北京信息职业技术学院
I 摘 要
随着当今经济的快速发展，轿车越来越普遍的作为普通的消费品进入百姓家庭。人们在追求享受的同时也越来越在乎汽车的使用经济性和驾驶的简单性，于是自动变速器在轿车中应运而生，满足了人们对汽车的舒适性和驾驶的简单性。
汽车自动变速器包括有级变速器和无级变速器（CVT ）两种。别克通用轿车装配的是自动有级变速器(AT),该变速器与前置前驱发动机相匹配输出更强劲的动力。自动变速器主要由液力变矩器、油泵、齿轮变速机构、人机控制系统、阀板5个部分组成。常见的变速器的故障原因有液力变矩器的故障、油泵的故障以及阀体的故障维修。
关键词：自动变速器;无级变速器;液力变矩器;油泵
Abstract
With the rapid development of economy, cars more and more popular as ordinary consumer goods into people family . People in the pursuit of enjoy and at the same time getting care about car usage economy and driving the simplicity of automatic transmission, then came into being in the car to meet people for the automobile driving comfort and convenience.
Auto automatic transmissions include variable transmission and variation (CVT) two kinds. BUICK car assembly is automatically have variable transmission (AT), the transmission is matched with lead precursor engine output stronger impetus, Automatic transmission mainly by the hydraulic torque converter, oil pump, gear shifting agency, man-machine control system, the valve plate five parts. Common transmission fault reason has hydraulic torque converter faults, and the body of oil pumps failure breakdown maintenance.
Key Words:Automatic Transmission; Continuously Variable Transmission;
Hydraulic torque converter; Pump
北京信息职业技术学院
III 目录
摘要...................................................................................................... Ⅰ Abstract (Ⅱ)
第一章 自动变速器的工作原理和组成 (2)
1.1自动变速器的工作原理 (2)
1.2自动变速器的组成 (4)
1.2.1液力变矩器 (5)
1.2.2齿轮变速系统 (6)
1.2.3换挡执行器 (7)
1.2.4液压自动操纵系统 (7)
1.2.5电子控制系统 (8)
第二章 通用别克系列自动变速器 (9)
2.1自动变速器(4T60-E)的识别及结构 (9)
2.2 4T60—E 自动变速器系统描述 (11)
2.2.1系统电子元件描述 (11)
2.2.2自动变速器控制输入系统组成 (14)
2.2.3变速器温度开关 (16)
2.2.4热模式运作 (16)
第三章 别克自动变速器（4T60-E ）的诊断与维修 (17)
3.1系统诊断 (17)
3.1.1变速器的路面测试法 (17)
3.1.2 4T60-E 液力自动变速器管路压力检测步骤 (17)
3.1.3 4T60-E 自动变速器电气故障诊断流程图 (20)
3.1.4 影响4T60-E 自动变速器工作的发动机电脑(ECM)故障码 (28)
3.2系统维修 (29)
3.2.1传动间歇中断及档位错误 (29)
3.2.2冷起动时，变速器噪声很大 (30)
3.2.3强行换高档粗暴 (31)
3.2.4换速档滞后或不能换高档 (34)
致 谢 (34)
参考文献 (35)
