Abstract: A cooling fin structure used in a cooler for an electric device includes a plurality of pin fins (71) arranged in a zigzag form in a coolant passage (80). Each of the pin fins (71) has a circular portion (72) having a circular cross-section, and irregularly shaped portions (73) provided contiguously on the upstream and downstream sides of the circular portion (72) as viewed in a direction of flow of the coolant. The irregularly shaped portions (73) have an outer peripheral surface (75) that is formed along a circumference (130) having a center at a center point (101) of the circular portion (72) of a pin fin (71, 71B) that is located adjacent to the pin fin (71, 71A) having the irregularly shaped portions (73), in an oblique direction relative to the direction of flow of the coolant.

Abstract: A cooling fin structure used in a cooler for an electric device includes a plurality of pin fins (71) arranged in a zigzag form in a coolant passage (80). Each of the pin fins (71) has a circular portion (72) having a circular cross-section, and irregularly shaped portions (73) provided contiguously on the upstream and downstream sides of the circular portion (72) as viewed in a direction of flow of the coolant. The irregularly shaped portions (73) have an outer peripheral surface (75) that is formed along a circumference (130) having a center at a center point (101) of the circular portion (72) of a pin fin (71, 71B) that is located adjacent to the pin fin (71, 71A) having the irregularly shaped portions (73), in an oblique direction relative to the direction of flow of the coolant.

Abstract: An information presentation apparatus for a vehicle is disclosed. The apparatus includes: a stimulator device located on a steering wheel of the vehicle and configured to generate stimulation at multiple sites on the steering wheel to provide skin sensation to a driver gripping the steering wheel; a direction information acquisition device configured to acquire direction information; and a controller configured to cause, in accordance with the acquired direction information, the stimulator device to successively generate the stimulation through the plurality of sites on the steering wheel to invoke an apparent movement that appears to the driver as if the skin sensation moves in a way indicative of a direction according to the direction information.

Abstract: A semiconductor element cooling apparatus includes: a first member whose first surface on which a semiconductor element is mounted, and whose second surface has fins that define coolant flow paths, and that extend in a first direction, and that stand from the second surface to a predetermined height, and that are spaced from each other by predetermined intervals; and a second member that defines the coolant flow paths that extend in the first direction. The fins have grooves which extend in a second direction that intersects the first direction, and which have a depth that extends from the distal end side of the fins toward the second surface. The depth of the grooves is smaller than the height of the fins. A protrusion-forming member is disposed in the grooves, and extends across adjacent fins, and forms protrusions in the coolant flow paths defined by the adjacent fins.

Abstract: An information presentation apparatus for a vehicle is disclosed. The apparatus includes: a stimulator device located on a steering wheel of the vehicle and configured to generate stimulation at multiple sites on the steering wheel to provide skin sensation to a driver gripping the steering wheel; a direction information acquisition device configured to acquire direction information; and a controller configured to cause, in accordance with the acquired direction information, the stimulator device to successively generate the stimulation through the plurality of sites on the steering wheel to invoke an apparent movement that appears to the driver as if the skin sensation moves in a way indicative of a direction according to the direction information.

Abstract: A detection device for side collision of a vehicle includes: an outer plate of a vehicle side door; an inner plate of the side door arranged separately from the outer plate; a reinforcing member arranged between the outer plate and the inner plate and having a bending rigidity higher than a bending rigidity of the outer plate; a detection subject member provided by at least one of the inner plate and a member fixed to the inner plate; a sensor detecting a separate distance between the detection subject member and the reinforcing member; and a determination element determining that the vehicle collides with an object based on an output value of the sensor.

Abstract: A semiconductor element cooling apparatus includes: a first member whose first surface on which a semiconductor element is mounted, and whose second surface has fins that define coolant flow paths, and that extend in a first direction, and that stand from the second surface to a predetermined height, and that are spaced from each other by predetermined intervals; and a second member that defines the coolant flow paths that extend in the first direction. The fins have grooves which extend in a second direction that intersects the first direction, and which have a depth that extends from the distal end side of the fins toward the second surface. The depth of the grooves is smaller than the height of the fins. A protrusion-forming member is disposed in the grooves, and extends across adjacent fins, and forms protrusions in the coolant flow paths defined by the adjacent fins.

