Abstract: An electric power conversion apparatus includes: a pair of input terminals including first and second input terminals; a pair of output terminals; a transformer; a switching circuit; a rectifying circuit; a smoothing circuit; and a control circuit that performs switching driving. In the switching circuit, four switching devices are disposed in series on a first coupling line, and two input capacitors are disposed in series on a second coupling line; a first diode is disposed between a first node and a second node, and a second diode is disposed between a third node and the first node; a resonant coil and a primary winding are disposed in series between a fourth node and the first node; and a first clamp diode is disposed between a fifth node and the first input terminal, and a second clamp diode is disposed between the second input terminal and the fifth node.

Abstract: A hydraulic shock absorber includes a control valve that applies flow path resistance to hydraulic oil flowing from an opening of a rod to a reservoir, and a guide member that guides the hydraulic oil introduced from the opening to the control valve. The control valve includes a valve body located on a center line of the rod and displaced along the center line. The guide member is located between an upper end of the rod and the control valve and on the center line. An oil inlet of the guide member is located radially outside an outer peripheral surface of the rod and can introduce the hydraulic oil from the opening.

Abstract: A power conversion device that can be shared by batteries having different output voltages is disclosed. This power conversion device converts an output voltage of a battery into an AC voltage or a DC voltage lower in voltage than the output voltage of the battery, and includes a multi-winding transformer (1), and a first DC/AC converter (11) and a second DC/AC converter (12) whose DC sides are connected to the battery. In a case where the output voltage of the battery is larger than a withstand voltage of semiconductor switching elements, respective DC inputs of the first DC/AC converter (11) and the second DC/AC converter (12) are connected in series to each other.

Abstract: An onboard control system according to an embodiment of the present invention includes a storage device that is used in controlling an automobile, a failure symptom diagnosis device that diagnoses a failure symptom of the storage device, and a frequency changing circuit that changes an operation frequency of the storage device to a second frequency, which is higher than a first frequency that is a frequency used during normal control of the automobile, when the failure symptom diagnosis device diagnoses the storage device.

Abstract: A damping force generation device includes: a valve limiting the flow of oil and generating damping force; a back pressure chamber applying pressure in a valve closing direction to the valve; a discharge flow path allowing oil to flow out from the back pressure chamber; a valve on the discharge flow path including a control valve varying the area of the discharge flow path and a control seat on which the control valve can be seated; a pressing part that can contact with a side of the control valve opposite a side facing the control seat; a coil spring causing bias in a direction that the control seat and the control valve approach each other; and a solenoid part applying thrust toward the control seat to the control valve via the pressing part.

Abstract: A shock absorbing device includes: an annular elastic member; a seal member disposed on a side opposite a first piston unit and capable of contacting an inner peripheral surface of a collar; and a restricting member to restrict axial movement of the elastic member and the seal member. The seal member includes: a base portion; and a projection protruding annularly toward the elastic member from an opposing surface facing the elastic member and capable of contacting an outer periphery of the elastic member. The base portion includes recesses formed inward of the projection and recessed from the opposing surface to a side opposite the elastic member. The projection includes a groove formed in at least a portion thereof to provide communication between inside and outside of the projection.

Abstract: A method of modeling a two-wheeler stable travel control system, includes: acquiring a vehicle model obtained by modeling a two-wheeler into a model having centers of gravity as defined herein; creating a linear equation of motion for the vehicle model on a condition that an action term indicating a sum of acting forces acting on the respective centers of gravity and an inertia term indicating a sum of inertial forces acting on the respective centers of gravity are balanced; converting the linear equation of motion into a state equation; acquiring, by analysis based on a root trajectory of the state equation, a feedback gain allowing stable travel of the vehicle model at a speed within a predetermined speed range; and creating a model of the two-wheeler stable travel control system that performs negative feedback control using the obtained feedback gain.

Abstract: A vehicle information collection system includes a collection condition acquisition unit (201) acquiring conditions for verifying an update model, an external environment acquisition unit (202) acquiring external travelling environmental information, a verification location setting unit (203) setting, as a destination, a verification location on the basis of respective information of the external environment acquisition unit (202) and the collection condition acquisition unit (201), a notification unit (204) notifying a vehicle operator of the verification location, a response receiving unit (205) receiving operator's response of permission for or refusal of movement to the verification location, and a guidance control unit (206) guiding a vehicle to the verification location according to the response of the permission and information on the verification location.

Abstract: In order to provide an electronic control device that can flexibly cope with in-vehicle layout and assembly for each vehicle at low cost and can contribute to a reduction in the total cost of the vehicle, the following configuration is adopted.

Abstract: An object is to enable specification of an in-vehicle electronic device that is a signer from a digital signature in a case where authenticity of the digital signature cannot be verified while protecting privacy. A key generation management device 11 generates and manages a signature key used for generation of a signature to be added to vehicle data transmitted from an in-vehicle electronic device 21.

