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    • 2. 发明授权
    • Ignition system for internal combustion engines with tapped ignition coil
    • 带点火线圈的内燃机点火系统
    • US4117818A
    • 1978-10-03
    • US704116
    • 1976-07-09
    • Bernd BodigHelmut SchmiedGerd Hohne
    • Bernd BodigHelmut SchmiedGerd Hohne
    • F02P3/04F02P3/045F02P3/05F02P3/08F02P5/155F02P3/02
    • F02P3/051F02P3/0838
    • The primary of the ignition coil is tapped to provide two partial primary portions which are serially connected; during an initial current flow, only one partial portion has current flowing therethrough, the other partial portion being short-circuited. When the current through the coil has risen to a predetermined level, as sensed by current flow through a sensing resistor, the short circuit across the second partial portion is removed so that current can continue to flow through the entire primary, causing a substantial drop in current level but maintaining the stored inductive energy. Current can thus rise rapidly initially, so that the coil will store sufficient energy to initiate sparking at high speeds of the connected internal combustion engine while, at low speeds thereof, the overall current flow through the coil is decreased.
    • 点火线圈的主要部分被点燃以提供串联连接的两个部分主要部分; 在初始电流期间,只有一个部分部分具有流过其中的电流,另一部分部分被短路。 当通过线圈的电流已经升高到预定水平时,如通过感测电阻器的电流流动感测到的,跨过第二部分部分的短路被去除,使得电流可以继续流过整个初级,导致实质上的下降 电流水平,但保持存储的感应能量。 因此,电流首先可以迅速上升,使得线圈将储存足够的能量以在连接的内燃机的高速下起动火花,而在低速时,通过线圈的总电流减小。
    • 3. 发明授权
    • Monitoring circuit for resetting malfunctioning electronic components,
such as microprocessors
    • 用于复位故障电子元件(如微处理器)的监控电路
    • US4512019A
    • 1985-04-16
    • US429221
    • 1982-09-30
    • Bernd BodigGerd HohneHelmut Schmied
    • Bernd BodigGerd HohneHelmut Schmied
    • G06F11/30G06F1/24G06F11/00F02D35/00
    • G06F11/0757
    • A capacitor which is charged by recurring square waves of a normally functioning microprocessor discharges at a steady rate, so that if the square waves do not continue, an operational amplifier will switch over and produce a reset pulse for the microprocessor. Repeated transitions of one polarity of the square wave recharge the capacitor during a short interval terminated by a second operational amplifier when the capacitor reaches a fixed level of charge. This second amplifier, which has feedback coupling, also initiates the timing discharge of the capacitor. A diode network at its output prevents charging the capacitor in the static state. This arrangement makes it unnecessary to provide another capacitor for quickly recharging the capacitor to prevent its discharge from switching over the first-mentioned operational amplifier.
    • 由正常功能的微处理器的重复方波充电的电容器以稳定的速率放电,因此如果方波不能继续,则运算放大器将切换并产生微处理器的复位脉冲。 当电容器达到固定电荷水平时,方波的一个极性的重复转换在短时间间隔期间由电容器重新充电,由第二运算放大器终止。 具有反馈耦合的第二放大器也启动电容器的定时放电。 其输出端的二极管网络可防止在静态状态下对电容充电。 这种布置使得不需要提供用于快速再充电电容器的另一个电容器,以防止其放电切换首先提到的运算放大器。
    • 4. 发明授权
    • Ignition system with improved temperature and voltage compensation
    • 点火系统具有改善的温度和电压补偿
    • US4253442A
    • 1981-03-03
    • US60878
    • 1979-07-26
    • Werner JundtBernd BodigGerd HohneGeorg PfaffGerhard SohnerBernd Kalkhof
    • Werner JundtBernd BodigGerd HohneGeorg PfaffGerhard SohnerBernd Kalkhof
    • F02P3/04F02P3/045F02P3/05F02P1/00
    • F02P3/051
    • The voltage across a capacitor is changed in a first direction while the current in the primary winding of the ignition coil increases to a predetermined value less than the value required for ignition and is thereafter changed in a second direction until ignition takes place. The voltage across the capacitor is applied to the inverting input of a difference amplifier constituting a threshold stage controlling the initiation and termination of current flow through the ignition coil. The two changes are symmetrical when the engine speed remains constant. The residual voltage across the capacitor at the end of the second change is maintained until the start of the next subsequent first change, so that the time at which the threshold stage switches in, that is the time at which primary current starts to flow in the ignition coil changes as a function of the residual voltage in the capacitor.
    • 电容器两端的电压在第一方向上变化,同时点火线圈的初级绕组中的电流增加到小于点火所需值的预定值,然后在第二方向上改变直到发生点火。 电容器两端的电压被施加到构成阈值级的差分放大器的反相输入,该阈值级控制通过点火线圈的电流的启动和终止。 当发动机转速保持恒定时,两个变化是对称的。 在第二次变化结束时,电容器两端的剩余电压被维持直到下一个随后的第一次改变开始,使得阈值级切换的时间,即初级电流开始流过的时间 点火线圈根据电容器中的残余电压而变化。
    • 8. 再颁专利
    • Ignition system dependent upon engine speed
    • 点火系统取决于发动机转速
    • USRE29862E
    • 1978-12-19
    • US793953
    • 1977-05-05
    • Herman RoozenbeekBernd BodigKlaus MeyerAdolf Fritz
    • Herman RoozenbeekBernd BodigKlaus MeyerAdolf Fritz
    • F02P3/045
    • F02P3/0453
    • An internal combustion engine is comprised of at least one engine cylinder, devices for introducing a combustion mixture into the cylinder, and an electrical igniting element operative for igniting the combustion mixture in the cylinder once per ignition cycle. An ignition transformer has a secondary winding connected across the igniting element, and also has a primary winding. A flow of current is established through the primary winding. An electronic switch is connected in the current path of the primary winding to control the flow of current through the primary winding. A triggering unit generates a train of crankshaft-synchronized triggering signals. A monostable control circuit has a trigger input for receipt of such triggering signals, and is operative when triggered into the unstable state for rendering and maintaining the electronic switch nonconductive for the duration of the unstable state, so as to interrupt the flow of current through the primary winding and induce across the secondary winding a voltage surge causing the igniting element to ignite the combustion mixture in the engine cylinder. When the monostable control circuit reverts to its stable state, it renders and maintains the electronic switch conductive for the duration of the stable state, whereby to establish a build-up of current flow in the primary winding in preparation for the next interruption of current flow. The monostable control circuit includes a timing stage operative for automatically .[.increasing.]. .Iadd.decreasing .Iaddend.the ratio of the duration of the unstable state to the duration of the ignition cycle with increasing engine speed within a predetermined range of engine speeds.
