Abstract: A platooning system executes automatic follow-up running in line with a predetermined intervehicle distance between adjacent vehicles from a leading vehicle, the platoon participating vehicles each comprising a driving force source, an automatic transmission capable of shifting to a plurality of gear stages each having a different gear ratio, and an in-vehicle control device automatically controlling output of the driving force source and the gear stages of the automatic transmission, the platooning system comprising a platoon control device connected via wireless communication to the platoon participating vehicles, for managing at least shifting of the automatic transmission, the platoon control device executing platoon shift control that shifts the automatic transmission via the in-vehicle control device in order from vehicles on tail side among the platoon participating vehicles in case of satisfying shift conditions previously defined to allow the driving force source to work in a proper working range.

Abstract: A drive force control system for an electric vehicle configured to reduce noises and vibrations during propulsion by controlling a motor serving as a prime mover. A controller of the drive force control system comprises: a vibration determiner that determines whether an operating point of the motor will enter a noise region; and a torque ratio changer that changes a ratio between a torque driving a first wheel and a torque driving a second wheel to deviate the operating point of the motor from the noise region, when the vibration determiner determines that the operating point of the motor will enter the noise region.

Abstract: A temperature detecting unit for detecting the temperature of the left electric motor and the temperature of the right electric motor, a temperature determination unit for determining that the temperature of one of the detected temperatures is outside the predetermined temperature range, a driving force limiting unit for reducing driving torque of the other electric motor that is not outside the temperature range when it is determined that one of the temperature of the left electric motor and the temperature of the right electric motor is outside the temperature range, and a driving torque increasing unit for increasing driving torque by the other driving device that does not include the one electric motor that is outside the temperature range among the first driving device and the second driving device when driving torque of the other electric motor is reduced.

Abstract: The processing device of the information processing apparatus includes: a first step of calculating a relative frequency distribution of the original data; a second step of setting a plurality of time windows for cutting data for a partial period of the original data; a third step of cutting data from the original data; a fourth step of calculating a relative frequency distribution in extracted data; and a fifth step of calculating an error between the relative frequency distribution in the original data and the relative frequency distribution in the extracted data, and performs a search process of repeatedly executing the trial from the second step to the fifth step by changing settings of the time windows. The processing device calculates an index value of damage of the parking lock mechanism by using the extracted data in which the error becomes equal to or smaller than the threshold value.

Abstract: The processing device of the information processing device includes: a first step of calculating a relative frequency distribution of the original data; a second step of setting time windows for clipping data of a part of the period of the original data; a third step of clipping data from the original data; a fourth step of calculating a relative frequency distribution in the extracted data; and a fifth step of calculating an error between the relative frequency distribution in the original data and the relative frequency distribution in the extracted data, and performs a search process of repeatedly performing the trial from the second step to the fifth step by changing the setting of the time windows. The processing device calculates an index value of the damage of the friction material of the transmission using the extracted data in which the error becomes the threshold value or smaller.

Abstract: A drive force control system for an electric vehicle configured to prevent a temperature rise in a motor to a restrictive temperature, and to ensure running stability of the electric vehicle when the temperature of the motor reaches the restrictive temperature.

Abstract: A cooling control device for an electrified vehicle comprising: a first electric oil pump for supplying oil to a first motor for driving a front wheel; and a second electric oil pump for supplying oil to a second motor for driving a rear wheel, wherein the device is capable of switching between a four-wheel drive travel mode and a two-wheel drive travel mode in which a second motor is used as a driving force source; wherein when a two-wheel drive travel mode is selected, the device starts operating the first electric oil pump when only the second electric oil pump is driven and it is predicted to run in a four-wheel drive travel mode.

Abstract: The drive device comprises first and second motors comprising respective first and second rotary shafts. The drive device comprises first and second counter shafts connected to each of the first and second rotary shafts via first and second counter gears. The drive device comprises first and second transmission shafts connected to each of the first and second counter shafts via third and fourth counter gears. The drive device comprises first and second drive shafts connected to each of the first and second transmission shafts via first and second hypoid gears. The first and second rotary shafts are located between the first and second counter shafts with respect to the vehicle width direction. The first and second transmission shafts are located between the first and second counter shafts in the vehicle width direction.

Abstract: A sound-source search system for searching a sound source that causes a noise propagated inside or outside a cabin of a vehicle. The system includes: a sound-source search device for acquiring sound data by collecting and measuring a sound; an informing device for informing a sound measuring position in which the sound-source search device should be installed for collecting and measuring the sound; and a control device for acquiring a driving information related to a driving state of the vehicle upon generation of the noise. The control device extracts a sound-source candidate that is a candidate of the sound source causing the noise, based on the acquired driving information, and to cause the informing device to inform the sound measuring position that is set based on a predetermined relationship between the sound-source candidate and the sound measuring position. Also disclosed is a sound-source search method using the sound-source search device.

Abstract: A control system for an electric vehicle for allowing a driver to virtually enjoy a manual shifting operation as performed in the conventional vehicles having transmissions without reducing stability and operability of the electric vehicle. A controller is configured to set a required drive torque in accordance with a selected operating range, and to selectively allow an execution of a skip shifting of the operating range to the range further than two ranges from the current operating range, based on the required drive torque to be set in the operating range selected by operating a shifting device consecutively.

Abstract: A cooling control system for an electric vehicle configured to prevent ingestion of air into an oil pump cooling a motor when the electric vehicle is accelerated or decelerated abruptly. A controller comprises: a detector that detects acceleration and deceleration of the electric vehicle; an abrupt acceleration/deceleration determiner that determines that the acceleration or the deceleration exceeds than a threshold; and an oil reducer that reduces an amount of oil supplied from an oil pump to a motor where the lighter load than the load on another motor is applied, when the acceleration or the deceleration exceeds the threshold.

