电磁阀
电磁阀工作表---1
GEAR/ACTION Park P-to-R Transition Reverse R-to-N Transition Neutral N-to-D (1st) Transition 1st 1st-to-2nd Transition 2nd 2nd-to-3rd Transition MODULATING PRESSURE CONTROL REG MOD REG REG REG REG MOD MOD MOD MOD SHIFT PRESSURE CONTROL REG MOD ON MOD REG MOD ON MOD ON MOD 1–2/4–5 SHIFT OFF OFF OFF OFF OFF OFF OFF ON OFF OFF 3–4 SHIFT ON ON OFF ON ON ON OFF OFF OFF OFF 2–3 SHIFT OFF OFF OFF OFF OFF OFF OFF OFF OFF ON TORQUE CONVERTER CLUTCH OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF
电磁阀工作表---2
GEAR/ACTION 5th-to-4th Transition 4th 4th-to-3rd Transition 3rd 3rd-to-2nd Transition 2nd MODULATING PRESSURE CONTROL MOD MOD MOD MOD MOD MOD SHIFT PRESSURE CONTROL MOD ON MOD ON MOD ON 1–2/4–5 SHIFT ON OFF OFF OFF OFF OFF 3–4 SHIFT OFF OFF ON OFF OFF OFF 2–3 SHIFT OFF OFF OFF OFF ON OFF TORQUE CONVERTER CLUTCH OFF OFF OFF OFF OFF OFF
TC Pressure Limit Valve 2–3 Overlap Valve
Solenoid Valve Cap Solenoid Valve Cap Bolt (M6X32) Bolt (M6X30)
8 9 10 11
3–4 Shift Solenoid Valve TCC Solenoid Valve 1–2/4–5 Shift Solenoid Valve 2–3 Shift Solenoid Valve
3rd
3rd-to-4th Transition 4th 4th-to-5th Transition 5th
MOD
MOD MOD MOD MOD
ON
MOD ON MOD ON
OFF
OFF OFF ON OFF
OFF
ON OFF OFF OFF
OFF
OFF OFF OFF OFF
OFF
OFF OFF OFF OFF
2nd-to-1st Transition
1st 1st-to-N Transition Neutral N-to-R Transition
MOD
MOD REG REG REG
MOD
ON REG REG MOD
ON
OFF OFF OFF OFF
OFF
OFF ON ON ON
OFF
OFF OFF OFF OFF
722.6自动变速器培训
奔驰722.6自动变速器
概述
• 722.6变速器是奔驰公司自主研发的5前速全电子 控制变速器。主要应用在96年以后的大部分车型 中。 • 该变速器控制单元是根据接收变速器内的两个速 度传感器与控制器区域网络（CAN）提供的加速 踏板位置、车速、发动机转速、变速器温度等信 息进行综合分析，并通过3个换档电磁阀、2个压 力调节阀及1个TCC锁止控制电磁阀来决定控制升 档还是降档的换档时机以及变扭器锁止离合器接 合与分离时机的。
选档杆功能
722.6机械部件的组成
1 2 3
B1 Brake K1 Clutch K2 Clutch
5 6 7
K3 Clutch B2 Brake F2 Overrunning Clutch
4
B3 Brake
8
F1 Overrunning Clutch
换档执行元件排列顺序
电磁阀位置说明
1 2 3 4
5
6 7
Leaf Spring
Modulating Pressure Solenoid Valve Shift Pressure Regulating Solenoid Valve
12
13
Lead Frame
Upper Valve Body (Shift Plate)
电磁阀的作用
• y36y3：控制变速器1-2档和4-5档；（电磁阀在 换档的瞬间工作，换档完毕后电磁阀处于OFF状 态）； • y36y4：控制变速器的2-3档；（电磁阀在换档的 瞬间工作，换档完毕后电磁阀处于OFF状态）； • y36y5：控制变速器的3-4档。（电磁阀在换档的 瞬间工作，换档完毕后电磁阀处于OFF状态）； • y36y1：用于控制变速器的工作压力； • y36y2：用于控制变速器换档时的换档压力； • y36y6：用于控制锁止离合器的工作。 • 注：所有电磁阀的工作均为百分比控制
阀体---1
1
Upper Valve Body
6
3–4 Overlap Valve
2
3 4 5
Manual Valve
3–4 Holding Pressure Shift Valve 3–4 Command Valve 3–4 Shift Pressure Shift Valveressure Regulating Valve
OFF
OFF OFF OFF OFF
Reverse
R-to-P Transition Park REG = Constant Pressure OFF = Zero Pressure
MOD
REG REG
ON
REG REG
OFF
OFF OFF
OFF
ON ON
OFF
OFF OFF
OFF
OFF OFF
ON = Regulated Line Pressure MOD = Modulating Pressure