专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06175299B1 Analog signal processing system for determining airbag deployment 失效
标题翻译：用于确定安全气囊部署的模拟信号处理系统
公开(公告)号：US06175299B1
公开(公告)日：2001-01-16
申请号：US08610021
申请日：1996-03-04
申请人： Gregory Jon Manlove , Walter Kirk Kosiak , Richard Joseph Ravas , Jiyao Liu
发明人： Gregory Jon Manlove , Walter Kirk Kosiak , Richard Joseph Ravas , Jiyao Liu
IPC分类号： B60Q100
CPC分类号： B60R21/01332 , B60R21/0132 , B60R21/01336
摘要： An analog signal processing system for determining airbag deployment includes a first low pass filter receiving a conditioned analog accelerometer signal and providing an analog acceleration signal therefrom. A first comparator/latch circuit receives the analog acceleration signal and provides a first signal to a logic circuit. The analog acceleration signal is further provided to a first integrator which converts the signal to a first velocity signal and provides the first velocity signal to a second comparator/latch circuit which provides a second logic level signal to the logic circuit. A second low pass filter receives the analog acceleration signal and provides a low frequency analog acceleration signal to a third comparator/latch circuit which provides a third signal to the logic circuit. The low frequency analog acceleration signal is further received by a second integrator circuit which converts the signal to a second velocity signal and provides the second velocity signal to a fourth comparator/latch circuit which provides a fourth signal to the logic circuit. The logic circuit performs a logic operation on the various logic level signals to provide an airbag deployment signal therefrom. Each comparator/latch circuit has a comparator threshold value associated therewith provided by a threshold circuit. The system is enabled for a preset time period after detecting a predefined acceleration level to provide a time-independent analog algorithm for evaluating the analog acceleration signal for possible airbag deployment.
摘要翻译：一种用于确定安全气囊部署的模拟信号处理系统包括：第一低通滤波器，其接收经调节的模拟加速度计信号并从其提供模拟加速度信号。第一比较器/锁存电路接收模拟加速度信号并向逻辑电路提供第一信号。模拟加速度信号进一步提供给第一积分器，该积分器将该信号转换成第一速度信号，并将第一速度信号提供给向逻辑电路提供第二逻辑电平信号的第二比较器/锁存电路。第二低通滤波器接收模拟加速度信号，并向第三比较器/锁存电路提供低频模拟加速度信号，该第三比较器/锁存电路向逻辑电路提供第三信号。低频模拟加速度信号由第二积分器电路进一步接收，该第二积分器电路将信号转换为第二速度信号，并将第二速度信号提供给向逻辑电路提供第四信号的第四比较器/锁存电路。逻辑电路对各种逻辑电平信号进行逻辑运算，从而提供气囊展开信号。每个比较器/锁存电路具有由阈值电路提供的与其相关联的比较器阈值。在检测到预定义的加速度水平之后，系统启用预设时间段，以提供用于评估模拟加速度信号以用于可能的气囊部署的时间无关的模拟算法。

2. 发明授权

US5461567A Supplemental inflatable restraint system having a rear impact algorithm for seat belt pretensioner 失效
标题翻译：补充充气约束系统，具有安全带预紧器的后冲击算法
公开(公告)号：US5461567A
公开(公告)日：1995-10-24
申请号：US205468
申请日：1994-03-04
申请人： Jon P. Kelley , Jiyao Liu
发明人： Jon P. Kelley , Jiyao Liu
IPC分类号： B60R21/01 , B60R21/16 , B60R21/18 , B60R22/343
CPC分类号： B60R21/0132 , B60R21/01336 , B60R21/015 , B60R2021/01034
摘要： A system having an accelerometer and a micro-controller responsive to acceleration signals for deploying an air bag as well as activating a pretensioner upon frontal impact includes an algorithm for activating the pretensioner upon rear impact. A frontal crash algorithm is executed when the acceleration exceeds a negative threshold and a rear impact algorithm is enabled when the acceleration exceeds a positive threshold. Rear impact severity is tested by integrating positive acceleration samples and issuing an activation command when the integrated value attains a severity threshold value. Noise immunity results from the positive threshold and from resetting the integrated value to zero whenever a negative acceleration sample intervenes in the severity test.
摘要翻译：具有加速度计和微控制器的系统，其响应用于展开气囊的加速度信号以及在正面撞击时激活预紧器包括用于在后部冲击时启动预紧器的算法。当加速度超过负阈值时，执行正面碰撞算法，并且当加速度超过正阈值时启用后冲击算法。当积分值达到严重性阈值时，通过积分正加速度样本和发出激活命令来测试后冲击严重性。当负加速度采样干预严重性测试时，噪声抗扰度来自正阈值并将积分值重置为零。

