Abstract: A door handle apparatus for a vehicle includes a door handle adapted to be provided at a vehicle exterior of a vehicle door and operated in order to open/close the vehicle door, a sensing electrode provided inside of an upper-outer surface of the door handle, a sensor for detecting a user approaching the sensing electrode on the basis of a variation of an electric capacitance generated by the sensing electrode, controlling device for controlling the vehicle door so as to be locked/unlocked on the basis of information detected by the sensor and water-removing device provided on the upper-outer surface of the door handle in order to remove water retained in the vicinity of the sensing electrode.

Abstract: A transmitter portion 14 includes a control circuit 32, a driver circuit 33, and a wave detector circuit 35. The control circuit 32 generates control signals Vp, Vn based on a pulsed transmission signal So. The driver circuit 33, which is supplied with a battery voltage Vb, generates an output signal Sa to be sent to an antenna 13 based on the control signals Vp, Vn. The wave detector circuit 35 outputs a detection signal Sk having a voltage proportional to the level of the output signal Sa (transmission power level). The control circuit 32 changes the pulse widths of the control signals Vp, Vn based on the voltage level of the detection signal Sk. As a result, electric power consumption is reduced and enlargement of an apparatus is suppressed while maintaining the transmission power level constant.

Abstract: An antenna device includes a core portion made of magnetic material, a wire coiled around the core portion leaving a leading end portion by a predetermined length, a case holding the core portion on which the wire is coiled and fixed on a body of a vehicle, and an elastic member provided between the core portion and the case for holding the core portion relative to the case.

Abstract: A door handle device for a vehicle includes a first handle member made of resin and formed with a housing portion which houses an electronic component and is arranged opposing to the outer panel and a second handle member covering the housing portion and assembled to the first handle member. A first connector, which protrudes in a vehicle width direction penetrating through the outer panel, is provided at an end of the first handle member. A board mounted with a control circuit connected to the electronic component is housed in the housing portion in a state where the board is connected to a terminal of the first connector and a terminal of the electronic component.

Abstract: A door handle apparatus for a vehicle includes a door handle including an outer side handle portion formed with a grip portion, a rotating portion rotatably supported by a supporting member, an operating portion operating a door opening and closing mechanism, and an encasement accommodating electronic components, an unlock electrode accommodated in the encasement and configuring an unlock capacitive sensor detecting changes of an electric capacity between the unlock electrode and the outer panel, an unlock signal circuit transmitting an unlock signal based on the changes of the electric capacity between the unlock electrode and the outer panel, and a lock electrode provided between an end of the grip portion at the side of the rotating portion and the rotating portion and configuring a lock capacitive sensor detecting the changes of the electric capacity.

Abstract: A human body detecting device for detecting an approach of a human body includes a sensor electrode provided in a housing and having detecting portions for detecting the approach of the human body to the housing. Each of the detecting portions is provided at a respective surface side in the housing.

Abstract: A human body detecting device includes a door handle provided on an outer panel, a first sensor electrode provided on the obverse side of the door handle, and a second sensor electrode provided on the reverse side of the door handle. The human body is detected in response to variation of capacitance between the outer panel and two sensor electrodes.

Abstract: An antenna device includes a core portion made of magnetic material, a wire coiled around the core portion leaving a leading end portion by a predetermined length, a case holding the core portion on which the wire is coiled and fixed on a body of a vehicle, and an elastic member provided between the core portion and the case for holding the core portion relative to the case.

Abstract: A push switch apparatus includes a switch case adapted to be a base member, a switch mounted on the switch case, a switch cap made of an elastic material and supported on the switch case for covering the switch, a switch button supported by the base member and having an actuating portion for pushing the switch and an switch plate mounted on the switch case and arranged between the switch cap and the switch button. The switch plate having a contact surface contacts the switch button when the actuating portion of the switch button pushes the switch.

Abstract: A door opening/closing device for a vehicle includes a control mechanism recognizing an opening/closing operation of a vehicle door based upon an operation of a door handle, operating a door lock mechanism so as to unlock the vehicle door when the opening operation of the vehicle door is recognized, operating the door lock mechanism so as to lock the vehicle door when the closing operation of the vehicle door is recognized, and controlling a light-emitting means included in the door handle to light-emit In response to the operation of the door lock mechanism.

