically issues a charge command to electric vehicle supply equipment to charge the vehicle in accordance with the calculated battery charge amount.

An electrical system may include a power circuit configured to provide a power output, first and second batteries, and first and second switches configured to connect and disconnect the first and second batteries, respectively, to the power output in parallel with one another. The electrical system may also include a controller electrically connected to the first and the second switches, and configured to control operation of the first switch and/or the second switch. The electrical system may also include a load predictor in communication with the controller and configured to predict power demands of an electric load on the power circuit and send a signal indicative of the predicted power demands to the controller, which may activate the first switch and/or the second switch to connect the first battery and/or the second battery to the power output based at least in part on the signal indicative of the predicted load.

A method for operating a traction battery in a motor vehicle, wherein the traction battery is charged in a charging operating state with a fast-charging device. A quantity of energy to be recharged at the fast-charging device is specified. An anticipated heating of the traction battery is determined depending on a charging capacity, which, taking into consideration a predeterminable maximum charging time, is determined from the quantity of energy that is to be recharged. A starting temperature (T.sub.start) for the battery charging is determined in such a way that, after the charging operation has been carried out at the fast-charging device, a battery operating temperature (T.sub.batt) of the traction battery does not exceed an upper limit (T.sub.hi) for the battery operating temperature. The battery operating temperature (T.sub.batt) is recorded during a driving operating state of the motor vehicle.

A computer-based method is provided for monitoring bicycle range. The method includes retrieving powered bicycle range data and defining a remaining powered bicycle range at least partially based on the powered bicycle range data. The method then determines or acquires distance to destination data and defines a remaining distance to a destination at least partially based on the distance to destination data. The method then compares the powered bicycle range data or the remaining powered bicycle range to the distance to destination data or the remaining distance to the destination and generates a visualization comparing the powered bicycle range data to the distance to destination data. Also provided is a system for implementing the methods described.

Methods and systems for estimating driving range for an electric vehicle. Each of Kalman Filter-based and receding horizon-based approaches to estimating driving range and providing driving range data to a driver of a vehicle are illustrated. Approaches configured for use when a destination is not known as well as when a destination is known are illustrated.