公开(公告)号：EP2711632A1

公开(公告)日：2014-03-26

申请号：EP12790049.6

申请日：2012-05-14

申请人： Bosch Corporation

发明人： NAKAMURA, Tomohiro ,  TANAKA, Yutaka ,  FUJISHIRO, Yoshihito ,  TOYOSHIMA, Yasuo

IPC分类号： F23Q7/00 ,  F02P19/00

CPC分类号： F02P19/02 ,  F02D41/266 ,  F02D2041/2058 ,  F02P19/027 ,  F23Q7/001

摘要： There is provided a new glow plug that can be easily determined as to whether or not it is a new article.
An additional circuit 12 formed by connecting a diode 13, a fuse 14, and an adjusting resistor 15 in series in this order is connected in parallel to a heating element 11 of a glow plug 1. The diode 13 is provided so as to have an anode located on the positive electrode side of the heating element 11 and a cathode located on the fuse 14 side. In the case of a unit inspection, by applying a positive voltage for test to a heating element negative electrode connecting portion 3a, it is possible to determine whether or not the glow plug 1 is normal without blowing the fuse 14 before the glow plug 1 is used in a vehicle.

公开(公告)号：EP2711540A1

公开(公告)日：2014-03-26

申请号：EP12785757.1

申请日：2012-05-14

申请人： Bosch Corporation

发明人： NAKAMURA, Tomohiro ,  TANAKA, Yutaka ,  FUJISHIRO, Yoshihito

IPC分类号： F02P19/02

CPC分类号： F02P19/025 ,  F02D41/2435 ,  F02P19/02 ,  F02P19/023

摘要： The accuracy in controlling the heating temperature of a glow plug and the reliability of the control operation are improved.
An electronic control unit 101 is configured such that a standard applied voltage for glow plugs 50-1 to 50-n is set according to the engine speed and the load conditions of the engine. In addition, a correction coefficient set in advance according to the temperature classification of the mounted glow plugs 50-1 to 50-n is readably stored in the electronic control unit 101 as a correction coefficient map. By multiplying the standard applied voltage by a correction coefficient K read from the correction coefficient map and applying a voltage of the multiplication result to the glow plugs 50-1 to 50-n as a driving voltage through the power circuit 102 to perform driving control, stable and reliable heating temperature control can be realized regardless of variations in the heating temperature characteristics.

摘要翻译： 控制电热塞的加热温度的精度和控制操作的可靠性得到改善。 电子控制单元101被配置为使得根据发动机速度和发动机的负载条件来设定用于电热塞50-1至50-n的标准施加电压。 此外，根据安装的电热塞50-1至50-n的温度分类预先设置的校正系数可读取地存储在电子控制单元101中作为校正系数图。 通过将标准施加电压乘以从校正系数图读出的校正系数K，并将相乘结果的电压通过电源电路102作为驱动电压施加到电热塞50-1至50-n以进行驱动控制， 无论加热温度特性的变化如何，均可实现稳定可靠的加热温度控制。

公开(公告)号：EP2133554A1

公开(公告)日：2009-12-16

申请号：EP08721175.1

申请日：2008-03-03

申请人： Bosch Corporation

发明人： SUGIMOTO, Hitoshi ,  TAKASHIMA, Yoshiaki ,  TANAKA, Yutaka

IPC分类号： F02P19/02 ,  F23Q7/22 ,  H02H11/00

CPC分类号： F02P19/027 ,  F02P11/00 ,  H02J7/0034 ,  H03K17/0822

摘要： In the case where a battery is reversely connected, unnecessary current-carrying to a glow plug is avoided.
Power MOS type field effect transistors 1-1 to 1-n are provided according to a number of glow plugs 5-1 to 5-n to be connected in series between a vehicle battery and the glow plugs 5-1 to 5-n and can be controlled in conduction or non-conduction by a glow-plug control part 51, while a MOS type field effect transistor 2 for protection against reverse connection is provided in series connection between a battery-power joining terminal 3, to which a positive voltage of a vehicle battery is applied, and the ground to cause a reverse current to flow to a fuse 4 through the MOS type field effect transistor 2 at the time of reverse connection of a battery to melt the fuse 4 early whereby current-carrying to the glow plugs 5-1 to 5-n can be avoided.

摘要翻译： 在电池反向连接的情况下，避免了对电热塞的不必要的电流携带。 功率MOS型场效应晶体管1-1至1-n根据要在车辆电池和电热塞5-1至5-n之间串联连接的多个电热塞5-1至5-n和 可以通过电热塞控制部分51控制导通或不导通，而用于防止反向连接的MOS型场效应晶体管2被串联连接在电池 - 功率连接端子3之间， 在电池的反向连接时，通过MOS型场效应晶体管2使接地电流流向熔断器4，使熔断器4尽早熔断，通电至 可以避免电热塞5-1至5-n。