公开(公告)号：US4845420A

公开(公告)日：1989-07-04

申请号：US249652

申请日：1988-09-27

申请人： Hidekazu Oshizawa ,  Ryoichi Harada ,  Masami Okano

发明人： Hidekazu Oshizawa ,  Ryoichi Harada ,  Masami Okano

IPC分类号： H01H47/32 ,  H03K17/0422

CPC分类号： H01H47/325 ,  H03K17/0422

摘要： In a drive circuit device for an inductive load, the inductive load and a detecting resistor are incorporated in a current supply circuit in series relation to a drive transistor. An operational amplifier is operative in response to detecting voltage fed-back from the detecting resistor, for controlling the drive transistor, in turn, for controlling supply current flowing through the inductive load to a predetermined value. Turning-on and -off of the drive transistor are controlled by a switching element operative in response to a control signal, thereby carrying out current supply to an inductive load and stoppage of the current supply. A feed-back circuit is provided, in which a response element supplies feed-back current to be controlled by the operational amplifier, to the feed-back resistor, in response to the turning-off of the drive transistor. The operational amplifier carries out feed-back control without being saturated, even at the stoppage of the current supply to the inductive load.

公开(公告)号：US06256564B1

公开(公告)日：2001-07-03

申请号：US09500323

申请日：2000-02-08

申请人： Koichi Miyaguchi ,  Yasumasa Kanameda ,  Joerg Heckel ,  Masami Okano

发明人： Koichi Miyaguchi ,  Yasumasa Kanameda ,  Joerg Heckel ,  Masami Okano

IPC分类号： B60R2132

CPC分类号： B60R21/0133 ,  B60R21/013 ,  B60R2021/01006

摘要： A control apparatus of an occupant protection device detects whether a vehicle is in a collision requiring to drive the occupant protection device based on at least one front acceleration sensor provided in a front part of the vehicle, in addition to a collision detection based on a room acceleration sensor provided in a room of the vehicle. When the collision is detected based on the front acceleration sensor, an integrated value of an acceleration signal of the room acceleration sensor is increased. Since the front acceleration sensor is provided in the front part of the vehicle, the front acceleration sensor detects a collision acceleration early and gives a sensor output to the control unit, even in case of a collision in which a collision acceleration transmitted to the room acceleration sensor may be weakened. By this, since the integrated value of the room acceleration sensor is increased immediately, the control unit can exactly drive the occupant protection device such as an air bag without causing a delay in collision detection.

摘要翻译： 乘客保护装置的控制装置除了基于房间的碰撞检测之外，还基于设置在车辆的前部中的至少一个前部加速度传感器来检测车辆是否处于需要驱动乘员保护装置的碰撞中 加速度传感器设置在车辆的房间中。 当基于前加速度传感器检测到碰撞时，室内加速度传感器的加速度信号的积分值增加。 由于前部加速度传感器设置在车辆的前部，所以前加速度传感器能够提前检测碰撞加速度，并将传感器输出给控制单元，即使在发生碰撞加速度传递到室内加速度 传感器可能会变弱。 由此，由于室内加速度传感器的积分值立即增加，所以控制单元可以正确地驱动诸如气囊的乘员保护装置，而不会造成碰撞检测的延迟。

