公开(公告)号：US20150144097A1

公开(公告)日：2015-05-28

申请号：US14405960

申请日：2013-06-06

Applicant: DAF Trucks N.V.

Inventor： Andreas Lingens ,  Roel Peters

IPC: F02B37/22 ,  F02D41/26 ,  F02B37/24 ,  F02D41/00 ,  F01L13/06 ,  F02D9/06

CPC classification number: F02B37/22 ,  F01L13/065 ,  F02B37/24 ,  F02D9/06 ,  F02D41/0007 ,  F02D41/1448 ,  F02D41/263 ,  F02D2200/0406 ,  F02D2200/101 ,  F02D2200/703 ,  F02D2250/34 ,  Y02T10/144

Abstract: A method and a system are described for a compression release brake in an engine comprising an exhaust manifold connected to a turbine provided with a variable turbine geometry wherein said turbine is further connected to a back pressure valve for controlling the pressure drop over said turbine wherein the method comprises the steps of: controlling said, back pressure valve on the basis of a measured engine speed and a desired braking power; calculating a desired exhaust manifold, gas pressure on the basis of said measured engine speed and said, desired braking power; and, controlling said variable turbine geometry such that the difference between a measured exhaust manifold gas pressure and said calculated desired exhaust manifold gas pressure is minimised.

Abstract translation: 描述了用于发动机中的压缩释放制动器的方法和系统，其包括连接到具有可变涡轮机几何形状的涡轮机的排气歧管，其中所述涡轮机还进一步连接到用于控制所述涡轮机上的压降的背压阀， 方法包括以下步骤：基于所测量的发动机转速和期望的制动功率来控制所述背压阀; 基于所述测量的发动机速度和所述所需的制动功率来计算期望的排气歧管，气体压力; 并且控制所述可变涡轮机几何形状使得测得的排气歧管气体压力与所计算的所需排气歧管气体压力之间的差最小化。

公开(公告)号：US09546592B2

公开(公告)日：2017-01-17

申请号：US14405960

申请日：2013-06-06

Applicant: DAF Trucks N.V.

Inventor： Andreas Lingens ,  Roel Peters

IPC: F02B37/22 ,  F02D41/00 ,  F02B37/24 ,  F02D9/06 ,  F01L13/06 ,  F02D41/26 ,  F02D41/14

CPC classification number: F02B37/22 ,  F01L13/065 ,  F02B37/24 ,  F02D9/06 ,  F02D41/0007 ,  F02D41/1448 ,  F02D41/263 ,  F02D2200/0406 ,  F02D2200/101 ,  F02D2200/703 ,  F02D2250/34 ,  Y02T10/144

Abstract: A method and a system are described for a compression release brake in an engine comprising an exhaust manifold connected to a turbine provided with a variable turbine geometry wherein said turbine is further connected to a back pressure valve for controlling the pressure drop over said turbine wherein the method comprises the steps of: controlling said back pressure valve on the basis of a measured engine speed and a desired braking power; calculating a desired exhaust manifold gas pressure on the basis of said measured engine speed and said desired braking power; and, controlling said variable turbine geometry such that the difference between a measured exhaust manifold gas pressure and said calculated desired exhaust manifold gas pressure is minimized.

Abstract translation: 描述了用于发动机中的压缩释放制动器的方法和系统，其包括连接到具有可变涡轮机几何形状的涡轮机的排气歧管，其中所述涡轮机还进一步连接到用于控制所述涡轮机上的压降的背压阀， 方法包括以下步骤：基于所测量的发动机转速和期望的制动功率来控制所述背压阀; 基于所述测量的发动机速度和所述期望制动功率来计算期望的排气歧管气体压力; 并且控制所述可变涡轮机几何形状使得测得的排气歧管气体压力与所计算的所需排气歧管气体压力之间的差最小化。