Multi-function light sensor for vehicle
    1.
    发明授权
    Multi-function light sensor for vehicle 失效
    车载多功能光传感器

    公开(公告)号:US6118383A

    公开(公告)日:2000-09-12

    申请号:US856138

    申请日:1997-05-14

    Inventor: Dennis J. Hegyi

    Abstract: A system for detecting the presence of rain droplets on a windshield employs a source of radiant energy, such as an LED, and a photodetector installed on the instrument panel of a vehicle. The LED and the photodiode are arranged with respect to one another such that light from the LED cannot reflect directly off the windshield onto the photodiode. Only when the light from the LED is back scattered by an environmental condition, such as the raindrops on the exterior of the windshield, the condensation of moisture on the interior of the windshield, or the presence of smoke in the cabin, will the photodiode receive the light from the LED. Each of these environmental conditions has a predeterminable characteristic signature that permits the processing of data to detect same. An ambient light signal is subtracted from the combination of the rain and ambient light signals by pulsed operation of the LED and subtracting the ambient light signal, which is detected when the LED is dark, from the combined LED and ambient light signal which is present when the LED is illuminated. A further LED is provided to effect a fog detection system that detects condensation on the interior of the vehicle windshield. The further LED illuminates the photodiode in a manner whereby the light on the photodiode is reduced when condensation is present. Also, a monitoring arrangement that employs a separate light sensor provides compensation for variances resulting from component aging and thermal influences.

    Abstract translation: 用于检测挡风玻璃上雨滴的存在的系统使用诸如LED的辐射能源和安装在车辆仪表板上的光电检测器。 LED和光电二极管相对于彼此布置,使得来自LED的光不能直接从挡风玻璃反射到光电二极管上。 只有当来自LED的光被环境条件(例如挡风玻璃外部的雨滴)回散,挡风玻璃内部的水分冷凝或者舱内存在烟雾时,光电二极管将被接收 来自LED的光。 这些环境条件中的每一个具有允许数据处理检测相同的可预定的特征签名。 通过LED的脉冲操作从雨和环境光信号的组合中减去环境光信号,并从LED组合的LED和环境光信号中减去当LED较暗时检测到的环境光信号, LED亮起。 提供另外的LED以实现检测车辆挡风玻璃内部的冷凝的雾化检测系统。 另外的LED以这样的方式照亮光电二极管,由此当存在冷凝时光电二极管上的光减少。 而且,使用单独的光传感器的监视装置提供了由元件老化和热影响导致的方差的补偿。

    Moisture actuated device for automatic control of a windscreen wiper
motor
    3.
    发明授权
    Moisture actuated device for automatic control of a windscreen wiper motor 失效
    用于自动控制挡风玻璃刮水器电机的湿度启动装置

    公开(公告)号:US5729105A

    公开(公告)日:1998-03-17

    申请号:US624594

    申请日:1996-04-04

    Applicant: Bernhard Droge

    Inventor: Bernhard Droge

    CPC classification number: B60S1/0818 Y10S15/15 Y10S318/02

    Abstract: The invention relates to a device for the automatic control of a windscreen wiper motor. The device has a moisture sensor which emits a signal depending on the moisture on the windscreen or another point on a motor vehicle so that this signal to some extent produces an analog reflection of the moisture varying in time. The output signal of the sensor is evaluated in such a way that it is continuously compared with a threshold value which can be altered. Every time this threshold value is reached or exceeded by a pulse-like change in the sensor output signal, this event is counted. After a given number Z of such events the windscreen wiper motor is switched on.

    Abstract translation: PCT No.PCT / DE94 / 01134 Sec。 371日期:1996年4月4日 102(e)日期1996年4月4日PCT 1994年9月27日PCT公布。 公开号WO95 / 10434 日期:1995年04月20日本发明涉及一种用于自动控制风挡玻璃刮水器马达的装置。 该装置具有湿度传感器,其根据挡风玻璃上的水分或机动车辆上的另一点发出信号,使得该信号在一定程度上产生水分在时间上变化的模拟反射。 传感器的输出信号以与可以改变的阈值连续比较的方式进行评估。 每当通过传感器输出信号的脉冲状变化达到或超过该阈值时,就会对该事件进行计数。 在给定数量Z的这种事件之后,挡风玻璃刮水器马达被接通。

    Fastening and coupling of an optoelectronic sensor to a pane and
structure of the sensor
    4.
    发明授权
    Fastening and coupling of an optoelectronic sensor to a pane and structure of the sensor 失效
    将光电传感器紧固并耦合到窗格和传感器的结构

    公开(公告)号:US5710633A

    公开(公告)日:1998-01-20

    申请号:US687607

    申请日:1996-08-08

    Abstract: An optoelectronic sensor 1 for detecting foreign bodies, especially raindrops on a windshield, includes an outer housing part 2 and an inner housing part as well as a fastening device 4, which is glued to a pane 5. A fastening means, for instance comprising two slides 6, is provided, guided in the outer housing part 2, and can be made to engage the fastening device 4 for securing the sensor 1 to the pane 5. In the interior of the sensor 1, the inner housing part, which carries the optoelectronic elements of the sensor 1, is pressed toward the pane 5 with a spring force braced against the outer housing part 2, in order to accomplish the optical coupling with the pane.