公开(公告)号：US5208484A

公开(公告)日：1993-05-04

申请号：US659563

申请日：1991-02-22

申请人： Masami Okano ,  Kunihiro Takeuchi ,  Hideyuki Kaneko

发明人： Masami Okano ,  Kunihiro Takeuchi ,  Hideyuki Kaneko

IPC分类号： G01P15/00 ,  B60R21/01 ,  B60R21/16 ,  G01P21/00

CPC分类号： B60R21/0133 ,  B60R21/0132 ,  G01P21/00

摘要： A control system for a vehicle safety device includes a pair of acceleration sensing circuits. The outputs of the acceleration sensing circuits correspond to a deceleration of the vehicle in a direction of running of a vehicle, and are in opposite phase with each other. A differential calculation device effects calculation in accordance with the difference between the outputs of the acceleration sensing circuits, so as to cause noises, applied to the acceleration sensing circuits, to cancel each other, thereby preventing an inadvertent activation of the vehicle safety device due to such noises. According to another alternative construction, in order to prevent the inadvertent activation of the vehicle safety device due to the noises, the opposite-phase outputs of the pair of acceleration sensing circuits are integrated by a pair of integrating circuits, and a pair of collision judgment circuits compare the outputs of the integrating circuits with respective threshold levels so as to judge whether a collision has occurred.

公开(公告)号：US5181011A

公开(公告)日：1993-01-19

申请号：US744414

申请日：1991-08-31

申请人： Masami Okano

发明人： Masami Okano

IPC分类号： B60R21/16 ,  B60R21/01 ,  B60R22/46

CPC分类号： B60R21/0132 ,  B60R21/0173

摘要： A method for checking the operability of a vehicular safety system which comprises an acceleration sensor for providing a pair of differential output signals, a first and second vehicle collision discriminators having a differential amplifier responsive to the pair of differential output signals, respectively, a pair of current controllers responsive to the first and second distriminators, respectively, whereby a firing current is supplied to a firing actuator through the pair of current controllers when the vehicle collision is detected. The method is characterized in that one of the differential amplifier is changed in arrangement so as to be able to respond to an in-phase input, and a test signal for making the acceleration sensor produce pair of check signals in phase is applied to the acceleration sensor. Then the operability of the safety system is checked on the basis of the potential developed at the firing actuator at that time without the activation of the actuator.

摘要翻译： 一种用于检查车辆安全系统的可操作性的方法，其包括用于提供一对差分输出信号的加速度传感器，具有响应于该对差分输出信号的差分放大器的第一和第二车辆碰撞鉴别器，一对 电流控制器分别响应于第一和第二分流器，由此当检测到车辆碰撞时，通过一对电流控制器将点火电流提供给击发致动器。 该方法的特征在于，差分放大器中的一个被改变以便能够响应于同相输入，并且用于使加速度传感器产生一对相位检查信号的测试信号被应用于加速度 传感器。 然后，基于当时在点火致动器处产生的电位而不使致动器激活来检查安全系统的可操作性。

公开(公告)号：US5112080A

公开(公告)日：1992-05-12

申请号：US612913

申请日：1990-11-14

申请人： Masami Okano

发明人： Masami Okano

IPC分类号： B60R21/16 ,  B60R21/01 ,  G05B9/02 ,  G05B23/02

CPC分类号： G05B23/02 ,  B60R21/0132 ,  B60R21/0133 ,  B60R21/0173

摘要： A sensor control circuit which includes a first sensor for detecting an event; a second sensor having identical characteristics with those of the first sensor for detecting the event at the same time; a processing unit having a first processing section for receiving and processing a first sensor signal from the first sensor and a second processing section for receiving and processing a second sensor signal from the second sensor; a first switching unit for switching in response to a first output from the first processing section; a second switching unit for switching in response to a second output from the second processing section; the first and second processing sections being made so as to turn on the first switching unit prior to the second switching unit in response to the first and second sensor signals; and a monitor unit for preventing current conduction to a load if the second switching unit is turned on prior to the first switching unit.