Abstract: A drive device mounted on a vehicle, the drive device comprising: an electric motor housed in the electric motor chamber; a first shaft arranged parallel to or coaxial with a rotor shaft of the electric motor; a counter gear for transmitting rotation of the rotor shaft to the first shaft; a second shaft for rotating wheels of the vehicle; a hypoid gear for transmitting rotation of the first shaft to the second shaft; an oil seal for sealing a gap between the first shaft and the case; a first lubricating oil housed in the electric motor chamber and the counter gear chamber; and a second lubricating oil housed in the hypoid gear chamber.

Abstract: A drive device installed in a vehicle includes a case including an electric motor chamber, a terminal block chamber, and a gear chamber, an electric motor, a terminal block, a speed reducer, and a hypoid gear. A first through hole is provided in a partition wall between the electric motor chamber and the terminal block chamber. A second through hole is provided in a partition wall between the terminal block chamber and the gear chamber. The electric motor includes a rotor shaft extending from the electric motor chamber through the first through hole, the terminal block chamber, and the second through hole, to the gear chamber. A gap between the rotor shaft and the second through hole is sealed by an oil seal. A first lubricating oil is accommodated in the electric motor chamber and the terminal block chamber. A second lubricating oil is accommodated in the gear chamber.

Abstract: The drive device comprises first and second motors comprising respective first and second rotary shafts. The drive device comprises first and second counter shafts connected to each of the first and second rotary shafts via first and second counter gears. The drive device comprises first and second transmission shafts connected to each of the first and second counter shafts via third and fourth counter gears. The drive device comprises first and second drive shafts connected to each of the first and second transmission shafts via first and second hypoid gears. The first and second rotary shafts are located between the first and second counter shafts with respect to the vehicle width direction. The first and second transmission shafts are located between the first and second counter shafts in the vehicle width direction.

Abstract: A drive device includes: a first motor that drives a left wheel; a second motor that drives a right wheel; an oil reservoir; a partition wall provided on a bottom face of the oil reservoir and sections the oil reservoir into a left oil reservoir and a right oil reservoir; a first oil pump that intakes oil from an intake port that opens to a bottom face of the left oil reservoir and supplies sucked oil to the first motor; and a second oil pump that intakes oil from a suction port that opens to a bottom face of the right oil reservoir and supplies sucked oil to the second motor. The partition wall is provided with a through hole extending from the left oil reservoir to the right oil reservoir. A blocking unit for blocking the through hole when acceleration is applied in a lateral direction is provided.

Abstract: The drive device includes a first motor. The drive device includes a first rotational shaft that integrally rotates with a rotor of the first motor. The drive device includes a first counter shaft that is disposed parallel to the first rotational shaft and that is also connected to the first rotational shaft via a first counter gear. The drive device includes a first transmission shaft that is disposed coaxially with the first rotational shaft and that is also connected to the first counter shaft via a second counter gear. A series of oil channels is fashioned within the first rotational shaft and the first transmission shaft.

Abstract: A drive device includes: a first electric motor that drives a left wheel of a vehicle; a second electric motor that drives a right wheel of the vehicle; a first oil pump that supplies oil to the first electric motor via a first oil supply passage; a second oil pump that supplies oil to the second electric motor via a second oil supply passage; a connecting channel that connects the first oil supply passage and the second oil supply passage; and a flow regulating device that is installed in the connecting channel and allows oil to flow in the connecting channel when one of the first oil pump and the second oil pump is abnormal.

Abstract: A driving apparatus includes: a first power source; a fluid transmission device; a first output shaft for receiving a power transmitted from the fluid transmission device through a first power transmission path and outputting the power to drive wheels of a vehicle; a rotary electric machine connected to the first output shaft and/or the drive wheels, through a second power transmission path; and a control device. When the vehicle is stopped or running at an extremely low speed, with a rotary-electric-machine driving mode being established, the control device is configured, upon determination that a drive request amount is larger than a threshold amount value, to place a direct clutch of the fluid transmission device into an engaged state and to place the first power transmission path into a power transmittable state so as to cause the power of the first power source to be outputted to the first output shaft.

Abstract: A hydrogen concentration calculating process calculates a hydrogen concentration in a specific portion of a target region based on an operating state of an internal combustion engine. The internal combustion engine uses hydrogen as fuel. A downstream passage is a portion of an intake passage of the internal combustion engine that is downstream of a throttle valve. A connecting passage connects a crank chamber of the internal combustion engine to the downstream passage. The target region is a region including the crank chamber and the connecting passage. When a condition is met, in which the hydrogen concentration is greater than or equal to a predetermined determination value, a pressure reduction process causes a pressure in the downstream passage to be lower than that at a point in time when the condition is met.

Abstract: A vehicle driving apparatus includes: an engine; a first rotary electric machine; first and second output shafts; a power distribution device for distributing a power between the first and second output shafts; and a control device for controlling an electric-power generation torque of a second rotary electric machine such that a power distribution ratio between the first and second output shafts becomes a target distribution ratio, and controlling a total torque of the engine and the first rotary electric machine such that a requested drive torque is obtained. The control device executes an electric-power consuming control to supply at least a part of a generated electric power generated by the second rotary electric machine, to the first rotary electric machine without via a power storage device, and to drive the first rotary electric machine, such that an operation state of the engine is brought close to a fuel-economy optimum state.