3. 发明授权

US5999871A Control method for variable level airbag inflation 失效
标题翻译：可变气囊膨胀控制方法
公开(公告)号：US5999871A
公开(公告)日：1999-12-07
申请号：US695814
申请日：1996-08-05
申请人： Jiyao Liu
发明人： Jiyao Liu
IPC分类号： G01P15/00 , B60R21/01 , B60R21/16 , B60R21/14
CPC分类号： B60R21/013
摘要： An airbag with two or more inflators can be inflated in successive stages separated by a time interval, inflated simultaneously or some not inflated at all, depending on crash severity. The first stage inflation is controlled in accordance with a conventional algorithm for single stage deployment. Deployment time and velocity parameters used for the first stage are employed to determine the crash severity and the time interval of the next stage. There is no time delay in the case of a very severe crash, but for a moderately severe crash the time interval is proportional to the difference of the time or velocity and a selected minimum time or velocity value.
摘要翻译：具有两个或更多个充气器的气囊可以在连续的阶段中被充气，间隔时间间隔，根据碰撞严重性同时充气或一些不充气。第一阶段的通货膨胀根据用于单阶段部署的常规算法进行控制。用于第一阶段的部署时间和速度参数用于确定碰撞严重性和下一阶段的时间间隔。在非常严重的碰撞的情况下没有时间延迟，但是对于中等严重的碰撞，时间间隔与时间或速度的差异以及选定的最小时间或速度值成比例。

4. 发明授权

US5801619A Analog signal processing system and decision logic for controlling airbag deployment 失效
标题翻译：用于控制气囊部署的模拟信号处理系统和决策逻辑
公开(公告)号：US5801619A
公开(公告)日：1998-09-01
申请号：US927588
申请日：1997-09-11
申请人： Jiyao Liu , Jon Paul Kelley
发明人： Jiyao Liu , Jon Paul Kelley
IPC分类号： B60R21/01 , B60Q1/00
CPC分类号： B60R21/01332 , B60R21/0132 , B60R21/0133 , B60R21/01336 , B60R2021/01322
摘要： An analog signal processing system and decision logic for controlling airbag deployment includes low pass filter circuitry, differentiation circuitry and integration circuitry operable to receive an analog acceleration signal and provide a differentiated analog bandpass acceleration signal, a reduced bandpass analog acceleration signal, a low pass analog acceleration signal, an analog velocity signal and an analog displacement signal. An interface circuit receives the foregoing analog signals and converts such signals to a number of logic level signals based on comparison with a number of predefined analog threshold signals. A decision logic circuit receives the converted logic level signals and processes such signals to discriminate between severe and non-severe impact events, and control airbag deployment in accordance therewith.
摘要翻译：用于控制气囊部署的模拟信号处理系统和决策逻辑包括低通滤波器电路，微分电路和集成电路，其可操作以接收模拟加速度信号并提供差分模拟带通加速度信号，降低带通模拟加速度信号，低通模拟加速度信号，模拟速度信号和模拟位移信号。接口电路接收上述模拟信号，并且基于与多个预定模拟阈值信号的比较将这些信号转换成多个逻辑电平信号。决定逻辑电路接收转换的逻辑电平信号并处理这些信号以区分严重和非严重的撞击事件，并根据其控制气囊部署。

5. 发明授权

US5394326A Air bag deployment control system and method 失效
标题翻译：气囊部署控制系统及方法
公开(公告)号：US5394326A
公开(公告)日：1995-02-28
申请号：US185342
申请日：1994-01-24
申请人： Jiyao Liu
发明人： Jiyao Liu
IPC分类号： B60R21/01 , B60R21/16 , B60R21/32
CPC分类号： B60R21/0132 , B60R2021/01322
摘要： An apparatus and method for deployment of an air bag installed in an automotive vehicle. The control includes a senor for sensing vehicle deceleration due to a collision and a processor operatively connected to the sensor. The sensor generates a deceleration signal which is analyzed by the processor. The processor calculates velocity and signal energy from the deceleration signal, and compares the velocity and signal energy to predefined velocity and energy thresholds, respectively. The processor also generates a deployment signal when both the velocity and energy signals exceed the respective thresholds. In the method for controlling the deployment of an air bag, vehicle deceleration due to a collision is sensed and a deceleration signal is generated therefrom. The velocity signal and energy signals are then calculated and compared to the respective predefined velocity and energy thresholds. If the velocity signal exceeds the velocity threshold and the signal energy exceeds the energy threshold, a deployment signal is generated.
摘要翻译：一种用于部署安装在机动车辆中的气囊的装置和方法。该控制器包括用于感测由于碰撞而导致的车辆减速的传感器和可操作地连接到传感器的处理器。传感器产生由处理器分析的减速信号。处理器从减速信号计算速度和信号能量，并将速度和信号能量分别与预定义的速度和能量阈值进行比较。当速度和能量信号都超过相应的阈值时，处理器还产生部署信号。在控制安全气囊展开的方法中，感测到由于碰撞而引起的车辆减速，并且由此产生减速信号。然后计算速度信号和能量信号，并将其与相应的预定速度和能量阈值进行比较。如果速度信号超过速度阈值，并且信号能量超过能量阈值，则会产生部署信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式