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1. 发明专利

DE69203007D1 未知
公开(公告)号：DE69203007D1
公开(公告)日：1995-07-27
申请号：DE69203007
申请日：1992-03-06
申请人： NIPPON DENSO CO
发明人： ASO MAKOTO , KONDO AKIRA
IPC分类号： B60R21/16 , B60R21/01 , G01R31/00 , B60R21/00
摘要： An apparatus for failure identification suitable for determining between existence and nonexistence of failure of the squib (10) in occupant protecting system (U). The first terminal voltage generated between both the terminals of the squib (10) when the first monitor current is passed through the squib, and the second terminal voltage generated between both the terminals of the squib when the second monitor current is passed through the squib. The first and second terminal voltages are amplified by the differential amplifier circuit (60) into the first and second differentially amplified voltage. Thereafter, the difference between the first differentially amplified voltage and the second differentially amplified voltage is calculated to obtain the monitor voltage difference and it is compared with the reference voltage, and thereupon, decision between existence and nonexistence of a short-circuit in the squib (10) is made.

2. 发明专利

DE69101169D1 未知
公开(公告)号：DE69101169D1
公开(公告)日：1994-03-24
申请号：DE69101169
申请日：1991-04-17
申请人： NIPPON DENSO CO
发明人： MASEGI MITSUHIKO , KONDO AKIRA , MUTOH MASAHITO , FUJITA KOICHI
IPC分类号： B60R21/16 , B60R21/01 , B60R21/00

3. 发明专利

DE3913628A1 未知
公开(公告)号：DE3913628A1
公开(公告)日：1989-11-02
申请号：DE3913628
申请日：1989-04-25
申请人： NIPPON DENSO CO
发明人： MASEGI MITSUHIKO , SAKURAI MASAO , NAITOU MOTOHARU , KONDO AKIRA , OTA TOSHIAKI
IPC分类号： B60R21/01 , B60R21/16 , G01R31/00 , H02J9/06

4. 发明专利

DE69101169T2 未知
公开(公告)号：DE69101169T2
公开(公告)日：1994-11-17
申请号：DE69101169
申请日：1991-04-17
申请人： NIPPON DENSO CO
发明人： MASEGI MITSUHIKO , KONDO AKIRA , MUTOH MASAHITO , FUJITA KOICHI
IPC分类号： B60R21/16 , B60R21/01 , B60R21/00

5. 发明专利

DE4321589A1 Fault monitoring system for motor vehicle occupant restraint airbag system - generates fault signal when signals from both reset and state signal generators, at ignition and connection of battery, are received 未知
公开(公告)号：DE4321589A1
公开(公告)日：1994-01-13
申请号：DE4321589
申请日：1993-06-29
申请人： NIPPON DENSO CO
发明人： KONDO AKIRA
IPC分类号： B60R21/16 , B60R21/01 , G01D18/00 , G01P21/00 , B60R21/32 , B60R21/02 , B60R16/02
摘要： A reset signal generator responds to the switching on of an on-board current source (20) by producing a reset signal . A state signal is generated associated with the switched on state. A fault monitoring device monitors for faults in the occupant restraint arrangement when both signals are fed into it. The state signal is generated when the charge voltage in a buffer capacitor (31) in an associated auxiliary current source is lower than the voltage level corresp. to a fully charged capacitor. USE/ADVANTAGE - E.g. for use with airbag system with collision detector (70). System prevents erroneous triggering of safety system.

6. 发明专利

DE68905083D1 未知
公开(公告)号：DE68905083D1
公开(公告)日：1993-04-08
申请号：DE68905083
申请日：1989-06-01
申请人： NIPPON DENSO CO
发明人： NAITOU MOTOHARU , MASEGI AZA NAKATA , KONDO AKIRA
IPC分类号： B60R21/16 , B60R21/01 , G07C5/08 , B60R21/32
摘要： An acceleration sensor (5) detects an acceleration of a vehicle which is caused by a collision of the vehicle. A safety device (3b) protects an occupant in the vehicle from the collision of the vehicle. A trigger device triggers the safety device. The trigger device is activated in response to an output signal from the acceleration sensor. An operation of the trigger device is detected and a detection signal representative thereof is generated. A first judgment device judges whether or not the trigger device is activated on the basis of the detection signal. When the trigger device is judged to be activated, a second judgment device judges whether the activation of the trigger device is caused by a correct cause or a false cause on the basis of the output signal from the acceleration sensor. The judgment by the second judgment device is allowed only once and subsequent judgments by the second judgment device are inhibited. A result of the judgment by the second judgment device is recorded.