    Abstract translation: PCT No.PCT / DE95 / 00401 Sec。 371日期:1996年8月8日 102(e)日期1996年8月8日PCT 1995年3月23日PCT公布。 WO95 / 25651 PCT出版物 日期1995年9月28日用于检测异物,特别是挡风玻璃上的雨滴的光电传感器1包括外壳部分2和内壳体部分以及胶合到窗格5的紧固装置4.紧固装置 ,例如包括两个滑动件6,在外壳体部分2中被引导,并且可以被制成接合紧固装置4,以将传感器1固定到窗格5.在传感器1的内部,内壳体 携带传感器1的光电元件的部分被弹簧力压向窗板5,以抵靠外壳体部分2,以实现与玻璃板的光耦合。

    Windshield wiper control based on rate of change of sensor signal
    5.
    发明授权
    Windshield wiper control based on rate of change of sensor signal 失效
    基于传感器信号变化率的WINDSHIELD刮水器控制

    公开(公告)号:US5140234A

    公开(公告)日:1992-08-18

    申请号:US621366

    申请日:1990-11-30

    Inventor: Werner Wallrafen

    CPC classification number: B60S1/0818 B60S1/0825 Y10S15/15 Y10S318/02

    Abstract: A method for controlling a windshield wiper, particularly on a motor vehicle, in which a rain sensor is located on the windshield to be wiped in the region of the windshield wiper and gives off a sensor signal as a function of the amount of wetness. The rate of change of the sensor signal after the windshield wiper has passed the sensor is determined and used in order to control the frequency of wiping.

    Abstract translation: 一种用于控制特别是机动车辆上的挡风玻璃刮水器的方法,其中雨水传感器位于挡风玻璃上,以在挡风玻璃刮水器的区域中被擦拭,并且作为湿度的函数发出传感器信号。 确定并使用挡风玻璃刮水器通过传感器后的传感器信号的变化率,以便控制擦拭的频率。

    Windshield wiper control
    6.
    发明授权
    Windshield wiper control 失效
    挡风玻璃刮水器控制

    公开(公告)号:US4585980A

    公开(公告)日:1986-04-29

    申请号:US565058

    申请日:1983-12-23

    CPC classification number: B60S1/0814 Y10S15/15 Y10S318/02

    Abstract: A windshield wiper assembly comprising two windshield wipers each driven by a separate motor is described in which a control provides switching signals for switching on and off the wiper motors so as to achieve relatively smooth running of the wipers. In particular wiping areas one motor is continuously switched on and only the other motor, in dependence on the difference of the angular positions of the two wipers, is controlled such that collision of the wipers is prevented when the wiping areas overlap.

    Abstract translation: 描述了一种包括两个由单独的电动机驱动的挡风玻璃刮水器的挡风玻璃刮水器组件,其中控制器提供用于打开和关闭刮水器马达的切换信号,以便实现擦拭器的相对平稳的运行。 特别是擦拭区域中,一个电动机被连续接通,并且只有另一个电动机根据两个擦拭器的角位置的差异被控制,使得当擦拭区域重叠时防止擦拭器的碰撞。

    Intermittant windshield wiper control system with improved motor speed
control
    7.
    发明授权
    Intermittant windshield wiper control system with improved motor speed control 失效
    间歇式挡风玻璃刮水器控制系统,具有改进的电机速度控制

    公开(公告)号:US4544870A

    公开(公告)日:1985-10-01

    申请号:US604640

    申请日:1982-09-07

    CPC classification number: B60S1/482 Y10S15/15 Y10S318/02

    Abstract: In an intermittent windshield wiper system in which the time between wiping cycles depends upon the degree of dryness of the windshield and upon the speed of the wiper blades on the downstroke of the wiping cycle toward the dwell position of the wiper blades, a circuit is provided to regulate the speed of the motor on the down stroke making use of the same transistor device that is used in controlling the energization of the motor to achieve intermittent operation. The motor is a three-brush motor and speed regulation is achieved by deriving signals from one or two of the brushes and applying it to the input electrode of the transistor device. The regulated speed of the motor can be manually controlled to provide a manual adjustment to the sensitivity of the system to the degree of dryness of the windshield. The motor may be electrodynamically braked at the end of each wiping cycle and the electrodynamic braking circuit is also used to apply reverse current to the motor when the windshield wiper system is turned off to drive the windshield wiper blades to a depressed park position.