Abstract: A sensor electrode which detects an approach of a person to a vehicle can be housed in a door handle body for vehicle and is prevented from giving an adverse influence to transmission signals outputted from a transmission antenna. Slits are formed in a bottom portion of the body. The sensor electrode covered with a resin mold is pushed into the inside of the slit.

Abstract: A push switch apparatus includes a switch case adapted to be a base member, a switch mounted on the switch case, a switch cap made of an elastic material and supported on the switch case for covering the switch, a switch button supported by the base member and having an actuating portion for pushing the switch and an switch plate mounted on the switch case and arranged between the switch cap and the switch button. The switch plate having a contact surface contacts the switch button when the actuating portion of the switch button pushes the switch.

Abstract: A door handle for a vehicle includes a handle main body fixed to a vehicle door and possessing a housing portion at an opposite side of the vehicle door, an antenna housed in the housing portion so as to arrange an axis of the antenna to be substantially parallel to a longitudinal direction of the door handle main body, and s metal made cover for coating the housing portion from the opposite side of the vehicle door. The cover within an axial direction dimension of the antenna is arranged to be more distant from the vehicle door than the axis of the antenna.

Abstract: A door opening/closing device for vehicle including a controlling means for controlling a vehicle door locking or unlocking operation by confirming a user's intent for locking or unlocking operation of the vehicle door includes a handle frame provided at the vehicle door, a handle member provided outside of the vehicle door and supported by the handle frame for operating opening or closing of the vehicle door, a handle cap provided outside the vehicle door and supported with the handle frame, a light decorative member provided at the handle cap, a luminous member accommodated in the handle frame and activated by the controlling means in response to the locking or unlocking condition of the vehicle door, and a light guiding means connecting the light decorative member and the luminous member.

Abstract: A vehicle door lock system has a lock mechanism for locking or unlocking the vehicle door. A control mechanism for controlling an operation of the lock mechanism includes first and second resonators. The first resonator resonates at a predetermined first value Q for transmitting a first signal to the outside of the vehicle. The second resonator is connected in series with the first resonator and resonates at a second value Q which is greater than the first value Q, and changing a resonant condition in accordance with a change of a capacitance. A single actuator is provided for actuating the first and second resonators. A switching mechanism is provided which utilizes the actuator for alternatively switching actuation between the first and the second resonators. The control mechanism controls the switching operation of the switching mechanism and the operation of the door lock mechanism in accordance with the resonant condition of the second resonator.

Abstract: A control method for a door lock device performs an unlocking operation of a lock mechanism of a vehicle door by energizing and actuating an actuator in response to an unlocking command from a vehicle user. The method has: a first time period (T1) for energizing the actuator in accordance with the unlocking command by the user; a second time period (T2) for returning an operation portion provided on a vehicle from an operated position to a normal position; and a third time period (T3) during which the actuator starts the unlocking operation and complete the unlocking of the lock mechanism. The first time period is determined to be equal to or longer than a sum of the second time period and the third time period.

Abstract: An antenna device includes a door handle provided outside of a vehicle door for opening the vehicle door, and an antenna provided inside of the door handle and generating a magnetic field component in a direction different from a perpendicular direction to an outer surface of the vehicle door.

Abstract: In a human body detector, a wave-detection circuit for detecting waves of a resonance voltage is connected to a sensor resonance circuit that varies a constant frequency voltage in accordance with a change in the capacitance of a sensor electrode. The wave-detection circuit is connected to a differentiator that acquires a changing rate by differentiating the wave-detection voltage with respect to time, and allows a voltage to pass if the changing rate of the voltage is greater than or equal to a predetermined value. The differentiator is connected to a high-pass filter that allows passage of a voltage whose changing rate is greater than or equal to a second predetermined value. The high-pass filter is connected to a comparator whose non-inversion input terminal is connected to a power source that applies thereto a reference voltage.

Abstract: A door opening/closing device for a vehicle includes a control mechanism recognizing an opening/closing operation of a vehicle door based upon an operation of a door handle, operating a door lock mechanism so as to unlock the vehicle door when the opening operation of the vehicle door is recognized, operating the door lock mechanism so as to lock the vehicle door when the closing operation of the vehicle door is recognized, and controlling a light-emitting means included in the door handle to light-emit in response to the operation of the door lock mechanism.

Abstract: A human body detecting d vice includes a door handle provided on an outer panel, a first sensor electrode provided on the obverse side of the door handle, and a second sensor electrode provided on the reverse side of the door handle. The human body is detected in response to variation of capacitance between the outer panel and two sensor electrodes.