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當(dāng)前位置: 首頁>>新聞中心>>行業(yè)動態(tài)自動變速箱換擋沖擊過大故障診斷及排除

自動變速箱換擋沖擊過大故障診斷及排除

發(fā)布日期: 2023-09-03 來源: http://njzhuiri.cn/ 點擊: 0

故障現(xiàn)象

Fault phenomenon
起步中由停車擋或空擋掛入倒擋或前進(jìn)擋時,汽車振動較嚴(yán)重
When shifting from parking or neutral gear to reverse or forward gear during starting, the car vibrates severely
行駛中,在自動變速器某個擋位或全部擋位升擋的瞬間,汽車有較明顯的沖擊
During driving, there is a noticeable impact on the car at the moment of upshifting in one or all gears of the automatic transmission
故障原因
Fault cause
發(fā)動機(jī)怠速過高
Engine idle too high
節(jié)氣門拉索或節(jié)氣門位置傳感器調(diào)整不當(dāng)
Improper adjustment of throttle cable or throttle position sensor
升檔過遲
Late upshift
主調(diào)壓閥故障
Main pressure regulating valve malfunction
換擋執(zhí)行元件打滑
Shift actuator slipping
油壓電磁閥不工作
The oil pressure solenoid valve is not working
電腦故障
Computer malfunction
故障診斷及排除
Fault diagnosis and troubleshooting
檢查發(fā)動機(jī)怠速。裝用自動變速器的汽車的發(fā)動機(jī)怠速一般為750r/min左右。若怠速過高,應(yīng)按標(biāo)準(zhǔn)予以調(diào)整。
Check the engine idle speed. The engine idle speed of cars equipped with automatic transmissions is generally around 750r/min. If the idle speed is too high, it should be adjusted according to the standard.
檢查節(jié)氣門拉索或節(jié)氣門位置傳感器的調(diào)整情況。如不符合標(biāo)準(zhǔn),應(yīng)重新予以調(diào)整。
Check the adjustment of the throttle cable or throttle position sensor. If it does not meet the standards, it should be adjusted again.
檢查真空式節(jié)氣門閥的真空軟管。如有破裂,應(yīng)更換;如有松脫,應(yīng)重新連接。
Check the vacuum hose of the vacuum throttle valve. If there is a crack, it should be replaced; If there is looseness, it should be reconnected.
做道路試驗。如果有升擋過遲的現(xiàn)象,則說明換擋沖擊大的故障是升擋過遲所致。如果在升擋之前發(fā)動機(jī)轉(zhuǎn)速異常升高,導(dǎo)致在升擋的瞬間有較大的換擋沖擊,則說明離合器或制動器打滑,應(yīng)分解自動變速器,予以修理。
Conduct road tests. If there is a phenomenon of late upshifting, it indicates that the fault with high shifting impact is caused by late upshifting. If the engine speed abnormally increases before upshifting, causing a significant shift impact at the moment of upshifting, it indicates that the clutch or brake is slipping, and the automatic transmission should be disassembled and repaired.
檢測主油路油壓。如果怠速時的主油路油壓高,則說明主油路調(diào)壓閥或節(jié)氣門閥有故障,可能是調(diào)壓彈簧的預(yù)緊力過大或閥心卡滯所致;如果怠速時主油路油壓正常,但起步進(jìn)擋時有較大的沖擊,則說明前進(jìn)離合器或倒擋及高擋離合器的進(jìn)油單向閥閥球損壞或漏裝。對此,應(yīng)拆卸閥板,予以修理。
濟(jì)南自動變速箱維修
Check the oil pressure of the main oil circuit. If the oil pressure in the main oil circuit is high at idle, it indicates that there is a malfunction in the main oil circuit pressure regulating valve or throttle valve, which may be caused by excessive preload of the pressure regulating spring or stuck valve core; If the main oil pressure is normal during idle, but there is a significant impact during starting and shifting, it indicates that the oil inlet check valve ball of the forward clutch, reverse gear, and high gear clutch is damaged or missing. For this, the valve plate should be disassembled and repaired.
檢測換擋時的主油路油壓。在正常情況下,換擋時的主油路油壓會有瞬時的下降。如果換擋時主油路油壓沒有下降,則說明減振器活塞卡滯。對此,應(yīng)拆檢閥板和減振器。
Detect the main oil pressure during gear shifting. Under normal circumstances, there will be an instantaneous decrease in the main oil pressure during gear shifting. If the main oil pressure does not decrease during gear shifting, it indicates that the shock absorber piston is stuck. For this, the valve plate and shock absorber should be disassembled and inspected.
電子控制自動變速器如果出現(xiàn)換擋沖擊過大的故障,應(yīng)檢查油壓電磁閥的線路以及油壓電磁閥工作是否正常、電腦是否在換擋的瞬間向油壓電磁閥發(fā)出控制信號。如果線路有故障,應(yīng)予以修復(fù);如果電磁閥損壞,應(yīng)更換電磁閥;如果電腦在換擋的瞬間沒有向油壓電磁閥發(fā)出控制信號,說明電腦有故障,對此,應(yīng)更換電腦。
If there is a fault with excessive shifting impact in the electronic controlled automatic transmission, the circuit of the oil pressure solenoid valve and whether the oil pressure solenoid valve is working properly should be checked, and whether the computer sends a control signal to the oil pressure solenoid valve at the moment of shifting. If there is a fault in the circuit, it should be repaired; If the solenoid valve is damaged, it should be replaced; If the computer does not send a control signal to the oil pressure solenoid valve at the moment of shifting, it indicates that the computer is malfunctioning and should be replaced.

關(guān)鍵詞: 自動變速器故障檢測一般程序 自動變速箱常見幾種狀況有哪些? 汽車變速箱進(jìn)水后怎么維修? 汽車變速箱基礎(chǔ)知識的特點講解 自動變速箱維修保養(yǎng)要注意什么?

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