摘要翻译： 一种传感器控制电路，包括用于检测事件的第一传感器; 具有与第一传感器相同特性的第二传感器，用于同时检测事件; 处理单元，具有用于从第一传感器接收和处理第一传感器信号的第一处理部分和用于从第二传感器接收和处理第二传感器信号的第二处理部分; 第一切换单元，用于响应于来自第一处理部分的第一输出而切换; 第二切换单元，用于响应于来自第二处理部分的第二输出而切换; 所述第一和第二处理部分响应于所述第一和第二传感器信号而在所述第二切换单元之前使所述第一切换单元接通; 以及监视器单元，用于如果第二开关单元在第一开关单元之前导通，则防止电流传导到负载。

公开(公告)号：US06246937B1

公开(公告)日：2001-06-12

申请号：US09516626

申请日：2000-03-01

申请人： Koichi Miyaguchi ,  Yasumasa Kanameda ,  Joerg Heckel ,  Masami Okano

发明人： Koichi Miyaguchi ,  Yasumasa Kanameda ,  Joerg Heckel ,  Masami Okano

IPC分类号： B60R2132

CPC分类号： B60R21/0133 ,  B60R21/013 ,  B60R2021/01006 ,  B60R2021/01322

摘要： A control apparatus of an occupant protection device, in addition to a room acceleration sensor provided in a room of a vehicle, has at least one front acceleration sensor provided in a front part of the vehicle. The front acceleration sensor, when detecting a predetermined collision acceleration, gives a detection signal to a control unit. The control unit sets a second threshold value lower than a first threshold value if the detection signal is input, and drives the occupant protection device when an integrated value of an acceleration signal of the room acceleration sensor exceeds the second threshold value. Since the front acceleration sensor is provided in the front part of the vehicle, even when a collision acceleration transmitted to the room acceleration sensor is weakened, the front acceleration sensor detects the collision acceleration early and gives the detection signal to the control unit. By this, since the second threshold value lower than the first threshold value is set, the control unit can exactly drive the occupant protection device, such as an airbag, without causing a delay.

摘要翻译： 除了设置在车辆的房间中的室内加速度传感器之外，乘员保护装置的控制装置具有设置在车辆前部的至少一个前部加速度传感器。 前加速度传感器在检测到预定的碰撞加速度时向控制单元提供检测信号。 如果检测信号被输入，则控制单元设定低于第一阈值的第二阈值，并且当室内加速度传感器的加速度信号的积分值超过第二阈值时驱动乘员保护装置。 由于前部加速度传感器设置在车辆的前部，所以即使当发送到室内加速度传感器的碰撞加速度减弱时，前方加速度传感器也能够早期检测碰撞加速度，并且向控制单元提供检测信号。 由此，由于设定了低于第一阈值的第二阈值，所以控制单元可以精确地驱动诸如气囊的乘员保护装置，而不会造成延迟。

公开(公告)号：US5182459A

公开(公告)日：1993-01-26

申请号：US642951

申请日：1991-01-18

申请人： Masami Okano ,  Kunihiro Takeuchi

发明人： Masami Okano ,  Kunihiro Takeuchi

IPC分类号： F42B3/10 ,  B60R21/01 ,  B60R21/16

CPC分类号： B60R21/0133 ,  B60R21/0132

摘要： A control system for a vehicle safety device includes an acceleration sensing circuit, an analog collision detection system, a digital collision detection system, and a drive circuit which operates the vehicle safety device when the drive circuit simultaneously receives collision detection signals respectively from both of the analog and digital collision detection systems. A microcomputer of the digital collision detection system outputs test pulses to the acceleration sensing circuit, and checks at least one of the output of an integrating circuit of the analog collision detection system and an output of a comparator circuit of the analog collision detection system so as to detect a malfunction of the analog collision detection system, the outputs of the integrating circuit and the comparator circuit being produced in response to the test pulse.

