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ļ

    1ṹ͹ԭ

    ʹЧ߻תŷȾķϣDZزٵġЧ߻תװܵжΣܾCOHCNOxҪкɷֻ֣ڻĿȼȴڽӽۿȼȵһխСΧڣЧ߻תЧ𵽾áвеŨȲⶨȼȡתɵѹźŻźţECUECUƿȼֵ

    Ŀǰʹõʽʽ֣Ӧʽ

    1ʽ

    ʽĻԪմɹܣʣﯹܣͼ 1ﯹ̶ܹڴаװƵĹ̶УһԵǦĤڱӴӴĽ߶һףϿһﯹǻͨĿף߽ﯹڱ沬Ե״Ӵ˽߶

    ¶ȳ300󣬲ܽʹõȣִڷתӺܿʼֻһECUͼ 2aڣ󲿷ʹôͼ 2bִһԪڷ𶯺20-30sѸٽ¶ȡߣһECUֱӵغ͵Դ

    ﯹܵմǶ׵ģе¶Ƚϸʱ롣ﯹڡһ£ŨӴӴһɢӶʹﯹܳΪһ΢أѹͼ 3ʵʿȼСۿȼȣԽŨĻתʱ٣COHCH2Ƚ϶ࡣЩﯹǦ߻ӦľвʹﯹŨȱΪ㣬ʹﯹڡŨӴǦѹˣﯹĵѹۿȼʱͻ䣺ϡʱѹΪ㣻Ũʱѹӽ1V

    Ҫ׼ȷرֻŨΪۿȼDzܵġʵϵķֻʹۿȼȸһСķΧڲѹ0.1-0.8V֮䲻ϱ仯ͨÿ10sڱ仯8ϣѹ仯ÿ1Os8Σѹֲ䣨۱ڸߵλ͵λйϣޡ

    2ʽ

    ʽöѲϵĵֵı仯仯ƳɵģֳƵʽκʽƣڴǰ˵ĻһѺĤԪͼ 4ڳһָߵİ뵼壬һȱƷȱݣ֮СڶѵĵҲ¶Ȳͬ仯ˣڶʽڲҲһԱʽڷе¶Ⱥ㶨䡣

    ͼ 5ʾECU 2#ӽһ㶨1VѹʽһϣһECU4#ӡųķŨ淢Ũȱ仯仯ʱĵ֮ı䣬ECU4#ϵĵѹҲű仯4#ϵĵѹڲοѹʱECUжŨ4#ϵĵѹڲοѹʱECUжϡͨECUķƣɱֻŨۿȼȸʵʵķƹУʽECUӵ4#ϵĵѹҲ0.1-0.9V֮䲻ϱ仯һʽƵġ

    2ļ

    Ļ·ͼ 6ʾ

    1ļ

    𿪹ڡOFFĵñ߶мԴӣͼ 6Ķ12ĵ裨ͼ 7ֵӦϱ׼ֵһΪ4-40ֵμ峵˵飩粻ϱ׼Ӧ󣬽ӺԱһļ⡣

    2ѹļ

    ѹʱӦȰͷձ⳵͵ĵ·ͼѹһϸߣȻڷתʱϲѹЩҲԴӹϲڲķѹ˾СγɴӹϲڵOX1OX2ֱӲѹV׷ϸһֱ͹ϼڵOX1OX2ӣ

    ڶķѹмʱʹָ͵ĵѹԱֱ۵طӳѹı仯⣬ѹӦǵ̣ͨΪ2V͸迹迹̫ͻġ

    AV׷ѹļ

    ٽȳ¶ȣ𶯺2500r/minתת2min

    ڰѵѹĸʽӹϲڵE1׻ظʽӹϼڵOX1OX2׻ͷϵߣͼ 8

    ÷2500r/minҵתٱתͬʱѹָܷ0-1V֮ذڶ10sڵѹָڶ£ŷƵĽУķѹ0.4V²ϱ仯1Osڷѹı仯Ӧ8Ρ

    ѹָ1Osڵİڶڻ8Σ˵ϵͳѹָ10sڵİڶ8Σ˵ϵͳл̿ʹȽͣʱӦ÷2500r/minתתԼ2minĻ̿ѹָ仯ɻΪ𻵻ECUƵ·йϡ

    Ƿ𻵣ɰ飺ͷʹECUӣѹֱѹӣͼ 9Ȼ󣬷תʱѿڽϵǿܻͨܣΪγϡʱѹӦ½0.1-0.3Vѿܻͨܣٰˮ´ͷһ4-8Kĵˮ´סĽڣΪγŨʱѹӦ0.8-1.OVҲͻȻ»ɿ̤ķıŨȡͻȻ̤ʱŨѹӦͻȻɿ̤ʱϡѹӦ½

    ڻŨȱ仯ʱѹӦظı䣬˵йϡʱɲȥһܣʹתϵǦ̿Ȼٲԡѹܰɱ仯˵á

    ļͼ 10

    BCOROLLA4A-C4A-GE4A-FEļ

    ٽ2500r/minתת9Osϣʹȳ¶ȣѹʺ4A-CĹϲOXף4A-GEϲE1ףӣʺE4A-GEϲVFףӣͼ 11ʾ

    ڶ4A-CӦڱַתΪ2500r/minʱ⣬ѹָ1Osں0-6VΧڰڶ8ϣӦϸؼϵͳĵߺͽͷ

    ۶4A-GEڱַ2500r/minͬʱõ߿ӹϲϵTE1ףȻõѹѹָ1Osڰڶڻ򳬹8Σʾѹָڶ8Σ0ϣӦTE1ĵߣԱ2500r/minתٵ£ȡE1VF֮ĵѹ˵ѹOVϣѹΪ㣬ӷָʾ϶ȡϴ룬Ȼݹϴһ鲢Ҫй

    ܶ4A-FEֻʹ1OMʽѹʽĵѹܻECUⷽ£

    Ӵ˳ŵҵһͷർԱʶߵɫͼ 12Ȼʹ1200r/minתת2minϣһת٣ѹʲɫ߽ͷı棬ѹĸʽӵأʱѹӦO-1V֮䣬ѹO-1VΧڣѿͷһӵ߽ɫߺ͵õѹӦС0.2V˵ѹڻС0.2VǴ򴫸йϣԵĵѹ0.2VϣȥӵߣϨѵ𿪹תONλ𶯷¼ɫߵĵѹ˵ѹΪ0.3-0.6VӿƵԪECU𻵣ѹ0.6VǵӿƵԪϡӲɫڶ·ѹС0.6VǵӿƵԪϡӲɫڶ·

    3ŵļ

    ŵõǴԪECUͼ 13ʾ4ߣ2źߺ͵ߣ2ǼԪĵԴߺͽӵߡôDRBIIDRBǽвԣûDRBIIDRBǵ£ɲԷ

    Aø迹ʽñв԰ͷԴABӼĵֵ£ֵΪ5-7ֵΪǼȵնϣӦ

    Bѹвõڽ£¶ȶתʱCDĵѹֵӦΪ0-1V

    õĵѹֵ0Vұֲ䣬跴սţʹתٱ仯ʱѹŵĿն䣬ãѹֵΪ0V˵Ѿ𻵡

    õĵѹֵ1Vұֲ䣬ȥϵһܣûϡʱѹֵʼ仯˵Ч˵𻵣Ӧ

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