    Abstract translation: 在间歇式挡风玻璃刮水器系统中,其中擦拭周期之间的时间取决于挡风玻璃的干燥程度以及在擦拭周期朝向擦拭器刮片的停留位置的下行程度上的刮水片的速度,提供电路 利用用于控制电机通电的同一晶体管器件实现间歇操作,来调节电机在下行时的速度。 电动机是三刷马达,通过从一个或两个电刷中得到信号并将其施加到晶体管器件的输入电极来实现速度调节。 可以手动控制电动机的调节速度,以便对系统的灵敏度进行手动调整至挡风玻璃的干燥程度。 电动机可以在每个擦拭周期结束时进行电动力制动,并且当挡风玻璃刮水器系统关闭以将挡风玻璃刮水器驱动到凹陷的停放位置时,电动制动电路还用于向电动机施加反向电流。

    Windshield wiper control having a sensor and a repeatedly renewed offset
signal
    8.
    发明授权
    Windshield wiper control having a sensor and a repeatedly renewed offset signal 失效
    挡风玻璃刮水器控制具有传感器和重复更新的偏移信号

    公开(公告)号:US4495452A

    公开(公告)日:1985-01-22

    申请号:US525035

    申请日:1983-08-08

    CPC classification number: B60S1/0818 B60S1/0825 Y10S15/15 Y10S318/02

    Abstract: A windshield wiper control, e.g. for use in automobiles, receives information as to the amount of humidity on the windshield from a sensor (1) which is arranged within the area which is swept by the windshield wipers, and adjust the wiper frequency in relation thereto. The windshield wiper control includes a circuit (2) which remembers the signal from the sensor just after the windshield wiper has passed the sensor. The signal is compared to the signal directly from the sensor by a comparator (3). Having detected a certain change, the amplifier (4) is activated which turns on the wiper motor through a relay (5). The sensor may be of the capacitive type.

    Abstract translation: PCT No.PCT / DK82 / 00108 Sec。 371日期:1983年8月8日 102(e)日期1983年8月8日PCT提交1982年12月7日PCT公布。 公开号WO83 / 02093 日期:1983年6月23日。 从汽车中使用的传感器(1)接收关于挡风玻璃上的湿度的信息的信息,所述传感器(1)布置在由挡风玻璃刮水器扫过的区域内,并且相应地调节刮水器频率。 挡风玻璃刮水器控制器包括在挡风玻璃刮水器已经通过传感器之后记住来自传感器的信号的电路(2)。 通过比较器(3)将该信号与来自传感器的信号进行比较。 检测到一定的变化后,放大器(4)被激活,通过继电器(5)接通雨刮器电机。 传感器可以是电容式的。

    Electrically heated vehicle window having plural moisture sensing probes
    9.
    发明授权
    Electrically heated vehicle window having plural moisture sensing probes 失效
    具有多个湿度传感探针的电加热车窗

    公开(公告)号:US4132881A

    公开(公告)日:1979-01-02

    申请号:US806937

    申请日:1977-06-15

    CPC classification number: H05B3/84 G05D22/02 H05B1/0236 H05B2203/035 Y10S15/15

    Abstract: The glass pane of a vehicle window is provided on the surface of its central viewing area with a plurality of spaced, parallel linear heating resistors. First and second buses, disposed laterally of the central viewing area, extend transversely of the resistors and supply electric power thereto. A pair of moisture sensing, electrically conductive probes are provided on the pane at widely spaced zones away from the central viewing area. Each probe includes a first portion coextensive in length with a resistor and running parallel thereto. At least one of the probes has a second portion running parallel to one of the buses.

    Abstract translation: 车窗玻璃在其中央观察区域的表面上设置有多个间隔开的平行线性加热电阻器。 位于中央观察区域侧面的第一和第二巴士横向延伸到电阻器并向其供电。 一对水分感测导电探针设置在玻璃板上,远离中央观察区域的间隔远的区域。 每个探针包括与电阻器长度并行延伸并与其平行延伸的第一部分。 至少一个探头具有平行于其中一个总线的第二部分。

    Windshield wiper control means
    10.
    发明授权
    Windshield wiper control means 失效
    WINDSHIELD刮水器控制装置

    公开(公告)号:US3794847A

    公开(公告)日:1974-02-26

    申请号:US3794847D

    申请日:1972-06-02

    Applicant: CITROEN SA

    Inventor: CADIOU J

    CPC classification number: B60S1/485 Y10S15/15 Y10S200/14 Y10T307/773

    Abstract: Windshield wiper control comprises a moisture detector in the form of two electrodes separated by a labyrinthine gap and positioned to be wiped by a windshield wiper blade. The motor controlling the wiper is started and stopped by a relay actuated by a control circuit containing the gap between the electrodes so as to start the wiper when the gap is bridged by moisture and stop it when the moisture evaporates. Means are provided for changing the threshold of response after the wiper has been started so that the wiper will stop when there is more moisture on the detector than is required to start it.

    Abstract translation: 挡风玻璃刮水器控制器包括两个电极形式的水分检测器,两个电极由迷宫间隙分开,并被定位成被挡风玻璃刮水器擦拭。 控制刮水器的马达通过由包含电极之间的间隙的控制电路驱动的继电器启动和停止,以便当间隙由湿气桥接时启动刮水器,并在水分蒸发时停止。 提供了用于在擦拭器已经启动之后改变响应阈值的装置,使得当检测器上的水分多于启动时所需的湿度,擦拭器将停止。

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