    • 9. 发明授权
    • Ignition system with overvoltage and excess current protection
    • 点火系统具有过压和过流保护
    • US4244344A
    • 1981-01-13
    • US040070
    • 1979-05-17
    • Peter WernerWerner JundtHerman RoozenbeekBernd Bodig
    • Peter WernerWerner JundtHerman RoozenbeekBernd Bodig
    • F02P3/04F02P3/045F02P3/05F02P3/055H03K17/082F02P1/00H05B41/36
    • H03K17/0826F02P3/0552
    • In a known ignition system, the emitter-collector circuit of the ignition transistor is connected in series with the primary winding of the ignition coil and with a precision resistor. When the voltage across the latter exceeds a predetermined value, an auxiliary transistor is switched to a conductive state. The emitter-collector circuit of the auxiliary transistor is connected to the base of the ignition transistor and, when conductive, prevents further increases of current through the primary winding of the ignition coil. To protect this circuit, a series circuit including two Zener diodes is connected between the base and collector of the ignition transistor. Further, a voltage divider is connected in parallel with the emitter-collector circuit of the ignition transistor and an additional resistor is connected between the base and the emitter thereof. When overvoltages across the primary winding cause breakdown of the Zener diodes, the current through the Zener diodes is blocked from the emitter-collector circuit of the auxiliary transistor either by a diode or by a blocking transistor having an emitter-collector circuit connected in parallel with the base-emitter circuit of the auxiliary transistor. The blocking transistor is maintained in the conductive state blocking the auxiliary transistor throughout the application time of an externally applied blocking signal which is adapted to maintain the ignition transistor in the blocked state.
    • 在已知的点火系统中,点火晶体管的发射极 - 集电极电路与点火线圈的初级绕组和精密电阻串联。 当后者的电压超过预定值时,辅助晶体管被切换到导通状态。 辅助晶体管的发射极 - 集电极电路连接到点火晶体管的基极,并且当导电时,防止通过点火线圈的初级绕组的电流的进一步增加。 为了保护该电路,包括两个齐纳二极管的串联电路连接在点火晶体管的基极和集电极之间。 此外,分压器与点火晶体管的发射极 - 集电极电路并联连接,附加电阻连接在基极和发射极之间。 当初级绕组上的过电压引起齐纳二极管的击穿时,通过齐纳二极管的电流被辅助晶体管的发射极 - 集电极电路阻断,或者由二极管或具有与 辅助晶体管的基极 - 发射极电路。 在外部施加的阻塞信号的施加时间内,阻塞晶体管保持导通状态,阻止辅助晶体管,其适于将点火晶体管保持在阻塞状态。
    • 10. 发明授权
    • Ignition system
    • 点火系统
    • US4174696A
    • 1979-11-20
    • US869627
    • 1978-01-16
    • Werner JundtBernd BodigHeinz DeckerGunther SchmidtBert WurstKarl SeegerHerman Roozenbeek
    • Werner JundtBernd BodigHeinz DeckerGunther SchmidtBert WurstKarl SeegerHerman Roozenbeek
    • F02P3/04F02P3/045F02P3/05F02P15/10F02P5/04
    • F02P15/10F02P3/053
    • A switch connected in series with the ignition coil is "on" and "off," respectively, in the presence and absence of a pulse furnished by a pulse generator operating in synchronism with the crankshaft of the engine. If the pulse width of the pulses is too small for the current in the ignition coil to reach the minimum value required for ignition, the closing time of the series switch is advanced, while if the pulse width is too long, causing excess heat dissipation in the coil, the closing time of the switch is retarded. To accomplish this, a first digital counter counts downwards for a predetermined time and upwards for a time period in which the current in the ignition coil exceeds a predetermined current. Upon interruption of the current in the coil, the then-present value in the first digital counter is transferred to a second digital counter. The second counter then counts down at a predetermined rate until a predetermined count is reached. At this time, the series switch is switched to the conductive state.
    • 在与发动机的曲轴同步运行的脉冲发生器的存在和不存在的情况下,与点火线圈串联的开关分别为“开”和“关”。 如果脉冲的脉冲宽度对于点火线圈中的电流来说太小,达到点火所需的最小值,则串联开关的闭合时间将提前,而如果脉冲宽度太长,则会导致多余的散热 线圈,开关的闭合时间被延迟。 为了实现这一点,第一数字计数器在点火线圈中的电流超过预定电流的时间段向下计数预定时间和向上计数。 在线圈中的电流中断时,第一数字计数器中的当前值被传送到第二数字计数器。 然后第二个计数器以预定的速率递减计数,直到达到预定计数。 此时,串联开关切换到导通状态。