公开(公告)号：US20150275812A1

公开(公告)日：2015-10-01

申请号：US14434838

申请日：2013-10-09

Applicant: DENSO CORPORATION

Inventor： Hideyuki Mori ,  Nobuyuki Satake

IPC: F02D41/30 ,  F02D33/00 ,  F02M37/00 ,  F02D41/20

CPC classification number: F02D41/3082 ,  F02D33/003 ,  F02D41/20 ,  F02D41/2464 ,  F02D2041/2051 ,  F02D2250/31 ,  F02M37/0052 ,  F02M37/08 ,  F02M37/106 ,  F02M69/00

Abstract: A fuel supply device (1) has a valve (13) in a fuel passage between a fuel pump (3) and an engine (5). In a storage portion of an ECU (18-21) is stored a relationship between a fuel pressure and a flow rate, which are required by the engine, and voltage which is supplied to a motor (7). The ECU senses voltages V26, V27, V28 supplied to the motor from a controller (22) when the valve is opened from change points C1′, C2′, C3′ at which a characteristic between the voltage and the current which are supplied to the motor (7) is changed. Then, the ECU corrects the voltage stored in the storage portion on the basis of differences between voltages V1, V2, V5 stored in the storage portion at the change points C1, C2, C3 and the voltages V26, V27, V28 when the valve is opened. In this way, the fuel supply device can correctly control the motor in correspondence to the fuel pressure and the flow rate which are required by the engine.

Abstract translation: 燃料供给装置（1）在燃料泵（3）和发动机（5）之间的燃料通路中具有阀（13）。 在ECU（18-21）的存储部分中存储发动机所需的燃料压力和流量之间的关系以及供给到电动机（7）的电压。 当阀从变化点C1'，C2'，C3'打开时，ECU从控制器（22）感测提供给电动机的电压V26，V27，V28，在这些变化点C1'，C2'，C3'处，电压和电流之间的特性被提供给 电机（7）更换。 然后，ECU基于存储在变化点C1，C2，C3的存储部分中的电压V1，V2，V5与电压V26，V27，V28之间的差异来校正存储在存储部分中的电压，当阀门是 开了 以这种方式，燃料供应装置可以根据发动机所需的燃料压力和流量正确地控制电动机。