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1、汽车油改气后必须加装点火提前角控制器汽车油改气后会出现油气混烧、动力下降、加速性能差、气耗大、故障指示灯亮、回火放炮等不足或故障现象。采用正确加装、调试点火提前角控制器及仿真控制器，选用合适的火花塞，进行功率阀、怠速阀的调整等方法，可以有效地克服天然气汽车改装后的不足、消除各种故障，是保障汽车油改气之效果的必要措施。一、汽车油改气后必须加装点火提前角控制器（一）加装点火提前角控制器的重要性天然气主要成分是甲烷，燃点高达650度以上，化学性质比较稳定，不易点燃，燃烧速度比汽油略低，爆发压力比汽油小。在天然气/汽油双燃料汽车的使用中，为了确保两种燃料都能正常工作，发动机的压缩比一般采用的是汽油机的
2、压缩比，在燃用天然气时，天然气辛烷值高的优势就不能发挥。此外，压缩比不变也不能适应两种燃料的滞燃期和燃烧速度的不同要求，而点火提前角与压缩比有较强的相关性，且易于改变，当燃用天然气时，因辛烷值高允许采用较大的点火提前角，同时，也因为天然气燃烧速度低于汽油，也要求较大的点火提前角。为提高天然气的热效率，提前角相对汽油必须增加8-15度2。若不改变原发动机点火提前角，使用天然气时会出现燃料始点滞后，汽缸压力升高率低，燃烧温度低，传热损失增多，排温增高，热效率降低现象。因此，有必要加装一种可以保证为天然气、汽油两种燃料工况都提供最佳点火提前角的自适应燃料点火提前角控制器，能够使点火提前角随燃料变化而
3、自适宜变化。（二）点火提前角控制器的作用点火提前角控制器是在不改变原机结构情况下，适当把点火提前角提前，可以保证天然气稳定燃烧，提高发动机的功率。点火提前角控制器能使天然气/汽油两用燃料汽车燃用不同的燃料时，能自动改变点火提前角，从而保证发动机在不同的转速时都在最佳点火提前角下工作，它既能兼顾燃油、燃气两种条件，同时对原发动机压缩比和燃烧结构等均不做变动，点火提前角控制器能根据燃料转化开关的位置，通过单片机控制实现对两用燃料汽车不同点火提前角的精确控制。安装这种自适应点火提前角控制器的汽车发动机功率、扭矩增大，能耗下降，这种自适应燃料点火提前角控制器能够一定程度地提高两用燃料汽车发动机的动力性
4、和燃油经济性，对解决车辆油改气后表现出的上坡加速性能差、气耗大，回火放炮等现象有明显的改善作用。（三）关于点火提前器的安装与调试1安装注意事项：（1）确认点火提前器的线束设置与需要改装的车型一致。（2）安装时应远离雨水潮湿处及高温处（3）应远离点火高压线，并保持良好的绝缘。2接线（1）带有一个接头的短线束，通常不使用，对于具有相应传感器的车型，可以连接。（2）带有一对接插头的线束，连接曲轴位置传感器。（3）不带接插件的线束中：红色线：12V电源，接点火开关。黑色线：电源地线，搭铁。蓝色线：开关控制，接转换开关气态输出。黄色线：节气门控制，接节气门位置传感器。不同厂家或许线束颜色不一，但接线原理
5、相同。3开关设定点火提前角控制器上有三个微动开关，提前角的设定由开关1、2完成，具体设法见表，据实际测试，角度应在12o或15o为宜，不同车型，要求不一，应以实际测试效果来确定。车型由开关3设定，一般国产车将3设为OFF,沃尔沃等特殊车型设为ON。具体设置方法详见表14调试注意事项：（1）顺时针将可调电位器调整到头。此时，红色发光管点亮。点火提前角加入。（2）逆时针调节可调电位器，直到红色发光管熄灭。此时，不改变点火提前角。（3）调整好后，在燃气状态下，红色发光管在加速时点亮，不加速时熄灭。5.节气门传感器信号线的判定：节气门传感器位于节气门附近，有3根线，用万用表交流电压档测量，红表笔接插头
6、中三根线中的任一线，黑表笔搭铁，怠速时电压应在0.5v左右，随着发动机转速的升高，电压应随之升高，否则就是另外两根线，依次判定，直到找出为止。二、汽车油改气后必须加装仿真控制器（一）不加仿真器所存在的问题：传统的化油器车改气都是采用油气切换开关，切断在烧气时油泵线路，停止油泵继续泵油，防止油气混烧。 而现在的车都属于微电脑控制，电喷车的油改气，一方面，为了防止喷油嘴长期不用而堵塞，每次启动时都要求用油启动，然后转为烧气运行，这样每次油泵启动后都会在油泵和喷油嘴之间的管路中存余有近L的汽油随气一起燃烧，这样就没有彻底地杜绝油气混烧，而且每天启动的次数越多，耗掉的汽油也就越多，这正是电喷车油改气后
7、汽油莫名其妙减少的根本原因，除此之外，喷油嘴不管是燃气状态还是烧油状态都处于开启状态，也不利于延长喷油嘴的寿命。所以电喷车的油改气在切断油泵电路时，还应该同步切断喷油嘴电电路，但又不能用普通的开关单一地切断喷油嘴电路，否则原车电脑不能检测到喷油嘴信号的存在，就会进入到故障模式。这就要求在切断喷油嘴电路的同时，还应该向原车ECU发送一个喷油嘴电路仍在工作的虚拟信号。另一方面由于燃气时原车氧传器检查、发送的信号与烧油时也有所不同，原车的ECU自学习功能将记忆下使用CNG时的状态，汽油ECU会感知到这是一个故障并且记录下来，而进入故障模式，在转换到使用汽油时，将会影响汽油的控制过程，从而严重影响汽油
8、的工作过程，主要表现为烧油时怠速不稳、供油不畅、加速无力、行驶中车辆“发吐”等现象，至使车辆在燃烧一段时间的天然气后重新烧油时油耗大幅度上升或根本就无法正常运行，双燃料汽车缩水为只能烧气不能烧油的汽车，制约了双燃料汽效能的充分发挥，这种缺陷的存在使得广大用户苦不堪言，有的用户甚至为此拆掉了燃气装置，彻底放弃燃用天然气，造成了改装投资的浪费，这已经成为发展天然气汽车的瓶颈。（二）天然气汽车信号仿真控制器作用为避免对燃油系统的影响，双燃料汽车应该采用一个信号仿真控制器来解决这种干扰的问题。信号仿真控制器的作用是：使用天然气时使喷油嘴的动作停止，分别模拟一个喷油嘴仍在动作的信号及与燃油相同的氧传感器
