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1. CN101258313 - Fuel system for an internal combustion engine

Office China
Application Number 200680024327.6
Application Date 30.05.2006
Publication Number 101258313
Publication Date 03.09.2008
Grant Number 101258313
Grant Date 09.11.2011
Publication Kind B
IPC
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
35
Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for
F02D 35/00
CPC
F02D 41/406
F02D 41/08
F02D 41/16
F02D 41/2422
F02D 41/3094
F02D 41/3845
Applicants Toyota Motor Co., Ltd.
丰田自动车株式会社
Inventors Mashiki Zenichiro
益城善一郎
Agents liuchun lei
北京东方亿思知识产权代理有限责任公司 11258
Priority Data 2005197833 06.07.2005 JP
Title
(EN) Fuel system for an internal combustion engine
(ZH) 用于内燃机的燃料系统
Abstract
(EN)
An engine ECU executes a program including the step (S100, S110) of detecting an engine speed NE and an engine load, the step (S130) of determining whether fuel can be injected at normal feed pressure from an in-cylinder injector during idling (YES in S120), the step (S150) of detecting or estimating a fuel temperature T in a high-pressure delivery pipe, the step (S200) of stopping the high-pressure fuel pump and injecting fuel from the in-cylinder injector at the normal feed pressure when the fuel temperature T is not greater than T(0) (NO in S160), the step (S190) of stopping the high-pressure fuel pump and injecting fuel at the pressure greater than the normal feed pressure when the fuel temperature T is greater than T(0) and not greater than T(1) (YES in S160 and NO in S170), and the step (S180) of driving the high-pressure fuel pump to inject the fuel at high pressure when the fuel temperature T is greater than T(1) (YES in S170).

(ZH)

一种发动机ECU,其执行包括以下步骤的程序:对发动机转速NE及发动机负载进行检测的步骤(S100,S110),判定在怠速期间(S120为“是”)是否能够从缸内喷射器以正常供应压力喷射燃料的步骤(S130),对高压输送管内的燃料温度T进行检测或估计的步骤(S150),当燃料温度T不大于T(0)(在S160为“否”)时停止高压燃料泵并从缸内喷射器以正常供应压力喷射燃料的步骤(S200),当燃料温度T大于T(0)但不大于T(1)(在S160为“是”而在S170为“否”)时停止高压燃料泵并以大于正常供应压力的压力喷射燃料的步骤(S190),以及当燃料温度T大于T(1)(在S170为“是”)时驱动高压燃料泵来以高压喷射燃料的步骤(S180)。

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