Abstract: An electromagnetic impedance sensor detects an object made of conducting material or soft magnetic material with contact-free. The sensor includes: a detection coil; and a detection circuit for supplying electricity to the coil and for measuring electromagnetic impedance change in the coil. The detection coil includes multiple coil portions provided by one wire. One coil portion has a side adjacent to a corresponding side of another coil portion. The side and the corresponding side extend along with a direction, and the side has a current flowing direction, which is the same as the corresponding side.

Abstract: A collision detection device is provided with a coil which is arranged at an inner side of an outer panel of a body portion of a vehicle and faces the outer panel to generate a magnetic field in a direction toward the outer panel, and a collision determining unit for determining a collision with the body portion of the vehicle based on a variation of an inductance of the coil. The collision determining unit includes a resonance circuit which is constructed of the coil. When there occurs a collision with the vehicle body portion, a distance between the outer panel and the coil will decrease so that an inductance of the coil can instantly decrease. Therefore, a resonance frequency of the resonance circuit will increase and be detected, thus shortening the response time.

Abstract: A detection device for side collision of a vehicle includes: an outer plate of a vehicle side door; an inner plate of the side door arranged separately from the outer plate; a reinforcing member arranged between the outer plate and the inner plate and having a bending rigidity higher than a bending rigidity of the outer plate; a detection subject member provided by at least one of the inner plate and a member fixed to the inner plate; a sensor detecting a separate distance between the detection subject member and the reinforcing member; and a determination element determining that the vehicle collides with an object based on an output value of the sensor.

Abstract: A collision detector includes a deformable portion and a planar sensor accompanied by a process circuit and a collision determination unit. The deformable portion is configured to be deformed on a collision on an object. The planar sensor has a planar coil formed as a planar winding of winding wire to be deformed along the deformation of the deformable portion. The process circuit generates an electric signal that is in proportion to a self inductance Ls of the planar coil. The collision determination unit determines whether the object collided with the deformable member based on the change of the electric signal.

Abstract: An electromagnetic impedance sensor detects an object made of conducting material or soft magnetic material with contact-free. The sensor includes: a detection coil; and a detection circuit for supplying electricity to the coil and for measuring electromagnetic impedance change in the coil. The detection coil includes multiple coil portions provided by one wire. One coil portion has a side adjacent to a corresponding side of another coil portion. The side and the corresponding side extend along with a direction, and the side has a current flowing direction, which is the same as the corresponding side.

Abstract: A drive-assist information providing system is installed beforehand in a vehicle. The system provides drive-assist information to the driver when the vehicle is running, or temporarily halting, on one lane of a road within a predetermined assist zone. The system includes a first obtaining unit for obtaining a current position and behavior of the vehicle, and a second obtaining unit for obtaining a current position and behavior of an object around the vehicle. The system includes an identifying unit for identifying current circumstances of the vehicle and therearound based on the current position and behavior of the vehicle and on the current position and behavior of the object around the vehicle. The system includes a control unit for controlling how to provide the drive-assist information to the driver of the vehicle depending on the identified current circumstances of the vehicle and therearound.

Abstract: A collision detection device is provided with a coil which is arranged at an inner side of an outer panel of a body portion of a vehicle and faces the outer panel to generate a magnetic field in a direction toward the outer panel, and a collision determining unit for determining a collision with the body portion of the vehicle based on a variation of an inductance of the coil. The collision determining unit includes a resonance circuit which is constructed of the coil. When there occurs a collision with the vehicle body portion, a distance between the outer panel and the coil will decrease so that an inductance of the coil can instantly decrease. Therefore, a resonance frequency of the resonance circuit will increase and be detected, thus shortening the response time.

Abstract: A detection apparatus determines the type of an object approaching a vehicle. The detection apparatus is provided on a bumper of the vehicle, and comprises a coil as well as electrode lines to serve as the electrodes of a capacitor for detecting a human body. The detection apparatus is capable of differentiating a metallic body and a human body from each other based on variations in output voltage, which are caused by changes in their impedance.

Abstract: A detection apparatus determines the type of an object approaching a vehicle. The detection apparatus is provided on a bumper of the vehicle, and comprises a coil as well as electrode lines to serve as the electrodes of a capacitor for detecting a human body. The detection apparatus is capable of differentiating a metallic body and a human body from each other based on variations in output voltage, which are caused by changes in their impedance.