公开(公告)号：US20250038235A1

公开(公告)日：2025-01-30

申请号：US18915955

申请日：2024-10-15

Applicant: DENSO CORPORATION

Inventor： Naoya WAKAYAMA ,  Jun KAWAMURA

IPC: H01M8/04828 ,  H01M8/04746

Abstract: A fuel cell system includes a fuel cell, a first actuator capable of adjusting a first state quantity indicating an internal state of the fuel cell, a second actuator capable of adjusting a second state quantity indicating the internal state of the fuel cell, and a control unit. The control unit is configured to perform a first control and a second control, the first control includes acquiring a present value of the first state quantity and controlling operation of the first actuator so that the acquired present value of the first state quantity approaches a predetermined first target value, and the second control includes acquiring a present value of the second state quantity and controlling operation of the second actuator so that the acquired present value of the second state quantity approaches a predetermined second target value.

公开(公告)号：US20150159565A1

公开(公告)日：2015-06-11

申请号：US14564681

申请日：2014-12-09

Applicant: DENSO CORPORATION

Inventor： Masayuki SUZUKI ,  Hideo NARUSE ,  Jun KAWAMURA ,  Koji ISHIZUKA

IPC: F02D41/00 ,  F02D41/40

CPC classification number: F02D41/0002 ,  F02D35/023 ,  F02D35/028 ,  F02D41/005 ,  F02D41/0052 ,  F02D41/403 ,  F02D2041/001 ,  F02D2041/0022 ,  F02D2041/389 ,  F02D2200/0611 ,  Y02T10/42 ,  Y02T10/44 ,  Y02T10/47

Abstract: The density of fuel being used by a compression-ignition engine and the flammability of the fuel (readiness to ignite when injected into a combustion chamber of the engine, under the current operating conditions of the engine) are respectively detected. When the flammability is excessively low and the density is above a threshold value, the oxygen concentration of the intake air supplied to the cylinders is increased until the flammability reaches a reference condition, while when the flammability is excessively low and the density is below the threshold value, the compression ratio of the engine (and/or each pilot injection amount) is increased until the flammability reaches the reference condition.

Abstract translation: 分别检测压缩点火式发动机使用的燃料密度和燃料的燃烧性（当在发动机的当前运行条件下注入发动机的燃烧室时准备点燃）。 当可燃性过低且密度高于阈值时，供应到气缸的进气的氧浓度增加直到可燃性达到参考条件，而当可燃性过低且密度低于阈值时 值，发动机的压缩比（和/或每个先导喷射量）增加直到可燃性达到基准状态。

公开(公告)号：US20150252745A1

公开(公告)日：2015-09-10

申请号：US14626136

申请日：2015-02-19

Applicant: DENSO CORPORATION

Inventor： Hideo NARUSE ,  Makoto MASHIDA ,  Koji ISHIZUKA ,  Jun KAWAMURA ,  Masayuki SUZUKI

IPC: F02D41/04 ,  F02D41/30

CPC classification number: F02D41/04 ,  F02D35/028 ,  F02D41/0025 ,  F02D41/3005 ,  F02D2200/0612 ,  Y02T10/36

Abstract: A fuel property detection apparatus detects fuel properties based on cetane number and density of a tested fuel. Tested fuel is examined in terms of ignition timing, and, when the tested fuel has an ignition timing earlier than a threshold, the tested fuel is identified as having a standard cetane number. When the tested fuel has an ignition timing later than the threshold, the tested fuel is identified as having a low cetane number. An advance angle of the ignition timing is increased for yielding a greater ignition timing difference between a light property fuel and a heavy property fuel, and, in such manner, the difference therebetween is detected. When an advancement of the ignition timing is greater than a threshold, the fuel property is identified as heavy, and, when an advancement of the ignition timing is smaller than the threshold, the fuel property is identified as light.

Abstract translation: 燃料特性检测装置根据试验燃料的十六烷值和密度来检测燃料特性。 根据点火正时检查测试的燃料，并且当被测燃料的点火时间早于阈值时，所测试的燃料被识别为具有标准十六烷值。 当被测燃料的点火时间晚于阈值时，所测试的燃料被鉴定为具有低十六烷值。 提高点火正时的提前角，以便在轻型燃料和重型燃料之间产生更大的点火正时差，并且以这种方式检测它们之间的差异。 当点火时间的提前大于阈值时，燃料特性被认为是重的，并且当点火正时的提前小于阈值时，将燃料特性识别为轻。