Abstract: According to one embodiment, a display device includes a display panel, a first light guide, and a second light guide. In the first light guide, a first main surface includes a first plane and first grooves between the first plane and a first side surface, a second main surface includes second grooves orthogonal to the first grooves, and a second plane between the second grooves and the first side surface. In the second light guide, a third main surface includes a third plane and third grooves located between the third plane and a fourth side surface, a fourth main surface includes fourth grooves orthogonal to the third grooves, and a fourth plane located between the fourth grooves and the fourth side surface.

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 front/rear-wheel independent drive vehicle includes: (a) a front-wheel drive unit including a front-side drive source configured to drive a front wheel of the vehicle and a front-side transmission mechanism disposed in a power transmission path between the front-side drive source and the front wheel and having a constant gear ratio; and (b) a rear-wheel drive unit including a rear-side drive source configured to drive a rear wheel of the vehicle and a rear-side transmission mechanism disposed in a power transmission path between the rear-side drive source and the rear wheel and having a constant gear ratio. The front-wheel drive unit and the rear-wheel drive unit are spaced apart from each other in a longitudinal direction of the vehicle. The gear ratio of the rear-side transmission mechanism is higher than the gear ratio of the front-side transmission mechanism.

Abstract: A drive apparatus is for a vehicle that includes left and right wheels. The drive apparatus includes: (a) a left-side gear transmission mechanism disposed between a left-side drive source and the left wheel; and (b) a right-side gear transmission mechanism disposed between a right-side drive source and the right wheel. Each of the left-side and right-side gear transmission mechanisms includes a plurality of rotary shafts and a plurality of gears. The left-side and right-side gear transmission mechanisms are the same as each other in terms of a number of the rotary shafts, a number of the gears and a positional relationship between the gears. Each of the gears of the left-side gear transmission mechanism and a corresponding one of the gears of the right-side gear transmission mechanism are identical with each other and disposed in the same attitude as each other.

Abstract: A vehicle electric drive apparatus is provided with a single hydraulic pump and left-side and right-side drive units. The left-side drive unit includes a left-side electric motor and a left-side transmission mechanism. The right-side drive unit includes a right-side electric motor and a right-side transmission mechanism. One of rotary shafts of the left-side transmission mechanism and one of rotary shafts of the right-side transmission mechanism constitute a pair of pump-drive rotary shafts. The single hydraulic pump is connected to the pair of pump-drive rotary shafts through respective one-way clutches, and is to be driven by one of the pump-drive rotary shafts that is rotated at a speed higher than the other of the pump-drive rotary shafts, so as to output a hydraulic pressure.

Abstract: According to one embodiment, a lens portion includes a first lens element converging while converting first circularly polarized light into second circularly polarized light and a second lens element converging while converting the second circularly polarized light into the first circularly polarized light. Each of the first lens element and the second lens element includes first liquid crystal molecules, and the alignment direction of the first liquid crystal molecules of the first lens element is line symmetry with the alignment direction of the first liquid crystal molecules of the second lens element.

Abstract: A mobile terminal detects a self-device being located at a predetermined location, and stops reception of sensing information from a module device that transmits the sensing information, if being located at the predetermined location is detected. A fixed device receives the sensing information from the module device, and transmits the sensing information to a cloud server.

Abstract: A mobile terminal acquires a schedule of a user using a module device that includes a sensor, and instructs the module device to initiate a process for determining when to start or when to stop transmitting sensing information detected by the sensor to a communication destination, on the basis of the schedule. The module device acquires the sensing information, and initiates the process for determining when to start or when to stop transmitting the sensing information to the communication destination, on the basis of the instruction to initiate the determination process.

Abstract: An oil condition estimation apparatus to be applied to a vehicle in which oil is agitated by a rotator includes a storage device and an execution device. The storage device stores mapping data for defining mapping. The mapping includes, as input variables, a speed variable indicating a rotation speed of the rotator, and a pressure variable indicating a pressure of the oil, and includes, as an output variable, an air bubble variable related to air bubbles contained in the oil. The execution device executes an acquisition process for acquiring values of the input variables, and a calculation process for calculating a value of the output variable by inputting, to the mapping, the values of the input variables acquired through the acquisition process.

Abstract: According to one embodiment, an illumination device includes a first light guide having a first side surface, a second side surface located on a side opposite to the first side surface in a first direction, a first main surface, and a first opposed surface located on a side opposite to the first main surface in a second direction intersecting the first direction and a first light source opposed to the first side surface to emit first P-polarized light to the first side surface, the first side surface is inclined to the first main surface and the first opposed surface, the first light source is inclined to a first straight line perpendicular to the first side surface.

Abstract: A hydraulic pressure calculation apparatus is applied to a gear shifting system including a transmission configured to switch between a connected state and a disconnected state of a friction engagement element depending on a hydraulic pressure supplied from a hydraulic circuit, and a hydraulic controller configured to control the hydraulic circuit. The hydraulic pressure calculation apparatus includes a memory and a processor. The memory stores pieces of mapping data of a plurality of phases obtained by dividing a period from a start to an end of switching between the connected state and the disconnected state of the friction engagement element. Each piece of the mapping data defines a mapping. The processor is configured to output, as an output variable, an estimated hydraulic pressure variable indicating an estimated value of an actual hydraulic pressure supplied from the hydraulic circuit to the friction engagement element.