摘要翻译： 一种用于车辆安全装置的控制系统包括加速度检测电路，模拟碰撞检测系统，数字碰撞检测系统和驱动电路，当驱动电路同时从两者中接收到碰撞检测信号时，操作车辆安全装置 模拟和数字碰撞检测系统。 数字碰撞检测系统的微计算机向加速度检测电路输出测试脉冲，并且检查模拟碰撞检测系统的积分电路的输出和模拟碰撞检测系统的比较器电路的输出中的至少一个，以便 为了检测模拟碰撞检测系统的故障，积分电路和比较器电路的输出是响应于测试脉冲而产生的。

公开(公告)号：US5122954A

公开(公告)日：1992-06-16

申请号：US503976

申请日：1990-04-04

申请人： Masami Okano

发明人： Masami Okano

IPC分类号： B60R21/16 ,  B60R21/01 ,  G08B21/00

CPC分类号： B60R21/013

摘要： In a control system for actuating a vehicle air-bag, a data representing change in the detected vehicle speed is calculated on the basis of the acceleration sensed by a vehicle acceleration sensor. The data is compared with a reference signal depending upon a temperature relating to that of an actuating member of the air-bag to discriminate whether or not the change in the detected vehicle speed has reached a level determined by the reference signal, whereby the complete inflation of the air-bag is ensured when a collision occurs without a time delay regardless of changes in temperature.

摘要翻译： 在用于致动车辆气囊的控制系统中，基于由车辆加速度传感器感测到的加速度来计算表示检测到的车速的变化的数据。 根据与气囊的致动构件的温度相关的温度，将数据与参考信号进行比较，以区分检测到的车速的变化是否已经达到由参考信号确定的水平，从而完全充气 当碰撞发生时，无论温度变化如何，都能确保气囊的时间延迟。

公开(公告)号：US4838080A

公开(公告)日：1989-06-13

申请号：US186076

申请日：1988-04-25

申请人： Masami Okano

发明人： Masami Okano

IPC分类号： F02M65/00

CPC分类号： F02M65/005

摘要： A fuel injection valve for injecting fuel into an internal combustion engine has a valve element lift sensor for producing an output signal in response to pressure developed by movement of a valve element. A detected valve element lifting signal produced from the valve element lift sensor is shaped into a waveform, and employed to generate a pulse having a pulse duration shorter than a minimum valve element lifting period and longer than the duration of a pulse issued from a waveform shaper after the supply of fuel to the fuel injection valve has been cut off. The generated pulse and the shaped valve element lifting signal are ANDed to remove noise from the output signal of the valve element lift sensor.

摘要翻译： 用于将燃料喷射到内燃机中的燃料喷射阀具有阀元件升程传感器，用于响应于阀元件的移动产生的压力产生输出信号。 从阀元件提升传感器产生的检测到的阀元件提升信号被成形为波形，并用于产生脉冲持续时间短于最小阀元件提升周期并且长于从波形整形器发出的脉冲持续时间的脉冲 在燃料喷射阀的燃料供应已被切断之后。 产生的脉冲和成形阀芯提升信号进行“与”操作，以从阀元件提升传感器的输出信号中消除噪音。

公开(公告)号：US4476832A

公开(公告)日：1984-10-16

申请号：US512407

申请日：1983-07-08

申请人： Kyoichi Fujimori ,  Masami Okano

发明人： Kyoichi Fujimori ,  Masami Okano

IPC分类号： F02B3/06 ,  F02D1/18 ,  F02D41/40 ,  F02M59/20

CPC分类号： F02D41/401 ,  F02D1/183 ,  F02B3/06 ,  F02D2041/2027 ,  F02D2200/063 ,  F02D41/408 ,  Y02T10/44

摘要： In a timing control device of a fuel injection pump which is so arranged that the fuel injection timing is adjusted in accordance with the duty ratio of a driving pulse signal applied to a timing valve, the frequency of the driving pulse signal is controlled in response to data showing the rotational speed of the fuel injection pump in such a way that the resonating phenomenon does not occur whereby the timer can be actuated smoothly without resonation of the timer.

摘要翻译： 在燃料喷射泵的定时控制装置中，其布置为根据施加到定时阀的驱动脉冲信号的占空比来调节燃料喷射正时，驱动脉冲信号的频率响应于 示出了燃料喷射泵的转速的数据，使得不会发生共振现象，由此定时器可以平稳地启动而没有定时器的共鸣。