Abstract: A sensor device includes: an LC oscillation circuit including a coil in which an inductance changes according to a displacement amount of an object and a DC resistor changes according to a temperature, and an oscillation unit including an LC resonance capacitor electrically connected to the coil; and a switching unit including a switch that switches whether to electrically connect one end of the coil to a predetermined DC potential, when the switch is off, the LC oscillation circuit is in a first state in which an AC signal whose frequency changes according to the displacement amount of the object is output, and when the switch is on, the LC oscillation circuit stops oscillation and is in a second state in which a DC voltage whose voltage value changes according to the temperature of the coil is output from a common connection point.

Abstract: A server of a vehicle software update system that manages software updates of a plurality of function-specific ECUs in a vehicle after transfer includes: an acquisition unit A that acquires mounted function information of a vehicle before transfer; an acquisition unit B that acquires mounted function information of the vehicle after transfer; an acquisition unit C that acquires user-selected function information from a user terminal; a difference extraction unit that extracts a difference among the mounted function information of the vehicle before transfer, the mounted function information of the vehicle after transfer, and the user-selected function information; and an update processing determination unit that selects necessary software update processing according to a content of the difference and generates update function information.

Abstract: A vehicle control device includes a recognition unit configured to recognize external world information of a periphery of an own vehicle and detect an evacuation candidate area for evacuating the own vehicle that passes by an oncoming vehicle, an availability determination unit configured to determine availability of the evacuation candidate area detected by the recognition unit, and an evacuation area setting unit configured to set the evacuation candidate area determined as usable by the availability determination unit as an evacuation area.

Abstract: An external world information acquisition unit that acquires external world information around an own vehicle on the basis of a result recognized by an external world recognition unit, a visible region acquisition unit that acquires a visible region as a travelable region visible from the own vehicle on the basis of the external world information, an oncoming vehicle state determination unit that determines a state of the oncoming vehicle on the basis of the visible region and information on a behavior of the oncoming vehicle, a blind region acquisition unit that acquires a blind region that is a blind spot of the own vehicle on the basis of the state of the oncoming vehicle, the visible region, and a position of the oncoming vehicle acquired based on the external world information, and a virtual evacuation region acquisition unit that acquires a virtual evacuation region for the own vehicle and the oncoming vehicle to pass each other based on the visible region and the blind region are provided.

Abstract: A key generation device includes a verification unit that executes verification of a startup program, an acquisition unit that acquires an execution program from another device, and a key generation unit that generates a key for verifying the acquired execution program, in which the key generation unit generates the key after the startup program is verified.

Abstract: An object of the present invention is to achieve a motor control device being a technology that uses a motor as a heater while the motor is not in rotation, that is capable of distributing generation of heat through effective use of three-phase coils, that is, by changing the current application cycles to the respective phases on the basis of the temperature difference between the UVW phases, and that is capable of increasing the thermal energy usable for raising the temperature and of improving the torque stability at the time of switching from warm-up to drive. A motor control device 100 controls an alternating-current motor 16 driven by a power conversion unit 15 that performs power conversion from direct-current power to alternating-current power.

Abstract: An object of the present invention is to obtain a vehicle control device capable of reducing a processing load of an in-vehicle electronic control device (100), acquiring diagnostic log information of a nonvolatile memory (110) in an actual environment, and grasping a lifespan of the nonvolatile memory. The vehicle control device of the present invention acquires the diagnostic log information of the nonvolatile memory in order to monitor the lifespan of the nonvolatile memory in a vehicle control system equipped with the nonvolatile memory. At this time, the acquisition of the diagnostic log information is determined in response to communication with a server (300) that is an off-vehicle device.

Abstract: There are provided an object detection device and an object detection method capable of determining an object as a stationary object even in a situation where the object is determined as a moving object that reciprocates left and right due to an angle error, for example. For example, it is determined whether an object (detection target object) has moved in each of the clockwise and counterclockwise directions (rightward and leftward directions) in a circumferential direction, and the reliability is added or subtracted in each of the clockwise and counterclockwise directions (rightward and leftward directions). Then, it is determined whether the object (detection target object) is a moving object (including a moving direction) or a stationary object using the result of the added/subtracted reliability.

Abstract: A cylindrical body fitting structure and an inverter including: a first cylindrical body having a first cylindrical fitting portion that is fitted with another cylindrical body; and a second cylindrical body having a second cylindrical fitting portion that is fitted with the t first cylindrical fitting portion, the first cylindrical body and the second cylindrical body being fitted and connected with each other, wherein at least one of the first cylindrical fitting portion and the second cylindrical fitting portion is provided with a press fitting load release portion that is bent in a radial direction when the first cylindrical fitting portion and the second cylindrical fitting portion are fitted with each other.

Abstract: A mechanical-electrical integrated rotary electric machine device includes: a rotary electric machine; a power conversion device; a housing that houses the rotary electric machine and the power conversion device; a busbar module that electrically connects a plurality of first connecting parts of the power conversion device to a plurality of second connecting parts of the rotary electric machine; an opening formed on a wall of the housing, the opening being counter to the plurality of second connecting parts; and a cover that covers the opening.