专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US5216997A Fuel supply control device of an engine 失效
标题翻译：发动机燃油供给控制装置
公开(公告)号：US5216997A
公开(公告)日：1993-06-08
申请号：US932846
申请日：1992-08-20
申请人： Akinori Osanai , Takaaki Itoh , Yoshihiko Hyodo , Toru Kodokoro
发明人： Akinori Osanai , Takaaki Itoh , Yoshihiko Hyodo , Toru Kodokoro
IPC分类号： F02D41/14 , F02D41/00 , F02D41/02 , F02M25/08
CPC分类号： F02M25/08 , F02D41/004 , F02D41/0045 , F02D41/0042
摘要： A fuel supply control device including a purge control valve. The maximum purge rate, that is, the ratio between the amount of purge and the amount of intake air when the purge control valve is fully open, is stored in advance. The purge control valve is controlled in its duty ratio, which duty ratio is the target purge rate/maximum purge rate. When the purge is started, the target duty ratio is gradually increased. When the purge is performed and the feedback correction coefficient FAF falls, the feedback correction coefficient FAF is gradually returned to the FAF before the start of a purge, the purge A/F correction coefficient is increased, and the amount of injection is corrected by the sum of the purge A/F correction coefficient and the feedback correction coefficient.
摘要翻译：一种燃料供给控制装置，包括净化控制阀。预先存储最大吹扫速率，即清洗控制阀完全打开时吹扫量与进气量之间的比率。净化控制阀的占空比被控制，占空比是目标吹扫速率/最大吹扫速率。当清洗开始时，目标占空比逐渐增加。当执行吹扫并且反馈校正系数FAF下降时，反馈校正系数FAF在清洗开始之前逐渐返回到FAF，清洗A / F校正系数增加，并且喷射量由净化A / F校正系数和反馈校正系数之和。

52. 发明授权

US4942860A Engine control system 失效
标题翻译：发动机控制系统
公开(公告)号：US4942860A
公开(公告)日：1990-07-24
申请号：US151422
申请日：1988-02-02
申请人： Yoshiki Chujo , Tokuta Inoue , Toshiaki Konomi , Yoshihiko Hyodo
发明人： Yoshiki Chujo , Tokuta Inoue , Toshiaki Konomi , Yoshihiko Hyodo
IPC分类号： F02D35/00 , F02D41/00 , F02D41/14
CPC分类号： F02D35/0038 , F02D41/0007 , F02D41/144 , F02D41/1455 , F02D41/1456 , Y02T10/144
摘要： An engine control system having an oxygen density sensor arranged in an intake system at a position downstream of a throttle valve for detecting the amount of air newly introduced into the engine. The sensor is a limit electric current detection type capable of detecting a continuously changing density of the oxygen. An amount of fuel to be injected is calculated in accordance with the output level of the sensor by using mapped data of the output level of the sensor signal. A precise detection of new air is made possible while maintaining the advantages of the known D-J system. An ignition timing also may be calculated by the signal from the oxygen sensor.
摘要翻译：一种具有氧气密度传感器的发动机控制系统，其布置在进气系统中的节气门下游的位置处，用于检测新引入发动机的空气量。该传感器是能够检测氧的浓度连续变化的极限电流检测型。通过使用传感器信号的输出电平的映射数据，根据传感器的输出电平来计算要喷射的燃料量。可以精确地检测新的空气，同时保持已知的D-J系统的优点。也可以通过来自氧传感器的信号来计算点火正时。

53. 发明授权

US4924837A Internal combustion engine having electric controlled fuel injection with oxygen sensor for detecting intake air amount 失效
标题翻译：具有电控燃料喷射的内燃机，具有用于检测进气量的氧传感器
公开(公告)号：US4924837A
公开(公告)日：1990-05-15
申请号：US360243
申请日：1989-06-01
申请人： Yoshiki Chujo , Keiji Aoki , Yoshihiko Hyodo , Toshiyasu Katsuno
发明人： Yoshiki Chujo , Keiji Aoki , Yoshihiko Hyodo , Toshiyasu Katsuno
IPC分类号： F02D41/00 , F02D41/04 , F02D41/14 , F02D41/18 , F02D41/24 , F02D41/34
CPC分类号： F02D41/182 , F02D41/144 , F02D41/1496 , F02D41/2422
摘要： A fuel injection system for an internal combustion engine wherein an oxygen sensor for detecting a limit electric current is employed for providing a signal indicating an oxygen partial pressure in the gas introduced into the engine. The sensor detects an amount of air newly introduced into the engine. In addition to a map for calculating a basic fuel injection amount from the oxygen partial pressure, a second map is provided for calculating the basic fuel amount from a parameter such as a degree of opening of the throttle valve. A degree of activation of the oxygen sensor is determined by detecting the impedance of the sensor. When it is determined that the oxygen sensor is not activated, the second map is employed in place of the first map to calculate the basic fuel amount based on the degree of opening of the throttle valve.
摘要翻译：一种用于内燃机的燃料喷射系统，其中采用用于检测极限电流的氧传感器，以提供指示引入发动机的气体中的氧气分压的信号。传感器检测新引入发动机的空气量。除了用于从氧分压计算基本燃料喷射量的地图之外，还提供第二图，用于根据诸如节流阀的开度的参数来计算基本燃料量。通过检测传感器的阻抗来确定氧传感器的激活程度。当确定氧传感器未被激活时，采用第二图来代替第一映射，以基于节气门的打开程度来计算基本燃料量。

54. 发明授权

US4836174A Engine control system 失效
标题翻译：发动机控制系统
公开(公告)号：US4836174A
公开(公告)日：1989-06-06
申请号：US151576
申请日：1988-02-02
申请人： Yoshiki Chujo , Tokuta Inoue , Toshiaki Konomi , Yoshihiko Hyodo
发明人： Yoshiki Chujo , Tokuta Inoue , Toshiaki Konomi , Yoshihiko Hyodo
IPC分类号： F02D41/14 , F02D41/24
CPC分类号： F02D41/2496 , F02D41/144 , F02D41/1476 , F02D41/1456
摘要： An engine control system having an oxygen density sensor arranged in an intake system at a position downstream of a throttle valve for detecting the amount of air newly introduced into the engine. The sensor is a limit electric current detection type capable of detecting a continuously changing density of oxygen. An amount of fuel to be injected is calculated in accordance with the output level of the sensor by using mapped data of the output level of the sensor signal. The sensitivity of the sensor is detected and multiplied by the output value of the sensor for obtaining a precise oxygen partial pressure. Instead of calculating the basic fuel amount from the output level of the oxygen density sensor, a normal intake pressure sensor with an intake pressure-engine speed map can be employed. In the latter case, the oxygen partial pressure from the oxygen density sensor is used for correcting the calculated basic fuel amount. The sensitivity of the sensor is also corrected.
摘要翻译：一种具有氧气密度传感器的发动机控制系统，其布置在进气系统中的节气门下游的位置处，用于检测新引入发动机的空气量。该传感器是能够检测氧气的连续变化的密度的极限电流检测型。通过使用传感器信号的输出电平的映射数据，根据传感器的输出电平来计算要喷射的燃料量。检测传感器的灵敏度并乘以传感器的输出值，以获得精确的氧分压。可以采用具有进气压力 - 发动机转速图的正常进气压力传感器代替从氧浓度传感器的输出水平计算基本燃料量。在后一种情况下，来自氧浓度传感器的氧分压用于校正计算出的基本燃料量。传感器的灵敏度也得到了修正。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式