Subaru Corporation

Shinya Sagawa

Takashi Kono

Hiroyuki Suzuki

Yosuke Ohtomo

Itaru Seta

Masaki Komuro

Kazuki Makino

Yoshitsugu Inoue

Masakazu Yoshino

Akihito Katsume

Kyousuke Kuroda

Tomoyuki Yamamuro

Takumi Hoshi

Masaki Komura

Shigemoto Horie

Shin Sawano

A malfunction diagnosing system includes a data acquirer, an appropriate range setter, and a malfunction determiner. The data acquirer is configured to acquire traveling environment data and actual traveling result data in association with each other for a target vehicle to be subjected to malfunction diagnosis. The traveling environment data includes at least driving operation data indicating a driving operation. The actual traveling result data indicates an actual traveling result based on the traveling environment data. The appropriate range setter is configured to derive an appropriate range of actual traveling results based on the traveling environment data for vehicles the models of which are identical to a model of the target vehicle. The malfunction determiner is configured to determine whether the target vehicle has a malfunction by determining whether the actual traveling result data falls within the appropriate range.

Malfunction diagnosing system

A vehicle control apparatus includes an electric motor, an engine, and a control system. The control system executes a first speed mode or a second speed mode as a speed mode of the transmission on the basis of a driving operation performed by a driver, sets a speed ratio on a lower side in the second speed mode than in the first speed mode in a case where an accelerator operation performed by the driver is cancelled, executes a first assist mode or a second assist mode as an assist mode in which the electric motor is brought into a power-running state, and switches the assist mode to the second assist mode in a case where the amount of the accelerator operation is increased greater than a starting threshold while the second speed mode is being executed.

Vehicle control apparatus

A vehicular power supply device to be equipped in a vehicle includes an electric storage unit group, an inverter, a driving motor, a converter, an electric device group, a first switch, and a second switch. The electric storage unit group includes first and second electric storage units. The driving motor is to be coupled to the electric storage unit group via the inverter. The electric device group is to be coupled to the electric storage unit group via the converter. The first switch is to be controlled between a state where the first electric storage unit is coupled to the inverter and a state where the first electric storage unit is coupled to the converter. The second switch is to be controlled between a state where the second electric storage unit is coupled to the inverter and a state where the second electric storage unit is coupled to the converter.

Vehicular power supply device

A vehicular power supply device includes an inverter, a converter, a driving motor, an electric device group, a first electric storage unit to be coupled to the driving motor via the inverter, a second electric storage unit to be coupled to an electric device group via the converter, an electric power converter, first and second switches, and a switch controller. The electric power converter is provided between the two electric storage units and couples them in parallel with each other. The first switch is provided between the first electric storage unit and the electric power converter and is controllable between on and off states. The second switch is provided between the second electric storage unit and the electric power converter and is controllable between on and off states. The switch controller controls the first and second switches based on a state of charge of the first electric storage unit.

A control apparatus is configured to control a vehicle. The vehicle includes an engine, a generator configured to generate electric power by using motive power outputted from the engine, and a drive motor 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 diagnose a state of at least one of the engine, the generator, or the drive motor on the basis of a relationship between a rotational speed of the engine, a rotational speed of the generator, and a rotational speed of the drive motor.

Control apparatus

A vehicular power supply device to be applied to a vehicle includes an electric storage unit group, a charger, first and second switches, and a switch controller. The electric storage unit group includes a first electric storage unit and a second electric storage unit having higher internal resistance than the first electric storage unit. The charger is coupled to the electric storage unit group and charges one or both of the first electric storage unit and second electric storage unit. The first switch is provided between the first electric storage unit and the charger and controlled between an on state and an off state. The second switch is provided between the second electric storage unit and the charger and controlled between an on state and an off state. The switch controller controls the first and second switches based on a temperature of the electric storage unit group.

A vehicle power supply includes an electric accumulator pack, an electric motor, first and second switches, an output determiner, and a switch controller. The electric accumulator pack includes first and second electric accumulators. The first and second switches are controlled between on- and off-states. The output determiner determines whether the first electric accumulator is in a first output state or a second output state, and whether the second electric accumulator is in the first output state or the second output state. If at least one of the first electric accumulator or the second electric accumulator is in the first output state, the switch controller controls either one of the first and second switches to the on-state, and the other switch to the off-state. If both the first and second electric accumulators are in the second output state, the switch controller controls both the first and second switches to the on-state.

Vehicle power supply

A vehicle control apparatus, configured to control a vehicle, includes an engine that is configured to drive wheels via a power transmission device. The vehicle control apparatus includes a towing state detector and an engine controller. The towing state detector is configured to detect whether the vehicle is in a towing state. The engine controller is configured to stop the engine in a case where a predetermined engine stopping condition is satisfied during traveling of the vehicle. The engine controller is configured to vary, in a case where the towing state detector detects that the vehicle is in the towing state, the predetermined engine stopping condition to reduce an operational range in which the engine is to be stopped compared with an operational range in a case where the towing state detector does not detect that the vehicle is in the towing state.

A vehicle includes a transmission shiftable by hydraulic pressure, a main oil passage that delivers operating oil, a first oil passage that delivers the operating oil from the main oil passage to the transmission, a first valve that opens/closes the first oil passage, a controller that controls the first valve, a second oil passage that delivers the operating oil from the main oil passage to the transmission, and a manually drivable second valve that opens/closes a section of the first oil passage that is closer to the main oil passage than the first valve and the second oil passage. The second valve is switchable between the automatic control state in which the first oil passage is opened and the second oil passage is closed and the manual control state in which the first oil passage is closed and the second oil passage is opened.

Growing community of inventors

Tokyo, Japan

Shinya Sagawa