9、仿真信号，使原车汽油ECU感知燃气时与燃油相同，从而提供正常的点火管理控制功能，它能兼顾燃油、燃气两种条件，以保证双燃料汽车在油、气状态下都能正常工作。对改善天然气汽车目前存在的不足、充分发挥天然气汽车的潜力，具有积极的意义。（三）关于信号仿真控制器的安装与调试1安装注意事项：(1）确认信号仿真控制器的线束与需要改装的车型一致。（2）安装时应远离雨水潮湿处及高温处（3）应远离点火高压线，并保持良好的绝缘。2接线仿真器的接线分为三束，一束为接到喷嘴的线束，一束为接到氧传感器的线束，一束为电源线束，安装时：（1）将原车的喷嘴线束从喷嘴拨下，插到仿真器线束相应的接播件上，仿真器线束上的另外一个接插件
10、插到喷嘴上。（2）白色线和黄色线：接到氧传感器的线束，先将氧传感器信号输出线剪断，氧传感器信号输出端接白色线，通往原车电脑的一端接黄色线（注意：为了方便更换氧传感器，通常在氧传感器插头后做剪断处理）。（3）电源线束中，蓝色线接到转换开关的气态输出端，黑色线接电源负极（搭铁）。不同厂家或线束颜色不一，但接线原理相同。3开关设定仿真器上有二个微动开关，具体设置方法见表2，一般设为第一种，设置不对，仿真器不起作用，车的故障灯会仍亮，切记4氧传感器信号输出线的判定先找到氧传感器，一般氧传感器具有四根线，其中只有一根为氧传传感器与发动机ECU的信号连接线，将万用表打至直流电压档，量程选2.5档，将万用表
11、红表笔接到氧传感器插头中的任一根线，黑表笔搭铁，在烧油状态下,氧传感器信号线向发动机ECU输出的直流电压应在01V之间波动，每10S约7次左右，否则就是另外三根线，依次判定，直到找出为止。5氧传感器测量中的注意事项测量氧传感器要用高内阻的电压表，以防测试时损坏氧传感器，另外电压表量程以直流为宜，电压表要用指针式的，便于观察。6.仿真器信号频率的调整方法在烧气模式下，用直流电压表测量仿真器与原车ECU连接端的对地电压，输出电压应在0.2-0.8之间波动,调整仿真器电位器，直到仿真信号在0.2-0.8之间的波动频率与烧油时相同为止，即仍为每10S约7次左右。三、直喷改装是否也需要加装点火提前角控制
12、器和仿真器的问题这个问题不能一概而论，关键看新装的燃气电脑本身有无点火提前角自动调节和氧传感功能，不同厂家生产的燃气电脑功能不一，价格各一，有的缩水简装版的燃气电脑只有油泵切断、油嘴仿真功能，并无点火提前角调节和氧传感功能，这种就必须加，加了点火提前角控制器，动力在现有基础上更好，气耗更低，加了仿真器可杜绝油改气后一些莫名其妙的怪现象，自已如何判定新装的燃气电脑是否具有这两个功能呢？改装前看燃气电脑的安装说明和接线示意图，改装后看车上的实际接线，如果燃气电脑预留有原车曲轴位置传感器和节气门传感器相连的插头和线，说明该燃气电脑具有点火提前角的调节功能，反之有反。如果燃气电脑留有与原车氧传感器相连
13、的两根线，说明燃气电脑有氧传感仿真功能，反之则无，但要注意，有的燃气电脑虽也留有一根与氧传感器相连的线，但只有一根，这根线是利用原车氧传感器检测烧气时尾气的性质，从而向燃气电脑反馈一个信号，以此控制4个喷气嘴的时时喷射量，并非具有氧传感仿真功能，具有氧传感仿真功能的燃气电脑，最明显的一个特征就是与氧传感器相连的线是两根而不是一根，对不具有氧传感仿真功能的燃气电脑，就必须要加装仿真控制器。四、汽车油改气后必须换用 “天然气专用火花塞”由于天然气燃烧速度低于汽油，要求供给较大的点火能量，一般的汽车火花花塞不能满足要求，经换用多种火花塞实际测试表明，湘火炬3极“天然气专用火花塞”（型号5407），能
14、较好地满足天然气燃烧的需求，这种火花塞市场参考价8元一颗，一车付30多元，烧气烧油效果非常好，在这个问题上，不要迷信所谓的进口火花塞，买得贵，不如买得对，合适才是最好的。五、关于油改气后高速下烧气时，空档熄火或踏下离合器熄火的解决方法熄火的原因是高速状态下空气的进气量增多，导致气缸内混合气过稀而造成，如果改的是直喷式，可用PC调燃气电脑数据，加大CNG的喷射量或更换喷射孔稍大一点的喷气轨，如是自吸式，可调节减压阀上怠速阀，同样是加大CNG的供气量，最简单的方法，用一封口胶带将空气进气管口封一部分，其目的是高速状态下减少了空气的进气量，间接地提高烧气时气缸内混合气的浓度，这种方法，烧气时没什么影
15、响，但烧油时，由于进气口面积减少，空气进气量减少，烧油时会出现混合气浓、油耗增大的问题，所以，对很少烧油的改装车辆可采用此种方法，而对于经常在油气之间换用（如常用油跑长途）的车辆，尽可能采用其他方法。六、油改气后功率阀的调整方法功率阀就是与原进气支管相连的气管上的一个阀，待发动机运行10分针，水温表升到中间，将发动机提速使转速表升到3000转/分钟，此时先将功率调节螺母顺时针旋转直至发动机转速下降的现象，然后再将螺母逆时针方向旋转，直至发动机转速上升，找出发动机转速上升和下降时调节螺母的位置，然后将螺母逆时针转到90o180o即可。七、油改气后怠速阀的调整方法怠速阀就是减压阀上的一个螺钉，想法
16、使发动机转速保持在1000转左右，调节怠速螺钉，先顺时针转动，再逆时针转动，随着螺钉调整，发动机转速跟着变动，将调节螺钉调到发动机转速最高时的位置即可。八、油改气效果好坏，三方面保障油改气后很多人反应存在这样那样的问题，汽车油改气后效果好与不好，涉及三个方面：一是必须要加点火提前角控制器及加仿真控制器，且保证接线调试正确；二是怠速阀和动力阀要调试正确，三是更换多极“天然气专用火花塞。只要以上三个方面保证了，油改气效果应该是很好的，以本人车辆为例，油改气后已跑了近万余KM，力量强劲，几乎与油无异 本帖最后由 sdhongliang 于 2012-04-19 09:03:22 编辑 （英文版 ）
