An automatic driving executability determination unit restricts automatic driving when a charge amount determination unit (third determination unit) determines that a battery is in a low capacity state, and decides whether to restrict the automatic driving according to a determination result of a discharge performance determination unit (first determination unit) when a temperature determination unit (second determination unit) determines that the battery is in the low capacity state but a charge amount determination unit determines that the battery is not in the low capacity state.

A control device is provided, which includes: a destination determining unit configured to determine a destination of a hybrid vehicle that includes an engine, a motor and a battery and is able to supply waste heat from the engine to the battery; a arrival judging unit configured to judge whether the hybrid vehicle can arrive at the destination with a remaining capacity of the battery based on the remaining capacity and a temperature of the battery; and a vehicle control unit configured to control the hybrid vehicle to start the engine and supply the waste heat from the engine to the battery when the arrival judging unit judges that the hybrid vehicle cannot arrive at the destination.

In exemplary embodiments, methods, systems, and vehicles are provided for controlling operation of a vehicle in a fuel economy mode. In one embodiment, a vehicle is includes a battery, a generator, and a control system for controlling operation of the vehicle in a fuel economy mode, the control system including: (i) one or more current sensors configured to measure a battery current of the battery; and (ii) a processor coupled to the one or more current sensors and configured to at least facilitate controlling operation of the battery and the generator in the fuel economy mode utilizing a dynamic voltage threshold that is adjusted based on a comparison of the battery current with a baseload current threshold.

A diagnostic device includes: an acquirer configured to acquire information indicating a use status and the degree of deterioration of each secondary battery from a plurality of secondary batteries which are mounted in a plurality of vehicles including an target vehicle; a model generator configured to generate a model that is configured to output a battery capacity when a use state is input thereto on the basis of the information acquired by the acquirer; and a deriver configured to derive a future state of the secondary battery mounted in the target vehicle using the model.

A controller for a hybrid vehicle controls a first motor generator and a second motor generator such that electric power input to a battery does not exceed an input upper limit value and electric power output from the battery does not exceed an output upper limit value. The controller executes motoring to rotate an output shaft using the first motor generator with combustion operation of an engine stopped, thereby causing a braking force generated by friction of the engine to act on a driven wheel. The controller executes a valve-opening limitation process that limits an increase in a throttle open degree in correspondence with the input upper limit value upon issuance of an increase request for the throttle open degree that is not based on an operation of requesting a change in the braking force performed by a driver during the execution of the motoring.

A controller for a vehicle is configured to execute, when a state of charge of a battery is less than or equal to a threshold, a charging control to charge the battery with power that is generated by a motor generator using driving force of an internal combustion engine. The controller is also configured to obtain a temperature of the battery, set the threshold to a first threshold during a warm-up period, which is a period from a start of the internal combustion engine until the warm-up of the internal combustion engine is completed, set the threshold to a second threshold, which is greater than the first threshold, when the warm-up period ends, and set the second threshold to be greater when the temperature of the battery is a first temperature than when the temperature of the battery is a second temperature, which is higher than the first temperature.

The disclosure provides a control device for a hybrid vehicle, which can prevent overcharging the battery and effectively utilize the power generated by an electric motor operating as a generator to avoid useless wasted power. The hybrid vehicle includes an engine, an electric motor, a battery, an engine rotational speed sensor, a battery temperature sensor, and a fuel cutting part that stops the operation of the engine according to a specified operating condition. In the state where the operation of the engine is stopped by the fuel cutting part, the control device operates the electric motor as a generator when the rotational speed of the engine is equal to or below a specified value and the battery is chargeable in terms of temperature, and drives a heater with the power generated by the electric motor operating as a generator when the battery is unchargeable in terms of remaining capacity.

Methods and systems are provided for a hybrid electric vehicle. In one example, a method may include delaying an electric-only operation of the hybrid vehicle in response to a powertrain temperature being less than a threshold powertrain temperature and an electric-only range being less than a distance between a current location and a recharging location. The electric-only operation may be initiated in response to one or more of the powertrain temperature exceeding the threshold powertrain temperature and the electric-only range being equal to the distance.

A method for controlling the longitudinal dynamics of a vehicle, where the vehicle has a friction brake system brakes, a drive system with an electromotive drive acting on at least one wheel, and a battery for supplying power to the electromotive drive determines state information which describes the state of the vehicle and/or the state of the brake system and/or of the drive system. Route information is determined which describes the route profile of the vehicle. An action plan for implementing a future braking request by the friction brakes and/or the electromotive drive on the basis of the state information and the route information is determined. The action plan specifies, for future times and/or areas on the route, whether a braking request of the vehicle is to be implemented by means of the friction brake and/or the drive system and implements a braking request accordingly.

A travel control device is mounted on a vehicle including an electric motor and an internal combustion engine that are power sources and a storage battery that stores energy for driving the electric motor and regenerative energy recovered by regenerative braking of the electric motor. The travel control device includes an electronic control device configured to create a speed profile in which a speed of the vehicle is predicted, estimate a predicted amount of the regenerative energy to be recovered, based on the speed profile, and decide the power source to be used for traveling, based on the predicted amount of the regenerative energy and thermal information indicating a demand related to heat of the vehicle.