Abstract: According to one embodiment, an illumination device includes a light guide including a first main surface, a second main surface, a first side surface, and a second side surface, a plurality of convex portions provided on the second main surface, and a first light source element and a second light source element opposing the first side surface and the second side surface, respectively, and when an incident angle of a main ray of the light propagating in the light guide is expressed by ?, a diffusion angle of the light is ?, an angle of the convex portion of the light guide is ?, a critical angle of the light guide is ?c, and an angle which satisfies (90°??c) is ?0, a relationship: ((?0+?)/3)<?<((?0??)/2) is satisfied.

Abstract: According to one embodiment, a display device includes a display panel, a first light guide, and a second light guide. In the first light guide, a first main surface includes a first plane and first grooves between the first plane and a first side surface, a second main surface includes second grooves orthogonal to the first grooves, and a second plane between the second grooves and the first side surface. In the second light guide, a third main surface includes a third plane and third grooves located between the third plane and a fourth side surface, a fourth main surface includes fourth grooves orthogonal to the third grooves, and a fourth plane located between the fourth grooves and the fourth side surface.

Abstract: According to one embodiment, an illumination device includes a light guide, a plurality of light source elements, and a reflector including a first portion parallel to a second edge of the light guide and a second portion parallel to a third edge of the light guide, and the third edge includes first short edges extending in the first direction and second short edges extending in the second direction, which are alternately arranged, and the second portion includes first pieces extending in the first direction and second pieces extending in the second direction, which are alternately arranged.

Abstract: According to one embodiment, a display device includes a display panel, a holographic element which reflects light having a specific incident angle and transmits light having an incident angle different from the specific incident angle, a retardation film provided between the display panel and the holographic element, a transflective element which reflects, of the light which passed through the holographic element, first circularly polarized light, and transmits second circularly polarized light rotating in an opposite direction of the first circularly polarized light, and a lens element which has a lens effect of condensing the second circularly polarized light which passed through the transflective element.

Abstract: When an acceleration request is issued, an electronic control unit for a hybrid vehicle performs control for producing an acceleration feeling of setting a target engine rotation speed to an initial rotation speed (=basic initial value+initial value correction value) which is lower than an optimal-fuel-efficiency rotation speed at which required engine power is able to be most efficiently output and increasing the engine rotation speed from the initial rotation speed to the optimal-fuel-efficiency rotation speed at a rotation speed increase rate (=basic increase rate+increase rate correction value) based on the elapse of time. When the target supercharging pressure is high, the initial value correction value is set to a greater value and the increase rate correction value is set to a greater value than when the target supercharging pressure is low.

Abstract: In a vehicle drive device, a second power source is connected to a first rotating element of a differential mechanism, and the other output shaft of a first output shaft and a second output shaft is connected to a third rotating element so as to be disconnectable and connectable by a disconnection-connection mechanism. A control device places the disconnection-connection mechanism in a disconnected state. When a second traveling mode in which the third rotating element is fixed to a fixing member through engagement of an engaging element is switched to a first traveling mode in which the disconnection-connection mechanism is placed in a connected state, the control device disengages the engaging element, executes synchronous control in which rotational speeds of the other output shaft and the third rotating element are synchronized by a second power source, and switches the disconnection-connection mechanism from the disconnected state to the connected state.

Abstract: An apparatus for estimating a remaining life of a vehicle component included in a vehicle, based on various kinds of remaining-life-related data that influence the remaining life. The apparatus includes: a data transmitting portion provided in the vehicle, and configured to correlate the remaining-life-related data with running of the vehicle and to transmit the remaining-life-related data correlated with the running of the vehicle, to a data management center provided outside the vehicle, via a wireless communication; a data-unobtained running-section specifying portion configured to specify a data-unobtained running section in which the remaining-life-related data has been unobtainable by the data management center; and a remaining-life calculating portion configured to estimate the remaining life, by taking account of a reduction of the remaining life of the vehicle component in the data-unobtained running section.

Abstract: According to one embodiment, an illumination device includes a light guide including an upper surface, a lower surface and a light entering surface, a first light emitting portion, a second light emitting portion, and a third light emitting portion. A first surface, a second surface, a third surface and a fourth surface of the upper surface are arranged in this order in a first direction. A width of the first surface is less than a width of the second surface, and the width of the second surface is less than a width of the third surface. An angle between the light entering surface and the first surface is an acute angle. The first light emitting portion, the second light emitting portion and the third light emitting portion face the light entering surface.

Abstract: A vehicle drive device includes: a brake that is provided with a plurality of friction plates, a first piston and a second piston, and a first piston hydraulic chamber and a second piston hydraulic chamber, and selectively fixes the third rotating element to a fixing member; a hydraulic control circuit that controls supply of the hydraulic pressure to the first piston hydraulic chamber and the second piston hydraulic chamber; and a control device. The control device controls the hydraulic control circuit such that the hydraulic pressure is supplied to the first piston hydraulic chamber and the second piston hydraulic chamber when the first traveling mode is set, and controls the hydraulic control circuit such that the hydraulic pressure is supplied only to one of the first piston hydraulic chamber and the second piston hydraulic chamber when the second traveling mode is set.