17、Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of m
18、ajor initiatives. The two regulations supporting each other, the adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on
19、 vertical gauge, draw the party organizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation
20、 of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. and revi
21、sed the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines and column 1 by 2015 to strengthen party laws and regulations focus. Two party regulations revision work lasted a Years, pooli
22、ng the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the partys leadership, to solve the masses of the
23、people reflect a focus on the problem. The new revision of the and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the
24、partys eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of in based on revised, the promulgation and implementation of January 2010, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage th
25、e party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not allowed to hard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisi
26、ons excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regulations repeat; the fourth is to clean the theme is not prominent, not for the existing problems, and is narr
27、ow, only needle of county-level leading cadres above. is in 1997 based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully
28、 meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution
29、, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to and the two is likely to be more relevant regulations first ame
30、ndment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communi
31、st Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations made clear instructions. According to the central deployment
32、, the Central Commission for Discipline Inspection from 2014 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amen
33、dment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs Department The first pa
34、rty committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of China, on 7 September 2015, the general office of the Central Committee of the Party issued a notice to soli
35、cit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission
36、for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee Political Bureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations
37、 revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, embodies the party. Second, and revision of the basic principles of two party regulations revision work and im
38、plement the partys eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revised and , highlighting the ruling party characteristics, serious discipline, the discipline quite in front of
39、the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent and . Main principle is: first, adhere to the party constitution to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party cons
40、ciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that no rules, no side round. Party constitution is the fundamental law, the party must follow the general rules. In early 2015 held the eighth session of the Central Commission for Discipline Inspecti
41、on Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also the general rules. the revision of the and is Method in adhere to the regulations established for the purpose of combining rule of virtue is to
42、adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the r
43、egulations governing the party and the party. The Party of rule of virtue de, mainly refers to the partys ideals and beliefs, excellent traditional style. The revised the closely linked to the self-discipline, insisting on the positive initiative, for all members, highlight the vital few, emphasized
44、 self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised Ji method separately, Ji, Ji Yan to Method, as a negative list, emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction
45、, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at t
46、he present stage, the main problems of Party members and cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especially the partys eighteen years strict political discipline and political rules, organization and discipline and to implement the central eight p
47、rovisions of the spirit against the four winds and other requirements into Disciplinary provisions. Not one pace reachs the designated position, focusing on in line with reality, pragmatic and effective. After the revision of major changes, major changes in the and modified and needs to grasp several key problems (a) adhere to according to regulations governing the party and party with morals in combination, for at the present stage, the leader