A control device for a vehicle includes one or more processors configured to: perform feedback control on an acceleration of the vehicle by controlling a driving force of an internal combustion engine mounted on the vehicle based on a difference between a requested acceleration of the vehicle from an application and an actual acceleration of the vehicle; calculate a first predicted acceleration that is a predicted acceleration of the vehicle on an assumption that the internal combustion engine is controlled into a fuel-cut state; and control the internal combustion engine into the fuel-cut state without performing the feedback control when a coasting condition that is predetermined is satisfied and the first predicted acceleration is equal to or higher than a lower limit value that is predetermined as a negative value.

A control apparatus is configured to control a vehicle. The vehicle includes an engine, a generator, and a drive motor. The generator is configured to generate electric power by using motive power to be outputted from the engine. The drive motor is coupled to a drive wheel. The engine, the generator, and the drive motor are coupled to each other via a planetary gear mechanism. The control apparatus includes a processor configured to control an operating point of the engine by controlling respective operations of the generator and the drive motor. The processor is configured to change a fuel consumption characteristic of the engine on the basis of traveling characteristic data, and to control the operating point of the engine on the basis of the fuel consumption characteristic. The traveling characteristic data indicates a traveling characteristic in the past of the vehicle driven by a driver of the vehicle.

A method and apparatus is disclosed for determining the available gears of a geared vehicle based on the ratios of vehicle speed to engine speed, together with a method and apparatus for determining the current gear in which a geared vehicle is being driven based on the current ratio of vehicle speed to engine speed.

A propulsion system, control system, and method are provided for optimizing fuel economy, which use model predictive control systems to generate first and second predicted actual axle torques and first and second predicted actual fuel consumption rates based on first and second sets of possible command values, respectively. The sets of possible command values include commanded engine output torques and commanded transmission ratios. First and second costs are determined for the first and second sets of possible command values, respectively, based on a first predetermined weighting value, a second predetermined weighting value, the first and second predicted actual axle torques, respectively, the first and second predicted actual fuel consumption rates, respectively, an axle torque requested, an engine output torque requested, a transmission ratio requested, and a fuel consumption rate requested. One of the first and second sets of possible command values is selected and set based on the lower cost.

A method and apparatus for evaluating an advised driving speed of a vehicle traversing a particular portion of a road network is disclosed. The method comprises accessing first predetermined data indicative of the variation in average fuel consumption for the vehicle with speed of the vehicle, using the first predetermined data to determine data indicative of average fuel consumption for the vehicle for a plurality of speeds within a range based on a speed limit for the portion of the road network being traversed, and evaluating the advised driving speed of the vehicle based at least in part on the determined data indicative of average fuel consumption for the vehicle for the range of speeds. The evaluation of the advised driving speed may further be based on second predetermined data indicative of the variation in a likelihood of the vehicle being in the highest gear with speed of the vehicle.

A method and apparatus for providing an advised driving speed to a driver of a vehicle travelling on a road network is disclosed. The method comprises determining an advised driving speed of a vehicle for a portion of the road network currently being traversed, determining a current speed of the vehicle on the portion of the road network, and determining a speed limit and/or an expected driving speed for the portion of the road network. An indication of the advised driving speed is then provided to the driver of the vehicle when: (i) the current speed of the vehicle is greater than a first threshold value based on the advised driving speed; and (ii) the speed limit and/or the expected driving speed is greater than a second threshold value. A method and apparatus is also disclosed for determining a score indicative of the compliance of a driver of a vehicle to an advised driving speed during a journey on a road network.

A method and apparatus for providing an indication to a driver of a geared vehicle that the vehicle is not in an optimal gear is disclosed. The method comprises determining a current gear of the vehicle and determining a current speed of a drive unit of the vehicle. An indication is then provided to the driver of the vehicle that the vehicle is not in an optimal gear when: (i) the determined current speed of the drive unit is greater than a predetermined threshold; and (ii) the determined current gear of the vehicle is less than a maximum gear of the vehicle. A method and apparatus is also disclosed for determining a score indicative of the amount of time during a journey on a road network that a geared vehicle is driven in an optimal gear.

A method and apparatus is disclosed for evaluating the driving of a vehicle performing a journey on a road network, comprising determining at least one constant speed zone of the road network, a constant speed zone being a portion of the road network at which the vehicle can travel at a constant speed, said determination being based upon expected speeds of travel along the road network determined from positional data relating to the movements of a plurality of vehicles over time along the road network. A speed of the vehicle traversing the road network is determined at a plurality of times during the journey, and a value indicative of a consistency of the speed of the vehicle within the at least one constant speed zone is further determined.

A control device for a driving device, the driving device includes a transmission and a hydraulic pressure generating device. The hydraulic pressure generating device includes an oil pump and a first mechanism. The first mechanism is configured to decrease hydraulic pressure of an oil passage connected with the oil pump. The control device includes an ECU. The ECU is configured to control the engine rotational speed to a first rotational speed and maintain vehicle speed by gear shifting, in a case where, while a vehicle is running in a predetermined running state, fuel consumption is smaller when the engine is driven at the first rotational speed, compared to fuel consumption in the predetermined running state, the first rotational speed is a rotational speed at which the hydraulic pressure is decreased, the predetermined running state being a running state in which the hydraulic pressure is not decreased.

A method for controlling a filling operation of a vehicular liquid storage system including a tank including a fill level limiting valve. The method includes: detecting start of a first filling event; measuring a first fill level of the tank; verifying whether the measured first fill level has reached a predetermined fill level; if the verifying is positive, starting a first timer for a first amount of time; upon expiry of the first timer, closing the fill level limiting valve.