An electronic control unit executes control such that a ratio of driving force output from a second motor in requested driving force when a hybrid vehicle travels in a charge depleting mode becomes larger than the ratio when the hybrid vehicle travels in a charge sustaining mode switched from the charge depleting mode by a mode selector switch. As a result, it becomes possible to suppress overheating of the second motor while cooling a first motor. When the mode selector switch is operated to select the charge depleting mode again, the second motor has already been cooled, so that performance of the second motor can sufficiently be demonstrated without a driving restriction due to overheating being imposed thereon. And, it becomes possible to suppress overheating of the second motor while achieving enhanced energy efficiency of the vehicle.

A hybrid vehicle includes an electronic control unit that executes first discharge control in a state where an engine is stopped in the case where a collision detector detects a collision of the hybrid vehicle. The first discharge control includes bringing all switching elements on either one of an upper arm side and a lower arm side of either one of a first inverter and a second inverter into ON states; bringing another inverter into a gate blocking state; and discharging electric charges of a capacitor by using a discharge device until a voltage of the capacitor becomes lower than a threshold.

A vehicle includes: a low voltage battery constituted by a lithium-ion battery, the low voltage battery supplying an electric power to an electric component mounted to a vehicle; a high voltage battery constituted by a lithium-ion battery, the high voltage battery having an output voltage higher than an output voltage of the low voltage battery; a first rotating electrical machine that operates by an electric power supplied from the high voltage battery, the first rotating electrical machine generating a torque for driving the vehicle; and a second rotating electrical machine for starting the engine. The second rotating electrical machine operates by an electric power supplied from the high voltage battery.

A vehicle control device including processor being configured to, when driving sections are present inside a restricted region, extract as a restricted driving section from among driving sections present inside the restricted region a driving section through which it is projected the vehicle will be driven in a restricted time period in which operation of internal combustion engines is restricted, and prepare a driving plan able to drive through the restricted driving section in the EV mode.

A method of controlling a generator for a vehicle includes calculating a current charging amount and a target charging amount of a battery, estimating regenerative energy of the battery based on predicted vehicle travel information, and determining whether a road section in which the vehicle travels is a regenerative braking section based on the predicted vehicle travel information and vehicle position information. The generator and the battery are controlled so the generator maximally charges the battery when the road section in which the vehicle travels is the regenerative braking section and so the energy of the battery and a charging amount of the battery is the target charging amount when the road section in which the vehicle travels is not the regenerative braking section.

A process allocation control method is provided that controls, in a system including an in-vehicle computer mounted in the vehicle and an external computer provided external to the vehicle as nodes communicable with each other, allocation of a process related to driving assistance of the vehicle to the nodes. The process allocation control method includes: estimating an allocation risk of the process being interrupted in cases of allocating the process to either of the nodes, based on at least one of a remaining battery charge of the vehicle or a communication status between the nodes; and determining the node to which the process should be allocated, based on the allocation risk.

In a vehicle drive system using a motor for cruising, the connection node of serially-connected first and second batteries is grounded. The operation of an inverter is controlled so that the motor drive voltage is higher than the output voltage of each of the first and second batteries. The vehicle drive system is configured so that electric power can be supplied, from each of the first and second batteries, to an electric apparatus mounted in a vehicle other than the inverter.

A method for operating a hybrid electric vehicle including an electric machine, a battery and an internal combustion engine, the load point of which is shifted upward to drive the electric machine for charging the battery in the generator mode, wherein a target state of charge of the battery is specified; a required target charging capacity is determined; the load point of the internal combustion engine initially is only shifted upward within an engine-map range of the internal combustion engine.

A method for operating a hybrid vehicle having an electrical energy store, an electric drive and an internal combustion engine, includes activating, by a driver of the hybrid vehicle, a battery control mode by actuating a defined operator control element. A special drive operating strategy for the internal combustion engine is triggered in the battery control mode with the electric drive switched off. An increased charging gradient is then obtained by the special drive operating strategy if a current state of charge of the electrical energy store is below one of a desired state of charge or a lower tolerance threshold with respect to the desired state of charge.

A vehicle with a hybrid drivetrain including a fuel-fed engine coupled to a first drive axle, an electric motor coupled to a second drive axle and an APU for providing electrical power at stopover locations, and further including a controller for determining a location of the vehicle, a location of a stopover location, determining a target SOC of a battery for operating the APU at the stopover location and operating a hybrid control system to provide the target SOC for the vehicle at the stopover location.