7. 发明专利

DE4210861A1 未知
公开(公告)号：DE4210861A1
公开(公告)日：1992-10-08
申请号：DE4210861
申请日：1992-04-01
申请人： NIPPON DENSO CO
发明人： KONDO AKIRA
IPC分类号： B60R21/16 , B60R21/01
摘要： An electric control circuit for a passenger protection system in an automotive vehicle includes an electric power source, an acceleration sensor arranged to produce an acceleration signal therefrom in the occurrence of a vehicle collision and an electrically operated actuator including a primer having a first terminal in series with the power source and a second terminal in series with the acceleration sensor to be grounded therethrough in response to the acceleration signal from the sensor, wherein the second terminal of the primer is directly grounded when a voltage appearing at a conductor between the second terminal of the primer and the acceleration sensor becomes lower than a predetermined value to ensure activation of the primer.

8. 发明专利

DE68923220T2 未知
公开(公告)号：DE68923220T2
公开(公告)日：1996-03-14
申请号：DE68923220
申请日：1989-05-23
申请人： NIPPON DENSO CO
发明人： KONDO AKIRA , NAITOU MOTOHARU , OTA TOSHIAKI , MASEGI MITSUHIKO , SAKURAI MASAO , MUTO MASAHITO , IYODA MOTOMI
IPC分类号： B60R21/00 , B60R21/01 , B60R21/16 , G01R19/165 , G01R31/00
摘要： A releasing circuit (S) for actuating a vehicular safety device includes a sensor arranged to provide an acceleration signal responsive to accelerations of the vehicle and an evaluating circuit (30) for setting a predetermined condition for activating a release element of the safety device and responsive to the acceleration signal for effecting the activation of the release element when the predetermined condition has been satisfied by the acceleration signal. A checking circuit (50) for the releasing circuit (S) includes a check signal generator (80) for producing therefrom a check signal at a predetermined level which does not satisfy the predetermined condition and for applying the check signal to a circuit between the sensor and evaluating circuit (30), a comparator (52) responsive to the check signal for determining as to whether or not there is a defect or malfunction in the circuit between the second and evaluating circuit (30), and a second comparator (53) responsive to an output signal of the evaluating circuit (30) ascertaining as to whether or not the release element has been properly activated in response to the acceleration signal under control of the evaluating circuit (30).

9. 发明专利

DE19518340A1 Orientation sensor providing electrical analogue of angular position 未知
公开(公告)号：DE19518340A1
公开(公告)日：1995-11-30
申请号：DE19518340
申请日：1995-05-18
申请人： NIPPON DENSO CO
发明人： SUZUKI HARUHIKO , TAMURA TAKAHIRO , MIYAHARA MASAHIKO , YAMAGUCHI HIROAKI , OHUCHI HIDEAKI , KONDO AKIRA , MATSUSHITA TOSHIKAZU
IPC分类号： G01B7/30 , G01D5/165 , H01C10/32
摘要： An orientation sensor which converts the angular position of the shaft of eg a control valve into an equivalent electrical resistance has a rotor (40, 43, 46) of plastic material which latter pairs of ultrasonically welded together after assembly. The underside (59) of the cover (50) is screen printed to incorporate a resistor element and a resistance increment proportional to rotation is available via the spring contact system (23, 69). The rotor (40, 43, 46) is provided with axial thrust to maintain pressure on the contacts (23) via a concentric compression spring (68).

10. 发明专利

DE69203007T2 未知
公开(公告)号：DE69203007T2
公开(公告)日：1995-11-23
申请号：DE69203007
申请日：1992-03-06
申请人： NIPPON DENSO CO
发明人： ASO MAKOTO , KONDO AKIRA
IPC分类号： B60R21/16 , B60R21/01 , G01R31/00 , B60R21/00
摘要： An apparatus for failure identification suitable for determining between existence and nonexistence of failure of the squib (10) in occupant protecting system (U). The first terminal voltage generated between both the terminals of the squib (10) when the first monitor current is passed through the squib, and the second terminal voltage generated between both the terminals of the squib when the second monitor current is passed through the squib. The first and second terminal voltages are amplified by the differential amplifier circuit (60) into the first and second differentially amplified voltage. Thereafter, the difference between the first differentially amplified voltage and the second differentially amplified voltage is calculated to obtain the monitor voltage difference and it is compared with the reference voltage, and thereupon, decision between existence and nonexistence of a short-circuit in the squib (10) is made.

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